protected virtual float GetSpread(Random rand, float sparam, float time)
{
var s_min = MathHelper.DegreesToRadians(MinSpread.GetValue(sparam, 0));
var s_max = MathHelper.DegreesToRadians(MaxSpread.GetValue(sparam, 0));
return(rand.NextFloat(s_min, s_max));
}
protected override void SetParticle(int idx, NodeReference reference, ParticleEffectInstance instance, ref Matrix4 transform, float sparam, float globaltime)
{
float w = Width.GetValue(sparam, 0) / 2;
float h = Height.GetValue(sparam, 0) / 2;
float d = Depth.GetValue(sparam, 0) / 2;
float s_min = MathHelper.DegreesToRadians(MinSpread.GetValue(sparam, 0));
float s_max = MathHelper.DegreesToRadians(MaxSpread.GetValue(sparam, 0));
var pos = new Vector3(
FxRandom.NextFloat(-w, w),
FxRandom.NextFloat(-h, h),
FxRandom.NextFloat(-d, d)
);
var n = RandomInCone(s_min, s_max);
//var tr = Transform.GetMatrix(sparam, globaltime);
//var tr = Matrix4.Identity;
//n = (tr * new Vector4(n.Normalized(), 0)).Xyz.Normalized();
Vector3 translate;
Quaternion rotate;
if (DoTransform(reference, sparam, globaltime, out translate, out rotate))
{
pos += translate;
n = rotate * n;
}
var pr = pos;
instance.Pool.Particles[idx].Position = pr;
instance.Pool.Particles [idx].Normal = n * Pressure.GetValue(sparam, 0);
}
protected override void SetParticle(int idx, ParticleEffect fx, ParticleEffectInstance instance, ref Matrix4 transform, float sparam)
{
float w = Width.GetValue(sparam, 0) / 2;
float h = Height.GetValue(sparam, 0) / 2;
float d = Depth.GetValue(sparam, 0) / 2;
float s_min = MathHelper.DegreesToRadians(MinSpread.GetValue(sparam, 0));
float s_max = MathHelper.DegreesToRadians(MaxSpread.GetValue(sparam, 0));
var pos = new Vector3(
instance.Random.NextFloat(-w, w),
instance.Random.NextFloat(-h, h),
instance.Random.NextFloat(-d, d)
);
//var angle = instance.Random.NextFloat(s_min, s_max);
/*var n = new Vector3(
* (float)(Math.Cos(angle)),
* 1,
* (float)(Math.Sin(angle))
* );*/
var n = RandomInCone(instance.Random, s_min, s_max);
var tr = Transform.GetMatrix(sparam, 0);
n = (tr * new Vector4(n.Normalized(), 0)).Xyz.Normalized();
var pr = pos;
instance.Particles[idx].Position = pr;
instance.Particles [idx].Normal = n * Pressure.GetValue(sparam, 0);
}
protected override void SetParticle(int idx, NodeReference reference, ParticleEffectInstance instance, ref Matrix4x4 transform, float sparam, float globaltime)
{
var r_min = MinRadius.GetValue(sparam, 0);
var r_max = MaxRadius.GetValue(sparam, 0);
var radius = FxRandom.NextFloat(r_min, r_max);
var p = new Vector3(
FxRandom.NextFloat(-1, 1),
FxRandom.NextFloat(-1, 1),
FxRandom.NextFloat(-1, 1)
);
p.Normalize();
var n = p;
Vector3 translate;
Quaternion rotate;
if (DoTransform(reference, sparam, globaltime, out translate, out rotate))
{
p += translate;
n = Vector3.Transform(n, rotate);
}
n *= Pressure.GetValue(sparam, 0);
var pr = p * radius;
instance.Pool.Particles[idx].Position = pr;
instance.Pool.Particles[idx].Normal = n;
}
protected override void SetParticle(int idx, NodeReference reference, ParticleEffectInstance instance, ref Matrix4 transform, float sparam, float globaltime)
{
var r_min = MinRadius.GetValue(sparam, 0);
var r_max = MaxRadius.GetValue(sparam, 0);
var radius = instance.Random.NextFloat(r_min, r_max);
var p = new Vector3(
instance.Random.NextFloat(-1, 1),
instance.Random.NextFloat(-1, 1),
instance.Random.NextFloat(-1, 1)
);
p.Normalize();
var direction = p;
var tr = Transform.GetMatrix(sparam, globaltime);
var n = (tr * new Vector4(direction, 0)).Xyz.Normalized();
n *= Pressure.GetValue(sparam, 0);
var pr = p * radius;
instance.Particles[idx].Position = pr;
instance.Particles[idx].Normal = n;
}
public override void Update(NodeReference reference, ParticleEffectInstance instance, TimeSpan delta, ref Matrix4 transform, float sparam)
{
if (reference.Paired.Count == 0)
{
return;
}
if (NodeLifeSpan < instance.GlobalTime)
{
return;
}
if (reference.Paired[0].Node.NodeLifeSpan < instance.GlobalTime)
{
return;
}
var maxCount = 1000;
//var maxCount = MaxParticles == null ? int.MaxValue : (int)Math.Ceiling(MaxParticles.GetValue(sparam, 0f));
var freq = Frequency == null ? 0f : Frequency.GetValue(sparam, 0f);
var spawnMs = freq <= 0 ? 0 : 1 / (double)freq;
var state = instance.GetEmitterState(reference);
if (state.ParticleCount >= maxCount)
{
return;
}
int j = 0;
if (spawnMs > 0)
{
//Spawn lots of particles
var dt = Math.Min(delta.TotalSeconds, 1); //don't go crazy during debug pauses
while (true)
{
if (state.SpawnTimer < dt)
{
dt -= state.SpawnTimer;
state.SpawnTimer = spawnMs;
}
else
{
state.SpawnTimer -= dt;
break;
}
if (state.ParticleCount + 1 <= maxCount)
{
var idx = instance.GetNextFreeParticle();
if (idx == -1)
{
return;
}
j++;
state.ParticleCount++;
SpawnParticle(idx, reference, instance, ref transform, sparam, (float)instance.GlobalTime);
var app = (FxAppearance)reference.Paired[0].Node;
app.OnParticleSpawned(idx, instance.Pool.Particles[idx].Appearance, instance);
}
}
}
}
protected void SpawnParticle(int idx, NodeReference reference, ParticleEffectInstance instance, ref Matrix4 transform, float sparam)
{
instance.Particles[idx].Active = true;
instance.Particles[idx].Emitter = reference;
instance.Particles[idx].Appearance = reference.Paired[0];
instance.Particles[idx].TimeAlive = 0f;
instance.Particles[idx].LifeSpan = InitLifeSpan.GetValue(sparam, 0f);
SetParticle(idx, reference, instance, ref transform, sparam);
}
protected void SpawnParticle(int idx, ParticleEffect fx, ParticleEffectInstance instance, ref Matrix4 transform, float sparam)
{
instance.Particles[idx].Active = true;
instance.Particles[idx].Emitter = this;
instance.Particles[idx].Appearance = (FxAppearance)fx.Pairs[this][0];
instance.Particles[idx].TimeAlive = 0f;
instance.Particles[idx].LifeSpan = InitLifeSpan.GetValue(sparam, 0f);
SetParticle(idx, fx, instance, ref transform, sparam);
}
protected float GetFrame(float globaltime, float sparam, ref Particle particle)
{
float frame = 0;
if (UseCommonAnimation)
{
frame = CommonAnimation.GetValue(sparam, globaltime);
}
else
{
frame = Animation.GetValue(sparam, particle.TimeAlive / particle.LifeSpan);
}
return(MathHelper.Clamp(frame, 0, 1));
}
public override void Update(ParticleEffect fx, ParticleEffectInstance instance, TimeSpan delta, ref Matrix4 transform, float sparam)
{
if (!fx.Pairs.ContainsKey(this))
{
return;
}
var maxCount = MaxParticles == null ? int.MaxValue : (int)Math.Ceiling(MaxParticles.GetValue(sparam, 0f));
var freq = Frequency == null ? 0f : Frequency.GetValue(sparam, 0f);
var spawnMs = freq <= 0 ? 0 : 1 / (double)freq;
var state = instance.GetEmitterState(this);
if (state.ParticleCount >= maxCount)
{
return;
}
if (spawnMs > 0)
{
//Spawn lots of particles
var dt = Math.Min(delta.TotalSeconds, 1); //don't go crazy during debug pauses
while (true)
{
if (state.SpawnTimer < dt)
{
dt -= state.SpawnTimer;
state.SpawnTimer = spawnMs;
}
else
{
state.SpawnTimer -= dt;
break;
}
if (state.ParticleCount + 1 <= maxCount)
{
var idx = instance.GetNextFreeParticle();
if (idx == -1)
{
return;
}
state.ParticleCount++;
SpawnParticle(idx, fx, instance, ref transform, sparam);
instance.Particles[idx].Appearance.OnParticleSpawned(idx, instance);
}
}
}
}
protected override void SetParticle(int idx, ParticleEffect fx, ParticleEffectInstance instance, ref Matrix4 transform, float sparam)
{
var r_min = MinRadius.GetValue(sparam, 0);
var r_max = MaxRadius.GetValue(sparam, 0);
var radius = instance.Random.NextFloat(r_min, r_max);
float s_min = MathHelper.DegreesToRadians(MinSpread.GetValue(sparam, 0));
float s_max = MathHelper.DegreesToRadians(MaxSpread.GetValue(sparam, 0));
var direction = RandomInCone(instance.Random, s_min, s_max);
var tr = Transform.GetMatrix(sparam, 0);
var n = (tr * new Vector4(direction.Normalized(), 0)).Xyz.Normalized();
var p = n * radius;
n *= Pressure.GetValue(sparam, 0);
instance.Particles[idx].Position = p;
instance.Particles[idx].Normal = n;
}
protected void SpawnParticle(int idx, NodeReference reference, ParticleEffectInstance instance, ref Matrix4 transform, float sparam, float globaltime)
{
instance.Particles[idx].Active = true;
instance.Particles[idx].Emitter = reference;
instance.Particles[idx].Appearance = reference.Paired[0];
instance.Particles[idx].TimeAlive = 0f;
instance.Particles[idx].LifeSpan = InitLifeSpan.GetValue(sparam, 0f);
instance.Particles[idx].Orientation = Quaternion.Identity;
SetParticle(idx, reference, instance, ref transform, sparam, globaltime);
if (reference.Paired[0].Parent == null)
{
instance.Particles[idx].Position = VectorMath.Transform(
instance.Particles[idx].Position, transform);
var len = instance.Particles[idx].Normal.Length;
var nr = instance.Particles[idx].Normal.Normalized();
var transformed = (transform * new Vector4(nr, 0)).Xyz.Normalized();
instance.Particles[idx].Normal = transformed * len;
}
}
protected override void SetParticle(int idx, NodeReference reference, ParticleEffectInstance instance, ref Matrix4 transform, float sparam, float globaltime)
{
var r_min = MinRadius.GetValue(sparam, 0);
var r_max = MaxRadius.GetValue(sparam, 0);
var radius = instance.Random.NextFloat(r_min, r_max);
float s_min = MathHelper.DegreesToRadians(MinSpread.GetValue(sparam, 0));
float s_max = MathHelper.DegreesToRadians(MaxSpread.GetValue(sparam, 0));
var n = RandomInCone(instance.Random, s_min, s_max);
Vector3 translate;
Quaternion rotate;
if (DoTransform(reference, sparam, globaltime, out translate, out rotate))
{
n = rotate * n;
}
var p = n * radius + translate;
n *= Pressure.GetValue(sparam, 0);
instance.Particles[idx].Position = p;
instance.Particles[idx].Normal = n;
}
protected void HandleTexture(
ResourceManager res,
float globaltime,
float sparam,
ref Particle particle,
out Texture2D tex2d,
out Vector2 tl,
out Vector2 tr,
out Vector2 bl,
out Vector2 br
)
{
//Initial texcoords
tl = new Vector2(0, 0);
tr = new Vector2(1, 0);
bl = new Vector2(0, 1);
br = new Vector2(1, 1);
if (Texture == null)
{
tex2d = res.NullTexture;
return;
}
//Get the Texture2D
if (_tex == null && _frame == null && _tex2D != null)
{
if (_tex2D == null || _tex2D.IsDisposed)
{
_tex2D = res.FindTexture(Texture) as Texture2D;
}
tex2d = _tex2D;
}
else if (_tex == null)
{
if (res.TryGetShape(Texture, out _tex))
{
_tex2D = (Texture2D)res.FindTexture(_tex.Texture);
}
else if (res.TryGetFrameAnimation(Texture, out _frame))
{
_tex2D = res.FindTexture(Texture + "_0") as Texture2D;
}
else
{
_tex2D = res.FindTexture(Texture) as Texture2D;
}
}
if (_tex2D == null || _tex2D.IsDisposed)
{
if (_frame == null)
{
_tex2D = res.FindTexture(_tex == null ? Texture : _tex.Texture) as Texture2D;
}
else
{
_tex2D = res.FindTexture(Texture + "_0") as Texture2D;
}
}
tex2d = _tex2D;
if (tex2d == null)
{
tex2d = (Texture2D)res.FindTexture(ResourceManager.WhiteTextureName);
}
//Shape?
if (_tex != null)
{
tl = new Vector2(_tex.Dimensions.X, _tex.Dimensions.Y);
tr = new Vector2(_tex.Dimensions.X + _tex.Dimensions.Width, _tex.Dimensions.Y);
bl = new Vector2(_tex.Dimensions.X, _tex.Dimensions.Y + _tex.Dimensions.Height);
br = new Vector2(_tex.Dimensions.X + _tex.Dimensions.Width, _tex.Dimensions.Y + _tex.Dimensions.Height);
}
else if (_frame != null)
{
float frame = 0;
if (UseCommonAnimation)
{
frame = CommonAnimation.GetValue(sparam, globaltime);
}
else
{
frame = Animation.GetValue(sparam, particle.TimeAlive / particle.LifeSpan);
}
frame = MathHelper.Clamp(frame, 0, 1);
var frameNo = (int)Math.Floor(frame / _frame.FrameCount);
var rect = _frame.Frames[frameNo];
tl = new Vector2(rect.X, rect.Y);
tr = new Vector2(rect.X + rect.Width, rect.Y);
bl = new Vector2(rect.X, rect.Y + rect.Height);
br = new Vector2(rect.X + rect.Width, rect.Y + rect.Height);
}
//Flip
if (FlipHorizontal)
{
tl.X = 1 - tl.X;
tr.X = 1 - tl.X;
bl.X = 1 - bl.X;
br.X = 1 - br.X;
}
if (FlipVertical)
{
tl.Y = 1 - tl.Y;
tr.Y = 1 - tr.Y;
bl.Y = 1 - bl.Y;
br.Y = 1 - br.Y;
}
}
public override void Update(NodeReference reference, ParticleEffectInstance instance, double delta, ref Matrix4x4 transform, float sparam)
{
if (reference.Paired.Count == 0)
{
return;
}
if (NodeLifeSpan < instance.GlobalTime)
{
return;
}
//if (reference.Paired[0].Node.NodeLifeSpan < instance.GlobalTime) return;
var maxCount = MaxParticles == null ? int.MaxValue : (int)Math.Ceiling(MaxParticles.GetValue(sparam, (float)instance.GlobalTime));
var freq = Frequency == null ? 0f : Frequency.GetValue(sparam, (float)instance.GlobalTime);
var spawnMs = freq <= 0 ? 0 : 1 / (double)freq;
int j = 0;
var count = instance.ParticleCounts[reference.EmitterIndex];
if (spawnMs > 0)
{
if (instance.SpawnTimers[reference.EmitterIndex] > spawnMs)
{
instance.SpawnTimers[reference.EmitterIndex] = spawnMs;
}
//Spawn lots of particles
var dt = Math.Min(delta, 1); //don't go crazy during debug pauses
while (true)
{
if (instance.SpawnTimers[reference.EmitterIndex] < dt)
{
dt -= instance.SpawnTimers[reference.EmitterIndex];
instance.SpawnTimers[reference.EmitterIndex] = spawnMs;
}
else
{
instance.SpawnTimers[reference.EmitterIndex] -= dt;
break;
}
if (count < maxCount)
{
var idx = instance.GetNextFreeParticle();
if (idx == -1)
{
return;
}
j++;
SpawnParticle(idx, reference, instance, ref transform, sparam, (float)instance.GlobalTime);
var app = (FxAppearance)reference.Paired[0].Node;
app.OnParticleSpawned(idx, instance.Pool.Particles[idx].Appearance, instance);
//Simulate time already alive (TODO fix the time loop properly)
instance.Pool.Particles[idx].TimeAlive = (float)dt;
instance.Pool.Particles[idx].Position += instance.Pool.Particles[idx].Normal * (float)dt;
count++;
}
}
}
else
{
instance.SpawnTimers[reference.EmitterIndex] = 0;
}
instance.ParticleCounts[reference.EmitterIndex] = count;
}
protected void HandleTexture(
ResourceManager res,
float globaltime,
float sparam,
ref Particle particle,
out Texture2D tex2d,
out Vector2 tl,
out Vector2 tr,
out Vector2 bl,
out Vector2 br
)
{
//Initial texcoords
tl = new Vector2(0, 0);
tr = new Vector2(1, 0);
bl = new Vector2(0, 1);
br = new Vector2(1, 1);
//Get texture
GetTexture2D(res, out tex2d);
//Shape?
if (_tex != null)
{
tl = new Vector2(_tex.Dimensions.X, _tex.Dimensions.Y);
tr = new Vector2(_tex.Dimensions.X + _tex.Dimensions.Width, _tex.Dimensions.Y);
bl = new Vector2(_tex.Dimensions.X, _tex.Dimensions.Y + _tex.Dimensions.Height);
br = new Vector2(_tex.Dimensions.X + _tex.Dimensions.Width, _tex.Dimensions.Y + _tex.Dimensions.Height);
}
else if (_frame != null)
{
float frame = 0;
if (UseCommonAnimation)
{
frame = CommonAnimation.GetValue(sparam, globaltime);
}
else
{
frame = Animation.GetValue(sparam, particle.TimeAlive / particle.LifeSpan);
}
frame = MathHelper.Clamp(frame, 0, 1);
var frameNo = (int)Math.Floor(frame / _frame.FrameCount);
var rect = _frame.Frames[frameNo];
tl = new Vector2(rect.X, rect.Y);
tr = new Vector2(rect.X + rect.Width, rect.Y);
bl = new Vector2(rect.X, rect.Y + rect.Height);
br = new Vector2(rect.X + rect.Width, rect.Y + rect.Height);
}
//Flip
if (FlipHorizontal)
{
tl.X = 1 - tl.X;
tr.X = 1 - tl.X;
bl.X = 1 - bl.X;
br.X = 1 - br.X;
}
if (FlipVertical)
{
tl.Y = 1 - tl.Y;
tr.Y = 1 - tr.Y;
bl.Y = 1 - bl.Y;
br.Y = 1 - br.Y;
}
}