更改init中的sprite plist文件-cocos2d

Question

我正在用cocos2d進行游戲，並且我有一個騎士角色想要更改其精靈。 因此，在我的knight.m中，我這樣做了：

- (id)initWithKnightPicture {

        l1 = [NSString stringWithFormat:@"knightL3.png"];
        l1_plist = [NSString stringWithFormat:@"knightL3.plist"];

        self = [super initWithFile:l1];


    if (self) {

                [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:l1_plist];

        // ************* RUNNING ANIMATION ********************
        animationFramesRun = [NSMutableArray array];
        for(int i = 1; i <= 6; ++i) {
            [animationFramesRun addObject:
             [[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName: [NSString stringWithFormat:@"Level1-Run-hd-%d.png", i]]];
        }
    }
    return self;
}

- (void)update:(ccTime)delta
{
    if ([[GameMechanics sharedGameMechanics] game].fatness < 20) {
        l1 = [NSString stringWithFormat:@"knightL1.png"];
        l1_plist = [NSString stringWithFormat:@"knightL1.plist"];
    } else if ([[GameMechanics sharedGameMechanics] game].fatness < 40) {
        l1 = [NSString stringWithFormat:@"knightL2.png"];
        l1_plist = [NSString stringWithFormat:@"knightL2.plist"];
    } else if ([[GameMechanics sharedGameMechanics] game].fatness < 60) {
        l1 = [NSString stringWithFormat:@"knightL3.png"];
        l1_plist = [NSString stringWithFormat:@"knightL3.plist"];
    } else if ([[GameMechanics sharedGameMechanics] game].fatness < 80) {
        l1 = [NSString stringWithFormat:@"knightL4.png"];
        l1_plist = [NSString stringWithFormat:@"knightL4.plist"];
    } else if ([[GameMechanics sharedGameMechanics] game].fatness < 100) {
        l1 = [NSString stringWithFormat:@"knightL5.png"];
        l1_plist = [NSString stringWithFormat:@"knightL5.plist"];
    }
}

所以基本上，我想騎士的精靈改變從knightL1.plist到knightL2.plist基礎上，騎士的肥土...所以我在做什么在我的代碼，我分配騎士是串l1和分配l1和l1_plist在init是knightL3 。 然后在更新方法中，將l1和l1_plist更改為另一個字符串。 問題是，如果肥胖度超過80 ，並且我將l1和l1_plist字符串更改為其他字符串，則子畫面不會從knightL4.plist更改為knightL5.plist 。 那么如何使騎士隨着比賽的進行而根據脂肪變化呢？

提前致謝！

Answer 1

您發布的代碼應該可以工作。 嘗試在Fatness> 80的調試器中逐步執行它，然后查看執行了哪些行。