TextureCutoutShape.mm

//
//  TextureCutoutShape.mm
//  DemoBros
//
//  Created by et1337 on 6/29/11.
//  Copyright 2011 __MyCompanyName__. All rights reserved.
//

#import "TextureCutoutShape.h"
#import "CCNode+Extensions.h"

@implementation TextureCutoutShape
@synthesize vertexCount;
@synthesize textureScale;

-(CCTexture2D*) texture
{
    return texture;
}

-(void) setTexture:(CCTexture2D*)tex
{
    texture = tex;
    ccTexParams params = { GL_LINEAR, GL_LINEAR, GL_REPEAT, GL_REPEAT };
    [texture setTexParameters:&params];
}

-(id) init
{
    NSAssert(false, @"Incorrect constructor for TextureCutoutShape.");
    return NULL;
}

-(id) initWithFile:(NSString*)file andVertexCount:(int)vertices
{
    if ((self = [self initWithTexture:[[CCTextureCache sharedTextureCache] addImage:file] andVertexCount:vertices]))
    {
    }
    return self;
}

-(id) initWithTexture:(CCTexture2D*)tex andVertexCount:(int)vertices
{
    if ((self = [super init]))
    {
        self.texture = tex;
        vertexCount = vertices;
        points = (CGPoint*)malloc(sizeof(CGPoint) * vertexCount);
        coords = (CGPoint*)malloc(sizeof(CGPoint) * vertexCount);
        colors = (ccColor4B*)malloc(sizeof(ccColor4B) * vertexCount);
        self.color = ccc3(255, 255, 255);
        self.opacity = 255;
        textureScale = 0.0025f;
    }
    return self;
}

-(ccColor3B) color
{
    return ccc3(colors[0].r, colors[0].g, colors[0].b);
}

-(void) setColor:(ccColor3B)color
{
    for (int i = 0; i < vertexCount; i++)
        colors[i] = ccc4(color.r, color.g, color.b, colors[i].a);
}

-(GLubyte) opacity
{
    return colors[0].a;
}

-(void) setOpacity:(GLubyte)opacity
{
    for (int i = 0; i < vertexCount; i++)
        colors[i].a = opacity;
}

-(void) dealloc
{
    [texture release];
    free(points);
    free(coords);
    free(colors);
    [super dealloc];
}

-(void) draw
{
#ifdef DEBUG
    [super draw];
#endif

    for (int i = 0; i < vertexCount; i++)
        coords[i] = ccpMult([self.layer convertToNodeSpace:[self convertToWorldSpace:points[i]]], textureScale);

    glBindTexture(GL_TEXTURE_2D, texture.name);
    glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
    glTexCoordPointer(2, GL_FLOAT, 0, coords);
    glVertexPointer(2, GL_FLOAT, 0, points);
    glDrawArrays(GL_TRIANGLE_FAN, 0, vertexCount);
}

@end