public void DebugDraw(float elapsedTime, Matrix worldMatrix)
{
Vector3 currentOffsetUntransformed, currentOffset;
Offset.GetInterpolatedValue <Vector3>(elapsedTime, out currentOffsetUntransformed);
Vector3.Transform(ref currentOffsetUntransformed, ref worldMatrix, out currentOffset);
float currentSize;
Size.GetInterpolatedValue <float>(elapsedTime, out currentSize);
switch (Type)
{
case MyParticleEmitterType.Point:
{
MyDebugDraw.DrawSphereWireframe(currentOffset, 0.1f, new Vector3(1, 1, 0), 1.0f);
}
break;
case MyParticleEmitterType.Line:
{
if (DirToCamera)
{
Vector3 dir = MyCamera.Position - currentOffset;
dir.Normalize();
Matrix matrix = Matrix.CreateScale(currentSize) * MyMath.MatrixFromDir(dir);
Vector3 currentOffsetScaled = Vector3.TransformNormal(Vector3.Forward, matrix);
MyDebugDraw.DrawLine3D(worldMatrix.Translation, worldMatrix.Translation + currentOffsetScaled, Color.Yellow, Color.Yellow);
}
else
{
Vector3 currentOffsetScaled = Vector3.Transform(Vector3.Up * currentSize, worldMatrix);
MyDebugDraw.DrawLine3D(worldMatrix.Translation, currentOffsetScaled, Color.Yellow, Color.Yellow);
}
}
break;
case MyParticleEmitterType.Sphere:
{
MyDebugDraw.DrawSphereWireframe(currentOffset, currentSize, new Vector3(1, 1, 0), 1.0f);
}
break;
case MyParticleEmitterType.Box:
{
Matrix matrix = Matrix.CreateScale(currentSize) * Matrix.CreateTranslation(currentOffsetUntransformed) * worldMatrix;
MyDebugDraw.DrawLowresBoxWireframe(matrix, new Vector3(1, 1, 0), 1.0f);
}
break;
case MyParticleEmitterType.Hemisphere:
{
Vector3 worldPos = currentOffset;
Matrix matrix;
if (DirToCamera)
{
Matrix WorldView = worldMatrix * MyCamera.ViewMatrix;
WorldView.Translation += currentOffsetUntransformed;
Matrix newWorld = WorldView * Matrix.Invert(MyCamera.ViewMatrix);
Vector3 dir = MyCamera.Position - newWorld.Translation;
dir.Normalize();
matrix = Matrix.CreateScale(currentSize) * Matrix.CreateRotationX(MathHelper.PiOver2) * MyMath.MatrixFromDir(dir);
matrix.Translation = newWorld.Translation;
}
else
{
matrix = Matrix.CreateScale(currentSize) * Matrix.CreateTranslation(currentOffsetUntransformed) * worldMatrix;
}
MyDebugDraw.DrawHemisphereWireframe(matrix, new Vector3(1, 1, 0), 1.0f);
}
break;
case MyParticleEmitterType.Circle:
{
//No debug draw
}
break;
default:
System.Diagnostics.Debug.Assert(false);
break;
}
}