sky-roads/GLGameTemplate/ViewController.mm

//
//  ViewController.m
//  GLGameTemplate
//
//  Created by Joshua Moerman on 5/4/12.
//  Copyright (c) 2012 Vadovas. All rights reserved.
//

#import "ViewController.h"
#import "App.h"

@interface ViewController () {
	App * app;
	float width;
	float height;
}
@property (strong, nonatomic) EAGLContext *context;
- (void)setupGL;
- (void)tearDownGL;
@end


@implementation ViewController
@synthesize context = _context;

- (void)dealloc {
    [_context release];
    [super dealloc];
}

#pragma mark - View stuff
- (void)viewDidLoad {
	self.preferredFramesPerSecond = 60;
    [super viewDidLoad];
    
    self.context = [[[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2] autorelease];
    if (!self.context) NSLog(@"Failed to create ES context");
    
    GLKView* view = (GLKView* )self.view;
    view.context = self.context;
    view.drawableDepthFormat = GLKViewDrawableDepthFormat24;
	view.drawableMultisample = GLKViewDrawableMultisample4X;
    
    [self setupGL];
}

- (void)viewDidUnload {
    [super viewDidUnload];
    
    [self tearDownGL];
    
    if ([EAGLContext currentContext] == self.context) {
        [EAGLContext setCurrentContext:nil];
    }
    self.context = nil;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
        return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
    } else {
        return YES;
    }
}

#pragma mark - openGL setup
- (void)setupGL {
    [EAGLContext setCurrentContext:self.context];
	app = new App;
}

- (void)tearDownGL {
    [EAGLContext setCurrentContext:self.context];
    
    delete app;
	app = 0;
}

#pragma mark - GLKView and GLKViewController delegate methods
- (void)update {
	if(width != self.view.bounds.size.width || height != self.view.bounds.size.height){
		width = self.view.bounds.size.width;
		height = self.view.bounds.size.height;
		app->resize(width, height);
	}
	app->update(self.timeSinceLastUpdate);
}

- (void)glkView:(GLKView *)view drawInRect:(CGRect)rect {
	app->draw();
}

@end