gistfile1.m

    // TODO can we get rid of these?
    // Create a texture for non selected and selected points
    unselected_point = [[SPTexture alloc] initWithWidth:200 height:200 draw:^(CGContextRef context) {
        CGContextSetLineWidth(context, 2.0f);
        CGContextSetRGBFillColor(context, 0.7f, 0.7f, 0.7f, 1.0f);
        CGContextSetRGBStrokeColor(context, 0.7f, 0.7f, 0.7f, 1.0f);
        CGRect circlePoint = (CGRectMake(0.0f, 0.0f, 8.0f, 8.0f));
        
        CGContextFillEllipseInRect(context, circlePoint);        
    }];
    [[TextureManager sharedTextureManager] cacheTexture:unselected_point withName:@"unselected_point"];
    
    selected_point = [[SPTexture alloc] initWithWidth:200 height:200 draw:^(CGContextRef context) {
        CGContextSetLineWidth(context, 2.0f);
        CGContextSetRGBFillColor(context, 0.0f, 1.0f, 1.0f, 1.0f);
        CGContextSetRGBStrokeColor(context, 0.0f, 1.0f, 1.0f, 1.0f);
        CGRect circlePoint = (CGRectMake(0.0f, 0.0f, 8.0f, 8.0f));
        
        CGContextFillEllipseInRect(context, circlePoint);        
    }];
    [[TextureManager sharedTextureManager] cacheTexture:selected_point withName:@"selected_point"];