#import <stdlib.h>

#import "peanutsmodel.h"
#import "elephant.h"
#import "player.h"
#import "peanut.h"
#import "hole.h"

@implementation PeanutsModel

-(id) init
{
  [super init];

  elephant = [[[Elephant alloc] initAtX:0.9 y:0.5] autorelease];
  [self addSprite:elephant];

  player = [[[Player alloc] initAtX:0.1 y:0.5] autorelease];
  [self addSprite:player];

  [self makePeanut];

  score = 0;

  gameLength = DEFAULT_GAME_LENGTH;
    
  NSDate* currentDate = [NSDate date];
  startTime = [currentDate timeIntervalSince1970];

  return self;
}

-(int) getPlayerScore
{
  return score;
}

-(Peanut*) getPeanut
{
  return peanut;
}

-(Player*) getPlayer
{
	return player;
}

-(void) movePlayerXDir:(int)dx yDir:(int)dy
{
  [player moveDirX:dx y:dy];
}

-(void) makePeanut
{
  if (peanut != nil)
    {
      [self removeSprite:peanut];
    }

  double px = (double)random() / RAND_MAX;
  double py = (double)random() / RAND_MAX;

  peanut = [[[Peanut alloc] initAtX:px y:py] autorelease];

  [self addSprite:peanut];
}

-(int) getTimeLeft
{
  NSDate* currentDate = [NSDate date];
  NSTimeInterval currentTime = [currentDate timeIntervalSince1970];
  
  NSTimeInterval timeElapsed = currentTime - startTime;

  if (timeElapsed > gameLength)
    {
      return 0;
    }
  else
    {
      return (int)(gameLength - timeElapsed);
    }
}

-(void) update
{
  if ([self getTimeLeft] > 0)
    {
      [super update];
    }
}

-(void) handleCollisionSprite:(Sprite*)s1 with:(Sprite*) s2
{
  if ([s1 isMemberOfClass:[Peanut class]] || [s2 isMemberOfClass:[Peanut class]])
    {
      // swap to make s1 the one that ate the peanut

      if ([s1 isMemberOfClass:[Peanut class]])
	{
	  Sprite* temp = s1;
	  s1 = s2;
	  s2 = temp;
	}

      if ([s1 isMemberOfClass:[Player class]])
	{
	  // player ate peanut

	  int value = [(Peanut*)s2 getValue];
	  score += value;

	  [self makePeanut];
	  
	  // and add a value display when you make them
	}
      else if ([s1 isMemberOfClass:[Elephant class]])
	{
	  // elephant ate peanut

	  [(Elephant*)s1 eatPeanut];
	  [self makePeanut];
	}
      else
	{
	  // something else ran into the peanut
	}
    }
  else if ([s1 isMemberOfClass:[Elephant class]] && [s2 isMemberOfClass:[Player class]])
    {
      // player runs into elephant

      [(Player*)s2 trample];
    }
  else if([s2 isMemberOfClass:[Elephant class]] && [s1 isMemberOfClass:[Player class]])
    {
      // elephant tramples player

      [(Player*)s1 trample];
    }
  else if ([s1 isMemberOfClass:[Player class]] && [s2 isMemberOfClass:[Hole class]])
    {
      // player falls in hole

      [(Player*)s1 fallInHole];
      [self removeSprite:s2];
    }
  else if ([s2 isMemberOfClass:[Player class]] && [s1 isMemberOfClass:[Hole class]])
    {
      // hole attacks player

      [(Player*)s2 fallInHole];
      [self removeSprite:s1];
    }
}

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

@end