//------------------------------------------------------------------------------
// File: bossone.c
// Author: George Bain
// Date: May 22, 1997
// Description: First boss related routines
// Copyright (C) 1997 George Bain, All Rights Reserved
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
// I N C L U D E S
//------------------------------------------------------------------------------

#include <libps.h>	   // standard Sony library
#include "gfx.h"
#include "bossone.h"


//------------------------------------------------------------------------------
// Function: DrawBossOne()
// Description: Register first boss sprite into the OT
// Parameters: none
// Returns: void
// Notes: N/A
//------------------------------------------------------------------------------

void DrawBossOne( void )
 {

    if( boss_one.state == BOSS_ALIVE )
	    GsSortFastSprite( &boss_one.sprite, &world_ordering_table[output_buffer_index], 0 );
       
 }// end DrawBossOne




//------------------------------------------------------------------------------
// Function: ControlBossOne()
// Description: Release the first boss based on a timer.  When boss
//              is destroyed continue onto the next level.
// Parameters: none
// Returns: void
// Notes: This needs improvement.
//------------------------------------------------------------------------------

void ControlBossOne( void )
 {
	static count=0;

	count++;

	if( (boss_one.state == BOSS_DEAD) && (GetRCnt(1) >= 65000) )
	  {
			boss_one.state = BOSS_ALIVE;
			boss_one.motion_speed = BOSS_SPEED;
			boss_one.dir = BOSS_LEFT;
			boss_one.sprite.x = SCREEN_WIDTH;
			boss_one.sprite.y = (SCREEN_HEIGHT/3);
			
	  }// end if
   
 }// end ControlBossOne


  		  

//------------------------------------------------------------------------------
// Function: MoveBossOne()
// Description: Move the first boss based on the state and AI
// Parameters: none
// Returns: void
// Notes: The AI for the boss needs much inprovement.
//------------------------------------------------------------------------------

void MoveBossOne( void )
 {

	 int index;

	 if( ( boss_one.state == BOSS_ALIVE) && (boss_one.dir == BOSS_LEFT) )
	   {
			 
		 boss_one.sprite.x += -(BOSS_SPEED+1);
		 boss_one.sprite.y += cos_look[boss_one.sprite.x];

		 if( boss_one.sprite.x <= 2 )
		     boss_one.dir = BOSS_RIGHT;	// change direction
         else
		 if( boss_one.sprite.y <= BOSS_HEIGHT )
		     boss_one.sprite.y +=1;

	   }// end if


	 if( ( boss_one.state == BOSS_ALIVE) && (boss_one.dir == BOSS_RIGHT) )
	   {
			 
		 boss_one.sprite.x += (BOSS_SPEED+2);
		 boss_one.sprite.y += 0;

		 if( boss_one.sprite.x >= (SCREEN_WIDTH-BOSS_WIDTH) )
			 boss_one.dir = BOSS_LEFT;	// change direction
		 else 
		 if( boss_one.sprite.y >= (SCREEN_HEIGHT-BOSS_HEIGHT) )
		     boss_one.sprite.y +=1;

	   }// end if

     
	 if( (rand()%10 == 1) && (boss_one.state) == BOSS_ALIVE)  {
		  StartMissiles( boss_one.sprite.x+4,boss_one.sprite.y+9, 
			             -MISSILE_SPEED*2, 0, 0,255,0, ENEMY_MISSILE );
		  StartMissiles( boss_one.sprite.x+4,boss_one.sprite.y+19, 
			             -MISSILE_SPEED*2, 0, 0,255,0, ENEMY_MISSILE );
	 }// end if
    
	 
	 if( (rand()%25 == 1) && (boss_one.state) == BOSS_ALIVE)
		  StartRockets( boss_one.sprite.x+4, boss_one.sprite.y+9 );
		 
 }// end MoveBossOne



//-----------------------------------EOF----------------------------------------