mirror of
https://github.com/nunuhara/xsystem4.git
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Nunuhara Cabbage
4120e344f1
Create pixel-only textures as RGB (no alpha). This fixes some issues with DrawGraph functions writing to an alpha channel that shouldn't exist (e.g. causes black screen in Haru Urare). This doesn't fix the analogous issue for CGs which shouldn't have an alpha channel.
135 lines
5.3 KiB
C
135 lines
5.3 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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#ifndef SYSTEM4_SPRITE_H
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#define SYSTEM4_SPRITE_H
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#include <stdbool.h>
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#include <SDL.h>
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#include "queue.h"
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#include "gfx/gfx.h"
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struct string;
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struct page;
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union vm_value;
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struct sact_sprite {
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TAILQ_ENTRY(sact_sprite) entry;
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// The sprite's texture (CG or solid color). Initialized lazily.
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struct texture texture;
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// If no CG is attached to the sprite, the solid color to fill with.
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SDL_Color color;
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// The position and dimensions of the sprite.
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Rectangle rect;
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// Arbitrary text can be attached to the sprite. This is rendered on a
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// separate texture and overlayed.
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struct {
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struct string *str;
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struct texture texture;
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Point home;
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Point pos;
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int char_space;
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int line_space;
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} text;
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// The Z-layer of the sprite within the scene.
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int z;
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// This flag indicates that pixel data has been attached to a sprite; it
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// does NOT guarantee that the texture is initialized.
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bool has_pixel;
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bool has_alpha;
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// This flag indicates whether or not the sprite is included in the
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// the current scene. A sprite should be in the scene if there is pixel
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// or text data attached to it and it is not hidden.
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bool in_scene;
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// When a sprite is hidden, it is removed from the scene. Attaching new
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// pixel data does not alter the state of this flag.
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bool hidden;
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// The sprite handle.
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int no;
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// The CG number attached to the sprite.
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int cg_no;
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};
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extern bool sact_dirty;
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void sprite_register(struct sact_sprite *sp);
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void sprite_unregister(struct sact_sprite *sp);
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static inline void sprite_dirty(struct sact_sprite *sp)
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{
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if (!sp)
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return;
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sact_dirty = true;
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if (sp->hidden) {
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sprite_unregister(sp);
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} else if (sp->has_pixel || sp->text.texture.handle) {
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sprite_register(sp);
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}
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}
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static inline void scene_dirty(void)
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{
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sact_dirty = true;
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}
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void sprite_free(struct sact_sprite *sp);
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void sprite_render_scene(void);
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void sprite_flip(void);
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struct texture *sprite_get_texture(struct sact_sprite *sp);
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int sprite_set_wp(int cg_no);
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int sprite_set_wp_color(int r, int g, int b);
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int sprite_set_cg(struct sact_sprite *sp, int cg_no);
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int sprite_set_cg_from_file(struct sact_sprite *sp, const char *path);
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void sprite_init(struct sact_sprite *sp, int w, int h, int r, int g, int b, int a);
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int sprite_get_max_z(void);
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void sprite_set_pos(struct sact_sprite *sp, int x, int y);
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void sprite_set_x(struct sact_sprite *sp, int x);
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void sprite_set_y(struct sact_sprite *sp, int y);
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void sprite_set_z(struct sact_sprite *sp, int z);
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int sprite_get_blend_rate(struct sact_sprite *sp);
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void sprite_set_blend_rate(struct sact_sprite *sp, int rate);
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void sprite_set_show(struct sact_sprite *sp, bool show);
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int sprite_set_draw_method(struct sact_sprite *sp, int method);
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int sprite_get_draw_method(struct sact_sprite *sp);
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int sprite_exists_alpha(struct sact_sprite *sp);
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static inline int sprite_get_pos_x(struct sact_sprite *sp) { return sp->rect.x; }
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static inline int sprite_get_pos_y(struct sact_sprite *sp) { return sp->rect.y; }
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static inline int sprite_get_width(struct sact_sprite *sp) { return sp->rect.w; }
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static inline int sprite_get_height(struct sact_sprite *sp) { return sp->rect.h; }
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static inline int sprite_get_z(struct sact_sprite *sp) { return sp->z; }
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static inline int sprite_get_show(struct sact_sprite *sp) { return !sp->hidden; }
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void sprite_set_text_home(struct sact_sprite *sp, int x, int y);
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void sprite_set_text_line_space(struct sact_sprite *sp, int px);
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void sprite_set_text_char_space(struct sact_sprite *sp, int px);
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void sprite_set_text_pos(struct sact_sprite *sp, int x, int y);
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void sprite_text_draw(struct sact_sprite *sp, struct string *text, struct text_metrics *tm);
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void sprite_text_clear(struct sact_sprite *sp);
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void sprite_text_home(struct sact_sprite *sp, int size);
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void sprite_text_new_line(struct sact_sprite *sp, int size);
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void sprite_text_copy(struct sact_sprite *dsp, struct sact_sprite *ssp);
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static inline int sprite_get_text_home_x(struct sact_sprite *sp) { return sp->text.home.x; }
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static inline int sprite_get_text_home_y(struct sact_sprite *sp) { return sp->text.home.y; }
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static inline int sprite_get_text_char_space(struct sact_sprite *sp) { return sp->text.char_space; }
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static inline int sprite_get_text_pos_x(struct sact_sprite *sp) { return sp->text.pos.x; }
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static inline int sprite_get_text_pos_y(struct sact_sprite *sp) { return sp->text.pos.y; }
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static inline int sprite_get_text_line_space(struct sact_sprite *sp) { return sp->text.line_space; }
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bool sprite_is_point_in(struct sact_sprite *sp, int x, int y);
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bool sprite_is_point_in_rect(struct sact_sprite *sp, int x, int y);
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int sprite_get_amap_value(struct sact_sprite *sp, int x, int y);
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void sprite_get_pixel_value(struct sact_sprite *sp, int x, int y, int *r, int *g, int *b);
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#endif /* SYSTEM4_SPRITE_H */
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