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Explode on particle emitter

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This commit is contained in:
Felipe Alfonso 2017-09-22 11:44:03 -03:00
parent 066ce233b8
commit a5d9d85f24
1 changed files with 64 additions and 32 deletions
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96
v3/src/gameobjects/emitter/ParticleEmitter.js
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@ -47,7 +47,12 @@ var ParticleEmitter = new Class({
this.gravityX = 0;
this.gravityY = 0;
this.life = 1.0;
this.delay = 0.0;
this.delayCounter = 0.0;
this.deathCallback = null;
this.emitCount = 1;
this.enabled = true;
this.allowCreation = true;
this.easingFunctionAlpha = Easing.Linear;
this.easingFunctionScale = Easing.Linear;
this.easingFunctionRotation = Easing.Linear;
@ -115,6 +120,11 @@ var ParticleEmitter = new Class({
this.gravityY = y;
},
setEmitterDelay: function (delay)
{
this.delay = delay;
},
reserve: function (particleCount)
{
var dead = this.dead;
@ -178,41 +188,56 @@ var ParticleEmitter = new Class({
}
},
emitParticle: function()
explode: function (count)
{
if (!count) count = 100;
this.emitParticle(100);
},
emitParticle: function(count)
{
count = count || 1;
var particle = null;
var rad = DegToRad(Between(this.minEmitAngle, this.maxEmitAngle));
var speed = Between(this.minSpeed, this.maxSpeed);
var vx = Math.cos(rad) * speed;
var vy = Math.sin(rad) * speed;
if (this.dead.length > 0)
{
particle = this.dead.pop();
particle.reset(this.x, this.y);
}
else
{
particle = new Particle(this.x, this.y);
}
particle.velocityX = vx;
particle.velocityY = vy;
particle.life = Math.max(this.life, Number.MIN_VALUE);
particle.lifeStep = particle.life;
particle.start.scale = this.startScale;
particle.end.scale = this.endScale;
particle.scaleX = this.startScale;
particle.scaleY = this.startScale;
particle.start.alpha = this.startAlpha;
particle.end.alpha = this.endAlpha;
particle.start.rotation = this.startAngle * Math.PI / 180;
particle.end.rotation = this.endAngle * Math.PI / 180;
particle.color = (particle.color & 0x00FFFFFF) | (((this.startAlpha * 0xFF)|0) << 24);
particle.index = this.alive.length;
this.alive.push(particle);
for (var index = 0; index < count; ++index)
{
var rad = DegToRad(Between(this.minEmitAngle, this.maxEmitAngle));
var speed = Between(this.minSpeed, this.maxSpeed);
var vx = Math.cos(rad) * speed;
var vy = Math.sin(rad) * speed;
if (this.dead.length > 0)
{
particle = this.dead.pop();
particle.reset(this.x, this.y);
}
else if (this.allowCreation)
{
particle = new Particle(this.x, this.y);
}
else
{
return null;
}
particle.velocityX = vx;
particle.velocityY = vy;
particle.life = Math.max(this.life, Number.MIN_VALUE);
particle.lifeStep = particle.life;
particle.start.scale = this.startScale;
particle.end.scale = this.endScale;
particle.scaleX = this.startScale;
particle.scaleY = this.startScale;
particle.start.alpha = this.startAlpha;
particle.end.alpha = this.endAlpha;
particle.start.rotation = this.startAngle * Math.PI / 180;
particle.end.rotation = this.endAngle * Math.PI / 180;
particle.color = (particle.color & 0x00FFFFFF) | (((this.startAlpha * 0xFF)|0) << 24);
particle.index = this.alive.length;
this.alive.push(particle);
}
return particle;
},
@ -259,7 +284,6 @@ var ParticleEmitter = new Class({
if (deathCallback) deathCallback(particle);
}
particle.lifeStep -= emitterStep;
}
/* Cleanup */
@ -269,6 +293,14 @@ var ParticleEmitter = new Class({
dead.push.apply(dead, particles.splice(particles.length - deadLength, deadLength));
StableSort(particles, function (a, b) { return a.index - b.index; });
}
this.delayCounter -= emitterStep;
if (this.delayCounter <= 0 && this.enabled)
{
this.emitParticle(this.emitCount);
this.delayCounter = this.delay;
}
}
});