ascension: test/snake.c@5a592625e2f9 (annotated)

test/snake.c@5a592625e2f9 (annotated)

test/snake.c

Tue, 16 Apr 2024 22:06:17 +0200

author: Mike Becker <universe@uap-core.de>
date: Tue, 16 Apr 2024 22:06:17 +0200
changeset 62: 5a592625e2f9
parent 60: 3954c551ded3
child 63: e3cacdd636e4
permissions: -rw-r--r--

left and right are to distinguish...

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  * Copyright 2023 Mike Becker. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include "ascension/core.h"
 #include <ascension/ui.h>
 #include <cx/printf.h>
 static void update_fps_counter(AscSceneNode *node) {
     static uint64_t last_fps = 0;
     static uint64_t debounce = ASC_NANOS_SECOND - 1;
     debounce += asc_context.frame_nanos;
     // only update text every seconds
     if (debounce >= ASC_NANOS_SECOND) {
         debounce = 0;
         uint64_t fps = ASC_NANOS_SECOND;
         fps /= asc_context.frame_nanos;
         if (fps != last_fps) {
             last_fps = fps;
             asc_text_printf(node, "%"PRIu64" FPS", fps);
         }
     }
 }
 static void create_fps_counter(void) {
     asc_set_font(asc_font(ASC_FONT_REGULAR, 24));
     asc_ink_rgb(255, 0, 0);
     AscSceneNode* node = asc_text( .x = 10, .y = 10 );
     asc_scene_add_behavior(node, update_fps_counter);
     asc_add_ui_node(node);
 }
 static void update_score_counter(AscSceneNode *node) {
     // tie to bottom right of the screen
     if (asc_window_active->resized) {
         asc_vec2i bottom_right = asc_window_active->dimensions;
         asc_vec2i scale = asc_get_scale2d(node);
         asc_set_position2d(
                 node,
                 bottom_right.x - scale.width - 10,
                 bottom_right.y - scale.height - 10
         );
     }
 }
 static void create_score_counter(void) {
     asc_set_font(asc_font(ASC_FONT_BOLD, 14));
     asc_ink_rgb(0, 255, 0);
     AscSceneNode* node = asc_text(.text = "Score: 0" );
     asc_scene_add_behavior(node, update_score_counter);
     asc_add_ui_node(node);
 }
 int main(int argc, char** argv) {
     asc_context_initialize();
     if (asc_has_error()) {
         SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR,
                 "Fatal Error",asc_get_error(),NULL);
         return 1;
     }
     // create window
     AscWindowSettings settings;
     asc_window_settings_init_defaults(&settings);
     settings.title = "Snake";
     AscWindow *window = asc_window_initialize(0, &settings);
     // create UI elements
     create_fps_counter();
     create_score_counter();
     // Main Loop
     do {
         // quit application on any error
         if (asc_has_error()) {
             SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR,
                     "Fatal Error", asc_get_error(), window->window);
             asc_clear_error();
             break;
         }
     } while (asc_loop_next());
     asc_context_destroy();
     return 0;
 }

Mercurial > hg > ascension / annotate

test/snake.c@5a592625e2f9 (annotated)

test/snake.c