src/client/game.c

   1 #include <stdio.h>
   2 #include <unistd.h>
   3 #include <GL/glew.h>
   4 #include <GL/gl.h>
   5 #include <GLFW/glfw3.h>
   6 #include "client/camera.h"
   7 #include "client/client.h"
   8 #include "client/client_map.h"
   9 #include "client/client_node.h"
  10 #include "client/client_player.h"
  11 #include "client/debug_menu.h"
  12 #include "client/font.h"
  13 #include "client/gui.h"
  14 #include "client/input.h"
  15 #include "client/sky.h"
  16 #include "client/window.h"
  17 #include "day.h"
  18 #include "signal_handlers.h"
  19
  20 static void crosshair_init()
  21 {
  22         gui_add(&gui_root, (GUIElementDefinition) {
  23                 .pos = {0.5f, 0.5f},
  24                 .z_index = 0.0f,
  25                 .offset = {0, 0},
  26                 .margin = {0, 0},
  27                 .align = {0.5f, 0.5f},
  28                 .scale = {1.0f, 1.0f},
  29                 .scale_type = GST_IMAGE,
  30                 .affect_parent_scale = false,
  31                 .text = NULL,
  32                 .image = texture_get(RESSOURCEPATH "textures/crosshair.png"),
  33                 .text_color = (v4f32) {0.0f, 0.0f, 0.0f, 0.0f},
  34                 .bg_color = (v4f32) {0.0f, 0.0f, 0.0f, 0.0f},
  35         });
  36 }
  37
  38 static void game_loop(Client *client)
  39 {
  40         f64 fps_update_timer = 1.0f;
  41         int frames = 0;
  42
  43         struct timespec ts, ts_old;
  44         clock_gettime(CLOCK_REALTIME, &ts_old);
  45
  46         while (! glfwWindowShouldClose(window.handle) && client->state != CS_DISCONNECTED && ! interrupted) {
  47                 clock_gettime(CLOCK_REALTIME, &ts);
  48                 f64 dtime = (f64) (ts.tv_sec - ts_old.tv_sec) + (f64) (ts.tv_nsec - ts_old.tv_nsec) / 1.0e9;
  49                 ts_old = ts;
  50
  51                 if ((fps_update_timer -= dtime) <= 0.0) {
  52                         debug_menu_update_fps(frames);
  53                         fps_update_timer += 1.0;
  54                         frames = 0;
  55                 }
  56
  57                 frames++;
  58
  59                 debug_menu_update_time();
  60                 debug_menu_update_daylight();
  61                 debug_menu_update_sun_angle();
  62
  63                 glEnable(GL_DEPTH_TEST);
  64                 glEnable(GL_ALPHA_TEST);
  65                 glEnable(GL_BLEND);
  66                 glEnable(GL_MULTISAMPLE);
  67                 glEnable(GL_CULL_FACE);
  68                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  69                 glAlphaFunc(GL_GREATER, 0.0f);
  70                 glCullFace(GL_BACK);
  71                 glFrontFace(GL_CCW);
  72                 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  73
  74                 input_tick();
  75                 client_player_tick(dtime);
  76
  77                 scene_render();
  78
  79                 glDisable(GL_CULL_FACE);
  80                 sky_render();
  81
  82                 glDisable(GL_DEPTH_TEST);
  83                 gui_render();
  84
  85                 glfwSwapBuffers(window.handle);
  86                 glfwPollEvents();
  87         }
  88 }
  89
  90 bool game(Client *client)
  91 {
  92         int width, height;
  93         width = 1250;
  94         height = 750;
  95
  96         if (! window_init(width, height))
  97                 return false;
  98
  99         if (! font_init())
 100                 return false;
 101
 102         if (! scene_init())
 103                 return false;
 104
 105         scene_on_resize(width, height);
 106
 107         if (! sky_init())
 108                 return false;
 109
 110         client_node_init();
 111         client_map_start();
 112
 113         camera_set_position((v3f32) {0.0f, 0.0f, 0.0f});
 114         camera_set_angle(0.0f, 0.0f);
 115
 116         if (! gui_init())
 117                 return false;
 118
 119         gui_on_resize(width, height);
 120
 121         debug_menu_init();
 122         debug_menu_toggle();
 123         debug_menu_update_fps(0);
 124         debug_menu_update_version();
 125         debug_menu_update_seed();
 126         debug_menu_update_flight();
 127         debug_menu_update_collision();
 128         debug_menu_update_timelapse();
 129         debug_menu_update_fullscreen();
 130         debug_menu_update_opengl();
 131         debug_menu_update_gpu();
 132
 133         crosshair_init();
 134
 135         input_init();
 136
 137         client_player_add_to_scene();
 138
 139         game_loop(client);
 140
 141         client_map_stop();
 142
 143         font_deinit();
 144         gui_deinit();
 145         scene_deinit();
 146         sky_deinit();
 147
 148         return true;
 149 }