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#include <math.h>

dbSpriteOne(missileID,missileX,missileY,missileImage);
dbSpriteTwo(targetID,targetX,targetY,targetImage);
/*
.
.
.
*/

distance=sqrt((targetX - missileX)*(targetX - missileX) + (targetY - missileY)*(targetY - missileY));

if(distance < range){
  fire_ze_missiles();
}

#define ECOIII_ID  (113)
#define ECOIII_SPEED  (.100000000)
typedef struct ECOIII_
{
	WORD id;				// Enemy id, usually same as image id
	WORD x;					// x coord of enemy
	WORD y;					// y coord of enemy
	float speed;			// velocity if we are using dbMoveSprite

	WORD Player_To_Follow;	// Player Id to follow
}ECOIII;

void InitializeECOIII(ECOIII *ccc, WORD Id, WORD x, WORD y, float vel)	// Initializes the starting points for the enemy
{
	ccc->id				= Id;
	ccc->x				= x;
	ccc->y				= y;
	ccc->speed			= vel;
	ccc->Player_To_Follow = NONE;
	dbSprite(ccc->id,ccc->x,ccc->y,ccc->id);
	// Need to offset the sprite so that we can rotate at its center.
	dbOffsetSprite(ccc->id,(dbSpriteWidth(ccc->id) / 2), (dbSpriteHeight(ccc->id) / 2));
}

void UpdateECOIIIPosition(ECOIII *ccc)
{
	ccc->x = dbSpriteX(ccc->id);
	ccc->y = dbSpriteY(ccc->id);
}

void FollowPlayer(ECOIII *ccc, WORD Player) // Sets the Pid of that player to follow
{
	ccc->Player_To_Follow = Player;
}

void FreeECOIIIMemory(ECOIII *ccc)
{
	dbDeleteSprite(ccc->id);		// this deletes the image we allocated
	dbDeleteSprite(PLAYER_ID);	// We need to delete the player id sprite to free the memory
	free(ccc);					// this deletes the memory we allocated
}


// So there are a few ways to track a player //
// you can use the traditional way with dbSprite //
// Or you can use dbMoveSprite for better looking movement //

void MoveECOIII(ECOIII *ccc)
{
	if(dbSpriteX(ccc->Player_To_Follow) > ccc->x)// so player 1 x coord is greater than the enemy's coord 
	{
		// now we need to increase the x coord of the enemy to get to the player
		// remember that we need to rotate the sprite in order to go right and left
		ccc->x++;
		dbRotateSprite(ccc->id, RIGHT_ANGLE);
		dbSprite(ccc->id,ccc->x,ccc->y,ECOIII_ID);
		dbRotateSprite(ccc->id, RESET_ANGLE);
	}
	if(dbSpriteX(ccc->Player_To_Follow) < ccc->x)// Player 1 coord is less than the enemy so we need to move the other way now
	{
		ccc->x--;
		dbRotateSprite(ccc->id, LEFT_ANGLE);
		dbSprite(ccc->id,ccc->x,ccc->y,ECOIII_ID);
		dbRotateSprite(ccc->id, RESET_ANGLE);
	}
	if(dbSpriteY(ccc->Player_To_Follow) > ccc->y)
	{
		ccc->y++;
		dbSprite(ccc->id, ccc->x, ccc->y, ECOIII_ID);
	}
	if(dbSpriteY(ccc->Player_To_Follow) < ccc->y)
	{
		ccc->y--;
		dbSprite(ccc->id, ccc->x, ccc->y, ECOIII_ID);
	}
}


// So in this function we will get the angle of the player for a more fluid movement
void MoveECOIIIWithAngle(ECOIII *ccc)
{
	int PlayerX = dbSpriteX(ccc->Player_To_Follow);
	int PlayerY = dbSpriteY(ccc->Player_To_Follow);
	float Angle = dbWrapValue(dbAtanFull(PlayerX - ccc->x, ccc->y - PlayerY));
	dbRotateSprite(ccc->id, Angle);

	if(dbSpriteCollision(ccc->id, ccc->Player_To_Follow) == 1)
	{
		// if the enemy sprite collides with the player sprite we need to stop it
		dbMoveSprite(ccc->id, 0);
	}
	else
	{
		// if the enemy isn't colliding with any sprites let's move!
		dbMoveSprite(ccc->id, ccc->speed);
	}
	
}

void DarkGDK ( void )
{ 
ECOIII  *ccc = (ECOIII*)  malloc(sizeof(ECOIII));

dbLoadImage("ECOIII.bmp", ECOIII_ID);

InitializeECOIII(ccc,ECOIII_ID,150,20,ECOIII_SPEED);

FollowPlayer (ccc,FBASEI_ID);

while ( LoopGDK( ) )
	{

UpdateECOIIIPosition(ccc);// Updates enemy x and y coord
MoveECOIIIWithAngle(ccc);  // Moves the enemy to the player
FreeECOIIIMemory(ccc);

void DarkGDK ( void )
{
int kkkkk=4,DD = 5000,HHH =113;
int GGG = 5;
 
int q1 = 8;
int coll1 = 0;	
	while ( LoopGDK( ) )
	{
  {
if(GGG == 5)
	{
				dbSprite(DD, dbSpriteX(HHH),dbSpriteY(HHH), DD);
				GGG = 0;
	}
				}

					
	
if(GGG < 5)
{
dbLoadImage("EP.bmp", 5000);
			dbMoveSprite(DD, 20);//then make it move
			GGG++;

	
}


if (dbSpriteCollision(EP1_ID,FCOI_ID))
{
	q1 += -1;
  dbLoadImage("EP.bmp", 449);
InitializeEP1(ep,EP1_ID,dbSpriteX(HHH),dbSpriteY(HHH),EP1_SPEED);
FollowPlayer (ep,FCOI_ID);

}
		
  if(dbImageExist(FCOI_ID)) {
  coll1 = dbSpriteCollision(EP1_ID,FCOI_ID);
  if(q1==0){
    
dbDeleteSprite(FCOI_ID);
  }
  }