SKSpriteNode - 创建一个圆角节点? [英] SKSpriteNode - create a round corner node?

问题描述

有没有办法让 SKSpriteNode 圆角?我正在尝试使用填充颜色的 SKSpriteNode 创建一个 Tile likesqaure 块:

Is there a way to make a SKSpriteNode round cornered? I am trying to create a Tile likesqaure blocks with color filled SKSpriteNode:

SKSpriteNode *tile = [SKSpriteNode spriteNodeWithColor:[UIColor colorWithRed:0.0/255.0
                                                                           green:128.0/255.0
                                                                            blue:255.0/255.0
                                                                           alpha:1.0] size:CGSizeMake(30, 30)];

我怎样才能让它变成圆角?

How can I make it round cornered?

谢谢！

推荐答案

要获得圆角节点，您可以使用 2 种方法，每种方法都需要使用 SKShapeNode.

To get a rounded corner node you can use 2 approaches, each of them requires use of SKShapeNode.

第一种方法是使用 SKShapeNode 并将其路径设置为圆角矩形，如下所示:

First way is to use SKShapeNode and set its path to be a rounded rectangle like this:

SKShapeNode* tile = [SKShapeNode node];
[tile setPath:CGPathCreateWithRoundedRect(CGRectMake(-15, -15, 30, 30), 4, 4, nil)];
tile.strokeColor = tile.fillColor = [UIColor colorWithRed:0.0/255.0
                                                    green:128.0/255.0
                                                     blue:255.0/255.0
                                                    alpha:1.0];

另一种使用精灵节点，裁剪节点和带有圆角矩形的SKShapeNode作为裁剪节点掩码:

The other one uses sprite node,crop node and SKShapeNode with rounded rectangle as crop nodes mask:

SKSpriteNode *tile = [SKSpriteNode spriteNodeWithColor:[UIColor   colorWithRed:0.0/255.0
                                                                           green:128.0/255.0
                                                                            blue:255.0/255.0
                                                                           alpha:1.0] size:CGSizeMake(30, 30)];
SKCropNode* cropNode = [SKCropNode node];
SKShapeNode* mask = [SKShapeNode node];
[mask setPath:CGPathCreateWithRoundedRect(CGRectMake(-15, -15, 30, 30), 4, 4, nil)];
[mask setFillColor:[SKColor whiteColor]];
[cropNode setMaskNode:mask];
[cropNode addChild:tile];

如果您的瓷砖是纯色的，我建议您使用第一种方法.

If your tiles are one solid colour, i suggest you go with the first approach.

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