Cocos2d Objective-C to Swift transition snippets

Cocos2dSwift.swift

/* 
    Setting up custom texture parameters:
    Firstly, add this to Bridging-Header.h-file: #import "libs/cocos2d-iphone/cocos2d/CCTexture_Private.h"
    The ccTexParams struct is set up with GLuint's. The texParams needs to be a 'var' and not a 'let' constant.
*/
var texture = ...
var texParams = ccTexParams(minFilter: GLuint(GL_LINEAR), magFilter: GLuint(GL_LINEAR), wrapS: GLuint(GL_REPEAT), wrapT: GLuint(GL_CLAMP_TO_EDGE))
texture.setTexParameters(&texParams)
 
/*
    Setting up a custom CCBlendMode:
    The [CCBlendMode blendModeWithOptions:] constructor takes a NSDictionary as it's argument. In Swift that'll be a [NSObject:AnyObject]. 
    The GL constants (GL_DST_ALPHA etc) are Int32's which will not automatically bridge to NSNumber. Wrapping them with an Int() 
    (as Int's are automatically bridged) or NSNumber(int:) does the trick
*/
sprite.blendMode = CCBlendMode(options: [CCBlendFuncSrcColor: Int(GL_DST_ALPHA), CCBlendFuncDstColor:Int(GL_ONE_MINUS_SRC_ALPHA)])