protected void GridToParticle()
{
var sampler = new MacVectorGrid2DSampler();
for (var i = 0; i < this.CPUData.Length; ++i)
{
var pos = this.CPUData[i].position;
var vel = sampler.Sample(this.velocity, pos);
this.CPUData[i].velocity = vel;
}
}
protected void MoveParticle(float delta)
{
delta *= 50;
var sampler = new MacVectorGrid2DSampler();
for (var i = 0; i < this.CPUData.Length; ++i)
{
var pos = this.CPUData[i].position;
//var vel = this.velocity.Sample(pos);
var vel = this.CPUData[i].velocity;
var mid = pos + 0.5f * delta * vel;
mid.x = Mathf.Clamp(mid.x, 0, this.gridSize.x);
mid.y = Mathf.Clamp(mid.y, 0, this.gridSize.y);
vel = sampler.Sample(this.velocity, mid);
pos += delta * vel;
pos.x = Mathf.Clamp(pos.x, 0, this.gridSize.x);
pos.y = Mathf.Clamp(pos.y, 0, this.gridSize.y);
this.CPUData[i].position = pos;
}
}
