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/*
* xrick/e_bullet.c
*
* Copyright (C) 1998-2002 BigOrno (bigorno@bigorno.net).
* Copyright (C) 2008-2014 Pierluigi Vicinanza.
* All rights reserved.
*
* The use and distribution terms for this software are contained in the file
* named README, which can be found in the root of this distribution. By
* using this software in any fashion, you are agreeing to be bound by the
* terms of this license.
*
* You must not remove this notice, or any other, from this software.
*/
#include "xrick/e_bullet.h"
#include "xrick/system/system.h"
#include "xrick/game.h"
#include "xrick/ents.h"
#include "xrick/maps.h"
/*
* public vars (for performance reasons)
*/
S8 e_bullet_offsx;
S16 e_bullet_xc, e_bullet_yc;
/*
* Initialize bullet
*/
void
e_bullet_init(U16 x, U16 y)
{
E_BULLET_ENT.n = 0x02;
E_BULLET_ENT.x = x;
E_BULLET_ENT.y = y + 0x0006;
if (game_dir == LEFT) {
e_bullet_offsx = -0x08;
E_BULLET_ENT.sprite = 0x21;
}
else {
e_bullet_offsx = 0x08;
E_BULLET_ENT.sprite = 0x20;
}
#ifdef ENABLE_SOUND
syssnd_play(soundBullet, 1);
#endif
}
/*
* Entity action
*
* ASM 1883, 0F97
*/
void
e_bullet_action(U8 e/*unused*/)
{
(void)e;
/* move bullet */
E_BULLET_ENT.x += e_bullet_offsx;
if (E_BULLET_ENT.x <= -0x10 || E_BULLET_ENT.x > 0xe8)
{
/* out: deactivate */
E_BULLET_ENT.n = 0;
}
else
{
/* update bullet center coordinates */
e_bullet_xc = E_BULLET_ENT.x + 0x0c;
e_bullet_yc = E_BULLET_ENT.y + 0x05;
if (map_eflg[map_map[e_bullet_yc >> 3][e_bullet_xc >> 3]] & MAP_EFLG_SOLID)
{
/* hit something: deactivate */
E_BULLET_ENT.n = 0;
}
}
}
/* eof */
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