public void defineExplosion(Texture2D tex, int size)
{
// Create the explosion object
cExplosion e = new cExplosion();
e._data = new byte[tex.Width, tex.Height];
e._partVel = new Vector4[tex.Width, tex.Height];
// Grab the texture data
Color[] data = new Color[tex.Width * tex.Height];
tex.GetData <Color>(data);
// Init some vars
int x = 0;
int y = 0;
Vector2 diff = new Vector2();
Random r = new Random();
// Loop through each pixel
for (int i = 0; i < data.Length; i++)
{
diff = new Vector2(x - (size / 2), y - (size / 2));
float mag = diff.Length();
if (mag < 8)
{
mag = 8;
}
diff.Normalize();
diff.X *= (size / 2) / (mag * 0.6f);
diff.Y *= (size / 2) / (mag * 0.6f);
diff.Y += r.Next(-1 * size, 1 * size) / 100f;
diff.X += r.Next(-1 * size, 1 * size) / 100f;
e._partVel[x, y] = new Vector4(diff.X, diff.Y, 0, 0);
e._data[x, y] = data[i].A;
x++;
if (x >= tex.Width)
{
x = 0; y++;
}
}
_explosions.Add(size, e);
}
public void Explode(Vector2 where, Vector2 direction, int size)
{
if (!_explosions.ContainsKey(size))
{
return;
}
cExplosion e = _explosions[size];
byte[,] data = e._data;
// Move to the top left of the explosion
where.X -= size / 2;
where.Y -= size / 2;
int intX = (int)where.X;
int intY = (int)where.Y;
if (intX < 0 || intY < 0)
{
return;
}
int ex = 0;
int ey = 0;
_explosionAdded = true;
List <Vector2> positions = new List <Vector2>();
List <Vector2> velocities = new List <Vector2>();
List <Color> colors = new List <Color>();
Vector2 pos, vel;
int maxP = 50;
int part = maxP;
// Loop through all y values
for (int y = intY; y < intY + size - 1; y++)
{
// If its outside the collision area then we go no further
if (y >= _destructableData.GetLength(1) - 1)
{
break;
}
ex = 0;
// Loop through all the y values
for (int x = intX; x < intX + size - 1; x++)
{
// If its outside the y area go to the next x
if (x >= _destructableData.GetLength(0) - 1)
{
break;
}
if (data[ex, ey] != 0 && _destructableData[x, y].A != 0 && _indestructableData[x, y].A == 0)
{
if (part >= maxP)
{
part = 0;
Color vCol = _destructableData[x, y];
pos = new Vector2(x, y);
positions.Add(pos);
vel = new Vector2(e._partVel[ex, ey].X + direction.X, e._partVel[ex, ey].Y + direction.Y);
velocities.Add(vel);
colors.Add(vCol);
}
_destructableData[x, y] = new Color();
}
ex++;
part++;
}
ey++;
}
PrimalDevistation.Instance.PhysicsParticles.SpawnParticles(positions, velocities, colors);
}
