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main_sdl.c
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main_sdl.c
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/*
Copyright (C) 2003 - Derek John Evans
Copyright (C) 2023 - EXL
This file is part of Yeti3D Portable Engine
Yeti3D is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Original Source: 2003 - Derek J. Evans <derek@theteahouse.com.au>
Prepared for public release: 10/24/2003 - Derek J. Evans <derek@theteahouse.com.au>
*/
/*
** Name: Yeti3D
** Desc: GBA port
** Auth: Derek Evans
**
** Copyright (C) 2003, Derek Evans
**
** YY YY EEEEEE TTTTTT IIIIII 33333 DDDDD
** YY YY EE TT II 33 DD DD
** YYYY EEEE TT II 333 DD DD
** YY EE TT II 33 DD DD
** YY EEEEEE TT IIIIII 33333 DDDDD
*/
#include "yeti.h"
#include "game.h"
#include <stdio.h>
#include <stdlib.h>
#include <SDL/SDL.h>
static SDL_Surface *video;
static SDL_Surface *surface;
static int quit_loop = 0;
static yeti_t *yeti;
static texture_t *res_tex = NULL;
static rgb555_t (*res_lua)[256] = NULL;
int *reciprocal = NULL;
int *sintable = NULL;
#define SPRITE_0_SIZE 1430
#define SPRITE_BALL_SIZE 32772
u16 *spr_00 = NULL;
u16 *spr_01 = NULL;
u16 *spr_02 = NULL;
u16 *spr_03 = NULL;
u16 *spr_ball1 = NULL;
sprite_t sprites[YETI_SPRITE_MAX];
rom_map_t *e1m1 = NULL;
void read_resourse_files(void) {
FILE *res_file;
int readen;
readen = 0;
res_tex = (texture_t *) malloc(sizeof(texture_t) * YETI_TEXTURE_MAX);
res_file = fopen("Yeti3D.tex", "rb");
readen = fread(res_tex, sizeof(texture_t) * YETI_TEXTURE_MAX, 1, res_file);
fclose(res_file);
if (readen == 0) {
fprintf(stderr, "Error: cannot read 'Yeti3D.tex' resource file.\n");
}
res_lua = (rgb555_t (*)[256]) malloc(sizeof(lua_t));
res_file = fopen("Yeti3D.lua", "rb");
readen = fread(res_lua, sizeof(lua_t), 1, res_file);
fclose(res_file);
if (readen == 0) {
fprintf(stderr, "Error: cannot read 'Yeti3D.lua' resource file.\n");
}
reciprocal = (int *) malloc(sizeof(int) * YETI_RECIPROCAL_MAX);
res_file = fopen("Yeti3D.rec", "rb");
readen = fread(reciprocal, sizeof(int) * YETI_RECIPROCAL_MAX, 1, res_file);
fclose(res_file);
if (readen == 0) {
fprintf(stderr, "Error: cannot read 'Yeti3D.rec' resource file.\n");
}
sintable = (int *) malloc(sizeof(int) * YETI_SINTABLE_MAX);
res_file = fopen("Yeti3D.sin", "rb");
readen = fread(sintable, sizeof(int) * YETI_SINTABLE_MAX, 1, res_file);
fclose(res_file);
if (readen == 0) {
fprintf(stderr, "Error: cannot read 'Yeti3D.sin' resource file.\n");
}
spr_00 = (u16 *) malloc(SPRITE_0_SIZE);
spr_01 = (u16 *) malloc(SPRITE_0_SIZE);
spr_02 = (u16 *) malloc(SPRITE_0_SIZE);
spr_03 = (u16 *) malloc(SPRITE_0_SIZE);
spr_ball1 = (u16 *) malloc(SPRITE_BALL_SIZE);
res_file = fopen("Yeti3D.spr", "rb");
readen = fread(spr_00, SPRITE_0_SIZE, 1, res_file);
readen = fread(spr_01, SPRITE_0_SIZE, 1, res_file);
readen = fread(spr_02, SPRITE_0_SIZE, 1, res_file);
readen = fread(spr_03, SPRITE_0_SIZE, 1, res_file);
readen = fread(spr_ball1, SPRITE_BALL_SIZE, 1, res_file);
fclose(res_file);
if (readen == 0) {
fprintf(stderr, "Error: cannot read 'Yeti3D.spr' resource file.\n");
}
sprites[0] = spr_00;
sprites[1] = spr_01;
sprites[2] = spr_02;
sprites[3] = spr_03;
sprites[4] = spr_ball1;
e1m1 = (rom_map_t *) malloc(sizeof(rom_map_t));
res_file = fopen("Yeti3D.map", "rb");
readen = fread(e1m1, sizeof(rom_map_t), 1, res_file);
fclose(res_file);
if (readen == 0) {
fprintf(stderr, "Error: cannot read 'Yeti3D.map' resource file.\n");
}
}
void sdl_init(void) {
#define w YETI_VIEWPORT_WIDTH
#define h YETI_VIEWPORT_HEIGHT
SDL_Init(SDL_INIT_VIDEO);
video = SDL_SetVideoMode(w, h, 16, SDL_HWSURFACE);
surface = SDL_CreateRGBSurface(SDL_HWPALETTE, w, h, 16, 0xF800, 0x07E0, 0x001F, 0x0000); // RGB565
// surface = SDL_CreateRGBSurface(SDL_HWPALETTE, w, h, 16, 0x7C00, 0x03E0, 0x001F, 0x0000); // RGB555
// surface = SDL_CreateRGBSurface(SDL_HWPALETTE, w, h, 16, 0x001F, 0x03E0, 0x7C00, 0x0000); // BGR555
#undef h
#undef w
}
void check_keys(void) {
Uint8 * keyboard = SDL_GetKeyState(NULL);
yeti->keyboard.a = keyboard[SDLK_z];
yeti->keyboard.b = keyboard[SDLK_x];
yeti->keyboard.select = keyboard[SDLK_ESCAPE];
yeti->keyboard.right = keyboard[SDLK_RIGHT];
yeti->keyboard.left = keyboard[SDLK_LEFT];
yeti->keyboard.up = keyboard[SDLK_UP];
yeti->keyboard.down = keyboard[SDLK_DOWN];
yeti->keyboard.l = keyboard[SDLK_a];
yeti->keyboard.r = keyboard[SDLK_s];
}
int main(int argc, char *argv[]) {
SDL_Event event;
read_resourse_files();
sdl_init();
yeti = (yeti_t *) malloc(sizeof(yeti_t));
yeti_init(
yeti,
NULL,
(framebuffer_t *) surface->pixels,
res_tex,
NULL,
res_lua
);
game_init(yeti);
while (!quit_loop) {
if (yeti->keyboard.select) {
quit_loop = 1;
}
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_QUIT:
quit_loop = 1;
break;
}
}
yeti_tick(yeti);
yeti_draw(yeti);
check_keys();
SDL_BlitSurface(surface, NULL, video, NULL);
SDL_Flip(video);
SDL_Delay(1000 / YETI_VIEWPORT_INTERVAL);
}
free(yeti);
free(res_tex);
free(res_lua);
free(reciprocal);
free(sintable);
free(spr_00);
free(spr_01);
free(spr_02);
free(spr_03);
free(spr_ball1);
free(e1m1);
SDL_FreeSurface(surface);
SDL_FreeSurface(video);
SDL_Quit();
return 0;
}