Versus teams, gold for allies, fallen hearts as spectators, multi-mission editor co-op

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

src/campaign.rs

@@ -734,6 +734,20 @@ pub fn editor_fort(g: &mut Game, x: i32, y: i32, level: u32, shard: bool) {
     g.recount();
 }
 
+// an island in a lake (water or lava) at a map fraction, with a mana spring and/or treasure
+pub fn editor_island(g: &mut Game, at: (f32, f32), lava: bool, spring: bool, treasure: i32, seed: u32) {
+    let (w, h) = (g.map.w, g.map.h);
+    place_island(g, &island(at, lava, spring, treasure), w, h, seed);
+    g.recount();
+}
+
+// a sealed cave at a map fraction, with a chained creature and/or treasure
+pub fn editor_cave(g: &mut Game, at: (f32, f32), chained: Option<(EK, u32)>, treasure: i32) {
+    let (w, h) = (g.map.w, g.map.h);
+    place_cave(g, &cave(at, chained, treasure), w, h);
+    g.recount();
+}
+
 // a painted map: the game state saved by the map editor
 pub fn load_fixed_map(json: &str) -> Option<Game> {
     let mut g: Game = serde_json::from_str(json).ok()?;
@@ -774,6 +788,45 @@ pub fn carry_from(g: &Game) -> Carry {
     Carry { creatures: c.iter().take(CARRY_CREATURES).map(|e| (e.kind, e.level, e.xp)).collect(), gold: (g.gold * CARRY_GOLD).floor(), rune_free: g.rune_free, rune_final: g.rune_final + g.rune_next }
 }
 
+// a co-op match of an editor campaign: what every master takes into the next mission - his
+// strongest creatures and a fifth of his gold. It comes from the shared world, so it is the same on
+// every client (the host sends it along with the next mission anyway).
+pub fn coop_carry_from(g: &Game) -> Vec<(u8, Carry)> {
+    let power = |e: &Ent| e.max_hp * e.atk() / st(e.kind).interval;
+    g.master_sides()
+        .into_iter()
+        .map(|side| {
+            let mut c: Vec<&Ent> = g.ents.iter().filter(|e| e.alive && !e.hero && e.side == side && e.kind != EK::Worker && !e.chained && e.captive == 0).collect();
+            c.sort_by(|a, b| power(b).partial_cmp(&power(a)).unwrap_or(std::cmp::Ordering::Equal).then(a.id.cmp(&b.id)));
+            let creatures = c.iter().take(CARRY_CREATURES).map(|e| (e.kind, e.level, e.xp)).collect();
+            (side, Carry { creatures, gold: (g.gold_of(side).max(0.0) * CARRY_GOLD).floor(), rune_free: 0, rune_final: 0 })
+        })
+        .collect()
+}
+
+// the carry of every master put into a new co-op mission: gold for him, his creatures around his heart
+pub fn apply_coop_carry(g: &mut Game, carry: &[(u8, Carry)]) {
+    let local = g.local_side;
+    for (side, c) in carry {
+        if !g.is_master(*side) {
+            continue; // the seat is played by the AI now
+        }
+        g.switch_to(*side);
+        g.gold += c.gold.max(0.0);
+        let (cx, cy) = g.map.core;
+        for (k, &(kind, level, xp)) in c.creatures.iter().take(CARRY_CREATURES).enumerate() {
+            let a = k as f32 * 1.1;
+            let (x, y) = (cx as f32 + 1.5 + a.cos() * 3.0, cy as f32 + 1.5 + a.sin() * 3.0);
+            let id = g.spawn(kind, false, x, y, level.clamp(1, 10));
+            if let Some(e) = g.ents.iter_mut().find(|e| e.id == id) {
+                e.xp = xp;
+                e.happy = 1.0;
+            }
+        }
+    }
+    g.switch_to(local);
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;