public void Update(ParticleSystem system, long delta)
{
timer -= delta;
if (timer <= 0)
{
timer = interval;
Particle p = system.GetNewParticle(this, 1000);
p.SetColor(1, 1, 1, 0.5f);
p.SetPosition(x, y);
p.SetSize(size);
float vx = (-0.02f + (MathUtils.Random() * 0.04f));
float vy = (-(MathUtils.Random() * 0.15f));
p.SetVelocity(vx, vy, 1.1f);
}
}
public void UpdateParticle(Particle particle, long delta)
{
particleCount++;
particle.x += adjustx;
particle.y += adjusty;
particle.AdjustVelocity(windFactor.GetValue(0) * 0.00005f * delta,
gravityFactor.GetValue(0) * 0.00005f * delta);
float offset = particle.GetLife() / particle.GetOriginalLife();
float inv = 1 - offset;
float colOffset = 0;
float colInv = 1;
LColor startColor = null;
LColor endColor = null;
for (int i = 0; i < colors.Count - 1; i++)
{
ColorRecord rec1 = (ColorRecord)colors[i];
ColorRecord rec2 = (ColorRecord)colors[i + 1];
if ((inv >= rec1.pos) && (inv <= rec2.pos))
{
startColor = rec1.col;
endColor = rec2.col;
float step = rec2.pos - rec1.pos;
colOffset = inv - rec1.pos;
colOffset /= step;
colOffset = 1 - colOffset;
colInv = 1 - colOffset;
}
}
if (startColor != null)
{
float r = (startColor.r * colOffset) + (endColor.r * colInv);
float g = (startColor.g * colOffset) + (endColor.g * colInv);
float b = (startColor.b * colOffset) + (endColor.b * colInv);
float a;
if (alpha.IsActive())
{
a = alpha.GetValue(inv) / 255.0f;
}
else
{
a = ((startAlpha.GetValue(0) / 255.0f) * offset)
+ ((endAlpha.GetValue(0) / 255.0f) * inv);
}
particle.SetColor(r, g, b, a);
}
if (size.IsActive())
{
float s = size.GetValue(inv);
particle.SetSize(s);
}
else
{
particle.AdjustSize(delta * growthFactor.GetValue(0) * 0.001f);
}
if (velocity.IsActive())
{
particle.SetSpeed(velocity.GetValue(inv));
}
if (scaleY.IsActive())
{
particle.SetScaleY(scaleY.GetValue(inv));
}
}
public void Update(ParticleSystem system, long delta)
{
this.engine = system;
if (!adjust)
{
adjustx = 0;
adjusty = 0;
}
else
{
adjust = false;
}
if (updateImage)
{
updateImage = false;
string name = (relativePath + imageName).Trim();
if (name.Length > 0)
{
try {
image = LTextures.LoadTexture(name);
} catch (Exception e) {
image = null;
Log.Exception(e);
}
}
}
if ((wrapUp) || ((length.IsEnabled()) && (timeout < 0)) ||
((emitCount.IsEnabled() && (leftToEmit <= 0))))
{
if (particleCount == 0)
{
completed = true;
}
}
particleCount = 0;
if (wrapUp)
{
return;
}
if (length.IsEnabled())
{
if (timeout < 0)
{
return;
}
timeout -= delta;
}
if (emitCount.IsEnabled())
{
if (leftToEmit <= 0)
{
return;
}
}
nextSpawn -= delta;
if (nextSpawn < 0)
{
nextSpawn = (int)spawnInterval.Random();
int count = (int)spawnCount.Random();
for (int i = 0; i < count; i++)
{
Particle p = system.GetNewParticle(this, initialLife.Random());
p.SetSize(initialSize.Random());
p.SetPosition(x + xOffset.Random(), y + yOffset.Random());
p.SetVelocity(0, 0, 0);
float dist = initialDistance.Random();
float power = speed.Random();
if ((dist != 0) || (power != 0))
{
float s = spread.GetValue(0);
float ang = (s + angularOffset.GetValue(0) - (spread
.GetValue() / 2)) - 90;
float xa = MathUtils.Cos(MathUtils.ToRadians(ang)) * dist;
float ya = MathUtils.Sin(MathUtils.ToRadians(ang)) * dist;
p.AdjustPosition(xa, ya);
float xv = MathUtils.Cos(MathUtils.ToRadians(ang));
float yv = MathUtils.Sin(MathUtils.ToRadians(ang));
p.SetVelocity(xv, yv, power * 0.001f);
}
if (image != null)
{
p.SetImage(image);
}
ColorRecord start = (ColorRecord)colors[0];
p.SetColor(start.col.r, start.col.g, start.col.b,
startAlpha.GetValue(0) / 255.0f);
p.SetUsePoint(usePoints);
p.SetOriented(useOriented);
if (emitCount.IsEnabled())
{
leftToEmit--;
if (leftToEmit <= 0)
{
break;
}
}
}
}
}
public void UpdateParticle(Particle particle, long delta)
{
particleCount++;
particle.x += adjustx;
particle.y += adjusty;
particle.AdjustVelocity(windFactor.GetValue(0) * 0.00005f * delta,
gravityFactor.GetValue(0) * 0.00005f * delta);
float offset = particle.GetLife() / particle.GetOriginalLife();
float inv = 1 - offset;
float colOffset = 0;
float colInv = 1;
LColor startColor = null;
LColor endColor = null;
for (int i = 0; i < colors.Count - 1; i++) {
ColorRecord rec1 = (ColorRecord) colors[i];
ColorRecord rec2 = (ColorRecord) colors[i + 1];
if ((inv >= rec1.pos) && (inv <= rec2.pos)) {
startColor = rec1.col;
endColor = rec2.col;
float step = rec2.pos - rec1.pos;
colOffset = inv - rec1.pos;
colOffset /= step;
colOffset = 1 - colOffset;
colInv = 1 - colOffset;
}
}
if (startColor != null) {
float r = (startColor.r * colOffset) + (endColor.r * colInv);
float g = (startColor.g * colOffset) + (endColor.g * colInv);
float b = (startColor.b * colOffset) + (endColor.b * colInv);
float a;
if (alpha.IsActive()) {
a = alpha.GetValue(inv) / 255.0f;
} else {
a = ((startAlpha.GetValue(0) / 255.0f) * offset)
+ ((endAlpha.GetValue(0) / 255.0f) * inv);
}
particle.SetColor(r, g, b, a);
}
if (size.IsActive()) {
float s = size.GetValue(inv);
particle.SetSize(s);
} else {
particle.AdjustSize(delta * growthFactor.GetValue(0) * 0.001f);
}
if (velocity.IsActive()) {
particle.SetSpeed(velocity.GetValue(inv));
}
if (scaleY.IsActive()) {
particle.SetScaleY(scaleY.GetValue(inv));
}
}