public Particle()
{
pointSprite = new ParticleVertex();
pointSprite.Position = new Vector3(0, 0, 0);
pointSprite.PointSize = 1.0f;
pointSprite.Color = DEFAULT_COLOR.ToArgb();
}
public Particle()
{
pointSprite = new ParticleVertex();
pointSprite.Position = new Vector3(0, 0, 0);
pointSprite.PointSize = 1.0f;
pointSprite.Color = DEFAULT_COLOR.ToArgb();
}
/// <summary>
/// Adds random particle at specified position
/// </summary>
/// <param name="p"></param>
public void AddParticle( Vector2 pos, Vector2 vel, float lifeTime, float size0, float size1, float colorBoost = 1 )
{
if (injectionCount>=MaxInjectingParticles) {
Log.Warning("Too much injected particles per frame");
//injectionCount = 0;
return;
}
//Log.LogMessage("...particle added");
var v = vel + RadialRandomVector() * 5;
var a = Vector2.UnitY * 10 - v * 0.2f;
var r = rand.NextFloat( -MathUtil.Pi, MathUtil.Pi );
var s = (rand.NextFloat(0,1)>0.5f) ? -1 : 1;
var p = new ParticleVertex () {
Position = new Vector4(pos,0,1),
VelAccel = new Vector4(v.X, v.Y, a.X, a.Y ),
Color0 = Color4.Zero,
Color1 = rand.NextColor4() * colorBoost,
SizeAngle = new Vector4( size0, size1, r, r + 2*s ),
Timing = new Vector4( rand.NextFloat(lifeTime/7, lifeTime), 0, 0.01f, 0.01f ),
};
injectionBufferCPU[ injectionCount ] = p;
injectionCount ++;
}
/// <summary>
/// Adds random particle at specified position
/// </summary>
/// <param name="p"></param>
public void AddParticle(Vector2 pos, Vector2 vel, float lifeTime, float size0, float size1, float colorBoost = 1)
{
if (injectionCount >= MaxInjectingParticles)
{
Log.Warning("Too much injected particles per frame");
//injectionCount = 0;
return;
}
//Log.LogMessage("...particle added");
var v = vel + RadialRandomVector() * 5;
var a = Vector2.UnitY * 10 - v * 0.2f;
var r = rand.NextFloat(-MathUtil.Pi, MathUtil.Pi);
var s = (rand.NextFloat(0, 1) > 0.5f) ? -1 : 1;
var p = new ParticleVertex()
{
Position = new Vector4(pos, 0, 1),
VelAccel = new Vector4(v.X, v.Y, a.X, a.Y),
Color0 = Color4.Zero,
Color1 = rand.NextColor4() * colorBoost,
SizeAngle = new Vector4(size0, size1, r, r + 2 * s),
Timing = new Vector4(rand.NextFloat(lifeTime / 7, lifeTime), 0, 0.01f, 0.01f),
};
injectionBufferCPU[injectionCount] = p;
injectionCount++;
}
public override void Initialize()
{
base.Initialize();
// Partikel-Vertices und Indices anlegen
particles = new ParticleVertex[maxParticles * 4];
indices = new ushort[maxParticles * 6];
// Vertices und Indices initialisieren
for (int i = 0; i < maxParticles; i++)
{
particles[i * 4 + 0] = new ParticleVertex(new Vector2(0, 0));
particles[i * 4 + 1] = new ParticleVertex(new Vector2(1, 0));
particles[i * 4 + 2] = new ParticleVertex(new Vector2(1, 1));
particles[i * 4 + 3] = new ParticleVertex(new Vector2(0, 1));
indices[i * 6 + 0] = (ushort)(i * 4 + 0);
indices[i * 6 + 1] = (ushort)(i * 4 + 1);
indices[i * 6 + 2] = (ushort)(i * 4 + 2);
indices[i * 6 + 3] = (ushort)(i * 4 + 2);
indices[i * 6 + 4] = (ushort)(i * 4 + 3);
indices[i * 6 + 5] = (ushort)(i * 4 + 0);
}
// Vertex- und IndexBuffer anlegen
indexBuffer = new IndexBuffer(GraphicsDevice, typeof(ushort), indices.Length, BufferUsage.WriteOnly);
vertexBuffer = new DynamicVertexBuffer(GraphicsDevice, typeof(ParticleVertex), particles.Length, BufferUsage.WriteOnly);
// Indices in den Buffer kopieren
indexBuffer.SetData(indices);
}
public void CreateRenderData()
{
//Bart,bart,bart toch *6!!
for (int i = 0; i < particles.Length * 6; i += 6)
{
Vector2 uv = getUVFromIndex(i / 6);
renderData[i] = new ParticleVertex(uv, new Vector2(-0.5f, -0.5f));
renderData[i + 1] = new ParticleVertex(uv, new Vector2(0.5f, -0.5f));
renderData[i + 2] = new ParticleVertex(uv, new Vector2(0.5f, 0.5f));
renderData[i + 3] = new ParticleVertex(uv, new Vector2(-0.5f, -0.5f));
renderData[i + 4] = new ParticleVertex(uv, new Vector2(0.5f, 0.5f));
renderData[i + 5] = new ParticleVertex(uv, new Vector2(-0.5f, 0.5f));
}
}
void CreateQuad(ref int count, Vector3 position, Vector2 size, Color4 color, float angle, ParticleTexture texture, float frame, Vector3 src_right, Vector3 src_up)
{
var sz1 = new Vector3(size.X * -0.5f, size.Y * -0.5f, angle);
var sz2 = new Vector3(size.X * 0.5f, size.Y * -0.5f, angle);
var sz3 = new Vector3(size.X * -0.5f, size.Y * 0.5f, angle);
var sz4 = new Vector3(size.X * 0.5f, size.Y * 0.5f, angle);
var frameNo = (int)Math.Floor((texture.FrameCount - 1) * frame);
int i = frameNo * 4;
vertices[count++] = new ParticleVertex()
{
Position = position,
Color = color,
TextureCoordinate = texture.Coordinates[i + 2],
Dimensions = sz1,
Right = src_right,
Up = src_up
};
vertices[count++] = new ParticleVertex()
{
Position = position,
Color = color,
TextureCoordinate = texture.Coordinates[i],
Dimensions = sz2,
Right = src_right,
Up = src_up
};
vertices[count++] = new ParticleVertex()
{
Position = position,
Color = color,
TextureCoordinate = texture.Coordinates[i + 3],
Dimensions = sz3,
Right = src_right,
Up = src_up
};
vertices[count++] = new ParticleVertex()
{
Position = position,
Color = color,
TextureCoordinate = texture.Coordinates[i + 1],
Dimensions = sz4,
Right = src_right,
Up = src_up
};
}
void CreateQuad(ref int count, Vector3 position, Vector2 size, Color4 color, float angle, Vector2 topleft, Vector2 topright, Vector2 bottomleft, Vector2 bottomright, Vector3 src_right, Vector3 src_up)
{
var sz1 = new Vector3(size.X * -0.5f, size.Y * -0.5f, angle);
var sz2 = new Vector3(size.X * 0.5f, size.Y * -0.5f, angle);
var sz3 = new Vector3(size.X * -0.5f, size.Y * 0.5f, angle);
var sz4 = new Vector3(size.X * 0.5f, size.Y * 0.5f, angle);
vertices[count++] = new ParticleVertex()
{
Position = position,
Color = color,
TextureCoordinate = bottomleft,
Dimensions = sz1,
Right = src_right,
Up = src_up
};
vertices[count++] = new ParticleVertex()
{
Position = position,
Color = color,
TextureCoordinate = topleft,
Dimensions = sz2,
Right = src_right,
Up = src_up
};
vertices[count++] = new ParticleVertex()
{
Position = position,
Color = color,
TextureCoordinate = bottomright,
Dimensions = sz3,
Right = src_right,
Up = src_up
};
vertices[count++] = new ParticleVertex()
{
Position = position,
Color = color,
TextureCoordinate = topright,
Dimensions = sz4,
Right = src_right,
Up = src_up
};
}
private void InitParticles()
{
IsTransparent = true;
_nbQuads = _particlesBuffer.Length;
for (int i = 0; i < _particlesBuffer.Length; i++)
{
_particlesBuffer[i].Life = -1;
_particlesBuffer[i].InvMass = 1f;
_particlesBuffer[i].Mass = 1f;
_particlesBuffer[i].Color = 0xFFFFFFFF;
_particlesBuffer[i].Alpha = 0;
}
float size = 1;
_quads = new ParticleVertex[_nbQuads * 4];
_vd = VertexDescriptor.GetDescriptor <ParticleVertex>();
short[] indices = new short[_nbQuads * 6];;
for (int i = 0; i < _nbQuads; i++)
{
// P0----P1
// | / |
// | / |
// P3----P2
_quads[4 * i] = new ParticleVertex(-0.5f * size, 0.5f * size, 0, 0, 0); //P0
_quads[4 * i + 1] = new ParticleVertex(0.5f * size, 0.5f * size, 0, 1, 0); //P1
_quads[4 * i + 2] = new ParticleVertex(-0.5f * size, -0.5f * size, 0, 0, 1); //P3
_quads[4 * i + 3] = new ParticleVertex(0.5f * size, -0.5f * size, 0, 1, 1); //P2
indices[6 * i] = (short)(4 * i);
indices[6 * i + 1] = (short)(4 * i + 1);
indices[6 * i + 2] = (short)(4 * i + 2);
indices[6 * i + 3] = (short)(4 * i + 2);
indices[6 * i + 4] = (short)(4 * i + 1);
indices[6 * i + 5] = (short)(4 * i + 3);
}
_vb = GraphicDeviceFactory.Device.CreateVertexBuffer(ResourceUsage.Dynamic, CpuAccessFlags.Write, data: _quads);
_ib = GraphicDeviceFactory.Device.CreateIndexBuffer(data: indices);
}
private void BuildVertexBuffer()
{
//
// Create the buffer to kick-off the particle system.
//
var vbd = new BufferDescription
{
Usage = ResourceUsage.Default,
SizeInBytes = Marshal.SizeOf(typeof(ParticleVertex)) * 1,
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None
};
// The initial particle emitter has type 0 and age 0. The rest
// of the particle attributes do not apply to an emitter.
var p = new ParticleVertex
{
Type = 0,
Age = 0.0f
};
using (var ds = new DataStream(Marshal.SizeOf(p), true, true))
{
ds.Write(p);
ds.Position = 0;
_initVB = new Buffer(_dxDevice, ds, vbd);
}
//
// Create the ping-pong buffers for stream-out and drawing.
//
vbd.SizeInBytes = Marshal.SizeOf(typeof(ParticleVertex)) * _maxParticles;
vbd.BindFlags = BindFlags.VertexBuffer | BindFlags.StreamOutput;
_drawVB = new Buffer(_dxDevice, vbd);
_streamOutVB = new Buffer(_dxDevice, vbd);
}
public void WriteParticleVertex(ParticleVertex v)
{
}
public void WriteParticleVertex(ParticleVertex v)
{
throw new NotImplementedException();
}
public void WriteParticleVertex(ParticleVertex v)
{
}
