这是在GameViewController.m
中-(void)fillMutablePath{
CGPoint movePoint = CGPointFromString([pointsToFillArray objectAtIndex:0]);
CGPathMoveToPoint(fillPath, NULL, movePoint.x, movePoint.y);
for (int i=0; i<[pointsToFillArray count]; i++) {
CGPoint tempPoint = CGPointFromString([pointsToFillArray objectAtIndex:i]);
CGPathAddLineToPoint(fillPath, NULL, tempPoint.x, tempPoint.y);
CGContextAddPath(gameViewObj._myContext, fillPath);
CGContextFillPath(gameViewObj._myContext);
if(CGPathContainsPoint(fillPath, nil, "What goes here?", false)){
[self doDie];
}
else {
CGContextFillPath(gameViewObj._myContext);
}
CGPathRelease(fillPath);
[pointsToFillArray removeAllObjects];
}
}
这是在GameView.m
-(CGPoint) GetBirdPosition:(CGPoint) PtPoint :(int) BirdNumber{
CGPoint Temp=PtPoint;
BOOL isTouch=TRUE;
while (isTouch)
{
isTouch=FALSE;
if(playField[(int) Temp.x][(int) Temp.y]==2)
{
isTouch=TRUE;
if(playField[(int) Temp.x+1][(int) Temp.y] == 2 || playField[(int) Temp.x-1][(int) Temp.y] == 2)
{
pos[BirdNumber].y = -pos[BirdNumber].y;
Temp.y+=pos[BirdNumber].y;
}
else if(playField[(int) Temp.x][(int) Temp.y+1] == 2 || playField[(int) Temp.x][(int) Temp.y-1] == 2)
{
pos[BirdNumber].x = -pos[BirdNumber].x;
Temp.x+=pos[BirdNumber].x;
}
}
}
return Temp;
}
-(void)flyingBird:(NSTimer *)timer {
if(appDelegate.gameStateRunning == YES){
for (int i=0; i< [birdImageViewArray count];i++)
{
UIImageView* birdImageView=[birdImageViewArray objectAtIndex:i];
CGPoint Temp=CGPointMake(birdImageView.center.x + pos[i].x , birdImageView.center.y + pos[i].y);
birdImageView.center =[self GetBirdPosition:Temp:i];
if(playField[(int) birdImageView.center.x][(int) birdImageView.center.y]==3){
[[NSNotificationCenter defaultCenter] postNotificationName:@"LineCrossed" object:nil];
[[NSNotificationCenter defaultCenter] postNotificationName:@"PlayDieSound" object:nil];
}
}
}
}
我无法弄清楚在哪里写了“什么在这里”?我想要它,如果一只鸟被困在形状内,那么[doDie]就会发生。如果鸟没有被困在形状内,它就会被填满。任何想法都非常感激。
答案 0 :(得分:1)
我真的不了解你的代码,但我想这基本上就是你想做的事情:
CGPoint Temp=CGPointMake(birdImageView.center.x + pos[birdNum].x , birdImageView.center.y + pos[birdNum].y);
if(CGPathContainsPoint(fillPath, nil, [myGameView GetBirdPosition:Temp:i], false)){
[self doDie];
}
看起来你的路径最初只是一条线,我认为它不会被包含在内。如果你更彻底地解释目标(我们检查了多少只鸟?它们是否相同?)我们可以进一步帮助。
编辑:
嗯,好的。首先,这很简单。如果路径中有任何鸟类,为了防止填充,请不要使用其他情况。在if中,如果当前鸟包含在路径中,则设置一个标志。然后在循环之后,如果未设置标志,则填充路径。如下所示:BOOL pathContainsBird = NO;
for (int i=0; i<[pointsToFillArray count]; i++) {
//bunch of stuff
if(CGPathContainsPoint(fillPath, nil, "What goes here?", false)){
pathContainsBird = YES;
[self doDie];
}
}
if(!pathContainsBird) {
//fill path here
}
其次,我很确定你没有绕过正确的事情。看起来你每次迭代都会扩展路径,但我认为你应该首先构建整个路径,然后循环遍历所有的鸟类,但我可能会误解。