/*****************

  "ANIM.C"

  Sprite animation package

  27/1/99
  ScoTT Campbell

  ****************/

#include "../headers/anim.h"



/**************** Function Definitions ****************/


void InitialiseSpriteAnimation(sprite_anim_type* anim, GsSPRITE* spriteArray,
							   int arraySize, int startX, int startY, animation_type animType)
{
	anim->currentX = startX;
	anim->currentY = startY;

	anim->animationType = animType;
	printf("Anim type = %d\n", anim->animationType);

	anim->currentSprite = arraySize/2;
	printf("current sprite = %d\n", anim->currentSprite);

	anim->amountFrames = arraySize;
	printf("Frames = %d\n", anim->amountFrames);

	anim->sprites = spriteArray;

}/* InitialiseSpriteAnimation */




void UpdateCurrentSprite(sprite_anim_type* anim, int animationDirection)
{
	// Check if moving up or down array of sprites
	if(animationDirection < 0)	// down array
	{
		if(anim->currentSprite == 0)
		{
			if(anim->animationType == CONTINUOUS)
				// Loop to last element in array
				anim->currentSprite = anim->amountFrames - 1;
			
			else
			if(anim->animationType == NON_CONTINUOUS)
			{
				// leave current sprite
			}

		}
		
		else
			anim->currentSprite--;
	}

	else
	if(animationDirection > 0)	// up arry
	{
		if(anim->currentSprite == (anim->amountFrames - 1))
		{
			if(anim->animationType == CONTINUOUS)
				// Loop to first element in array
				anim->currentSprite = 0;
			
			else
			if(anim->animationType == NON_CONTINUOUS)
			{
				// leave current sprite
			}

		}

		else
			anim->currentSprite++;
	
	}

}/* UpdateCurrentSprite */




void UpdateSpriteAnimation(sprite_anim_type* anim, int animationDirection,
													int xAmount, int yAmount)
{
	anim->currentX += xAmount;
	anim->currentY += yAmount;

	UpdateCurrentSprite(anim, animationDirection);

}/* UpdateSpriteAnimation */




void MoveSpriteAnimation(sprite_anim_type* anim, int xAmount, int yAmount)
{
	anim->currentX += xAmount;
	anim->currentY += yAmount;

}/* MoveSpriteAnimation */




void DrawSpriteAnimation(sprite_anim_type* anim, GsOT* otPtr, int otPriority)
{
	GsSPRITE* currentSprite = &anim->sprites[anim->currentSprite];


	currentSprite->x = anim->currentX;
	currentSprite->y = anim->currentY;

	GsSortSprite(currentSprite, otPtr, otPriority);
	
	GsSortSprite(currentSprite, otPtr, otPriority);

}/* DisplaySpriteAnimation */


/************* End of Function Definitions **************/