我正在制作一个让敌人射击东西的 cocos2d 应用程序。很多时候，当一个精灵被编程为在其队友被杀后移动到一个随机位置时，它会直接进入其他同类敌人的交火中。我如何制作一些东西来检查它是否在移动，因为大多数时候，游戏看起来就像是敌人试图自杀。我希望敌人能够自己，但不是在他们移动时。
-(void)enemy2{
enemy2 = [CCSprite spriteWithFile:@"enemy2.png"];
int d = arc4random()%480+480;
int o = arc4random()%320+320;
x = arc4random()%480;
if( x <= 480 && x>= 460){
x=x-100;
}
if(x <= 100){
x = x+50;
}
y = arc4random()%320;
if(y <=320 && y >= 290){
y = y-100;
}
if(y < 100){
y = y + 100;
}
enemy2.position = ccp(o,d);
xc = x;
te = y;
[enemytwo addObject :enemy2];
[self addChild:enemy2];
for(CCSprite *enetw in enemytwo){
CCRotateBy *rotation = [CCRotateBy actionWithDuration:15 angle:1080];
CCRepeatForever * repeatforever = [CCRepeatForever actionWithAction:rotation];
int f = arc4random()%480;
int s = arc4random()%320;
if( f <= 480 && s>= 460){
f=f-100;
}
if(f <= 100){
f = f+50;
}
s = arc4random()%320;
if(s <=320 && s >= 290){
s = s-100;
}
if(s < 100){
s = s + 100;
}
CCMoveTo *move = [CCMoveTo actionWithDuration:0.8 position:ccp(f,s)];
[enetw runAction: repeatforever];
[enetw runAction:[CCSequence actions:move, nil]];
}
}
弹丸：
-(void)projectileShooting:(ccTime)dt {
[self schedule:@selector(projectileShooting:) interval:2.5];
projcount++;
if([proj count] <= 15 )
if(enemy1.position.y < 320){
v = ccp(player.position.x,player.position.y);
for(CCSprite *enemies in enemy){
CCSprite * projectilebullet = [CCSprite spriteWithFile:@"Projectile.png"];
[proj addObject:projectilebullet];
[self addChild:projectilebullet];
CGPoint MyVector = ccpSub(enemies.position,player.position );
MyVector = ccpNormalize(MyVector);
MyVector = ccpMult(MyVector, enemies.contentSize.width/2);
MyVector = ccpMult(MyVector,-1);
projectilebullet.position = ccpAdd(enemies.position, MyVector);
}
}
for(CCSprite *enem2 in enemytwo){
if( [proj count] <= 15){
CCSprite * projectilebull = [CCSprite spriteWithFile:@"Projectile.png"];
CGPoint MyVector = ccpSub(enem2.position,player.position );
MyVector = ccpNormalize(MyVector);
MyVector = ccpMult(MyVector, enem2.contentSize.width/2+10);
MyVector = ccpMult(MyVector,-1);
projectilebull.position = ccpAdd(enem2.position, MyVector);
[self addChild:projectilebull];
[proj addObject:projectilebull];
for(CCSprite *projectile in proj){
}
}
}
}
-(void)bulletMovement:(CCSprite *)bullet{
CGPoint location = ccpSub(bullet.position, player.position);
location = ccpNormalize(location);
location = ccpMult(location, -1);
bullet.position = ccpAdd(bullet.position, location);
}
碰撞（在敌人2部分）：
-(void)update{
deletehealth = [[NSMutableArray alloc] init];
enemytwodelete = [[NSMutableArray alloc]init];
enemythreedelete2 = [[NSMutableArray alloc]init];
NSMutableArray *playerdelete = [[NSMutableArray alloc] init];
NSMutableArray * deleteclean = [[NSMutableArray alloc]init ];
projectilesToDelete = [[NSMutableArray alloc] init];
enemydelete = [[NSMutableArray alloc]init];
for(CCSprite *projectile in proj)
{
CGRect project = CGRectMake(projectile.position.x - (projectile.contentSize.width/2),
projectile.position.y - (projectile.contentSize.height/2),
projectile.contentSize.width,
projectile.contentSize.height);
CGRect playerRect = CGRectMake(player.position.x - (player.contentSize.width/2),
player.position.y - (player.contentSize.height/2),
player.contentSize.width,
player.contentSize.height);
if (CGRectIntersectsRect(playerRect, project)) {
[projectilesToDelete addObject: projectile];
emitter = [[CCParticleExplosion alloc] init];
emitter.texture = [[CCTextureCache sharedTextureCache]addImage:@"particle.png"];
emitter.position = ccp(projectile.position.x,projectile
.position.y);
[self addChild:emitter];
// NSLog(@"%i",life);
if(life > 0){
//lifeholder = [[NSMutableArray alloc] init];
life -= 5;
[self.progressTimer setPercentage:life];
}else{
[playerdelete addObject:player];
emitter.position = ccp(projectile.position.x,projectile
.position.y);
[[CCDirector sharedDirector]replaceScene:[CCTransitionFade transitionWithDuration:3 scene:[end node]]];
}
}
for(CCSprite*enemies in enemy){
CGRect enemyRect = CGRectMake((enemies.position.x-5),
enemies.position.y-8.3,
7,
15);
if(CGRectIntersectsRect(enemyRect, project)){
enemyex = [[CCParticleExplosion alloc] init];
enemyex.texture = [[CCTextureCache sharedTextureCache]addImage:@"particle.png"];
enemyex.position = ccp(enemies.position.x, enemies.position.y);
[self addChild:enemyex];
[enemydelete addObject:enemies];
[projectilesToDelete addObject:projectile];
[self powerups];
[self clear];
}
}
for(CCSprite * enemies2 in enemytwo){
CGRect enemy2Rect = CGRectMake(enemies2 .position.x - (enemies2 .contentSize.width/2),
enemies2 .position.y - (enemies2 .contentSize.height/2),
enemies2 .contentSize.width,
enemies2.contentSize.height);
if(CGRectIntersectsRect(enemy2Rect, project)){
explode = [[CCParticleExplosion alloc] init];
explode .texture = [[CCTextureCache sharedTextureCache]addImage:@"particle.png"];
explode .position = ccp(enemies2.position.x, enemies2.position.y);
[self addChild:explode ];
[enemytwodelete addObject:enemies2];
[projectilesToDelete addObject:projectile];
[self powerups];
[self clear];
}
}