add: |
- ( Sprite *) add: (Sprite *) newone;
Adds a sprite, newone, to the sprite list, and returns it.
addDeleted: |
- ( Sprite *) addDeleted: (Sprite *) newone;
Adds a sprite, newone, to the list of sprites to be deleted. Sprites are deleted on every frame update if there are any in the list.
clock |
- ( unsigned int ) clock;
Returns the number of milliseconds between the application start and the last frame update. This value is updated by -step once per frame update.
delete: |
- ( Sprite *) delete: (Sprite *) oldone;
Removes a sprite, oldone, from the sprite list, and adds it to the deleted list. Returns the sprite.
destroyImage: |
- ( void ) destroyImage: (SpriteImage *) si;
Releases resources associated with the SpriteImage structure si, which should have been created with -loadPPMFile:toImage:, or another method which creates SpriteImages. Does not release the structure itself.
first |
- ( Sprite *) first;
Returns the SpriteApp's first sprite.
free |
- free;
Deallocates memory associated with this SpriteApp.
freeClients |
- ( void ) freeClients;
Frees all sprites in the sprite list.
freeDeleted |
- ( void ) freeDeleted;
Frees all sprites in the deleted list. Called once per frame update.
initWithTitle:width:height: |
- ( id ) initWithTitle: (char *) t width: (unsigned int ) w height: (unsigned int ) h;
Initialises the SpriteApp and creates a display surface for it of size (w,h) with window title t. In a window system, creates a window for the SpriteApp.
keyDown: |
- ( void ) keyDown: (int ) aKey;
Key press handler. Code of key pressed is aKey (it is an ASCII code, or one of the SC_Key values in SpriteApp.h). Subclasses may override to customise this behavior.
keyUp: |
- ( void ) keyUp: (int ) aKey;
Key release handler. Code of key released is aKey (it is an ASCII code, or one of the SC_Key values in SpriteApp.h). Subclasses may override to customise this behavior.
last |
- ( Sprite *) last;
Returns the SpriteApp's last sprite.
loadPPMFile:toImage: |
- ( int ) loadPPMFile: (char *) fn toImage: (SpriteImage *) si;
Loads a PPM file for use in this SpriteApp (or sprites associated with it). Fills the SpriteImage struct pointed to by si with an image from the PPM/PNM file whose name is in fn.
mouseMoveX:Y: |
- ( void ) mouseMoveX: (int ) x Y: (int ) y;
Mouse motion handler. Mouse position is (x,y). Note: Mouse buttons are keys and handled by -keyDown: and -keyUp:. Subclasses may override to customise this behavior.
place:behind: |
- ( Sprite *) place: (Sprite *) aSprite behind: (Sprite *) anotherSprite;
Removes a sprite, aSprite, from the sprite list, and reinserts it behind
anotherSprite. List order implies Z order. If anotherSprite is nil, adds the
sprite to the end of the list, making it drawn last.
Returns aSprite.
remove: |
- ( Sprite *) remove: (Sprite *) oldone;
Removes a sprite, oldone, from the sprite list, and returns it.
step |
- ( void ) step;
Frame update function. Draws background, moves and renders sprites onto backbuffer, checks for and handles pending events. Should be called in a loop.
(Last Updated 7/27/2005)