mirror of
https://github.com/nunuhara/xsystem4.git
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Nunuhara Cabbage
ee0f72ae2e
Pull graphics code into sact_graphics.c. Implement Key_ClearFlag so that SACT2's own input handling code works properly.
154 lines
3.2 KiB
C
154 lines
3.2 KiB
C
/* Copyright (C) 2019 Nunuhara Cabbage <nunuhara@haniwa.technology>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://gnu.org/licenses/>.
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*/
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#include "system4.h"
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#include "sact.h"
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#include "cg.h"
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#include "input.h"
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#include "sdl_core.h"
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static struct sact_sprite **sprites = NULL;
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static int nr_sprites = 0;
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TAILQ_HEAD(listhead, sact_sprite) sprite_list =
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TAILQ_HEAD_INITIALIZER(sprite_list);
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struct sact_sprite *sact_get_sprite(int sp)
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{
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if (sp >= nr_sprites)
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return NULL;
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return sprites[sp];
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}
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static struct sact_sprite *alloc_sprite(int sp)
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{
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sprites[sp] = xcalloc(1, sizeof(struct sact_sprite));
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return sprites[sp];
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}
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static void sprite_register(struct sact_sprite *sp)
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{
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struct sact_sprite *p;
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TAILQ_FOREACH(p, &sprite_list, entry) {
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if (p->z > sp->z) {
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TAILQ_INSERT_BEFORE(p, sp, entry);
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return;
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}
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}
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TAILQ_INSERT_TAIL(&sprite_list, sp, entry);
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}
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static void sprite_unregister(struct sact_sprite *sp)
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{
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TAILQ_REMOVE(&sprite_list, sp, entry);
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}
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int sact_Init(void)
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{
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sdl_initialize();
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return 1;
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}
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int sact_Update(void)
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{
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handle_events();
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struct sact_sprite *p;
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TAILQ_FOREACH(p, &sprite_list, entry) {
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if (!p->show)
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continue;
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if (!p->cg->s)
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p->cg->s = sdl_make_rectangle(p->rect.w, p->rect.h, &p->color);
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sdl_draw_cg(p->cg, &p->rect);
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}
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sdl_update_screen();
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return 1;
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}
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int sact_SP_GetUnuseNum(int min)
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{
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for (int i = min; i < nr_sprites; i++) {
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if (!sprites[i])
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return i;
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}
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int n = max(min, nr_sprites);
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nr_sprites = n + 256;
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sprites = xrealloc(sprites, sizeof(struct sact_sprite*) * nr_sprites);
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for (int i = n; i < nr_sprites; i++)
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sprites[i] = NULL;
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return n;
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}
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int sact_SP_GetMaxZ(void)
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{
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if (TAILQ_EMPTY(&sprite_list))
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return 0;
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return TAILQ_LAST(&sprite_list, listhead)->z;
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}
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int sact_SP_SetCG(int sp_no, int cg_no)
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{
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struct sact_sprite *sp = sact_get_sprite(sp_no);
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if (!sp || !cg_load(sp->cg, cg_no - 1))
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return 0;
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sp->rect.w = sp->cg->s->w;
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sp->rect.h = sp->cg->s->h;
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return 1;
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}
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int sact_SP_Create(int sp_no, int width, int height, int r, int g, int b, int a)
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{
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struct sact_sprite *sp = sact_get_sprite(sp_no);
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if (!sp) {
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sp = alloc_sprite(sp_no);
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}
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sp->color = (SDL_Color) { .r = r, .g = g, .b = b, .a = a };
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sp->rect.w = width;
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sp->rect.h = height;
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if (sp->cg) {
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cg_reinit(sp->cg);
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} else {
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sp->cg = cg_init();
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sprite_register(sp);
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}
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return 1;
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}
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int sact_SP_Delete(int sp_no)
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{
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struct sact_sprite *sp = sact_get_sprite(sp_no);
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if (!sp) return 0;
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sprite_unregister(sp);
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cg_free(sp->cg);
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sp->cg = NULL;
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return 1;
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}
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int sact_SP_SetZ(int sp_no, int z)
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{
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struct sact_sprite *sp = sact_get_sprite(sp_no);
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if (!sp || !sp->cg) return 0;
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sprite_unregister(sp);
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sp->z = z;
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sprite_register(sp);
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return 1;
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}
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