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-
- #import <libc.h>
- #import "NXIBullet.h"
- #import "NXIGameBrain.h"
- #import "NXIPlayer.h"
-
-
- @implementation NXIBullet
-
- - init
- {
- id ret = [super init];
- renderedImage = [NXImage findImageNamed:"Bullet.tiff"];
- NX_HEIGHT(&boundingBox) = BULLET_WIDTH;
- NX_WIDTH(&boundingBox) = BULLET_HEIGHT;
- maxFrames[0] = BULLET_FRAMES;
- return ret;
- }
-
- - collidedWith:anActor // called when it is detected that we hit something
- {
- // ***** need to remove us from the stage if hit Player, base,
- // or one of the player's bullets
- return self;
- }
-
- - move:sender // move one frame
- {
- if (state == BULLET_INACTIVE) return self;
- GK_VECTOR_Y(&nextLocation) -= BULLET_DROP_SPEED;
- // all collisions are handles by collision detection machinery
- if (GK_VECTOR_Y(&nextLocation) <= -BULLET_HEIGHT) {
- // take bullet off of screen
- state = BULLET_INACTIVE;
- [self leaveTheStage];
- }
- return self;
- }
-
- @end
-