feat: Add mutant death and god mode face animations, update HUD rendering and player damage handling

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

packages/wolf_3d_dart/lib/src/rendering/renderer_backend.dart

@@ -228,6 +228,20 @@ abstract class RendererBackend<T>
       faceIndex =
           engine.data.registry.hud.resolve(HudKey.faceGotGatling)?.vgaIndex ??
           -1;
+    } else if (engine.player.isMutantDeathFaceActive) {
+      faceIndex =
+          engine.data.registry.hud.resolve(HudKey.faceMutantDeath)?.vgaIndex ??
+          -1;
+      if (faceIndex < 0) {
+        faceIndex =
+            engine.data.registry.hud.resolve(HudKey.faceDead)?.vgaIndex ?? -1;
+      }
+    } else if (engine.player.isGodModeFaceEnabled) {
+      final int baseGodFace =
+          engine.data.registry.hud.resolve(HudKey.faceGodMode)?.vgaIndex ?? -1;
+      if (baseGodFace >= 0) {
+        faceIndex = baseGodFace + engine.player.hudFaceFrame;
+      }
     } else {
       final HudKey faceKey = engine.data.registry.hud.faceKeyForHealth(
         engine.player.health,
@@ -241,6 +255,19 @@ abstract class RendererBackend<T>
       }
     }
 
+    if (faceIndex < 0) {
+      final HudKey fallbackKey = engine.data.registry.hud.faceKeyForHealth(
+        engine.player.health,
+      );
+      final int fallbackBase =
+          engine.data.registry.hud.resolve(fallbackKey)?.vgaIndex ?? -1;
+      if (fallbackBase >= 0) {
+        faceIndex = fallbackKey == HudKey.faceDead
+            ? fallbackBase
+            : fallbackBase + engine.player.hudFaceFrame;
+      }
+    }
+
     if (faceIndex >= 0 && faceIndex < vgaImages.length) {
       blitHudVgaImage(vgaImages[faceIndex], 136, 164);
     }