add 'random_sub_uv' particle setting

2024-11-03 16:49:31 +03:00
parent c8187c5f25
commit 86b83a5377
5 changed files with 31 additions and 2 deletions
@@ -67,7 +67,16 @@ void Emitter::update(
        particle.emitter = this;
        particle.random = random.rand32();
        particle.position = position;
+        particle.lifetime *= 1.0f - preset.lifetimeSpread * random.randFloat();
        particle.velocity += glm::ballRand(1.0f) * preset.explosion;
+        if (preset.randomSubUV < 1.0f) {
+            particle.region.autoSub(
+                preset.randomSubUV,
+                preset.randomSubUV,
+                random.randFloat(),
+                random.randFloat()
+            );
+        }
        particles.push_back(std::move(particle));
        timer -= spawnInterval;
        if (count > 0) {