test/snake.c

Sun, 06 Oct 2024 20:49:43 +0200

author
Mike Becker <universe@uap-core.de>
date
Sun, 06 Oct 2024 20:49:43 +0200
changeset 75
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parent 70
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permissions
-rw-r--r--

revert introduction of high level ucx trees and stick to the low level API

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 * Copyright 2023 Mike Becker. All rights reserved.
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4 *
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5 * Redistribution and use in source and binary forms, with or without
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6 * modification, are permitted provided that the following conditions are met:
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7 *
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8 * 1. Redistributions of source code must retain the above copyright
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9 * notice, this list of conditions and the following disclaimer.
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10 *
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11 * 2. Redistributions in binary form must reproduce the above copyright
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12 * notice, this list of conditions and the following disclaimer in the
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13 * documentation and/or other materials provided with the distribution.
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14 *
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15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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25 * POSSIBILITY OF SUCH DAMAGE.
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26 */
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27
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28 #include "ascension/core.h"
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29 #include <ascension/ui.h>
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30
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31 #include <cx/printf.h>
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32
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33 static void update_fps_counter(AscSceneNode *node) {
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34 static uint64_t last_fps = 0;
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35 static uint64_t debounce = ASC_NANOS_SECOND - 1;
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36 debounce += asc_context.frame_nanos;
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37 // only update text every seconds
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38 if (debounce >= ASC_NANOS_SECOND) {
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39 debounce = 0;
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40 uint64_t fps = ASC_NANOS_SECOND;
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41 fps /= asc_context.frame_nanos;
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42 if (fps != last_fps) {
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43 last_fps = fps;
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44 asc_text_printf(node, "%"PRIu64" FPS", fps);
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45 }
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46 }
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47 // tie to bottom right of the screen
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48 if (asc_test_flag(node->flags, ASC_SCENE_NODE_GRAPHICS_UPDATED)
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49 || asc_active_window->resized) {
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50 asc_vec2i bottom_right = asc_active_window->dimensions;
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51 asc_vec2i scale = asc_get_scale2d(node);
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52 asc_set_position2d(
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53 node,
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54 bottom_right.x - scale.width - 10,
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55 bottom_right.y - scale.height - 10
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56 );
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57 }
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58 }
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59
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60 static void create_fps_counter(void) {
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61 asc_font(ASC_FONT_REGULAR, 12);
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62 asc_ink_rgba(128, 128, 128, 196);
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63 AscSceneNode *node = asc_text();
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64 asc_scene_add_behavior(node, update_fps_counter);
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65 asc_add_ui_node(node);
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66 }
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67
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68 static void create_score_counter(void) {
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69 asc_font(ASC_FONT_BOLD, 16);
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70 asc_ink_rgb(0, 255, 0);
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71 AscSceneNode* node = asc_text(
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72 .x = 10, .y = 10,
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73 .text = "Score: 0"
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74 );
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75 asc_add_ui_node(node);
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76 }
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77
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78 int main(int argc, char** argv) {
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79 asc_context_initialize();
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80 if (asc_has_error()) {
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81 SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR,
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82 "Fatal Error",asc_get_error(),NULL);
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83 return 1;
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84 }
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85
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86 // create window
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87 AscWindowSettings settings;
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88 asc_window_settings_init_defaults(&settings);
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89 settings.title = "Snake";
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90 asc_window_initialize(0, &settings);
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91
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92 // create UI elements
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93 create_fps_counter();
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94 create_score_counter();
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95
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96 // Main Loop
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97 do {
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98 // quit application on any error
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99 if (asc_has_error()) {
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100 SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR,
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101 "Fatal Error", asc_get_error(),
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102 asc_active_window->window);
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103 asc_clear_error();
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104 asc_context_quit();
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105 }
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106
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107 // quit application on ESC key press
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108 if (asc_key_pressed(ESCAPE)) {
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109 asc_context_quit();
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110 }
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111 } while (asc_loop_next());
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112
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113 asc_context_destroy();
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114 return 0;
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115 }
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116

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