mirror of
https://github.com/dwsJason/xrick2gs.git
synced 2024-09-12 22:54:34 +00:00
81 lines
1.5 KiB
C
81 lines
1.5 KiB
C
/*
|
|
* xrick/src/e_bullet.c
|
|
*
|
|
* Copyright (C) 1998-2002 BigOrno (bigorno@bigorno.net). 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 "system.h"
|
|
#include "game.h"
|
|
#include "ents.h"
|
|
#include "e_bullet.h"
|
|
|
|
#include "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(WAV_BULLET, 1);
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* Entity action
|
|
*
|
|
* ASM 1883, 0F97
|
|
*/
|
|
void
|
|
e_bullet_action(UNUSED(U8 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 */
|
|
|
|
|