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/hud.h"
  13 #include "client/input.h"
  14 #include "client/font.h"
  15 #include "client/window.h"
  16 #include "signal_handlers.h"
  17
  18 static void crosshair_init()
  19 {
  20         hud_add((HUDElementDefinition) {
  21                 .type = HUD_IMAGE,
  22                 .pos = {0.0f, 0.0f, 0.0f},
  23                 .offset = {0, 0},
  24                 .type_def = {
  25                         .image = {
  26                                 .texture = texture_get(RESSOURCEPATH "textures/crosshair.png"),
  27                                 .scale = {1.0f, 1.0f},
  28                                 .scale_type = HUD_SCALE_TEXTURE,
  29                         },
  30                 },
  31         });
  32 }
  33
  34 static void game_loop(Client *client)
  35 {
  36         f64 fps_update_timer = 1.0f;
  37         int frames = 0;
  38
  39         struct timespec ts, ts_old;
  40         clock_gettime(CLOCK_REALTIME, &ts_old);
  41
  42         while (! glfwWindowShouldClose(window.handle) && client->state != CS_DISCONNECTED && ! interrupted) {
  43                 clock_gettime(CLOCK_REALTIME, &ts);
  44                 f64 dtime = (f64) (ts.tv_sec - ts_old.tv_sec) + (f64) (ts.tv_nsec - ts_old.tv_nsec) / 1.0e9;
  45                 ts_old = ts;
  46
  47                 if ((fps_update_timer -= dtime) <= 0.0) {
  48                         debug_menu_update_fps(frames);
  49                         fps_update_timer += 1.0;
  50                         frames = 0;
  51                 }
  52
  53                 frames++;
  54
  55                 glEnable(GL_DEPTH_TEST);
  56                 glEnable(GL_ALPHA_TEST);
  57                 glEnable(GL_BLEND);
  58                 glEnable(GL_MULTISAMPLE);
  59                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  60                 glAlphaFunc(GL_GREATER, 0.0f);
  61                 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  62                 glClearColor(0.52941176470588f, 0.8078431372549f, 0.92156862745098f, 1.0f);
  63
  64                 input_tick();
  65                 client_player_tick(dtime);
  66
  67                 scene_render();
  68                 hud_render();
  69
  70                 glfwSwapBuffers(window.handle);
  71                 glfwPollEvents();
  72         }
  73 }
  74
  75 bool game(Client *client)
  76 {
  77         int width, height;
  78         width = 1250;
  79         height = 750;
  80
  81         if (! window_init(width, height))
  82                 return false;
  83
  84         if (! font_init())
  85                 return false;
  86
  87         if (! scene_init())
  88                 return false;
  89
  90         scene_on_resize(width, height);
  91
  92         client_node_init();
  93         client_map_start();
  94
  95         camera_set_position((v3f32) {0.0f, 0.0f, 0.0f});
  96         camera_set_angle(0.0f, 0.0f);
  97
  98         if (! hud_init())
  99                 return false;
 100
 101         hud_on_resize(width, height);
 102
 103         debug_menu_init();
 104         debug_menu_toggle();
 105         debug_menu_update_fps(0);
 106         debug_menu_update_version();
 107         debug_menu_update_flight();
 108         debug_menu_update_collision();
 109         debug_menu_update_fullscreen();
 110         debug_menu_update_opengl();
 111         debug_menu_update_gpu();
 112         debug_menu_update_glsl();
 113
 114         crosshair_init();
 115
 116         input_init();
 117
 118         client_player_add_to_scene();
 119
 120         game_loop(client);
 121
 122         client_map_stop();
 123
 124         font_deinit();
 125         hud_deinit();
 126         scene_deinit();
 127
 128         return true;
 129 }