//closest colliding wall to a bomb within a bounding box
private float ClosestCollidingWallOrBlock(Bomb b, BoundingBox bB)
{
float max = (float)b.ExplosionLength;
float temp;
for (int i = 0; i < m_Walls.Count; i++)
{
if (bB.Intersects(m_Walls[i].BoundingBox))
{
temp = Vector3.Distance(b.Position, m_Walls[i].Position);
if (temp < max)
{
max = temp;
}
}
}
for (int i = 0; i < m_Blocks.Count; i++)
{
if (bB.Intersects(m_Blocks[i].BoundingBox))
{
temp = Vector3.Distance(b.Position, m_Blocks[i].Position);
if (temp < max)
{
max = temp;
}
}
}
return max;
}
/*Checks for objects within explosion range
*(dictated by the closest colliding wall to the bombs original explosion range)
*/
private List<GameEntity> ExplosionCollision(Bomb b, BoundingBox bB, float explosionLength)
{
List<GameEntity> affectedByExplosion = new List<GameEntity>();
float temp;
//does bomb hit player?
if (bB.Intersects(m_Player.BoundingSphere))
{
affectedByExplosion.Add(m_Player);
}
#region Blocks in explosion range
for (int i = 0; i < m_Blocks.Count; i++)
{
if (bB.Intersects(m_Blocks[i].BoundingBox))
{
temp = Vector3.Distance(b.Position, m_Blocks[i].Position);
if (temp <= explosionLength)
{
affectedByExplosion.Add(m_Blocks[i]);
}
}
}
#endregion
#region Agents in explosion range
for (int i = 0; i < m_Agents.Count; i++)
{
if (bB.Intersects(m_Agents[i].BoundingSphere))
{
temp = Vector3.Distance(b.Position, m_Agents[i].Position);
if (temp <= explosionLength)
{
affectedByExplosion.Add(m_Agents[i]);
}
}
}
#endregion
#region Bombs in explosion range
for (int i = 0; i < m_Bombs.Count; i++)
{
if (bB.Intersects(m_Bombs[i].BoundingSphere))
{
temp = Vector3.Distance(b.Position, m_Bombs[i].Position);
if (temp <= explosionLength)
{
affectedByExplosion.Add(m_Bombs[i]);
}
}
}
#endregion
return affectedByExplosion;
}
public List<GameEntity> explosion(Bomb b)
{
List<GameEntity> affectedByExplosion = new List<GameEntity>();
float x = b.Position.X;
float y = b.Position.Y;
float z = b.Position.Z;
float halfR = (float)(b.Radius*.5);
float explosionLength = (float)(b.ExplosionLength);
float tempLength = 0;
//add an explosion at bomb center, explosion cube ☼
m_Explosions.Add(b.Position);
BoundingBox up = BoundingBox.CreateFromPoints(new Vector3[8]
{
new Vector3(x+halfR,y,z),
new Vector3(x+halfR,y,z),
new Vector3(x-halfR,y,z),
new Vector3(x-halfR,y,z),
new Vector3(x+halfR,y,z+explosionLength),
new Vector3(x+halfR,y,z+explosionLength),
new Vector3(x-halfR,y,z+explosionLength),
new Vector3(x-halfR,y,z+explosionLength),
});
//this block and others like it do the following
//1. determine the farthest the explosion can go
//2. add that distance in referrence to the bombs to a list of positions to have an explosion model on
//3. calls a function that returns a list of objects affected by explosion to bigger list of those affected
tempLength = ClosestCollidingWallOrBlock(b, up);
m_Explosions.Add(b.Position + new Vector3(0,0,-tempLength));
affectedByExplosion.AddRange(ExplosionCollision(b, up, tempLength));
BoundingBox down = BoundingBox.CreateFromPoints(new Vector3[8]
{
new Vector3(x+halfR,y,z),
new Vector3(x+halfR,y,z),
new Vector3(x-halfR,y,z),
new Vector3(x-halfR,y,z),
new Vector3(x+halfR,y,z-explosionLength),
new Vector3(x+halfR,y,z-explosionLength),
new Vector3(x-halfR,y,z-explosionLength),
new Vector3(x-halfR,y,z-explosionLength),
});
tempLength = ClosestCollidingWallOrBlock(b, down);
m_Explosions.Add(b.Position + new Vector3(0,0,tempLength));
affectedByExplosion.AddRange(ExplosionCollision(b, down, tempLength));
BoundingBox left = BoundingBox.CreateFromPoints(new Vector3[8]
{
new Vector3(x,y,z+halfR),
new Vector3(x,y,z+halfR),
new Vector3(x,y,z-halfR),
new Vector3(x,y,z-halfR),
new Vector3(x-explosionLength,y,z+halfR),
new Vector3(x-explosionLength,y,z+halfR),
new Vector3(x-explosionLength,y,z-halfR),
new Vector3(x-explosionLength,y,z-halfR),
});
tempLength = ClosestCollidingWallOrBlock(b, left);
m_Explosions.Add(b.Position + new Vector3(-tempLength,0,0));
affectedByExplosion.AddRange(ExplosionCollision(b, left, tempLength));
BoundingBox right = BoundingBox.CreateFromPoints(new Vector3[8]
{
new Vector3(x,y,z+halfR),
new Vector3(x,y,z+halfR),
new Vector3(x,y,z-halfR),
new Vector3(x,y,z-halfR),
new Vector3(x+explosionLength,y,z+halfR),
new Vector3(x+explosionLength,y,z+halfR),
new Vector3(x+explosionLength,y,z-halfR),
new Vector3(x+explosionLength,y,z-halfR),
});
tempLength = ClosestCollidingWallOrBlock(b, right);
m_Explosions.Add(b.Position + new Vector3(tempLength,0,0));
affectedByExplosion.AddRange(ExplosionCollision(b, right, tempLength));
return affectedByExplosion;
//BoundingBox.CreateFromPoints();
}
