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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | pmbaty | 1 | /* |
| 2 | * src/e_bullet.c |
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| 3 | * |
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| 4 | * Copyright (C) 1998-2002 BigOrno (bigorno@bigorno.net). All rights reserved. |
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| 5 | * |
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| 6 | * The use and distribution terms for this software are contained in the file |
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| 7 | * named README, which can be found in the root of this distribution. By |
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| 8 | * using this software in any fashion, you are agreeing to be bound by the |
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| 9 | * terms of this license. |
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| 10 | * |
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| 11 | * You must not remove this notice, or any other, from this software. |
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| 12 | */ |
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| 13 | |||
| 14 | #include "system.h" |
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| 15 | #include "game.h" |
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| 16 | #include "ents.h" |
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| 17 | #include "e_bullet.h" |
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| 18 | |||
| 19 | #include "maps.h" |
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| 20 | |||
| 21 | |||
| 22 | /* |
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| 23 | * public vars (for performance reasons) |
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| 24 | */ |
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| 25 | S8 e_bullet_offsx; |
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| 26 | S16 e_bullet_xc, e_bullet_yc; |
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| 27 | |||
| 28 | |||
| 29 | /* |
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| 30 | * Initialize bullet |
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| 31 | */ |
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| 32 | void e_bullet_init (U16 x, U16 y) |
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| 33 | { |
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| 34 | E_BULLET_ENT.n = 0x02; |
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| 35 | E_BULLET_ENT.x = x; |
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| 36 | E_BULLET_ENT.y = y + 0x0006; |
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| 37 | |||
| 38 | if (game_dir == LEFT) |
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| 39 | { |
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| 40 | e_bullet_offsx = -0x08; |
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| 41 | E_BULLET_ENT.sprite = 0x21; |
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| 42 | } |
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| 43 | else |
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| 44 | { |
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| 45 | e_bullet_offsx = 0x08; |
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| 46 | E_BULLET_ENT.sprite = 0x20; |
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| 47 | } |
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| 48 | |||
| 49 | syssnd_play (WAV_BULLET, 1); |
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| 50 | } |
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| 51 | |||
| 52 | |||
| 53 | /* |
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| 54 | * Entity action |
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| 55 | * |
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| 56 | * ASM 1883, 0F97 |
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| 57 | */ |
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| 58 | void e_bullet_action (U8 e) |
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| 59 | { |
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| 60 | /* move bullet */ |
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| 61 | E_BULLET_ENT.x += e_bullet_offsx; |
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| 62 | |||
| 63 | if (E_BULLET_ENT.x <= 0x01 || E_BULLET_ENT.x > 0xe8) |
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| 64 | E_BULLET_ENT.n = 0; // out: deactivate |
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| 65 | else |
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| 66 | { |
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| 67 | /* update bullet center coordinates */ |
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| 68 | e_bullet_xc = E_BULLET_ENT.x + 0x0c; |
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| 69 | e_bullet_yc = E_BULLET_ENT.y + 0x05; |
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| 70 | |||
| 71 | if (map_eflg[map_map[e_bullet_yc >> 3][e_bullet_xc >> 3]] & MAP_EFLG_SOLID) |
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| 72 | E_BULLET_ENT.n = 0; // hit something: deactivate |
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| 73 | } |
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| 74 | } |