//
//  JumpGameMode.m
//  Cart Collect
//
//  Created by Starla Insigna on 8/17/11.
//  Copyright 2011 Four Island. All rights reserved.
//

#import "JumpGameMode.h"

#define kMinimumGestureLength  50

@implementation JumpGameMode

- (id)init
{
    self = [super init];
    
    if (nil != self)
    {
        water = [CCSprite spriteWithFile:@"water.png"];
        water.position = ccp(240, -80);
        [self addChild:water];
        
        self.isTouchEnabled = YES;
        
        waterTick = 0;
        wave = NO;
    }
    
    return self;
}

- (void)onEnterTransitionDidFinish
{
    [super onEnterTransitionDidFinish];
    
    [self scheduleDelayedAction:^{
        wave = YES;
    } delay:3.0f];
}

- (void)tick:(ccTime)dt
{
    [super tick:dt];
    
    if (wave)
    {
        waterTick++;
        
        water.position = ccp(240, 160 * sin(waterTick / (36 * M_PI)) - 80);
        
        if (waterTick == 180)
        {
            wave = NO;
            
            [self scheduleDelayedAction:^{
                wave = YES;
            } delay:10.0f];
        } else if (waterTick == 360)
        {
            wave = NO;
            waterTick = 0;
        }
    }
    
    if (jump)
    {
        jumpTick++;
        
        cart.sprite.position = ccp(cart.sprite.position.x, MAX(100 * sin(jumpTick / (2 * M_PI)) + 22, water.position.y+80+11));
        
        if (jumpTick == 20)
        {
            jump = NO;
            jumpTick = 0;
        }
    } else {
        cart.sprite.position = ccp(cart.sprite.position.x, MAX(22, water.position.y+80+11));
    }
}

- (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch* touch = [touches anyObject];
    gestureStartPoint = [touch locationInView:nil];
}

- (void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch* touch = [touches anyObject];
    CGPoint gestureCurrentPosition = [touch locationInView:nil];
    CGFloat angle = atan2f(gestureCurrentPosition.y - gestureStartPoint.y, gestureCurrentPosition.x - gestureStartPoint.x);
    CGFloat distance = sqrt(powf((gestureCurrentPosition.x - gestureStartPoint.x),2) + powf((gestureCurrentPosition.y - gestureStartPoint.y),2));
    
    if ((distance >= kMinimumGestureLength) && (angle >= expectedAngle - M_PI_4) && (angle <= expectedAngle + M_PI_4) && (cart.sprite.position.y == 22))
    {
        jump = YES;
    }
}

- (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration
{
    [super accelerometer:accelerometer didAccelerate:acceleration];
    
    expectedAngle = acceleration.y*M_PI_2;
}

@end