CCDrawingPrimitives+ccDrawFillCircle

CCDrawingPrimitives+ccDrawFillCircle.h

//
//  CCDrawingPrimitives+ccDrawFillCircle.h
//  MindSnacks
//
//  Created by Jarod L on 9/20/11.
//  Copyright (c) 2011 MindSnacks. All rights reserved.
//

#import "CCDrawingPrimitives.h"

void ccDrawFillCircle( CGPoint center, float radius, float angle, NSUInteger segments);

CCDrawingPrimitives+ccDrawFillCircle.m

//
//  CCDrawingPrimitives+ccDrawFillCircle.m
//  MindSnacks
//
//  Created by Jarod L on 9/20/11.
//  Copyright (c) 2011 MindSnacks. All rights reserved.
//

#import "CCDrawingPrimitives+ccDrawFillCircle.h"
#import "ccTypes.h"
#import "ccMacros.h"
//#import "Platforms/CCGL.h"

void ccDrawFillCircle( CGPoint center, float radius, float angle, NSUInteger segments)
{
    const float coef = 2.0f * (float)M_PI/segments;
	
	GLfloat *vertices = calloc( sizeof(GLfloat)*2*(segments+2), 1);
	if( ! vertices )
		return;
    
	for(NSUInteger i=0;i<=segments;i++)
	{
		float rads = i*coef;
		GLfloat j = radius * cosf(rads + angle) + center.x;
		GLfloat k = radius * sinf(rads + angle) + center.y;
		
		vertices[i*2] = j * CC_CONTENT_SCALE_FACTOR();
		vertices[i*2+1] =k * CC_CONTENT_SCALE_FACTOR();
	}
    
	vertices[(segments+1)*2] = center.x * CC_CONTENT_SCALE_FACTOR();
	vertices[(segments+1)*2+1] = center.y * CC_CONTENT_SCALE_FACTOR();
    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
	glDisableClientState(GL_COLOR_ARRAY);
	glDisable(GL_TEXTURE_2D);
    
	glVertexPointer(2, GL_FLOAT, 0, vertices);
    glBlendFunc(GL_ONE, GL_ZERO);
	glDrawArrays(GL_TRIANGLE_FAN, 0, segments);
    
    // restore default GL state
	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
	glEnableClientState(GL_COLOR_ARRAY);
	glEnable(GL_TEXTURE_2D);
}

Awesome sauce! Might wanna add this line?

void ccDrawFillCircle( ..
    // ..
    free(vertices);
}

Nice! Good catch. I'm not sure why the gist keeps showing up twice. Even after I delete the duplicate .m & .h file it still shows up.

Yeah, I saw that. They're named different though,CCDrawingPrimitives+ccDrawFillCircle and CCDrawingPrimitivesccDrawFillCircle might have something to do with it?

Weird. In the edit view they are all named the same thing (the filename without the +). When I changed them all to have + the extra two disappeared :S