xref: /third_party/skia/resources/particles/mouse_trail.json
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1cb93a386Sopenharmony_ci{
2cb93a386Sopenharmony_ci   "MaxCount": 2000,
3cb93a386Sopenharmony_ci   "Drawable": {
4cb93a386Sopenharmony_ci      "Type": "SkCircleDrawable",
5cb93a386Sopenharmony_ci      "Radius": 4
6cb93a386Sopenharmony_ci   },
7cb93a386Sopenharmony_ci   "Code": [
8cb93a386Sopenharmony_ci      "void effectSpawn(inout Effect effect) {",
9cb93a386Sopenharmony_ci      "  effect.rate = 800;",
10cb93a386Sopenharmony_ci      "}",
11cb93a386Sopenharmony_ci      "",
12cb93a386Sopenharmony_ci      "void spawn(inout Particle p) {",
13cb93a386Sopenharmony_ci      "  p.lifetime = 2 + rand(p.seed);",
14cb93a386Sopenharmony_ci      "  float a = radians(rand(p.seed) * 360);",
15cb93a386Sopenharmony_ci      "  p.vel = float2(cos(a), sin(a)) * mix(5, 15, rand(p.seed));",
16cb93a386Sopenharmony_ci      "  p.scale = mix(0.25, 0.75, rand(p.seed));",
17cb93a386Sopenharmony_ci      "}",
18cb93a386Sopenharmony_ci      "",
19cb93a386Sopenharmony_ci      "void update(inout Particle p) {",
20cb93a386Sopenharmony_ci      "  p.color.r = p.age;",
21cb93a386Sopenharmony_ci      "  p.color.g = 1 - p.age;",
22cb93a386Sopenharmony_ci      "}",
23cb93a386Sopenharmony_ci      ""
24cb93a386Sopenharmony_ci   ],
25cb93a386Sopenharmony_ci   "Bindings": []
26cb93a386Sopenharmony_ci}

Indexes created Thu Nov 07 10:32:03 CST 2024