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Onek8
2026-05-17 18:28:03 -07:00
parent 8b65973bff
commit acc0d62321
1 changed files with 68 additions and 72 deletions
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36
leenkx/Sources/iron/object/ParticleSystemCPU.hx
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@ -139,11 +139,6 @@ class ParticleSystemCPU {
scaleElementsCount = getRampElementsLength();
scaleRampSizeFactor = getRampSizeFactor();
Scene.active.notifyOnInit(function () {
var i: Int;
for (i in 0...count) addToPool();
});
switch (type) {
case 0: // Emission
loopAnim = {
@ -163,16 +158,19 @@ class ParticleSystemCPU {
if (loop) start();
}
}
Scene.active.notifyOnInit(function () {
if (autoStart) start();
});
case 1: // Hair
Scene.active.notifyOnInit(function () {
var i: Int;
for (i in 0...count) spawnParticle();
});
default:
}
Scene.active.notifyOnInit(function () {
if (autoStart) start();
for (i in 0...count) addToPool();
});
});
}
@ -370,17 +368,6 @@ class ParticleSystemCPU {
particlePhysics.set(o, physics);
o.transform.buildMatrix();
}
}
function setVelocityHair(object: Object, velocity: Vec4, randQuat: Quat, phaseQuat: Quat) {
var dir: Vec4 = velocity.clone().normalize();
var yaw: FastFloat = Math.atan2(-dir.x, dir.y);
var pitch: FastFloat = Math.asin(dir.z);
var targetRot: Quat = new Quat().fromEuler(pitch, 0, yaw);
targetRot.mult(randQuat);
object.transform.rot.setFrom(targetRot.mult(phaseQuat));
}
function updateParticles() {
for (particle => physics in particlePhysics) {
@ -415,13 +402,22 @@ class ParticleSystemCPU {
}
}
function setVelocityHair(object: Object, velocity: Vec4, randQuat: Quat, phaseQuat: Quat) {
var dir: Vec4 = velocity.clone().normalize();
var yaw: FastFloat = Math.atan2(-dir.x, dir.y);
var pitch: FastFloat = Math.asin(dir.z);
var targetRot: Quat = new Quat().fromEuler(pitch, 0, yaw);
targetRot.mult(randQuat);
object.transform.rot.setFrom(targetRot.mult(phaseQuat));
}
// Linear interpolation
function interpolateRampValue(normalizedAge: FastFloat, positions: Array<FastFloat>, colors: Array<FastFloat>): FastFloat {
if (positions.length == 0) return 1.0;
if (normalizedAge <= positions[0]) return colors[0];
if (normalizedAge >= positions[positions.length - 1]) return colors[colors.length - 1];
var i: Int;
for (i in 0...(positions.length - 1)) {
if (normalizedAge >= positions[i] && normalizedAge <= positions[i + 1]) {
var t: FastFloat = (normalizedAge - positions[i]) / (positions[i + 1] - positions[i]);
@ -535,6 +531,7 @@ class ParticleSystemCPU {
var v = c.sub(a);
return a.add(u.mult(x).add(v.mult(y)));
}
}
typedef TParticlePhysics = {
var velocity: Vec4;
@ -547,5 +544,4 @@ class ParticleSystemCPU {
var rampColors: Array<FastFloat>;
var scaleRampSizeFactor: FastFloat;
}
}
#end