我正在开发一款iphone游戏。因为我不得不产生水波纹。我不知道该怎么做。我听说可以用openGL完成。我对这个概念很陌生。任何人都可以指导我吗?
答案 0 :(得分:14)
以下是我找到的一些资源:
Language Agnostic 2d Water Ripple Algorithm
(来源:virgin.net)
(来源:virgin.net)
OpenGL Project with Water Ripples (Source)
(来源:sulaco.co.za)
你也可能希望摆动GameDev's FAQ。向下滚动到“水渲染”部分。
答案 1 :(得分:2)
JK:
z=sin(x)+cos(y)
更严重的是,Quartz Composer基本上不会为您作为效果层之一做涟漪吗?还是只宣布了iPhone 3.0 SDK?
答案 2 :(得分:0)
我找到了水波纹效果的源代码,因此遵循代码实现到您的项目中并解决您的问题。
// HelloWorldLayer implementation
@implementation HelloWorldLayer
+(CCScene *) scene
{
// 'scene' is an autorelease object.
CCScene *scene = [CCScene node];
// 'layer' is an autorelease object.
HelloWorldLayer *layer = [HelloWorldLayer node];
// add layer as a child to scene
[scene addChild: layer];
// return the scene
return scene;
}
// on "init" you need to initialize your instance
-(id) init
{
if( (self=[super init])) {
rippleImage = [ pgeRippleSprite ripplespriteWithFile:@"image_old.png" ];
[ self addChild:rippleImage ];
CCLabelTTF *label = [CCLabelTTF labelWithString:@"Hello Cocos2D Forum" fontName:@"Marker Felt" fontSize:16];
label.position = ccp( 80 , 300 );
[self addChild: label];
[ [ CCTouchDispatcher sharedDispatcher ] addTargetedDelegate:self priority:0 swallowsTouches:YES ];
// schedule update
[ self schedule:@selector( update: ) ];
}
return self;
}
float runtime = 0;
-( BOOL )ccTouchBegan:( UITouch* )touch withEvent:( UIEvent* )event {
runtime = 0.1f;
[ self ccTouchMoved:touch withEvent:event ];
return( YES );
}
-( void )ccTouchMoved:(UITouch *)touch withEvent:(UIEvent *)event {
CGPoint pos;
if ( runtime >= 0.1f ) {
runtime -= 0.1f;
// get touch position and convert to screen coordinates
pos = [ touch locationInView: [ touch view ] ];
pos = [ [ CCDirector sharedDirector ] convertToGL:pos ];
// [ rippleImage addRipple:pos type:RIPPLE_TYPE_RUBBER strength:1.0f ];
[ rippleImage addRipple:pos type:RIPPLE_TYPE_WATER strength:2.0f ];
}
}
-( void )update:( ccTime )dt {
runtime += dt;
[ rippleImage update:dt ];
}
// on "dealloc" you need to release all your retained objects
- (void) dealloc
{
// in case you have something to dealloc, do it in this method
// in this particular example nothing needs to be released.
// cocos2d will automatically release all the children (Label)
// don't forget to call "super dealloc"
[super dealloc];
}
@end