圖像以相反順序顯示並縮小爲一半尺寸cocos2d

Question

我使用opengl調用在cocos2d中繪製圖像，但圖像以相反順序顯示並縮小比例，原始圖像大小爲320 * 480。我之前遇到過同樣的問題，那時候我曾經用cocos2d api v1的ccConfig文件中的0將CC_TEXTURE_NPOT_SUPPORT的值更改爲1，然後它正確顯示圖像，現在我正在創建新的cocos2d項目，我面臨同樣的問題，我遵循我使用的過程以前，但仍然圖像顯示相反的順序只有自己做錯了什麼是怎麼回事，我不知道......輸出的

截屏

這裏是我的代碼.....

代碼在初始化方法

if((self=[super init])) { 
[CCTexture2D setDefaultAlphaPixelFormat:kCCTexture2DPixelFormat_RGBA8888]; 
if (originalImage!=nil) { 
    originalImage=nil; 
} 
self.originalImage=[Utilities scaleAndRotateImage:[UIImage imageNamed:@"2.jpg"]]; 

texture2D = [[CCTexture2D alloc] initWithImage:originalImage]; 
NSLog(@"Width %f Height %f",texture2D.contentSize.width,texture2D.contentSize.height); 
[self body_init]; 
self.isTouchEnabled = YES; 

/*繪製下一幀動畫。 */

- (void)body_redraw { 
int k; 
int i, j; 
if(mass == NULL) { 
NSLog(@"mass is null"); 
return; 
} 
glBindTexture(GL_TEXTURE_2D, [texture2D name]); 

k = 0; 
for (i = 0; i < GRID_SIZE_X - 1; i++) 
{ 
for (j = 0; j < GRID_SIZE_Y - 1; j++) 
{ 
    GLfloat vertices[]= { 
     mass[k].x[0],mass[k].x[1],mass[k].x[2], 
     mass[k + 1].x[0],mass[k + 1].x[1],mass[k + 1].x[2], 
     mass[k + GRID_SIZE_Y + 1].x[0],mass[k + GRID_SIZE_Y + 1].x[1], 
      mass[k + GRID_SIZE_Y + 1].x[2], 
     mass[k + GRID_SIZE_Y].x[0],mass[k + GRID_SIZE_Y].x[1], 
     mass[k + GRID_SIZE_Y].x[2] 
    }; 
    GLfloat tex[]={ 
     mass[k].t[0], mass[k].t[1], 
     mass[k + 1].t[0], mass[k + 1].t[1], 
     mass[k + GRID_SIZE_Y + 1].t[0], mass[k + GRID_SIZE_Y + 1].t[1], 
     mass[k + GRID_SIZE_Y].t[0], mass[k + GRID_SIZE_Y].t[1] 
    }; 

    glVertexPointer(3, GL_FLOAT, 0, vertices); 
    glTexCoordPointer(2, GL_FLOAT, 0, tex); 
    glDrawArrays(GL_TRIANGLE_FAN, 0,4); 

    k++; 
} 
    k++; 
} 
} 


- (void)body_init { 

GLint width = texture2D.contentSizeInPixels.width; 
GLint height = texture2D.contentSizeInPixels.height; 
int i, j; 
int k; 

if (mass == NULL) 
{ 
mass = (MASS *) malloc(sizeof(MASS)*GRID_SIZE_X*GRID_SIZE_Y); 
if (mass == NULL) 
{ 
    fprintf(stderr, "body: Can't allocate memory.\n"); 
    exit(-1); 
} 
} 

k = 0; 
for (i = 0; i < GRID_SIZE_X; i++) 
for (j = 0; j < GRID_SIZE_Y; j++) 
{ 
    //this code implements grid on texture2D, gets vertex & side vertex in array 
    mass[k].nail = (i == 0 || j == 0 || i == GRID_SIZE_X - 1 
        || j == GRID_SIZE_Y - 1);//value is 0/1 

    mass[k].x[0] = i/(GRID_SIZE_X - 1.0)*width; 
    //   NSLog(@"mass[%d].x[0]:: %f",k,mass[k].x[0]); 

    mass[k].x[1] = j/(GRID_SIZE_Y - 1.0)*height; 
    //   NSLog(@"mass[%d].x[1]:: %f",k,mass[k].x[1]); 

    mass[k].x[2] = -(CLIP_FAR - CLIP_NEAR)/4.0; 
    //   NSLog(@"mass[%d].x[2]:: %f",k,mass[k].x[2]); 

    mass[k].v[0] = 0.0; 
    mass[k].v[1] = 0.0; 
    mass[k].v[2] = 0.0; 

    mass[k].t[0] = i/(GRID_SIZE_X - 1.0); 
    mass[k].t[1] = j/(GRID_SIZE_Y - 1.0); 

    k++; 
    } 
} 

- (void)draw { 

glDisableClientState(GL_COLOR_ARRAY); 
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); 
glColor4ub(224,224,244,200); 

[self body_redraw]; 

glBlendFunc(CC_BLEND_SRC, CC_BLEND_DST); 
glEnableClientState(GL_COLOR_ARRAY); 

}

Answer 1

如果是cocos2d的遊戲，那麼你可以使用這些調用倒車影像和縮小。

CCSprite *sprite = [CCSprite spriteWithFile:@"Filename.png"]; 
[parent addChild:sprite]; 
[sprite setPosition: ccp(p.x, p.y)]; 

sprite.flipY = true; 
sprite.scale = 1.0f;