/// <summary>
/// checks for collision against all other tiles
/// </summary>
/// <param name="checkingTile">the tile making this check</param>
/// <param name="checkPos">the position to check at</param>
/// <param name="includeTypes">the valid types of tiles to check</param>
/// <returns>if there is a collision at the given position</returns>
public bool CheckTileCollision(GameTile checkingTile, Vector2 checkPos, params Type[] includeTypes)
{
Rectangle checkingRect = new Rectangle((int)checkingTile.Position.X, (int)checkingTile.Position.Y, (int)checkingTile.Sprite.Size.X, (int)checkingTile.Sprite.Size.Y);
for (int i = 0; i < GameTileList.Count; i++)
{
GameTile tile = GameTileList[i];
bool isValidTile = false;
for (int j = 0; j < includeTypes.Length; j++)
{
if (includeTypes[j] == tile.GetType())
{
isValidTile = true;
break;
}
}
if (!isValidTile || checkingTile == tile)
{
continue;
}
Rectangle targetRect = new Rectangle((int)tile.Position.X, (int)tile.Position.Y, (int)tile.Sprite.Size.X, (int)tile.Sprite.Size.Y);
if (PlatformerMath.RectangleInRectangle(checkingRect, targetRect))
{
return(true);
}
}
return(false);
}
/// <summary>
/// checks for a collision against a rectangle and all other objects of the given name
/// </summary>
/// <param name="collider">the rectangle to check</param>
/// <param name="name">the name of the object to check against</param>
/// <returns>the object we collide with</returns>
public GameObject FindCollision(Rectangle collider, string name)
{
for (int i = 0; i < GameObjectList.Count; i++)
{
GameObject obj = GameObjectList[i];
if (obj.GetType().IsEquivalentTo(PEngine.GetTypeFromName(name)))
{
Rectangle objRect = new Rectangle((obj.Position + obj.Sprite.Offset).ToPoint(), obj.Sprite.Size.ToPoint());//new Rectangle((int)obj.Position.X, (int)obj.Position.Y, (int)(obj.Sprite.Size.X, (int)obj.Sprite.Size.Y);
if (PlatformerMath.RectangleInRectangle(collider, objRect))
{
return(obj);
}
}
}
return(null);
}
/// <summary>
/// updates this game object
/// </summary>
public virtual void Update()
{
Touching = false;
if (Velocity.X != 0 || Velocity.Y != 0)
{
for (int i = 0; i < Room.GameObjectList.Count; i++)
{
GameObject obj = Room.GameObjectList[i];
if (obj.GetType().IsEquivalentTo(PEngine.GetTypeFromName("obj_block")))
{
//feel like there should be a better way to do collisions but idk that way
Rectangle targetRect = obj.GetHitbox();
targetRect.Location += obj.Position.ToPoint();
Rectangle fromRect = PlatformerMath.AddVectorToRect(GetHitbox(), Position, PlatformerMath.VectorCeil(new Vector2(0, Velocity.Y)));
while (PlatformerMath.RectangleInRectangle(fromRect, targetRect))
{
Touching = true;
if (Math.Abs(Velocity.Y) < CollisionPrecision)
{
Velocity.Y = 0;
break;
}
else
{
Velocity.Y -= Math.Sign(Velocity.Y) * CollisionPrecision;
fromRect = PlatformerMath.AddVectorToRect(GetHitbox(), Position, PlatformerMath.VectorCeil(new Vector2(0, Velocity.Y)));
}
}
fromRect = PlatformerMath.AddVectorToRect(GetHitbox(), Position, PlatformerMath.VectorCeil(new Vector2(Velocity.X, 0)));
while (PlatformerMath.RectangleInRectangle(fromRect, targetRect))
{
Touching = true;
if (Math.Abs(Velocity.X) < CollisionPrecision)
{
Velocity.X = 0;
break;
}
else
{
Velocity.X -= Math.Sign(Velocity.X) * CollisionPrecision;
fromRect = PlatformerMath.AddVectorToRect(GetHitbox(), Position, PlatformerMath.VectorCeil(new Vector2(Velocity.X, 0)));
}
}
fromRect = PlatformerMath.AddVectorToRect(GetHitbox(), Position, PlatformerMath.VectorCeil(Velocity));
while (PlatformerMath.RectangleInRectangle(fromRect, targetRect))
{
Touching = true;
if (Math.Abs(Velocity.X) < CollisionPrecision)
{
Velocity.X = 0;
break;
}
else
{
Velocity.X -= Math.Sign(Velocity.X) * CollisionPrecision;
}
if (Math.Abs(Velocity.Y) < CollisionPrecision)
{
Velocity.Y = 0;
break;
}
else
{
Velocity.Y -= Math.Sign(Velocity.Y) * CollisionPrecision;
}
fromRect = PlatformerMath.AddVectorToRect(GetHitbox(), Position, PlatformerMath.VectorCeil(Velocity));
}
}
}
}
Position += Velocity;
Sprite?.Update();
}
