src/input.c

   1 #include <math.h>
   2 #include "camera.h"
   3 #include "client.h"
   4 #include "input.h"
   5
   6 static struct
   7 {
   8         GLFWwindow *window;
   9         Client *client;
  10 } input;
  11
  12 static void cursor_pos_callback(__attribute__((unused)) GLFWwindow* window, double current_x, double current_y)
  13 {
  14         static double last_x, last_y = 0.0;
  15
  16         double delta_x = current_x - last_x;
  17         double delta_y = current_y - last_y;
  18         last_x = current_x;
  19         last_y = current_y;
  20
  21         input.client->player.yaw += (f32) delta_x * M_PI / 180.0f / 8.0f;
  22         input.client->player.pitch -= (f32) delta_y * M_PI / 180.0f / 8.0f;
  23
  24         input.client->player.pitch = fmax(fmin(input.client->player.pitch, 89.0f), -89.0f);
  25
  26         set_camera_angle(input.client->player.yaw, input.client->player.pitch);
  27 }
  28
  29 static bool move(int forward, int backward, vec3 dir)
  30 {
  31         f32 sign;
  32         f32 speed = 10.0f;
  33
  34         if (glfwGetKey(input.window, forward) == GLFW_PRESS)
  35                 sign = +1.0f;
  36         else if (glfwGetKey(input.window, backward) == GLFW_PRESS)
  37                 sign = -1.0f;
  38         else
  39                 return false;
  40
  41         input.client->player.velocity.x += dir[0] * speed * sign;
  42         // input.client->player.velocity.y += dir[1] * speed * sign;
  43         input.client->player.velocity.z += dir[2] * speed * sign;
  44
  45         return true;
  46 }
  47
  48 void process_input()
  49 {
  50         input.client->player.velocity.x = 0.0f;
  51         // input.client->player.velocity.y = 0.0f;
  52         input.client->player.velocity.z = 0.0f;
  53
  54         move(GLFW_KEY_W, GLFW_KEY_S, movement_dirs.front);
  55         move(GLFW_KEY_SPACE, GLFW_KEY_LEFT_SHIFT, movement_dirs.up);
  56         move(GLFW_KEY_D, GLFW_KEY_A, movement_dirs.right);
  57 }
  58
  59 void init_input(Client *client, GLFWwindow *window)
  60 {
  61         input.client = client;
  62         input.window = window;
  63
  64         glfwSetCursorPosCallback(input.window, &cursor_pos_callback);
  65 }
  66
  67