public void Update(GameTime gameTime)
{
SecondsBeforeExplosion -= gameTime.ElapsedGameTime.TotalSeconds;
if (SecondsBeforeExplosion <= 0)
{
Owner.Remove(this);
SimpleLinearExplosion ExplosionUp = new SimpleLinearExplosion(Owner, CollisionBox.Position, new Vector2(0f, -1f));
SimpleLinearExplosion ExplosionDown = new SimpleLinearExplosion(Owner, CollisionBox.Position, new Vector2(0f, 1f));
SimpleLinearExplosion ExplosionLeft = new SimpleLinearExplosion(Owner, CollisionBox.Position, new Vector2(-1f, 0f));
SimpleLinearExplosion ExplosionRight = new SimpleLinearExplosion(Owner, CollisionBox.Position, new Vector2(1f, 0f));
Owner.Add(ExplosionUp);
Owner.Add(ExplosionDown);
Owner.Add(ExplosionLeft);
Owner.Add(ExplosionRight);
}
}
public void DropBomb()
{
Owner.Add(new Bomb(Owner, Position));
}
private void OnCollision(WorldObject Other, PolygonCollisionResult FinalCollisionResult, Polygon FinalBombPolygon, Polygon FinalWorldPolygon)
{
float DirectionAngle = (float)Math.Atan2(Speed.Y, Speed.X);
float WallMinAngle = DirectionAngle - MathHelper.PiOver4;
float WallMaxAngle = DirectionAngle + MathHelper.PiOver4;
Vector2 WallAxis = new Vector2(-FinalCollisionResult.Axis.Y, FinalCollisionResult.Axis.X);
double FinalCollisionResultAngle = Math.Atan2(WallAxis.X, WallAxis.Y);
Vector2 MovementCorection = FinalCollisionResult.Axis * FinalCollisionResult.Distance;
Vector2 FinalMovement = Speed + MovementCorection;
//Ground detection
if (FinalCollisionResultAngle >= WallMinAngle && FinalCollisionResultAngle <= WallMaxAngle)
{
Speed.X = 0;
Speed.Y = 0;
Move(FinalMovement);
}
//Slope
else
{
if (FinalWorldPolygon.PolygonCollisionPerTriangle(ForwardLeftVector.X + FinalMovement.X, ForwardLeftVector.Y + FinalMovement.Y))
{
Vector2 PerpendicularAxis = BackLeftVector - ForwardLeftVector;
PerpendicularAxis = new Vector2(-PerpendicularAxis.Y, PerpendicularAxis.X);
PerpendicularAxis.Normalize();
Vector2 CollisionLineAxis;
Vector2 LeftCollisionPoint = Polygon.GetCollisionPointFromLine(BackLeftVector, ForwardLeftVector, Speed, FinalWorldPolygon, out CollisionLineAxis);
Move(LeftCollisionPoint - ForwardLeftVector);
//Collision on the left, the collision axis should divert to the right
if (Vector2.Dot(PerpendicularAxis, CollisionLineAxis) < 0)
{
double WallAngle = Math.Atan2(CollisionLineAxis.Y, CollisionLineAxis.X);
Vector2 WallPerpendicularAxis = new Vector2(-CollisionLineAxis.Y, CollisionLineAxis.X);
WallPerpendicularAxis.Normalize();
double WallPerpendicularAngle = Math.Atan2(WallPerpendicularAxis.Y, WallPerpendicularAxis.X);
Vector2 NewExplosionForwardLeftVector = ForwardLeftVector;
Vector2 NewExplosionForwardRightVector = NewExplosionForwardLeftVector + new Vector2((float)Math.Cos(WallPerpendicularAngle) * Size, (float)Math.Sin(WallPerpendicularAngle) * Size);
SimpleLinearExplosion FollowingExplosion = new SimpleLinearExplosion(Owner, NewExplosionForwardLeftVector + (NewExplosionForwardRightVector - NewExplosionForwardLeftVector) / 2,
new Vector2((float)Math.Cos(WallAngle) * 3, (float)Math.Sin(WallAngle) * 3));
Owner.Add(FollowingExplosion);
}
}
else if (FinalWorldPolygon.PolygonCollisionPerTriangle(ForwardRightVector.X + FinalMovement.X, ForwardRightVector.Y + FinalMovement.Y))
{
Vector2 PerpendicularAxis = BackRightVector - ForwardRightVector;
PerpendicularAxis = new Vector2(-PerpendicularAxis.Y, PerpendicularAxis.X);
PerpendicularAxis.Normalize();
Vector2 CollisionLineAxis;
Vector2 RightCollisionPoint = Polygon.GetCollisionPointFromLine(BackRightVector, ForwardRightVector, Speed, FinalWorldPolygon, out CollisionLineAxis);
Move(RightCollisionPoint - ForwardRightVector);
//Collision on the right, the collision axis should divert to the left
if (Vector2.Dot(PerpendicularAxis, CollisionLineAxis) < 0)
{
}
}
else
{
//Will happen if the collision is on a corner, consider it as a wall.
}
}
}
