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我試圖跟蹤多點觸控的序列,在這裏我所做的:如何按順序檢測多點觸摸?
1.創建一個cocos2d的應用 2.啓用多點觸控 3.添加代碼touchesBegin:
- (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
NSSet *allTouches = [event allTouches];
for (int i = 0; i < allTouches.count; i++) {
UITouch *touch = [[allTouches allObjects] objectAtIndex:i];
CGPoint touchLocation = [touch locationInView: [touch view]];
CGPoint location = [[CCDirector sharedDirector]
convertToGL:touchLocation];
NSLog(@"allTouches %d %0.1f, %0.1f", (i + 1), location.x, location.y);
}
}
我首先嚐試了「[觸及allObjects]」,但這需要同時進行多點觸控。我在這裏想要的是 一次接收多點觸摸。所以我用[事件allTouches];
4.I通過一次把在我的手指一個測試的代碼,但 輸出序列似乎raomdom(具有小XVAL和第二 大XVAL第一手指,間隔比2S更大):
result 1:
2011-03-31 10:54:35.847 MultiTouchDemo[2788:207] allTouches 1 58.0, 458.0
2011-03-31 10:54:38.045 MultiTouchDemo[2788:207] allTouches 1 56.0, 453.0
2011-03-31 10:54:38.046 MultiTouchDemo[2788:207] allTouches 2 930.0, 429.0
result 2:
2011-03-31 10:55:11.659 MultiTouchDemo[2788:207] allTouches 1 86.0, 415.0
2011-03-31 10:55:13.378 MultiTouchDemo[2788:207] allTouches 1 965.0, 409.0
2011-03-31 10:55:13.380 MultiTouchDemo[2788:207] allTouches 2 84.0, 413.0
result 3:
2011-03-31 10:55:32.991 MultiTouchDemo[2788:207] allTouches 1 76.0, 453.0
2011-03-31 10:55:34.630 MultiTouchDemo[2788:207] allTouches 1 877.0, 430.0
2011-03-31 10:55:34.631 MultiTouchDemo[2788:207] allTouches 2 76.0, 455.0
result 4:
2011-03-31 10:55:45.960 MultiTouchDemo[2788:207] allTouches 1 94.0, 440.0
2011-03-31 10:55:47.134 MultiTouchDemo[2788:207] allTouches 1 92.0, 438.0
2011-03-31 10:55:47.136 MultiTouchDemo[2788:207] allTouches 2 934.0, 358.0
所以你可以看到[allTouches allObjects] 中的第二根手指的索引似乎一直在改變。
如果我想在單個設備上製作遊戲支持多人遊戲,我想跟蹤他們執行的動作,我怎麼能用 所有這些隨機pos?
希望有人能幫助我,謝謝^ _^