comparison: test/snake.c
test/snake.c
- changeset 33
- e7ddb52facd3
- parent 32
- 86468a71dd73
- child 36
- e26b4ac1661c
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| 32:86468a71dd73 | 33:e7ddb52facd3 |
|---|---|
| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * Copyright 2023 Mike Becker. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * | |
| 11 * 2. Redistributions in binary form must reproduce the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer in the | |
| 13 * documentation and/or other materials provided with the distribution. | |
| 14 * | |
| 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 25 * POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 #include <ascension/ascension.h> | |
| 29 #include <cx/printf.h> | |
| 30 | |
| 31 static void update_fps_counter(AscSceneNode *node) { | |
| 32 // addition and multiplication is more efficient testing for zero | |
| 33 // at an unnoticible cost of imprecision | |
| 34 static unsigned last_fps = 0u; | |
| 35 static unsigned debounce = 999u; | |
| 36 unsigned fps = 1000u; | |
| 37 debounce += asc_context.elapsed_millis; | |
| 38 if (debounce >= 1000u) { | |
| 39 debounce = 0; | |
| 40 fps /= asc_context.elapsed_millis; | |
| 41 if (fps != last_fps) { | |
| 42 last_fps = fps; | |
| 43 snprintf(((AscText*)node)->text, 9, "%u FPS", fps); | |
| 44 asc_node_update(node); | |
| 45 } | |
| 46 } | |
| 47 } | |
| 48 | |
| 49 static void create_fps_counter(void) { | |
| 50 asc_set_font(asc_font(ASC_FONT_REGULAR, 24)); | |
| 51 asc_ink_rgb(255, 0, 0); | |
| 52 AscText* text = asc_text(10, 10, "XXXXX FPS"); | |
| 53 asc_scene_add_behavior(asc_node(text), update_fps_counter); | |
| 54 } | |
| 55 | |
| 56 int main(int argc, char** argv) { | |
| 57 asc_context_initialize(); | |
| 58 if (asc_has_error()) { | |
| 59 SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, | |
| 60 "Fatal Error",asc_get_error(),NULL); | |
| 61 return 1; | |
| 62 } | |
| 63 | |
| 64 AscWindowSettings settings; | |
| 65 asc_window_settings_init_defaults(&settings); | |
| 66 settings.title = "Sandbox Application"; | |
| 67 | |
| 68 AscWindow *window = asc_window_initialize(0, &settings); | |
| 69 asc_shader_initialize_predefined(); | |
| 70 | |
| 71 // create fps counter | |
| 72 create_fps_counter(); | |
| 73 | |
| 74 // Main Loop | |
| 75 do { | |
| 76 // quit application on any error | |
| 77 if (asc_has_error()) { | |
| 78 SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, | |
| 79 "Fatal Error", asc_get_error(), window->window); | |
| 80 asc_clear_error(); | |
| 81 break; | |
| 82 } | |
| 83 } while (asc_loop_next()); | |
| 84 | |
| 85 asc_context_destroy(); | |
| 86 return 0; | |
| 87 } | |
| 88 |
