Keep scorch marks visible under smoke

src/render3d.rs

@@ -2457,6 +2457,11 @@ fn draw_traps_glow(g: &Game, t: f32) {
 // particles that glow (embers, sparks, smoke, flashes, shock waves)
 fn draw_parts_glow(g: &Game) {
     use crate::particles::*;
+    // scorch marks on the floor: drawn before smoke/flash so they are not depth-occluded
+    for p in g.stuck.iter().filter(|p| p.kind == SCORCH) {
+        let fade = 1.0 - (p.t / p.max).clamp(0.0, 1.0);
+        disc(vec3(p.x, floor_y(g, p.x, p.y) + 0.02, p.y), p.size, Color::new(0.025, 0.018, 0.018, 0.70 * fade), 14);
+    }
     for p in &g.parts {
         let c = rgba(p.col);
         let life = (p.t / p.max).clamp(0.0, 1.0);
@@ -2466,7 +2471,7 @@ fn draw_parts_glow(g: &Game) {
                 let s = p.size * (1.0 - life * 0.6);
                 draw_cube(at, Vec3::splat(s), None, Color::new(c.r, c.g, c.b, 1.0 - life * life));
             }
-            SMOKE => draw_sphere(at, p.size, None, Color::new(c.r, c.g, c.b, 0.35 * (1.0 - life))),
+            SMOKE => draw_sphere(at, p.size, None, Color::new(c.r, c.g, c.b, 0.18 * (1.0 - life))),
             FLASH => {
                 let r = p.size * (0.3 + life * 0.9);
                 draw_sphere(at, r * 0.6, None, Color::new(1.0, 0.95, 0.75, 1.0 - life));
@@ -2476,11 +2481,6 @@ fn draw_parts_glow(g: &Game) {
             _ => {}
         }
     }
-    // scorch marks on the floor
-    for p in g.stuck.iter().filter(|p| p.kind == SCORCH) {
-        let fade = 1.0 - (p.t / p.max).clamp(0.0, 1.0);
-        disc(vec3(p.x, floor_y(g, p.x, p.y) + 0.015, p.y), p.size, Color::new(0.03, 0.02, 0.02, 0.55 * fade), 14);
-    }
 }
 
 // solid particles: debris, coins and the arrows stuck in walls and floors