C# Class SGDE.Physics.Collision.CollisionChief

The central class to compare collisions and determine if they actually collide or not.

Public Methods

Method	Description
AddCollisionUnit ( CollisionUnit unit ) : void	Add a new CollisionUnit to the CollisionChief.
DrawCollisionGrid ( SpriteBatch spriteBatch, Microsoft.Xna.Framework.Graphics.Texture2D gridTexture ) : void	Helper function for debugging. Draws the collision units in the location of a collision cell on the collision grid.
GetInstance ( ) : CollisionChief	Get the CollisionChief singleton.
Initialize ( Vector2 worldSize, Vector2 cellSize ) : void	Initialize the CollisionChief.
RemoveCollisionUnit ( CollisionUnit unit ) : void	Remove a CollisionUnit from the CollisionChief.
RotateCollisionUnit ( CollisionUnit unit, float rotation ) : void	Rotate a CollisionUnit by the given amount.
ScaleCollisionUnit ( CollisionUnit unit, Vector2 scale ) : void	Scale a CollisionUnit by the given amount.
TranslateCollisionUnit ( CollisionUnit unit, Vector2 translation ) : void	Translate a CollisionUnit by the given amount.
Update ( ) : void	Update the CollisionChief.
UpdateUnit ( CollisionUnit unit ) : void	Add a specific CollisionUnit to a queue of units to update.

Method	Description
CalculateCellPosition ( Vector2 position ) : Point
CalculateCircleBottomRightCell ( Vector2 circleCenter, int circleRadius ) : Point
CalculateCircleTopLeftCell ( Vector2 circleCenter, int circleRadius ) : Point
CollisionChief ( ) : System
NotifyEntities ( List entities ) : void
UpdateCollisions ( List entities ) : void

Add a new CollisionUnit to the CollisionChief.

public AddCollisionUnit ( CollisionUnit unit ) : void
unit	CollisionUnit	The CollisionUnit to add to the CollisionChief.
return	void

Helper function for debugging. Draws the collision units in the location of a collision cell on the collision grid.

public DrawCollisionGrid ( SpriteBatch spriteBatch, Microsoft.Xna.Framework.Graphics.Texture2D gridTexture ) : void
spriteBatch	Microsoft.Xna.Framework.Graphics.SpriteBatch	The SpriteBatch used to draw the grid.
gridTexture	Microsoft.Xna.Framework.Graphics.Texture2D	A texture representing one cell in the collision grid.
return	void

Get the CollisionChief singleton.

public static GetInstance ( ) : CollisionChief
return	CollisionChief

Initialize the CollisionChief.

public Initialize ( Vector2 worldSize, Vector2 cellSize ) : void
worldSize	Vector2	The size, in pixels, of the map. This defines the size of the collision grid.
cellSize	Vector2	The size, in pixels, of a single cell in the collision grid.
return	void

Remove a CollisionUnit from the CollisionChief.

public RemoveCollisionUnit ( CollisionUnit unit ) : void
unit	CollisionUnit	The CollisionUnit to remove.
return	void

Rotate a CollisionUnit by the given amount.

public RotateCollisionUnit ( CollisionUnit unit, float rotation ) : void
unit	CollisionUnit	The CollisionUnit to rotate.
rotation	float	The delta rotation to perform on the CollisionUnit (in radians).
return	void

Scale a CollisionUnit by the given amount.

public ScaleCollisionUnit ( CollisionUnit unit, Vector2 scale ) : void
unit	CollisionUnit	The CollisionUnit to scale.
scale	Vector2	The delta scale to perform on the CollisionUnit.
return	void

Translate a CollisionUnit by the given amount.

public TranslateCollisionUnit ( CollisionUnit unit, Vector2 translation ) : void
unit	CollisionUnit	The CollisionUnit to translate.
translation	Vector2	The delta translation to perform on the CollisionUnit.
return	void

Update the CollisionChief.

public Update ( ) : void
return	void

Add a specific CollisionUnit to a queue of units to update.

public UpdateUnit ( CollisionUnit unit ) : void
unit	CollisionUnit	The CollisionUnit to get updated.
return	void