スクロール背景 - スプライトキット
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21-12-2019 - |
質問
だから私はこの記事の解決策を使って無限スクロールバックグラウンドを作成しようとしました(スプライトキットサイドスクロール)。 しかし、私は画像を再現できるようにしたいと思います。あなたが下のビデオで見ることができるように、イメージが水平方向の方法で終わった後、いくつかの空のギャップがあります。私はそのギャップを埋めるようにしたいのですが、それを際限なく繰り返します。
http://www.youtube.com/watch?v=kyltgz7irrc または https://vimeo.com/79555900 (パスワード:Spritekit)
私がしたこと:
for (int i = 0; i < 2; i++) {
SKSpriteNode * bg = [SKSpriteNode spriteNodeWithImageNamed:@"bgimage"];
bg.anchorPoint = CGPointZero;
bg.position = CGPointMake(CGRectGetMidX(self.frame), self.frame.origin.y);
bg.name = @"snow1";
[self addChild:bg];
}
.
および更新方法:
[self enumerateChildNodesWithName:@"snow1" usingBlock: ^(SKNode *node, BOOL *stop) {
SKSpriteNode *bg = (SKSpriteNode *) node;
bg.position = CGPointMake(bg.position.x - 5, bg.position.y);
if (bg.position.x <= -bg.size.width)
bg.position = CGPointMake(bg.position.x + bg.size.width * 2, bg.position.y);
}];
. 解決
とにかく、私はそれを修正しました。他の誰かがそれを必要とする場合に備えて、これは私がした方法です:
// Create 2 background sprites
bg1 = [SKSpriteNode spriteNodeWithImageNamed:@"bg1"];
bg1.anchorPoint = CGPointZero;
bg1.position = CGPointMake(0, 0);
[self addChild:bg1];
bg2 = [SKSpriteNode spriteNodeWithImageNamed:@"bg2"];
bg2.anchorPoint = CGPointZero;
bg2.position = CGPointMake(bg1.size.width-1, 0);
[self addChild:bg2];
.
その後更新方法:
bg1.position = CGPointMake(bg1.position.x-4, bg1.position.y);
bg2.position = CGPointMake(bg2.position.x-4, bg2.position.y);
if (bg1.position.x < -bg1.size.width)
bg1.position = CGPointMake(bg2.position.x + bg2.size.width, bg1.position.y);
if (bg2.position.x < -bg2.size.width)
bg2.position = CGPointMake(bg1.position.x + bg1.size.width, bg2.position.y);
. 他のヒント
forループを持つ元のロジックは、小さな変更でうまく機能します。
for (int i = 0; i < 2; i++) {
SKSpriteNode * bg = [SKSpriteNode spriteNodeWithImageNamed:@"bgimage"];
bg.anchorPoint = CGPointZero;
bg.position = CGPointMake(i*bg.size.width, 0);
bg.name = @"snow1";
[self addChild:bg];
}
.
および更新方法で:
[self enumerateChildNodesWithName:@"snow1" usingBlock: ^(SKNode *node, BOOL *stop) {
SKSpriteNode *bg = (SKSpriteNode *) node;
bg.position = CGPointMake(bg.position.x - 5, bg.position.y);
if (bg.position.x <= -bg.size.width) {
bg.position = CGPointMake(bg.position.x + bg.size.width * 2, bg.position.y);
}
}];
. SEBYDDDの答えを使用して、私はコードを少し変更して複数の背景画像のスタックを表示します。(正確に7つの背景画像)。そして苦労している人のためのもう少しコードを追加しました。
MyScene.h:
@interface MyScene : SKScene
{
SKSpriteNode *bg1;
SKSpriteNode *bg2;
SKSpriteNode *bg3;
SKSpriteNode *bg4;
SKSpriteNode *bg5;
SKSpriteNode *bg6;
SKSpriteNode *bg7;
}
.
MyScene.M:
-(id)initWithSize:(CGSize)size {
if (self = [super initWithSize:size]) {
// create 7 background sprites
bg1 = [SKSpriteNode spriteNodeWithImageNamed:@"background1"];
bg1.anchorPoint = CGPointZero;
bg1.position = CGPointMake(0, 0);
[self addChild:bg1];
bg2 = [SKSpriteNode spriteNodeWithImageNamed:@"background2"];
bg2.anchorPoint = CGPointZero;
bg2.position = CGPointMake(bg1.size.width-1, 0);
[self addChild:bg2];
bg3 = [SKSpriteNode spriteNodeWithImageNamed:@"background3"];
bg3.anchorPoint = CGPointZero;
bg3.position = CGPointMake(bg2.size.width-1, 0);
[self addChild:bg3];
bg4 = [SKSpriteNode spriteNodeWithImageNamed:@"background4"];
bg4.anchorPoint = CGPointZero;
bg4.position = CGPointMake(bg3.size.width-1, 0);
[self addChild:bg4];
bg5 = [SKSpriteNode spriteNodeWithImageNamed:@"background5"];
bg5.anchorPoint = CGPointZero;
bg5.position = CGPointMake(bg4.size.width-1, 0);
[self addChild:bg5];
bg6 = [SKSpriteNode spriteNodeWithImageNamed:@"background6"];
bg6.anchorPoint = CGPointZero;
bg6.position = CGPointMake(bg5.size.width-1, 0);
[self addChild:bg6];
bg7 = [SKSpriteNode spriteNodeWithImageNamed:@"background7"];
bg7.anchorPoint = CGPointZero;
bg7.position = CGPointMake(bg6.size.width-1, 0);
[self addChild:bg7];
}
}
- (void)update:(NSTimeInterval)currentTime {
[self moveBackground];
}
-(void)moveBackground
{
bg1.position = CGPointMake(bg1.position.x-4, bg1.position.y);
bg2.position = CGPointMake(bg2.position.x-4, bg2.position.y);
bg3.position = CGPointMake(bg3.position.x-4, bg3.position.y);
bg4.position = CGPointMake(bg4.position.x-4, bg4.position.y);
bg5.position = CGPointMake(bg5.position.x-4, bg5.position.y);
bg6.position = CGPointMake(bg6.position.x-4, bg6.position.y);
bg7.position = CGPointMake(bg7.position.x-4, bg7.position.y);
if (bg1.position.x < -bg1.size.width){
bg1.position = CGPointMake(bg7.position.x + bg7.size.width, bg1.position.y);
}
if (bg2.position.x < -bg2.size.width) {
bg2.position = CGPointMake(bg1.position.x + bg1.size.width, bg2.position.y);
}
if (bg3.position.x < -bg3.size.width) {
bg3.position = CGPointMake(bg2.position.x + bg2.size.width, bg3.position.y);
}
if (bg4.position.x < -bg4.size.width) {
bg4.position = CGPointMake(bg3.position.x + bg3.size.width, bg4.position.y);
}
if (bg5.position.x < -bg5.size.width) {
bg5.position = CGPointMake(bg4.position.x + bg4.size.width, bg5.position.y);
}
if (bg6.position.x < -bg6.size.width) {
bg6.position = CGPointMake(bg5.position.x + bg5.size.width, bg6.position.y);
}
if (bg7.position.x < -bg7.size.width) {
bg7.position = CGPointMake(bg6.position.x + bg6.size.width, bg7.position.y);
}
}
. 所属していません StackOverflow