Ios 使用SpriteKit创建一条直线

如何使用SpriteKit和

UITouch

创建直线

我想要一个方法，允许我添加起点和终点，而不是路径。就像橡皮筋一样

创建一个

SKShapeNode

，这是用户开始触摸移动时的一条线，例如在

touchesbeated:

中

SKShapeNode *line = [SKShapeNode node];
CGPoint startPoint = CGPointMake(..., ...)
CGPoint endPoint = CGPointMake(..., ...)

CGMutablePathRef pathToDraw = CGPathCreateMutable();
CGPathMoveToPoint(pathToDraw, NULL, startPoint.x, startPoint.y);
CGPathAddLineToPoint(pathToDraw, NULL, endPoint.x, endPoint.y);

line.path = pathToDraw;
line.strokeColor = [UIColor redColor]];
[self addChild:line];

在

触摸移动：

创建一个

SKShapeNode

，这是用户开始触摸移动时的一条线，例如在

touchesbeated:

中

SKShapeNode *line = [SKShapeNode node];
CGPoint startPoint = CGPointMake(..., ...)
CGPoint endPoint = CGPointMake(..., ...)

CGMutablePathRef pathToDraw = CGPathCreateMutable();
CGPathMoveToPoint(pathToDraw, NULL, startPoint.x, startPoint.y);
CGPathAddLineToPoint(pathToDraw, NULL, endPoint.x, endPoint.y);

line.path = pathToDraw;
line.strokeColor = [UIColor redColor]];
[self addChild:line];

在

触摸移动：

创建一个

SKShapeNode

，这是用户开始触摸移动时的一条线，例如在

touchesbeated:

中

SKShapeNode *line = [SKShapeNode node];
CGPoint startPoint = CGPointMake(..., ...)
CGPoint endPoint = CGPointMake(..., ...)

CGMutablePathRef pathToDraw = CGPathCreateMutable();
CGPathMoveToPoint(pathToDraw, NULL, startPoint.x, startPoint.y);
CGPathAddLineToPoint(pathToDraw, NULL, endPoint.x, endPoint.y);

line.path = pathToDraw;
line.strokeColor = [UIColor redColor]];
[self addChild:line];

在

触摸移动：

创建一个

SKShapeNode

，这是用户开始触摸移动时的一条线，例如在

touchesbeated:

中

SKShapeNode *line = [SKShapeNode node];
CGPoint startPoint = CGPointMake(..., ...)
CGPoint endPoint = CGPointMake(..., ...)

CGMutablePathRef pathToDraw = CGPathCreateMutable();
CGPathMoveToPoint(pathToDraw, NULL, startPoint.x, startPoint.y);
CGPathAddLineToPoint(pathToDraw, NULL, endPoint.x, endPoint.y);

line.path = pathToDraw;
line.strokeColor = [UIColor redColor]];
[self addChild:line];

在

触摸移动：