hero variants, fix bubble

backend/internal/model/hero_model_variant.go

@@ -0,0 +1,10 @@
+package model
+
+const (
+	HeroModelVariantMin = 0
+	HeroModelVariantMax = 2
+)
+
+func IsValidHeroModelVariant(v int) bool {
+	return v >= HeroModelVariantMin && v <= HeroModelVariantMax
+}

backend/migrations/000035_hero_model_variant.sql

@@ -0,0 +1,16 @@
+ALTER TABLE heroes
+    ADD COLUMN hero_model_variant integer;
+
+UPDATE heroes
+SET hero_model_variant = floor(random() * 3)::int
+WHERE hero_model_variant IS NULL;
+
+ALTER TABLE heroes
+    ALTER COLUMN hero_model_variant SET NOT NULL;
+
+ALTER TABLE heroes
+    ALTER COLUMN hero_model_variant SET DEFAULT floor(random() * 3)::int;
+
+ALTER TABLE heroes
+    ADD CONSTRAINT heroes_hero_model_variant_check
+    CHECK (hero_model_variant BETWEEN 0 AND 2);

frontend/src/game/renderer.ts

@@ -1203,7 +1203,8 @@ export class GameRenderer {
     ]);
     gfx.fill({ color: 0xffffff, alpha: 0.92 * alpha });
 
-    gfx.zIndex = by + 400; // above hero
+    // Keep bubble behind the text so the text stays visible.
+    gfx.zIndex = by + 200; // above hero, below text
 
     // Text position (centered in bubble)
     txt.x = bx;