Objective c 编写我自己的方法-SpriteKit

我经常发现自己在重复代码，所以我想创建一个方法来处理它，并减少大量重复。我很难理解这些方法，所以有人可以建议我如何创建一个自定义方法来处理TouchesBegind方法中的重复代码

谢谢

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{

for (vLineName in vLineArray) {

    NSString *value = [vLineArray objectForKey:vLineName];
    SKAction *changeLineToDark = [SKAction setTexture:[SKTexture textureWithImageNamed:@"darkTexture.png"]];


    for (UITouch *touch in touches) {
        CGPoint touchPoint = [touch locationInNode:self];
        SKSpriteNode *box = (SKSpriteNode *)[self childNodeWithName:value];
        if (CGRectContainsPoint(box.frame, touchPoint)) {
            [box runAction:changeLineToDark];
            box.zPosition = 2;
            NSLog (@"Just Touched %@", vLineName);
        }
     }
}

for (hLineName in hLineArray) {

    NSString *value = [hLineArray objectForKey:hLineName];
    SKAction *changeLineToDark = [SKAction setTexture:[SKTexture textureWithImageNamed:@"darkTexture.png"]];


    for (UITouch *touch in touches) {
        CGPoint touchPoint = [touch locationInNode:self];
        SKSpriteNode *box = (SKSpriteNode *)[self childNodeWithName:value];
        if (CGRectContainsPoint(box.frame, touchPoint)) {
            [box runAction:changeLineToDark];
            box.zPosition = 2;
            NSLog (@"Just Touched %@", hLineName);
        }
    }
}
}

---

您可以从ToucheSBegind:withEvent:方法中提取代码，如：

-(void)handleTouch:(NSSet *)touches
{
    for (vLineName in vLineArray) {

    NSString *value = [vLineArray objectForKey:vLineName];
    SKAction *changeLineToDark = [SKAction setTexture:[SKTexture textureWithImageNamed:@"darkTexture.png"]];


    for (UITouch *touch in touches) {
        CGPoint touchPoint = [touch locationInNode:self];
        SKSpriteNode *box = (SKSpriteNode *)[self childNodeWithName:value];
        if (CGRectContainsPoint(box.frame, touchPoint)) {
            [box runAction:changeLineToDark];
            box.zPosition = 2;
            NSLog (@"Just Touched %@", vLineName);
        }
     }
}

for (hLineName in hLineArray) {

    NSString *value = [hLineArray objectForKey:hLineName];
    SKAction *changeLineToDark = [SKAction setTexture:[SKTexture textureWithImageNamed:@"darkTexture.png"]];


    for (UITouch *touch in touches) {
        CGPoint touchPoint = [touch locationInNode:self];
        SKSpriteNode *box = (SKSpriteNode *)[self childNodeWithName:value];
        if (CGRectContainsPoint(box.frame, touchPoint)) {
            [box runAction:changeLineToDark];
            box.zPosition = 2;
            NSLog (@"Just Touched %@", hLineName);
        }
    }
}
}

每次触摸屏幕时，您都可以将其称为：

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    [self handleTouch:touches];
}