bool UpdateParticle(ref CCParticleGravity particleGrav, float dt)
{
if (UpdateParticleBase(ref particleGrav.ParticleBase, dt))
{
float radial_x = 0;
float radial_y = 0;
float tmp_x, tmp_y;
float tangential_x, tangential_y;
CCPoint pos = particleGrav.ParticleBase.Position;
float x = pos.X;
float y = pos.Y;
if (x != 0 || y != 0)
{
float l = 1.0f / (float)Math.Sqrt(x * x + y * y);
radial_x = x * l;
radial_y = y * l;
}
tangential_x = radial_x;
tangential_y = radial_y;
float radialAccel = particleGrav.RadialAccel;
radial_x *= radialAccel;
radial_y *= radialAccel;
float tangentAccel = particleGrav.TangentialAccel;
float newy = tangential_x;
tangential_x = -tangential_y;
tangential_y = newy;
tangential_x *= tangentAccel;
tangential_y *= tangentAccel;
CCPoint gravity = GravityMode.Gravity;
tmp_x = (radial_x + tangential_x + gravity.X) * dt;
tmp_y = (radial_y + tangential_y + gravity.Y) * dt;
CCPoint direction = particleGrav.Direction;
direction.X += tmp_x;
direction.Y += tmp_y;
particleGrav.Direction = direction;
CCPoint position = particleGrav.ParticleBase.Position;
position.X += direction.X * dt;
position.Y += direction.Y * dt;
particleGrav.ParticleBase.Position = position;
return(true);
}
return(false);
}
CCParticleSystem(int numberOfParticles, bool shouldAllocParticles, CCEmitterMode emitterMode = CCEmitterMode.Gravity)
{
TotalParticles = numberOfParticles;
AllocatedParticles = numberOfParticles;
PositionType = CCPositionType.Free;
EmitterMode = emitterMode;
IsActive = true;
AutoRemoveOnFinish = false;
if (shouldAllocParticles)
{
if (emitterMode == CCEmitterMode.Gravity)
{
GravityParticles = new CCParticleGravity[numberOfParticles];
}
else
{
RadialParticles = new CCParticleRadial[numberOfParticles];
}
}
}
// Initialise particle
void InitParticle(ref CCParticleGravity particleGrav, ref CCParticleBase particleBase)
{
InitParticleBase(ref particleBase);
// direction
float a = MathHelper.ToRadians(Angle + AngleVar * CCRandom.Float_Minus1_1());
if (EmitterMode == CCEmitterMode.Gravity)
{
CCPoint v = new CCPoint(CCMathHelper.Cos(a), CCMathHelper.Sin(a));
float s = GravityMode.Speed + GravityMode.SpeedVar * CCRandom.Float_Minus1_1();
particleGrav.Direction = v * s;
particleGrav.RadialAccel = GravityMode.RadialAccel + GravityMode.RadialAccelVar * CCRandom.Float_Minus1_1();
particleGrav.TangentialAccel = GravityMode.TangentialAccel + GravityMode.TangentialAccelVar * CCRandom.Float_Minus1_1();
if (GravityMode.RotationIsDir)
{
particleBase.Rotation = -MathHelper.ToDegrees(CCPoint.ToAngle(particleGrav.Direction));
}
}
}
public CCParticleSystem(CCParticleSystemConfig particleConfig) : this(particleConfig.MaxParticles, false)
{
Duration = particleConfig.Duration;;
Life = particleConfig.Life;
LifeVar = particleConfig.LifeVar;
EmissionRate = TotalParticles / Life;
Angle = particleConfig.Angle;
AngleVar = particleConfig.AngleVar;
CCBlendFunc blendFunc = new CCBlendFunc();
blendFunc.Source = particleConfig.BlendFunc.Source;
blendFunc.Destination = particleConfig.BlendFunc.Destination;
BlendFunc = blendFunc;
CCColor4F startColor = new CCColor4F();
startColor.R = particleConfig.StartColor.R;
startColor.G = particleConfig.StartColor.G;
startColor.B = particleConfig.StartColor.B;
startColor.A = particleConfig.StartColor.A;
StartColor = startColor;
CCColor4F startColorVar = new CCColor4F();
startColorVar.R = particleConfig.StartColorVar.R;
startColorVar.G = particleConfig.StartColorVar.G;
startColorVar.B = particleConfig.StartColorVar.B;
startColorVar.A = particleConfig.StartColorVar.A;
StartColorVar = startColorVar;
CCColor4F endColor = new CCColor4F();
endColor.R = particleConfig.EndColor.R;
endColor.G = particleConfig.EndColor.G;
endColor.B = particleConfig.EndColor.B;
endColor.A = particleConfig.EndColor.A;
EndColor = endColor;
CCColor4F endColorVar = new CCColor4F();
endColorVar.R = particleConfig.EndColorVar.R;
endColorVar.G = particleConfig.EndColorVar.G;
endColorVar.B = particleConfig.EndColorVar.B;
endColorVar.A = particleConfig.EndColorVar.A;
EndColorVar = endColorVar;
StartSize = particleConfig.StartSize;
StartSizeVar = particleConfig.StartSizeVar;
EndSize = particleConfig.EndSize;
EndSizeVar = particleConfig.EndSizeVar;
CCPoint position;
position.X = particleConfig.Position.X;
position.Y = particleConfig.Position.Y;
Position = position;
CCPoint positionVar;
positionVar.X = particleConfig.PositionVar.X;
positionVar.Y = particleConfig.PositionVar.X;
PositionVar = positionVar;
StartSpin = particleConfig.StartSpin;
StartSpinVar = particleConfig.StartSpinVar;
EndSpin = particleConfig.EndSpin;
EndSpinVar = particleConfig.EndSpinVar;
EmitterMode = particleConfig.EmitterMode;
if (EmitterMode == CCEmitterMode.Gravity)
{
GravityParticles = new CCParticleGravity[TotalParticles];
GravityMoveMode newGravityMode = new GravityMoveMode();
CCPoint gravity;
gravity.X = particleConfig.Gravity.X;
gravity.Y = particleConfig.Gravity.Y;
newGravityMode.Gravity = gravity;
newGravityMode.Speed = particleConfig.GravitySpeed;
newGravityMode.SpeedVar = particleConfig.GravitySpeedVar;
newGravityMode.RadialAccel = particleConfig.GravityRadialAccel;
newGravityMode.RadialAccelVar = particleConfig.GravityRadialAccelVar;
newGravityMode.TangentialAccel = particleConfig.GravityTangentialAccel;
newGravityMode.TangentialAccelVar = particleConfig.GravityTangentialAccelVar;
newGravityMode.RotationIsDir = particleConfig.GravityRotationIsDir;
GravityMode = newGravityMode;
}
else if (EmitterMode == CCEmitterMode.Radius)
{
RadialParticles = new CCParticleRadial[TotalParticles];
RadialMoveMode newRadialMode = new RadialMoveMode();
newRadialMode.StartRadius = particleConfig.RadialStartRadius;
newRadialMode.StartRadiusVar = particleConfig.RadialStartRadiusVar;
newRadialMode.EndRadius = particleConfig.RadialEndRadius;
newRadialMode.EndRadiusVar = particleConfig.RadialEndRadiusVar;
newRadialMode.RotatePerSecond = particleConfig.RadialRotatePerSecond;
newRadialMode.RotatePerSecondVar = particleConfig.RadialRotatePerSecondVar;
RadialMode = newRadialMode;
}
else
{
Debug.Assert(false, "Invalid emitterType in config file");
return;
}
// Don't get the internal texture if a batchNode is used
if (BatchNode == null)
{
Texture = particleConfig.Texture;
}
}
bool UpdateParticle(ref CCParticleGravity particleGrav, float dt)
{
if(UpdateParticleBase(ref particleGrav.ParticleBase, dt))
{
float radial_x = 0;
float radial_y = 0;
float tmp_x, tmp_y;
float tangential_x, tangential_y;
CCPoint pos = particleGrav.ParticleBase.Position;
float x = pos.X;
float y = pos.Y;
if (x != 0 || y != 0)
{
float l = 1.0f / (float) Math.Sqrt(x * x + y * y);
radial_x = x * l;
radial_y = y * l;
}
tangential_x = radial_x;
tangential_y = radial_y;
float radialAccel = particleGrav.RadialAccel;
radial_x *= radialAccel;
radial_y *= radialAccel;
float tangentAccel = particleGrav.TangentialAccel;
float newy = tangential_x;
tangential_x = -tangential_y;
tangential_y = newy;
tangential_x *= tangentAccel;
tangential_y *= tangentAccel;
CCPoint gravity = GravityMode.Gravity;
tmp_x = (radial_x + tangential_x + gravity.X) * dt;
tmp_y = (radial_y + tangential_y + gravity.Y) * dt;
CCPoint direction = particleGrav.Direction;
direction.X += tmp_x;
direction.Y += tmp_y;
particleGrav.Direction = direction;
CCPoint position = particleGrav.ParticleBase.Position;
position.X += direction.X * dt;
position.Y += direction.Y * dt;
particleGrav.ParticleBase.Position = position;
return true;
}
return false;
}
// Initialise particle
void InitParticle(ref CCParticleGravity particleGrav, ref CCParticleBase particleBase)
{
InitParticleBase(ref particleBase);
// direction
float a = MathHelper.ToRadians(Angle + AngleVar * CCRandom.Float_Minus1_1());
if(EmitterMode == CCEmitterMode.Gravity)
{
CCPoint v = new CCPoint(CCMathHelper.Cos(a), CCMathHelper.Sin(a));
float s = GravityMode.Speed + GravityMode.SpeedVar * CCRandom.Float_Minus1_1();
particleGrav.Direction = v * s;
particleGrav.RadialAccel = GravityMode.RadialAccel + GravityMode.RadialAccelVar * CCRandom.Float_Minus1_1();
particleGrav.TangentialAccel = GravityMode.TangentialAccel + GravityMode.TangentialAccelVar * CCRandom.Float_Minus1_1();
if (GravityMode.RotationIsDir)
{
particleBase.Rotation = -MathHelper.ToDegrees(CCPoint.ToAngle(particleGrav.Direction));
}
}
}
public CCParticleSystem(CCParticleSystemConfig particleConfig) : this(particleConfig.MaxParticles, false)
{
Duration = particleConfig.Duration;;
Life = particleConfig.Life;
LifeVar = particleConfig.LifeVar;
EmissionRate = TotalParticles / Life;
Angle = particleConfig.Angle;
AngleVar = particleConfig.AngleVar;
CCColor4F startColor = new CCColor4F();
startColor.R = particleConfig.StartColor.R;
startColor.G = particleConfig.StartColor.G;
startColor.B = particleConfig.StartColor.B;
startColor.A = particleConfig.StartColor.A;
StartColor = startColor;
CCColor4F startColorVar = new CCColor4F();
startColorVar.R = particleConfig.StartColorVar.R;
startColorVar.G = particleConfig.StartColorVar.G;
startColorVar.B = particleConfig.StartColorVar.B;
startColorVar.A = particleConfig.StartColorVar.A;
StartColorVar = startColorVar;
CCColor4F endColor = new CCColor4F();
endColor.R = particleConfig.EndColor.R;
endColor.G = particleConfig.EndColor.G;
endColor.B = particleConfig.EndColor.B;
endColor.A = particleConfig.EndColor.A;
EndColor = endColor;
CCColor4F endColorVar = new CCColor4F();
endColorVar.R = particleConfig.EndColorVar.R;
endColorVar.G = particleConfig.EndColorVar.G;
endColorVar.B = particleConfig.EndColorVar.B;
endColorVar.A = particleConfig.EndColorVar.A;
EndColorVar = endColorVar;
StartSize = particleConfig.StartSize;
StartSizeVar = particleConfig.StartSizeVar;
EndSize = particleConfig.EndSize;
EndSizeVar = particleConfig.EndSizeVar;
CCPoint position;
position.X = particleConfig.Position.X;
position.Y = particleConfig.Position.Y;
Position = position;
CCPoint positionVar;
positionVar.X = particleConfig.PositionVar.X;
positionVar.Y = particleConfig.PositionVar.X;
PositionVar = positionVar;
StartSpin = particleConfig.StartSpin;
StartSpinVar = particleConfig.StartSpinVar;
EndSpin = particleConfig.EndSpin;
EndSpinVar = particleConfig.EndSpinVar;
EmitterMode = particleConfig.EmitterMode;
if (EmitterMode == CCEmitterMode.Gravity)
{
GravityParticles = new CCParticleGravity[TotalParticles];
GravityMoveMode newGravityMode = new GravityMoveMode();
CCPoint gravity;
gravity.X = particleConfig.Gravity.X;
gravity.Y = particleConfig.Gravity.Y;
newGravityMode.Gravity = gravity;
newGravityMode.Speed = particleConfig.GravitySpeed;
newGravityMode.SpeedVar = particleConfig.GravitySpeedVar;
newGravityMode.RadialAccel = particleConfig.GravityRadialAccel;
newGravityMode.RadialAccelVar = particleConfig.GravityRadialAccelVar;
newGravityMode.TangentialAccel = particleConfig.GravityTangentialAccel;
newGravityMode.TangentialAccelVar = particleConfig.GravityTangentialAccelVar;
newGravityMode.RotationIsDir = particleConfig.GravityRotationIsDir;
GravityMode = newGravityMode;
}
else if (EmitterMode == CCEmitterMode.Radius)
{
RadialParticles = new CCParticleRadial[TotalParticles];
RadialMoveMode newRadialMode = new RadialMoveMode();
newRadialMode.StartRadius = particleConfig.RadialStartRadius;
newRadialMode.StartRadiusVar = particleConfig.RadialStartRadiusVar;
newRadialMode.EndRadius = particleConfig.RadialEndRadius;
newRadialMode.EndRadiusVar = particleConfig.RadialEndRadiusVar;
newRadialMode.RotatePerSecond = particleConfig.RadialRotatePerSecond;
newRadialMode.RotatePerSecondVar = particleConfig.RadialRotatePerSecondVar;
RadialMode = newRadialMode;
}
else
{
Debug.Assert(false, "Invalid emitterType in config file");
return;
}
}
CCParticleSystem(int numberOfParticles, bool shouldAllocParticles, CCEmitterMode emitterMode = CCEmitterMode.Gravity)
{
TotalParticles = numberOfParticles;
AllocatedParticles = numberOfParticles;
PositionType = CCPositionType.Free;
EmitterMode = emitterMode;
IsActive = true;
AutoRemoveOnFinish = false;
if(shouldAllocParticles)
{
if (emitterMode == CCEmitterMode.Gravity)
{
GravityParticles = new CCParticleGravity[numberOfParticles];
}
else
{
RadialParticles = new CCParticleRadial[numberOfParticles];
}
}
}
