Mercurial > molko
view examples/example-drawable/main.c @ 314:d01e83210ca2
misc: update years
author | David Demelier <markand@malikania.fr> |
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date | Wed, 22 Sep 2021 07:22:20 +0200 |
parents | 3638b39ef2bf |
children |
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/* * example-drawable.c -- example on how to use automatic drawables * * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <stdio.h> #include <stdlib.h> #include <core/alloc.h> #include <core/animation.h> #include <core/core.h> #include <core/event.h> #include <core/game.h> #include <core/drawable.h> #include <core/key.h> #include <core/painter.h> #include <core/panic.h> #include <core/sys.h> #include <core/image.h> #include <core/sprite.h> #include <core/state.h> #include <core/texture.h> #include <core/util.h> #include <core/window.h> #include <ui/label.h> #include <ui/theme.h> #include <ui/ui.h> #define W 1280 #define H 720 #define PATH(r) util_pathf("%s/mlk-adventure/%s", sys_dir(SYS_DIR_DATA), r) static struct label help = { .x = 10, .y = 10, .text = "Keys: <Esc> to reset. Click anywhere to spawn a drawable.", .flags = LABEL_FLAGS_SHADOW }; static struct drawable_stack stack; /* * List of drawables for this example. * ----------------------------------------------------------------------------- */ /* 0: Explosion animation. */ static struct texture explosion_tex; static struct sprite explosion_sprite; struct explosion { struct animation anim; struct drawable dw; }; static void init(void) { if (core_init("fr.malikania", "drawable") < 0 || ui_init() < 0) panic(); if (window_open("Example - Drawable", W, H) < 0) panic(); /* 0: Explosion animation. */ if (image_open(&explosion_tex, PATH("sprites/explosion.png")) < 0) panic(); sprite_init(&explosion_sprite, &explosion_tex, 256, 256); } static int explosion_update(struct drawable *dw, unsigned int ticks) { struct explosion *ex = dw->data; return animation_update(&ex->anim, ticks); } static void explosion_draw(struct drawable *dw) { struct explosion *ex = dw->data; animation_draw(&ex->anim, ex->dw.x, ex->dw.y); } static void explosion_finish(struct drawable *dw) { free(dw->data); } static void spawn(int x, int y) { struct explosion *ex = alloc_new0(sizeof (*ex)); animation_init(&ex->anim, &explosion_sprite, 15); ex->dw.data = ex; ex->dw.x = x - (int)(explosion_sprite.cellw / 2); ex->dw.y = y - (int)(explosion_sprite.cellh / 2); ex->dw.update = explosion_update; ex->dw.draw = explosion_draw; ex->dw.finish = explosion_finish; drawable_stack_add(&stack, &ex->dw); } static void handle(struct state *st, const union event *ev) { (void)st; switch (ev->type) { case EVENT_KEYDOWN: switch (ev->key.key) { case KEY_ESCAPE: drawable_stack_finish(&stack); break; default: break; } break; case EVENT_CLICKDOWN: spawn(ev->click.x, ev->click.y); break; case EVENT_QUIT: game_quit(); break; default: break; } } static void update(struct state *st, unsigned int ticks) { (void)st; drawable_stack_update(&stack, ticks); } static void draw(struct state *st) { (void)st; painter_set_color(0xebede9ff); painter_clear(); label_draw(&help); drawable_stack_draw(&stack); painter_present(); } static void run(void) { struct state state = { .handle = handle, .update = update, .draw = draw }; game_push(&state); game_loop(); } static void quit(void) { window_finish(); ui_finish(); core_finish(); } int main(int argc, char **argv) { (void)argc; (void)argv; init(); run(); quit(); }