Bump version to v202611-00076

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitignore

@@ -4,3 +4,4 @@ Cargo.lock.bak
 www/dungeoncraft.wasm
 www/mq_js_bundle.js
 play/
+dist/

Cargo.lock

@@ -14,6 +14,28 @@ version = "0.2.21"
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 checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "812947049edcd670a82cd5c73c3661d2e58468577ba8489de58e1a73c04cbd5d"
+dependencies = [
+ "alsa-sys",
+ "bitflags 2.13.2",
+ "cfg-if",
+ "libc",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad7569085a265dd3f607ebecce7458eaab2132a84393534c95b18dcbc3f31e04"
+dependencies = [
+ "libc",
+ "pkg-config",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.5.1"
@@ -26,6 +48,27 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
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+
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+checksum = "cdeb9d870516001442e364c5220d3574d2da8dc765554b4a617230d33fa58ef5"
+dependencies = [
+ "objc2",
+]
+
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+checksum = "72f5acc6cb2ba439de613abc23857ec3d78374d8ed5ac84e9d11336e87da8649"
+
 [[package]]
 name = "bytemuck"
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@@ -38,6 +81,12 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
+[[package]]
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+checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04"
+
 [[package]]
 name = "cfg-if"
 version = "1.0.5"
@@ -50,6 +99,16 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4356eba6976435498d05a311ee9fc486da3bc81c200d3f0d7dd9703b41913f92"
+dependencies = [
+ "bytes",
+ "memchr",
+]
+
 [[package]]
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@@ -59,6 +118,50 @@ dependencies = [
  "libm",
 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "bitflags 2.13.2",
+ "libc",
+ "objc2-audio-toolbox",
+ "objc2-core-audio",
+ "objc2-core-audio-types",
+ "objc2-core-foundation",
+]
+
+[[package]]
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+dependencies = [
+ "alsa",
+ "block2",
+ "coreaudio-rs",
+ "dasp_sample",
+ "jni",
+ "js-sys",
+ "libc",
+ "mach2",
+ "ndk",
+ "ndk-context",
+ "num-derive",
+ "num-traits",
+ "objc2",
+ "objc2-audio-toolbox",
+ "objc2-avf-audio",
+ "objc2-core-audio",
+ "objc2-core-audio-types",
+ "objc2-core-foundation",
+ "objc2-foundation",
+ "web-sys",
+ "windows",
+ "windows-core",
+]
+
 [[package]]
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 version = "1.5.4"
@@ -68,11 +171,31 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "dasp_sample"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c87e182de0887fd5361989c677c4e8f5000cd9491d6d563161a8f3a5519fc7f"
+
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+dependencies = [
+ "bitflags 2.13.2",
+ "block2",
+ "libc",
+ "objc2",
+]
+
 [[package]]
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 version = "0.1.0"
 dependencies = [
+ "cpal",
  "macroquad",
+ "rfd",
  "serde",
  "serde_json",
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@@ -115,10 +238,34 @@ version = "0.9.5"
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 checksum = "e796cb6894e6418daacea84b28dd4f98d3b32c74d5bb452ba1ecfbf5ad8e84ca"
 dependencies = [
- "hashbrown",
+ "hashbrown 0.15.5",
  "ttf-parser",
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+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
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+checksum = "cd417de3d1d015fc3bfd2b1ea46dfc7bab72ef86f1cc7cc9c78e728b34a6d1fd"
+
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+dependencies = [
+ "futures-core",
+ "futures-task",
+ "pin-project-lite",
+ "slab",
+]
+
 [[package]]
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 version = "0.27.0"
@@ -136,6 +283,12 @@ dependencies = [
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 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.17.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed5909b6e89a2db4456e54cd5f673791d7eca6732202bbf2a9cc504fe2f9b84a"
+
 [[package]]
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@@ -149,12 +302,91 @@ dependencies = [
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+[[package]]
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+version = "2.14.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc4e190f5d26ca7051642629da2c52fc03bde85a03197c99408dcd291734c855"
+dependencies = [
+ "equivalent",
+ "hashbrown 0.17.1",
+]
+
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+[[package]]
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+dependencies = [
+ "cfg-if",
+ "combine",
+ "jni-macros",
+ "jni-sys 0.4.1",
+ "log",
+ "simd_cesu8",
+ "thiserror 2.0.21",
+ "walkdir",
+ "windows-link",
+]
+
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+ "proc-macro2",
+ "quote",
+ "rustc_version",
+ "simd_cesu8",
+ "syn 2.0.119",
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+ "jni-sys 0.4.1",
+]
+
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+
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+dependencies = [
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+ "syn 2.0.119",
+]
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+dependencies = [
+ "cfg-if",
+ "futures-util",
+ "wasm-bindgen",
+]
+
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@@ -167,6 +399,18 @@ version = "0.2.16"
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 checksum = "b6d2cec3eae94f9f509c767b45932f1ada8350c4bdb85af2fcab4a3c14807981"
 
+[[package]]
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+
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+
 [[package]]
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 version = "0.4.16"
@@ -209,7 +453,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dcbaea978d741f3b60ced666b06a2a1e4a2bc81cb8b9dd29f4a40965e1f59e65"
 dependencies = [
  "libc",
- "ndk-sys",
+ "ndk-sys 0.2.2",
  "objc-rs",
  "winapi",
 ]
@@ -234,12 +478,52 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "bitflags 2.13.2",
+ "jni-sys 0.3.1",
+ "log",
+ "ndk-sys 0.6.0+11769913",
+ "num_enum",
+ "thiserror 1.0.69",
+]
+
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+
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+[[package]]
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
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@@ -249,6 +533,28 @@ dependencies = [
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 ]
 
+[[package]]
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+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d0bca838442ec211fa11de3a8b0e0e8f3a4522575b5c4c06ed722e005036f26"
+dependencies = [
+ "num_enum_derive",
+ "rustversion",
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+
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+dependencies = [
+ "proc-macro-crate",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
 [[package]]
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@@ -258,19 +564,154 @@ dependencies = [
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 ]
 
+[[package]]
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+ "bitflags 2.13.2",
+ "libc",
+ "objc2",
+ "objc2-core-audio",
+ "objc2-core-audio-types",
+ "objc2-core-foundation",
+ "objc2-foundation",
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 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
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+[[package]]
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+dependencies = [
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+]
+
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+ "js-sys",
+ "libc",
+ "log",
+ "objc2",
+ "objc2-app-kit",
+ "objc2-core-foundation",
+ "objc2-foundation",
+ "percent-encoding",
+ "pollster",
+ "raw-window-handle",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "windows-sys",
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+version = "1.0.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf54715a573b99ac80df0bc206da022bcd442c974952c7b9720069370852e21f"
+
+[[package]]
+name = "same-file"
+version = "1.0.6"
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+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
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+
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@@ -322,7 +823,7 @@ checksum = "e7a5d71263a5a7d47b41f6b3f06ba276f10cc18b0931f1799f710578e2309348"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 3.0.9",
 ]
 
 [[package]]
@@ -344,6 +845,39 @@ version = "0.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a219298ac11a56ea9a6d2120044824d6f01aeb034955e7af7bc16858527deea"
 
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+dependencies = [
+ "rustc_version",
+ "simdutf8",
+]
+
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+checksum = "e3a9fe34e3e7a50316060351f37187a3f546bce95496156754b601a5fa71b76e"
+
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+checksum = "0c790de23124f9ab44544d7ac05d60440adc586479ce501c1d6d7da3cd8c9cf5"
+
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+checksum = "872831b642d1a07999a962a351ed35b955ea2cfc8f3862091e2a240a84f17297"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "syn"
 version = "3.0.9"
@@ -355,6 +889,85 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
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+checksum = "b6aaf5339b578ea85b50e080feb250a3e8ae8cfcdff9a461c9ec2904bc923f52"
+dependencies = [
+ "thiserror-impl 1.0.69",
+]
+
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+checksum = "09e52cb86a36cede5cb101bf8908837b3e4c6e5e59fe7fd85c23fb56200d189e"
+dependencies = [
+ "thiserror-impl 2.0.21",
+]
+
+[[package]]
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+checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1"
+dependencies = [
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+ "quote",
+ "syn 2.0.119",
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 3.0.9",
+]
+
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+version = "1.54.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b52fd3255258d26fac7264ab5a76b53c13367136dc011d3d6ad4f8ed070396a3"
+dependencies = [
+ "pin-project-lite",
+]
+
+[[package]]
+name = "toml_datetime"
+version = "1.1.3+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "173f25c883cd2176a2d8212155638c0a60d484a9d84546d270866f40f56b6e49"
+dependencies = [
+ "serde_core",
+]
+
+[[package]]
+name = "toml_edit"
+version = "0.25.19+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd43688c4858d7264ae1cf9a9f874a67c3feb74a883b1cd7bebd6a4ea8307218"
+dependencies = [
+ "indexmap",
+ "toml_datetime",
+ "toml_parser",
+ "winnow",
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+
+[[package]]
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+dependencies = [
+ "winnow",
+]
+
 [[package]]
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 version = "0.25.1"
@@ -370,6 +983,81 @@ version = "1.0.27"
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 checksum = "a2c754d6c33795a1c324727428e5a7dedb5b06195f9890bdbcba760d3e246563"
 
+[[package]]
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+dependencies = [
+ "same-file",
+ "winapi-util",
+]
+
+[[package]]
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+version = "0.2.130"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0181c14ddd6c7b8b0b0132a5f1ea2f32be0d893cd3ea97b6e3b28886b8a3d1c"
+dependencies = [
+ "cfg-if",
+ "rustversion",
+ "wasm-bindgen-macro",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.80"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e14e0327cb5368ad60ccb22d04a9827a693c95a926d8d125e9fa39e0baec501"
+dependencies = [
+ "js-sys",
+ "tokio",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.130"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e931a02a39abdbf66966fc35902b5ed58344750a70885bed4ebb3d8eaf28ed9"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
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+version = "0.2.130"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ca4b54280e455bd831e33a6b8e734baf432fe63fbc35c42ac14ce67a043a53a"
+dependencies = [
+ "bumpalo",
+ "proc-macro2",
+ "quote",
+ "syn 3.0.9",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.130"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b1f9c3798725016c6ee5f2f57869ec0831e8bbc0ab0310a86e787e97f41389e"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "web-sys"
+version = "0.3.107"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7d179596ff5ec0f6de4db64d54011bde6289cc49603d3a6e4ce3f329207ab88"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -386,12 +1074,149 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
+dependencies = [
+ "windows-sys",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows"
+version = "0.62.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "527fadee13e0c05939a6a05d5bd6eec6cd2e3dbd648b9f8e447c6518133d8580"
+dependencies = [
+ "windows-collections",
+ "windows-core",
+ "windows-future",
+ "windows-numerics",
+]
+
+[[package]]
+name = "windows-collections"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23b2d95af1a8a14a3c7367e1ed4fc9c20e0a26e79551b1454d72583c97cc6610"
+dependencies = [
+ "windows-core",
+]
+
+[[package]]
+name = "windows-core"
+version = "0.62.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8e83a14d34d0623b51dce9581199302a221863196a1dde71a7663a4c2be9deb"
+dependencies = [
+ "windows-implement",
+ "windows-interface",
+ "windows-link",
+ "windows-result",
+ "windows-strings",
+]
+
+[[package]]
+name = "windows-future"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1d6f90251fe18a279739e78025bd6ddc52a7e22f921070ccdc67dde84c605cb"
+dependencies = [
+ "windows-core",
+ "windows-link",
+ "windows-threading",
+]
+
+[[package]]
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+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "053e2e040ab57b9dc951b72c264860db7eb3b0200ba345b4e4c3b14f67855ddf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f316c4a2570ba26bbec722032c4099d8c8bc095efccdc15688708623367e358"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
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+
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+
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+checksum = "6e2e40844ac143cdb44aead537bbf727de9b044e107a0f1220392177d15b0f26"
+dependencies = [
+ "windows-core",
+ "windows-link",
+]
+
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+checksum = "7781fa89eaf60850ac3d2da7af8e5242a5ea78d1a11c49bf2910bb5a73853eb5"
+dependencies = [
+ "windows-link",
+]
+
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+checksum = "7837d08f69c77cf6b07689544538e017c1bfcf57e34b4c0ff58e6c2cd3b37091"
+dependencies = [
+ "windows-link",
+]
+
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+checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3949bd5b99cafdf1c7ca86b43ca564028dfe27d66958f2470940f73d86d75b37"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
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+version = "1.0.5"
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+checksum = "8c3b93199df0ab874cdf0c6a94f0a0dc3423fe41f1cafb62b8bd7b1deb277aef"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "zlib-rs"
 version = "0.6.8"

Cargo.toml

@@ -17,3 +17,8 @@ codegen-units = 1
 
 [profile.dev]
 opt-level = 1
+
+# desktop builds: system file dialog (xdg portal on Linux) and sound output
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
+rfd = { version = "0.17", default-features = false, features = ["xdg-portal"] }
+cpal = "0.18"

INSTALL.md

@@ -37,6 +37,33 @@ cp ~/.cargo/registry/src/*/macroquad-*/js/mq_js_bundle.js www/
 python3 -m http.server 8080 -d www   # open http://localhost:8080
 ```
 
+### Desktop build
+
+The game also runs as a native program (Linux, Windows, macOS), without server and multiplayer:
+
+```sh
+cargo build --release
+./target/release/dungeoncraft
+```
+
+On Linux the build needs the ALSA headers (`alsa-lib` / `libasound2-dev`); the sound goes through ALSA (PipeWire and
+PulseAudio take it). The settings, the autosave, the campaign progress and the profile are kept as files in the
+data folder: `~/.local/share/dungeoncraft/` (Linux, or `$XDG_DATA_HOME/dungeoncraft`), `%APPDATA%\DungeonCraft`
+(Windows), `~/Library/Application Support/DungeonCraft` (macOS); `DUNGEONCRAFT_DATA` chooses another one.
+*Save Game* and saved campaigns land in its `saves/` folder; *Load Game* opens the system file dialog there (on
+Linux through the desktop portal), and dropping a file onto the window works as well.
+
+Release packages are built by `python3 tools/build_desktop.py [linux] [windows] [macos]` into `dist/`:
+
+- **Linux**: `DungeonCraft-<version>-x86_64.AppImage`, built against glibc 2.28 (distributions from about 2019 on).
+- **Windows**: `DungeonCraft-<version>-windows-x64.exe`, a single file for Windows 10 and newer, cross-compiled on Linux.
+- **macOS**: `DungeonCraft-<version>-macos.zip` with a universal `DungeonCraft.app` (Apple silicon and Intel); only on a
+  Mac. It is signed ad hoc, not notarised: on first start open it with right click -> *Open*.
+
+Linux and Windows need [zig](https://ziglang.org/) (`mise install zig@0.15` works) and
+`cargo install --locked cargo-zigbuild`, plus `rustup target add x86_64-pc-windows-gnu`; the AppImage tool is downloaded
+once into `~/.cache/dungeoncraft/`.
+
 ### Testing the game logic
 
 The tests run natively: a headless simulation of whole games, a savegame round trip, rendering of all music modules and the audio engine:

VERSION

@@ -1 +1 @@
-v202611-00073
+v202611-00076

docs/BALANCE.md

@@ -0,0 +1,51 @@
+# Balance runs
+
+Whole games played headless by the AI brain on every side (`src/balance.rs`), deterministic per seed:
+
+```bash
+cargo test --release balance_ -- --ignored --nocapture --test-threads=3
+BALANCE_SEEDS=16 cargo test --release balance_difficulty -- --ignored --nocapture   # more seeds
+BALANCE_PAIR=0,1 ...       # one difficulty pairing only (0 easy, 1 medium, 2 hard)
+BALANCE_TRACE=1 ...        # wave runs: a status line every two minutes
+```
+
+- **balance_difficulty** – duels of two AI masters (112x112, no hero waves, 45 min); the sides swap
+  every other seed. Undecided games count as draws.
+- **balance_talents** – four AI masters (medium), each held to one talent branch, the branches moving
+  round the four starts; placement by survival and strength.
+- **balance_waves** – one AI master alone against the hero waves (96x96, 40 min).
+
+## Findings and changes (2026-11-06)
+
+First runs showed:
+- AI masters stopped growing after their build order (99 room tiles, 24 creatures from minute 10).
+- They mined one vein at a time and only below 1500 gold.
+- They fought hero waves piecemeal and never cast spells.
+- "Hard" attacked even when weaker (boldness 0.9) and was no stronger than "easy".
+
+Changes:
+- AI masters keep building lairs and gardens up to 24 / 50 / 80 beds (easy / medium / hard), and a
+  bigger treasury when the old one is nearly full.
+- They mine several veins (one per three imps) whenever gold is below 1.5 paydays + 1000.
+- Defence: with intruders in the dungeon the rally flag goes on them, the master casts lightning on
+  them and heals his hurt creatures; an attack is called off to defend.
+- Boldness (own army / enemy army needed to attack): easy 1.0, medium 1.2, hard 1.35.
+- Builder talent: imps dig +15% and rooms cost -10% per level (was +10% / -6%).
+
+Results after the changes:
+
+| | before | after |
+|---|---|---|
+| one master vs waves: fallen of 8 (easy/medium/hard) | 2 / 3 / 4 | 2 / 2 / 2 |
+| duels, 16 seeds: easy vs medium | 6 : 6 | 3 : 6 |
+| medium vs hard | 5 : 6 (8 seeds 3 : 2) | 5 : 6 |
+| easy vs hard | 3 : 7 | 3 : 7 |
+| talents, average place (builder / warlord / warlock / merchant) | 3.3 / 1.9 / 3.0 / 1.9 | 3.1 / 2.1 / 2.5 / 2.3 |
+
+Notes:
+- The noise is about ±2 wins at 16 seeds; medium vs medium ended 5 : 7.
+- The AI uses only lightning and heal, so Warlock is still worth more to a human player than the
+  tournament shows.
+- Builder pays off where space, not gold, limits building; AI dungeons are bounded by their radius.
+- One map seed (1333) never brings heroes to the master. It shows as "wave 11, heroes 0" in the
+  wave table and is a map outlier.

docs/ROADMAP.md

@@ -140,8 +140,8 @@ grid), guard and attack markers (shields and swords), savegames with the game st
    or trees with lightning every 6-20 s. Dimmed daylight, rain streaks, fog veils, flashes; a HUD label.
 6. **Named creatures** (done, v202611-00068, names.rs) - every creature gets a name from its kind's list in the
    language files (20 per kind, per language), a humorous epithet from level 5 and a grand one from level 8;
-   names in the hover info, the creature overview and the messages. A creature of level 3+ that falls leaves a
+   names in the hover info, the creature overview and the messages. A creature of level 10 that falls leaves a
-   memorial stone on its master's ground (hover: who lies there; at most 24).
+   memorial stone on its master's ground (hover: who lies there; at most 30 per map).
 7. **Hall of the fallen** (done, v202611-00073) - every named creature of level 3+ that falls is remembered
    with its level, heroes slain and how it fell (slain by a kind, lava, water, snare, lightning): in the game
    (creature overview "Fallen", or a click with the hand on a memorial stone) and over all games on the

src/ai.rs

@@ -16,7 +16,7 @@ const MAX_IMPS: [usize; 3] = [5, 7, 9];
 const FIRST_ATTACK: [f32; 3] = [940.0, 625.0, 430.0]; // no attack before (seconds)
 const BOLDNESS: [f32; 3] = [1.0, 1.2, 1.35]; // own army / enemy army needed to attack (easy is reckless, hard waits)
 const MARK_REACH: i32 = 5; // an AI master marks only this close to its own ground
-const CREATURE_TARGET: [usize; 3] = [30, 50, 80]; // beds an AI master builds up to
+const CREATURE_TARGET: [usize; 3] = [24, 50, 80]; // beds an AI master builds up to
 const MAX_TOWERS: [usize; 3] = [1, 2, 4];
 const START_GOLD: [f32; 3] = [1500.0, 2500.0, 3500.0];
 

src/audio.rs

@@ -1,6 +1,7 @@
 // Audio engine: music (XM players with crossfades) and synthesised sound effects.
 // The browser pulls samples through dc_audio_render() from our JS plugin (www/dc_plugin.js),
-// which starts the AudioContext on the first user interaction.
+// which starts the AudioContext on the first user interaction. Desktop builds play through
+// the system's sound output (module `native` below).
 
 use crate::sfx;
 use crate::tracks::TRACKS;
@@ -244,6 +245,109 @@ pub extern "C" fn dc_audio_render(frames: u32) -> *const f32 {
     })
 }
 
+// ------------------------------------------------------------------ desktop sound output
+
+// The game renders a little ahead into a queue each frame; the sound card's thread takes from it.
+// The engine itself stays on the game thread, like in the browser.
+#[cfg(not(target_arch = "wasm32"))]
+pub mod native {
+    use super::STATE;
+    use cpal::traits::{DeviceTrait, HostTrait, StreamTrait};
+    use std::cell::RefCell;
+    use std::collections::VecDeque;
+    use std::sync::{Arc, Mutex};
+
+    // seconds rendered ahead: covers a slow frame or two
+    const AHEAD: f32 = 0.07;
+
+    struct Out {
+        _stream: cpal::Stream,
+        queue: Arc<Mutex<VecDeque<f32>>>, // interleaved stereo
+        rate: f32,
+    }
+
+    thread_local! {
+        static OUT: RefCell<Option<Out>> = const { RefCell::new(None) };
+    }
+
+    // opens the default output device and starts the engine; without one the game stays silent
+    pub fn start() {
+        match open() {
+            Ok(out) => {
+                super::dc_audio_init(out.rate);
+                OUT.with(|o| *o.borrow_mut() = Some(out));
+            }
+            Err(e) => eprintln!("DungeonCraft: no sound ({})", e),
+        }
+    }
+
+    fn open() -> Result<Out, String> {
+        let dev = cpal::default_host().default_output_device().ok_or("no output device")?;
+        let cfg = dev.default_output_config().map_err(|e| e.to_string())?;
+        let rate = cfg.sample_rate() as f32;
+        let channels = cfg.channels() as usize;
+        let queue = Arc::new(Mutex::new(VecDeque::new()));
+        let sc: cpal::StreamConfig = cfg.config();
+        use cpal::SampleFormat as F;
+        let stream = match cfg.sample_format() {
+            F::F32 => build::<f32>(&dev, &sc, channels, queue.clone()),
+            F::I16 => build::<i16>(&dev, &sc, channels, queue.clone()),
+            F::U16 => build::<u16>(&dev, &sc, channels, queue.clone()),
+            F::I32 => build::<i32>(&dev, &sc, channels, queue.clone()),
+            f => Err(format!("sample format {:?}", f)),
+        }?;
+        stream.play().map_err(|e| e.to_string())?;
+        Ok(Out { _stream: stream, queue, rate })
+    }
+
+    fn build<T: cpal::SizedSample + cpal::FromSample<f32>>(dev: &cpal::Device, sc: &cpal::StreamConfig, channels: usize, queue: Arc<Mutex<VecDeque<f32>>>) -> Result<cpal::Stream, String> {
+        let channels = channels.max(1);
+        dev.build_output_stream(
+            sc.clone(),
+            move |out: &mut [T], _: &cpal::OutputCallbackInfo| {
+                let mut q = queue.lock().unwrap_or_else(|e| e.into_inner());
+                for frame in out.chunks_mut(channels) {
+                    // an empty queue (a stalled frame) plays silence
+                    let (l, r) = if q.len() >= 2 { (q.pop_front().unwrap_or(0.0), q.pop_front().unwrap_or(0.0)) } else { (0.0, 0.0) };
+                    for (c, s) in frame.iter_mut().enumerate() {
+                        let v = match (channels, c) {
+                            (1, _) => (l + r) * 0.5,
+                            (_, 0) => l,
+                            (_, 1) => r,
+                            _ => 0.0,
+                        };
+                        *s = T::from_sample(v);
+                    }
+                }
+            },
+            |e| eprintln!("DungeonCraft: sound output: {}", e),
+            None,
+        )
+        .map_err(|e| e.to_string())
+    }
+
+    // called once per frame: tops the queue up to AHEAD seconds
+    pub fn pump() {
+        OUT.with(|o| {
+            let o = o.borrow();
+            let Some(o) = o.as_ref() else { return };
+            let want = (o.rate * AHEAD) as usize;
+            let have = o.queue.lock().unwrap_or_else(|e| e.into_inner()).len() / 2;
+            if have >= want {
+                return;
+            }
+            STATE.with(|s| {
+                let mut s = s.borrow_mut();
+                let (mv, sv, muted) = (s.music_vol, s.sfx_vol, s.muted);
+                if let Some(e) = s.engine.as_mut() {
+                    e.render(want - have, mv, sv, muted);
+                    o.queue.lock().unwrap_or_else(|e| e.into_inner()).extend(e.buf.iter().copied());
+                }
+            });
+        });
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

src/balance.rs

@@ -89,7 +89,12 @@ fn seeds() -> Vec<u32> {
 fn balance_difficulty() {
     println!("\n== difficulty duels (2 masters, 112x112, no waves, 45 min) ==");
     println!("{:<14} {:>5} {:>5} {:>5} {:>8}", "pair", "A", "B", "draw", "min");
-    for (a, b) in [(0u8, 1u8), (1, 2), (0, 2), (1, 1)] {
+    // BALANCE_PAIR=a,b runs one pairing only
+    let pairs: Vec<(u8, u8)> = match std::env::var("BALANCE_PAIR").ok().and_then(|p| p.split_once(',').map(|(a, b)| (a.parse().ok(), b.parse().ok()))) {
+        Some((Some(a), Some(b))) => vec![(a, b)],
+        _ => vec![(0, 1), (1, 2), (0, 2), (1, 1)],
+    };
+    for (a, b) in pairs {
         let (mut wa, mut wb, mut dr, mut mins) = (0, 0, 0, 0.0);
         for (k, seed) in seeds().into_iter().enumerate() {
             let mut g = arena(seed, 112);
@@ -204,3 +209,41 @@ fn balance_waves() {
         }
     }
 }
+
+// where the heroes of a wave really break in, against the marked entry points
+#[test]
+#[ignore]
+fn balance_entry_points() {
+    use crate::map::*;
+    println!("\n== planned entry vs. where the heroes step onto the master's ground ==");
+    for seed in seeds() {
+        let mut g = Game::new(seed, 96, 96);
+        pilot(&mut g, 1, None);
+        let mut planned: Vec<(i32, i32)> = Vec::new();
+        let mut first_in: Option<(i32, i32)> = None;
+        let mut wave = 0;
+        for _ in 0..((20.0 * 60.0 / STEP) as usize) {
+            g.update(STEP);
+            if g.state != 0 {
+                break;
+            }
+            if !g.planned_entries.is_empty() {
+                planned = g.planned_entries.clone();
+            }
+            if g.wave != wave {
+                wave = g.wave;
+                first_in = None;
+            }
+            if first_in.is_none() {
+                if let Some(e) = g.ents.iter().find(|e| e.alive && e.active_hero() && g.map.get(e.x as i32, e.y as i32).map_or(false, |t| t.owner == Owner::Player)) {
+                    first_in = Some((e.x as i32, e.y as i32));
+                    let d = planned.iter().map(|&(px, py)| (((px - e.x as i32).pow(2) + (py - e.y as i32).pow(2)) as f32).sqrt()).fold(f32::MAX, f32::min);
+                    let wp = g.ents.iter().filter(|e| e.alive && e.active_hero()).filter(|e| e.waypoint.is_some()).count();
+                    let heroes = g.ents.iter().filter(|e| e.alive && e.active_hero()).count();
+                    let job = format!("{:?}", e.job);
+                    println!("seed {} wave {}: planned {:?} first in at {:?} -> {:.1} tiles off; heroes with waypoint {}/{}; its job {}", seed, wave, planned, first_in.unwrap(), d, wp, heroes, job);
+                }
+            }
+        }
+    }
+}

src/game.rs

@@ -4903,6 +4903,13 @@ impl Game {
             if (e.x - wx as f32 - 0.5).abs() < 2.5 && (e.y - wy as f32 - 0.5).abs() < 2.5 {
                 e.waypoint = None; // broke into the realm: now for the core
                 e.path.clear();
+            } else if let Some(&next) = e.path.first() {
+                // the realm grew into the way (imps claim fast): round it again
+                let realm = self.map.t[idx(wx, wy)].owner;
+                if self.map.t[next].owner == realm && next != idx(wx, wy) && self.map.t[e.tile()].owner != realm {
+                    e.path.clear();
+                    e.repath = 0.0;
+                }
             }
         }
         if e.path.is_empty() && e.repath <= 0.0 {
@@ -4910,7 +4917,8 @@ impl Game {
             let path = match e.waypoint {
                 Some((wx, wy)) => {
                     let goal = idx(wx, wy);
-                    let p = self.map.search(cur, self.map.hero_cost(), |i| i == goal, true);
+                    // round the realm from outside: in through the marked entry, not before
+                    let p = self.entry_path(cur, goal).or_else(|| self.map.search(cur, self.map.hero_cost(), |i| i == goal, true));
                     if p.is_none() {
                         e.waypoint = None;
                     }
@@ -4975,14 +4983,28 @@ impl Game {
             scored.push(((x, y), score));
         }
         scored.sort_by(|a, b| b.1.partial_cmp(&a.1).unwrap_or(std::cmp::Ordering::Equal));
-        let first = scored[0].0;
+        // only places the heroes can reach from the gate without crossing the realm first
+        let gate = idx(gx, gy);
+        let mut tried = 0;
+        let mut ok = |g: &Game, p: (i32, i32)| {
+            tried += 1;
+            tried > 12 || g.entry_path(gate, idx(p.0, p.1)).is_some()
+        };
+        let Some(first) = scored.iter().map(|s| s.0).find(|&p| ok(self, p)) else { return };
         self.planned_entries.push(first);
         // second entry point at least 10 tiles away (used by waves of 6+ heroes)
-        if let Some(&(second, _)) = scored.iter().find(|((x, y), _)| (x - first.0).pow(2) + (y - first.1).pow(2) >= 100) {
+        if let Some(second) = scored.iter().map(|s| s.0).filter(|&(x, y)| (x - first.0).pow(2) + (y - first.1).pow(2) >= 100).find(|&p| ok(self, p)) {
             self.planned_entries.push(second);
         }
     }
 
+    // a hero's way to an entry tile that stays off the realm (the master's ground) until the entry
+    pub(crate) fn entry_path(&self, from: usize, goal: usize) -> Option<Vec<usize>> {
+        let owner = self.map.t[goal].owner;
+        let cost = self.map.hero_cost();
+        self.map.search(from, |i| if i != goal && i != from && self.map.t[i].owner == owner { None } else { cost(i) }, |i| i == goal, true)
+    }
+
     // compass direction of a tile as seen from the core (language key)
     pub fn direction_key(&self, (x, y): (i32, i32)) -> &'static str {
         let (cx, cy) = (self.map.core.0 + 1, self.map.core.1 + 1);

src/main.rs

@@ -1,4 +1,6 @@
 // DungeonCraft – dungeon building & defence in the browser (Rust + macroquad, WASM).
+// Windows release builds are a window program: no console opens beside the game
+#![cfg_attr(all(windows, not(debug_assertions)), windows_subsystem = "windows")]
 
 mod achievements;
 mod ai;
@@ -929,8 +931,12 @@ async fn main() {
     let mut voice = voice::Voice::new();
     let mut was_briefing = false;
     let mut cache_t = 0.0f32;
+    #[cfg(not(target_arch = "wasm32"))]
+    audio::native::start();
 
     loop {
+        #[cfg(not(target_arch = "wasm32"))]
+        audio::native::pump();
         let raw_dt = get_frame_time();
         let dt = raw_dt.min(0.1);
         let now = get_time();
@@ -1497,7 +1503,7 @@ async fn main() {
                     MenuAction::Save | MenuAction::FileSave => {
                         let name = save_file_name();
                         platform::download(&name, app.autosave_json().as_bytes());
-                        app.set_status(i18n::trf("save.saved", &[name]), now);
+                        app.set_status(i18n::trf("save.saved", &[platform::saved_as(&name)]), now);
                     }
                     MenuAction::CloudSave(id, name) => {
                         if cloud.save(id.as_deref(), &name, &app.autosave_json()) {
@@ -1544,7 +1550,7 @@ async fn main() {
                     MenuAction::CampaignSave => {
                         let name = menu.campaign_doc.file_name();
                         platform::download(&name, menu.campaign_doc.save().as_bytes());
-                        app.set_status(i18n::trf("campaign.saved", &[name]), now);
+                        app.set_status(i18n::trf("campaign.saved", &[platform::saved_as(&name)]), now);
                     }
                     MenuAction::CampaignEditName => {
                         if let Some(value) = prompt_line(&i18n::tr("campaign.prompt_name"), &menu.campaign_doc.name, 60) {
@@ -2349,7 +2355,11 @@ app.pending_briefing = briefing_of(&ed.doc, i);
             ui.show_help = false;
             r3d.invalidate();
         }
-        editor::EdAction::SaveFile => platform::download(&ed.doc.file_name(), ed.doc.save().as_bytes()),
+        editor::EdAction::SaveFile => {
+            let name = ed.doc.file_name();
+            platform::download(&name, ed.doc.save().as_bytes());
+            ed.set_status(i18n::trf("campaign.saved", &[platform::saved_as(&name)]));
+        }
         editor::EdAction::OpenFile => platform::open_file(),
         editor::EdAction::ServerSave => {
             if !cloud.available() {

src/names.rs

@@ -8,9 +8,11 @@ use crate::i18n::{tr, trf};
 use crate::map::*;
 use serde::{Deserialize, Serialize};
 
-// the fallen get a stone from this level on; at most MAX_MEMORIALS stones (the oldest go)
+// the fallen are remembered in the hall from HALL_LEVEL on; only the greatest (MEMORIAL_LEVEL)
-pub const MEMORIAL_LEVEL: u32 = 3;
+// get a stone on the map, at most MAX_MEMORIALS of them (the oldest go)
-pub const MAX_MEMORIALS: usize = 24;
+pub const HALL_LEVEL: u32 = 3;
+pub const MEMORIAL_LEVEL: u32 = 10;
+pub const MAX_MEMORIALS: usize = 30;
 
 // what killed a creature besides another unit (Ent::bane)
 pub const BANE_SNARE: u8 = 250;
@@ -134,13 +136,17 @@ impl Game {
     // a named creature of some standing fell: a stone with its name on its master's ground, as
     // near to where it fell as there is plain floor
     pub(crate) fn raise_memorial(&mut self, e: &Ent) -> bool {
-        if e.hero || e.name == 0 || e.level < MEMORIAL_LEVEL || !Owner::MASTER_SIDES.contains(&e.side) {
+        if e.hero || e.name == 0 || e.level < HALL_LEVEL || !Owner::MASTER_SIDES.contains(&e.side) {
             return false;
         }
         // the hall of the fallen keeps the local master's (also without room for a stone)
         if e.side == self.local_side {
             self.hall.push(Fallen { kind: e.kind, name: e.name, level: e.level, kills: e.kills, bane: e.bane, time: self.time, when: 0 });
         }
+        // a stone only for the greatest
+        if e.level < MEMORIAL_LEVEL {
+            return false; // the usual message tells of it
+        }
         let owner = Owner::of_side(e.side);
         let (x, y) = (e.x as i32, e.y as i32);
         let taken: Vec<usize> = self.memorials.iter().map(|m| m.tile).collect();
@@ -261,12 +267,18 @@ mod tests {
                 t.owner = Owner::Player;
             }
         }
-        let id = g.spawn(EK::Ogre, false, cx as f32 + 1.5, cy as f32 + 5.5, 4);
+        let id = g.spawn(EK::Ogre, false, cx as f32 + 1.5, cy as f32 + 5.5, 10);
         let j = g.ents.iter().position(|e| e.id == id).unwrap();
         g.kill(j);
         assert_eq!(g.memorials.len(), 1);
-        let m = &g.memorials[0];
+        let m = g.memorials[0].clone();
-        assert_eq!((m.kind, m.level), (EK::Ogre, 4));
+        assert_eq!((m.kind, m.level), (EK::Ogre, 10));
+        // level 4: in the hall, but no stone on the map
+        let o4 = g.spawn(EK::Ogre, false, cx as f32 + 3.5, cy as f32 + 5.5, 4);
+        let j = g.ents.iter().position(|e| e.id == o4).unwrap();
+        g.kill(j);
+        assert_eq!(g.memorials.len(), 1);
+        assert_eq!(g.hall.len(), 2);
         assert!(g.memorial_at(m.tile).is_some());
         // a level 1 kobold is not remembered
         let k = g.spawn(EK::Kobold, false, cx as f32 + 2.5, cy as f32 + 5.5, 1);

src/platform.rs

@@ -1,7 +1,7 @@
 // Browser integration via our own miniquad JS plugin (www/dc_plugin.js):
 // persistent key/value storage (localStorage), a cache that is written to storage when the
 // page is hidden or closed, file download, file upload and HTTP requests.
-// Native builds use simple fallbacks.
+// Native builds keep the storage as files in the data directory (see imp below).
 
 // Result of an HTTP request: status 0 means the service could not be reached
 pub struct HttpResult {
@@ -113,6 +113,11 @@ mod imp {
         unsafe { dc_cache_set(key.as_ptr(), key.len() as u32, val.as_ptr(), val.len() as u32) }
     }
 
+    // where download() put a file, for the status line: the browser's download folder
+    pub fn saved_as(name: &str) -> String {
+        name.to_string()
+    }
+
     pub fn download(name: &str, data: &[u8]) {
         unsafe { dc_download(name.as_ptr(), name.len() as u32, data.as_ptr(), data.len() as u32) }
     }
@@ -188,14 +193,84 @@ mod imp {
 
 #[cfg(not(target_arch = "wasm32"))]
 mod imp {
-    use std::cell::RefCell;
+    // Desktop builds: the storage keys are files in the data directory, savegames and
+    // campaigns are written to its "saves" folder, the system file dialog opens files.
     use std::collections::HashMap;
-    thread_local! {
+    use std::path::PathBuf;
-        static STORE: RefCell<HashMap<String, String>> = RefCell::new(HashMap::new());
+    use std::sync::Mutex;
+
+    static STORE: Mutex<Option<HashMap<String, String>>> = Mutex::new(None);
+    static PICKED: Mutex<Option<Vec<u8>>> = Mutex::new(None);
+    static PICKING: std::sync::atomic::AtomicBool = std::sync::atomic::AtomicBool::new(false);
+
+    // DUNGEONCRAFT_DATA, else the usual per-user application data folder
+    pub fn data_dir() -> PathBuf {
+        let env = |k: &str| std::env::var_os(k).filter(|v| !v.is_empty()).map(PathBuf::from);
+        if let Some(d) = env("DUNGEONCRAFT_DATA") {
+            return d;
+        }
+        if cfg!(target_os = "windows") {
+            if let Some(d) = env("APPDATA") {
+                return d.join("DungeonCraft");
+            }
+        } else if cfg!(target_os = "macos") {
+            if let Some(h) = env("HOME") {
+                return h.join("Library/Application Support/DungeonCraft");
+            }
+        } else if let Some(d) = env("XDG_DATA_HOME").or_else(|| env("HOME").map(|h| h.join(".local/share"))) {
+            return d.join("dungeoncraft");
+        }
+        PathBuf::from("dungeoncraft-data")
     }
+
+    pub fn saves_dir() -> PathBuf {
+        data_dir().join("saves")
+    }
+
+    // a storage key as a file name: only harmless characters
+    pub(super) fn key_file(key: &str) -> String {
+        let name: String = key.chars().map(|c| if c.is_ascii_alphanumeric() || matches!(c, '.' | '-' | '_') { c } else { '_' }).collect();
+        if name.is_empty() || name.starts_with('.') {
+            format!("_{}", name)
+        } else {
+            name
+        }
+    }
+
+    // writes through a temporary file, so a crash never leaves half a file
+    fn write_file(path: &std::path::Path, data: &[u8]) -> std::io::Result<()> {
+        if let Some(dir) = path.parent() {
+            std::fs::create_dir_all(dir)?;
+        }
+        let tmp = path.with_extension("tmp");
+        std::fs::write(&tmp, data)?;
+        std::fs::rename(&tmp, path)
+    }
+
     pub fn storage_get(key: &str) -> Option<String> {
-        STORE.with(|s| s.borrow().get(key).cloned())
+        let mut store = STORE.lock().unwrap_or_else(|e| e.into_inner());
+        let store = store.get_or_insert_with(HashMap::new);
+        if let Some(v) = store.get(key) {
+            return Some(v.clone());
+        }
+        let v = std::fs::read_to_string(data_dir().join("store").join(key_file(key))).ok()?;
+        store.insert(key.to_string(), v.clone());
+        Some(v)
     }
+
+    pub fn storage_set(key: &str, val: &str) {
+        STORE.lock().unwrap_or_else(|e| e.into_inner()).get_or_insert_with(HashMap::new).insert(key.to_string(), val.to_string());
+        let path = data_dir().join("store").join(key_file(key));
+        if let Err(e) = write_file(&path, val.as_bytes()) {
+            eprintln!("DungeonCraft: cannot write {}: {}", path.display(), e);
+        }
+    }
+
+    // there is no "page left" moment on the desktop: write at once
+    pub fn cache_on_leave(key: &str, val: &str) {
+        storage_set(key, val);
+    }
+
     pub fn prompt(_title: &str, _default: &str) -> Option<String> {
         None
     }
@@ -208,19 +283,47 @@ mod imp {
     pub fn fetch_download_state() -> i32 {
         0
     }
-    pub fn storage_set(key: &str, val: &str) {
+
-        STORE.with(|s| s.borrow_mut().insert(key.to_string(), val.to_string()));
+    // a "download" lands in the saves folder
-    }
-    pub fn cache_on_leave(key: &str, val: &str) {
-        storage_set(key, val);
-    }
     pub fn download(name: &str, data: &[u8]) {
-        let _ = std::fs::write(name, data);
+        let path = saves_dir().join(key_file(name));
+        if let Err(e) = write_file(&path, data) {
+            eprintln!("DungeonCraft: cannot write {}: {}", path.display(), e);
+        }
     }
-    pub fn open_file() {}
+
+    // where download() put a file, for the status line
+    pub fn saved_as(name: &str) -> String {
+        saves_dir().join(key_file(name)).display().to_string()
+    }
+
+    fn pick() {
+        let dir = saves_dir();
+        let _ = std::fs::create_dir_all(&dir);
+        let file = rfd::FileDialog::new().set_directory(&dir).pick_file();
+        if let Some(bytes) = file.and_then(|f| std::fs::read(f).ok()) {
+            *PICKED.lock().unwrap_or_else(|e| e.into_inner()) = Some(bytes);
+        }
+        PICKING.store(false, std::sync::atomic::Ordering::SeqCst);
+    }
+
+    // opens the system file dialog (one at a time); poll with take_file()
+    pub fn open_file() {
+        if PICKING.swap(true, std::sync::atomic::Ordering::SeqCst) {
+            return;
+        }
+        // macOS dialogs must run on the main thread; elsewhere the game keeps running
+        if cfg!(target_os = "macos") {
+            pick();
+        } else if std::thread::Builder::new().name("file dialog".into()).spawn(pick).is_err() {
+            PICKING.store(false, std::sync::atomic::Ordering::SeqCst);
+        }
+    }
+
     pub fn take_file() -> Option<Vec<u8>> {
-        None
+        PICKED.lock().unwrap_or_else(|e| e.into_inner()).take()
     }
+
     // no savegame service in native builds: every request fails like an unreachable server
     pub fn http(_method: &str, _url: &str, _body: &[u8]) -> u32 {
         0
@@ -270,3 +373,14 @@ pub use imp::*;
 pub extern "C" fn dungeoncraft_crate_version() -> u32 {
     1
 }
+
+#[cfg(all(test, not(target_arch = "wasm32")))]
+mod tests {
+    #[test]
+    fn storage_keys_become_harmless_file_names() {
+        assert_eq!(super::imp::key_file("dc.settings"), "dc.settings");
+        assert_eq!(super::imp::key_file("../etc/passwd"), "_.._etc_passwd");
+        assert_eq!(super::imp::key_file("a b/c"), "a_b_c");
+        assert_eq!(super::imp::key_file(""), "_");
+    }
+}

src/render3d.rs

@@ -3377,12 +3377,21 @@ fn draw_entry_warnings(g: &Game, t: f32, n: usize) {
     let line = [255, 90, 60, (120.0 + 120.0 * p) as u8];
     let mut mb = MB::new();
     for &(ex, ey) in &g.planned_entries {
+        let realm = g.map.get(ex, ey).map_or(Owner::Player, |t| t.owner);
+        // the entry tile itself: a pulsing red plate (also where an open corridor leads in)
+        let c = vec3(ex as f32 + 0.5, 0.03, ey as f32 + 0.5);
+        mb.quad(
+            [c + vec3(-0.5, 0.0, -0.5), c + vec3(0.5, 0.0, -0.5), c + vec3(0.5, 0.0, 0.5), c + vec3(-0.5, 0.0, 0.5)],
+            [Vec2::ZERO; 4],
+            [col(vec3(1.0, 0.16, 0.12) * (0.6 + 0.6 * p), 0.45 + 0.35 * p); 4],
+            [Vec3::Y; 4],
+        );
         for dy in -2..=2 {
             for dx in -2..=2 {
                 let (x, y) = (ex + dx, ey + dy);
                 let Some(tile) = g.map.get(x, y) else { continue };
                 // walls of the realm's border near the entry point (not rock)
-                let border = DIR4.iter().any(|&(ax, ay)| g.map.get(x + ax, y + ay).map_or(false, |o| o.owner == Owner::Player && !o.solid()));
+                let border = DIR4.iter().any(|&(ax, ay)| g.map.get(x + ax, y + ay).map_or(false, |o| o.owner == realm && !o.solid()));
                 if tile.diggable() && border && dx.abs() + dy.abs() <= 3 && mb.v.len() < 30000 {
                     block_shell(&mut mb, &g.map, x, y, n, fill, line, 1.0, 0.04);
                 }

tools/build_desktop.py

@@ -0,0 +1,252 @@
+#!/usr/bin/env python3
+"""Build the desktop versions of DungeonCraft into dist/.
+
+    python3 tools/build_desktop.py                  # everything this machine can build
+    python3 tools/build_desktop.py linux windows    # only these
+
+- linux:   dist/DungeonCraft-<version>-x86_64.AppImage
+           built with cargo-zigbuild against glibc 2.28, so it runs on distributions from about 2019 on;
+           needs on the build machine: zig, cargo-zigbuild, the ALSA headers (alsa-lib / libasound2-dev);
+           appimagetool is downloaded once into ~/.cache/dungeoncraft/
+- windows: dist/DungeonCraft-<version>-windows-x64.exe  (one file, Windows 10 and newer)
+           cross-compiled with cargo-zigbuild for x86_64-pc-windows-gnu
+- macos:   dist/DungeonCraft-<version>-macos.zip  (DungeonCraft.app, Apple silicon + Intel)
+           only on a Mac (Apple's SDK is needed); the app is signed ad hoc, not notarised
+
+Everything the game needs (graphics, music, languages) is inside the program; nothing else is packed.
+The tools: `cargo install --locked cargo-zigbuild`, zig from the package manager or `mise install zig@0.15`
+(found on PATH, in $CARGO_ZIGBUILD_ZIG_PATH or in mise's install folder), and the Rust targets
+(`rustup target add ...`, the script tells which).
+"""
+import os
+import pathlib
+import platform
+import shutil
+import stat
+import subprocess
+import sys
+import urllib.request
+
+ROOT = pathlib.Path(__file__).resolve().parent.parent
+DIST = ROOT / "dist"
+CACHE = pathlib.Path(os.environ.get("XDG_CACHE_HOME") or pathlib.Path.home() / ".cache") / "dungeoncraft"
+ICON = ROOT / "www" / "icons" / "icon-512.png"
+GLIBC = "2.28"
+APPIMAGETOOL_URL = "https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-x86_64.AppImage"
+
+DESKTOP_ENTRY = """[Desktop Entry]
+Type=Application
+Name=DungeonCraft
+Comment=Dig. Build. Defend. Conquer.
+Exec=dungeoncraft
+Icon=dungeoncraft
+Categories=Game;StrategyGame;
+Terminal=false
+"""
+
+INFO_PLIST = """<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleName</key><string>DungeonCraft</string>
+    <key>CFBundleDisplayName</key><string>DungeonCraft</string>
+    <key>CFBundleIdentifier</key><string>org.familie-zink.dungeoncraft</string>
+    <key>CFBundleExecutable</key><string>DungeonCraft</string>
+    <key>CFBundleIconFile</key><string>DungeonCraft</string>
+    <key>CFBundlePackageType</key><string>APPL</string>
+    <key>CFBundleShortVersionString</key><string>{short}</string>
+    <key>CFBundleVersion</key><string>{version}</string>
+    <key>LSMinimumSystemVersion</key><string>11.0</string>
+    <key>LSApplicationCategoryType</key><string>public.app-category.strategy-games</string>
+    <key>NSHighResolutionCapable</key><true/>
+</dict>
+</plist>
+"""
+
+
+class BuildError(Exception):
+    pass
+
+
+def log(msg):
+    print(f"==> {msg}", flush=True)
+
+
+def run(cmd, env=None, cwd=ROOT):
+    print("   $", " ".join(str(c) for c in cmd), flush=True)
+    r = subprocess.run([str(c) for c in cmd], cwd=cwd, env=env)
+    if r.returncode != 0:
+        raise BuildError(f"{pathlib.Path(str(cmd[0])).name} failed (exit {r.returncode})")
+
+
+def version():
+    return (ROOT / "VERSION").read_text(encoding="utf-8").strip()
+
+
+def cargo():
+    c = shutil.which("cargo") or str(pathlib.Path.home() / ".cargo" / "bin" / "cargo")
+    if not pathlib.Path(c).exists():
+        raise BuildError("cargo not found: install Rust with rustup")
+    return c
+
+
+def tool_env():
+    env = dict(os.environ)
+    env["PATH"] = str(pathlib.Path(cargo()).parent) + os.pathsep + env.get("PATH", "")
+    return env
+
+
+def need_target(triple):
+    rustup = shutil.which("rustup", path=tool_env()["PATH"])
+    if not rustup:
+        return
+    have = subprocess.run([rustup, "target", "list", "--installed"], capture_output=True, text=True).stdout.split()
+    if triple not in have:
+        raise BuildError(f"Rust target missing: rustup target add {triple}")
+
+
+def zig_env():
+    env = tool_env()
+    if not shutil.which("cargo-zigbuild", path=env["PATH"]):
+        raise BuildError("cargo-zigbuild missing: cargo install --locked cargo-zigbuild")
+    installs = pathlib.Path.home() / ".local" / "share" / "mise" / "installs" / "zig"
+    from_mise = sorted(installs.glob("*/zig"), key=lambda p: [int(x) if x.isdigit() else 0 for x in p.parent.name.split(".")])
+    candidates = [env.get("CARGO_ZIGBUILD_ZIG_PATH"), shutil.which("zig", path=env["PATH"])] + [str(p) for p in reversed(from_mise)]
+
+    def works(z):  # a mise shim without an active version is on PATH but does not run
+        try:
+            return subprocess.run([z, "version"], capture_output=True, timeout=30).returncode == 0
+        except OSError:
+            return False
+
+    zig = next((z for z in candidates if z and works(z)), None)
+    if not zig:
+        raise BuildError("zig not found: install it (package manager, or `mise install zig@0.15`)")
+    env["CARGO_ZIGBUILD_ZIG_PATH"] = zig
+    return env
+
+
+# ------------------------------------------------------------------ Linux: AppImage
+
+def appimagetool():
+    tool = CACHE / "appimagetool-x86_64.AppImage"
+    if not tool.exists():
+        log(f"downloading appimagetool to {tool}")
+        CACHE.mkdir(parents=True, exist_ok=True)
+        tmp = tool.with_suffix(".part")
+        with urllib.request.urlopen(APPIMAGETOOL_URL, timeout=120) as r, open(tmp, "wb") as f:
+            shutil.copyfileobj(r, f)
+        tmp.rename(tool)
+    tool.chmod(tool.stat().st_mode | stat.S_IXUSR)
+    return tool
+
+
+def build_linux(ver):
+    if platform.system() != "Linux" or platform.machine() not in ("x86_64", "AMD64"):
+        raise BuildError("the AppImage is built on x86_64 Linux")
+    need_target("x86_64-unknown-linux-gnu")
+    env = zig_env()
+    # libasound is only linked by name: its own glibc references are the user's system's business
+    env["RUSTFLAGS"] = (env.get("RUSTFLAGS", "") + " -C link-arg=-Wl,--allow-shlib-undefined").strip()
+    log(f"Linux build (glibc {GLIBC})")
+    run([cargo(), "zigbuild", "--release", "--target", f"x86_64-unknown-linux-gnu.{GLIBC}"], env=env)
+    binary = ROOT / "target" / "x86_64-unknown-linux-gnu" / "release" / "dungeoncraft"
+
+    appdir = ROOT / "target" / "AppDir"
+    shutil.rmtree(appdir, ignore_errors=True)
+    (appdir / "usr" / "bin").mkdir(parents=True)
+    shutil.copy2(binary, appdir / "usr" / "bin" / "dungeoncraft")
+    (appdir / "dungeoncraft.desktop").write_text(DESKTOP_ENTRY, encoding="utf-8")
+    shutil.copy2(ICON, appdir / "dungeoncraft.png")
+    os.symlink("dungeoncraft.png", appdir / ".DirIcon")
+    os.symlink("usr/bin/dungeoncraft", appdir / "AppRun")
+
+    out = DIST / f"DungeonCraft-{ver}-x86_64.AppImage"
+    out.unlink(missing_ok=True)
+    tenv = dict(os.environ, ARCH="x86_64", APPIMAGE_EXTRACT_AND_RUN="1")  # no FUSE needed for the tool
+    log("packing the AppImage")
+    run([appimagetool(), "--no-appstream", appdir, out], env=tenv)
+    return out
+
+
+# ------------------------------------------------------------------ Windows: one exe
+
+def build_windows(ver):
+    need_target("x86_64-pc-windows-gnu")
+    env = zig_env()
+    log("Windows build")
+    run([cargo(), "zigbuild", "--release", "--target", "x86_64-pc-windows-gnu"], env=env)
+    out = DIST / f"DungeonCraft-{ver}-windows-x64.exe"
+    shutil.copy2(ROOT / "target" / "x86_64-pc-windows-gnu" / "release" / "dungeoncraft.exe", out)
+    return out
+
+
+# ------------------------------------------------------------------ macOS: universal .app in a zip
+
+def build_macos(ver):
+    if platform.system() != "Darwin":
+        raise BuildError("the macOS app can only be built on a Mac (Apple's SDK is needed)")
+    env = tool_env()
+    arches = ["aarch64-apple-darwin", "x86_64-apple-darwin"]
+    for t in arches:
+        need_target(t)
+    env["MACOSX_DEPLOYMENT_TARGET"] = "11.0"
+    for t in arches:
+        log(f"macOS build {t}")
+        run([cargo(), "build", "--release", "--target", t], env=env)
+
+    app = ROOT / "target" / "DungeonCraft.app"
+    shutil.rmtree(app, ignore_errors=True)
+    (app / "Contents" / "MacOS").mkdir(parents=True)
+    (app / "Contents" / "Resources").mkdir(parents=True)
+    run(["lipo", "-create", "-output", app / "Contents" / "MacOS" / "DungeonCraft"] + [ROOT / "target" / t / "release" / "dungeoncraft" for t in arches])
+    short = ver.lstrip("v").replace("-", ".")
+    (app / "Contents" / "Info.plist").write_text(INFO_PLIST.format(short=short, version=ver), encoding="utf-8")
+
+    iconset = ROOT / "target" / "DungeonCraft.iconset"
+    shutil.rmtree(iconset, ignore_errors=True)
+    iconset.mkdir()
+    for size in (16, 32, 128, 256, 512):
+        run(["sips", "-z", size, size, ICON, "--out", iconset / f"icon_{size}x{size}.png"])
+        if size <= 256:
+            run(["sips", "-z", size * 2, size * 2, ICON, "--out", iconset / f"icon_{size}x{size}@2x.png"])
+    run(["iconutil", "-c", "icns", iconset, "-o", app / "Contents" / "Resources" / "DungeonCraft.icns"])
+
+    run(["codesign", "--force", "--deep", "--sign", "-", app])
+    out = DIST / f"DungeonCraft-{ver}-macos.zip"
+    out.unlink(missing_ok=True)
+    run(["ditto", "-c", "-k", "--keepParent", app, out])
+    return out
+
+
+BUILDERS = {"linux": build_linux, "windows": build_windows, "macos": build_macos}
+
+
+def main(argv):
+    if any(a in ("-h", "--help") for a in argv):
+        print(__doc__)
+        return 0
+    wanted = argv or (["macos"] if platform.system() == "Darwin" else ["linux", "windows"])
+    unknown = [w for w in wanted if w not in BUILDERS]
+    if unknown:
+        print(f"unknown target(s): {', '.join(unknown)} (linux, windows, macos)", file=sys.stderr)
+        return 2
+    DIST.mkdir(exist_ok=True)
+    ver = version()
+    done, failed = [], []
+    for w in wanted:
+        try:
+            done.append(BUILDERS[w](ver))
+        except BuildError as e:
+            failed.append(f"{w}: {e}")
+            print(f"!! {w}: {e}", file=sys.stderr)
+    print()
+    for p in done:
+        print(f"built  {p.relative_to(ROOT)}  ({p.stat().st_size / 1e6:.1f} MB)")
+    for f in failed:
+        print(f"failed {f}")
+    return 1 if failed else 0
+
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))