input.h

#ifndef INPUT_H
#define INPUT_H

#include <GLFW/glfw3.h>
#include <stdbool.h>
#include "common.h"

typedef struct {
    double x;
    double y;
} Vec2f;

/// CALLBACKS
typedef void (*TextCallback)(unsigned int codepoint);
typedef void (*KeyInputCallback)(int key, int action, int mods);
typedef void (*MouseButtonCallback)(int button, int action, int mods);
typedef void (*CursorPosCallback)(double xpos, double ypos);
typedef void (*ScrollCallback)(double xOffset, double deltaY);
typedef void (*WindowResizeCallback)(int width, int height);
typedef void (*WindowFocusCallback)(int focused);
typedef void (*WindowPosCallback)(int xpos, int ypos);
typedef void (*DropCallback)(int count, const char** paths);


extern TextCallback currentTextCallback;
extern KeyInputCallback currentKeyCallback;
extern MouseButtonCallback currentMouseButtonCallback;
extern CursorPosCallback currentCursorPosCallback;
extern ScrollCallback currentScrollCallback;
extern WindowResizeCallback currentResizeCallback;
extern WindowFocusCallback currentFocusCallback;
extern WindowPosCallback currentWindowPosCallback;


void registerTextCallback(TextCallback callback);
void registerKeyCallback(KeyInputCallback callback);
void registerMouseButtonCallback(MouseButtonCallback callback);
void registerCursorPosCallback(CursorPosCallback callback);
void registerScrollCallback(ScrollCallback callback);
void registerWindowResizeCallback(WindowResizeCallback callback);
void registerWindowFocusCallback(WindowFocusCallback callback);
void registerWindowPosCallback(WindowPosCallback callback);
void registerDropCallback(DropCallback callback);


void internal_char_callback(GLFWwindow* window, unsigned int codepoint);
void internal_key_callback(GLFWwindow* window, int key, int scancode, int action, int mods);
void internal_mouse_button_callback(GLFWwindow* window, int button, int action, int mods);
void internal_cursor_position_callback(GLFWwindow* window, double xpos, double ypos);
void internal_scroll_callback(GLFWwindow* window, double xOffset, double yOffset);
void internal_window_resize_callback(GLFWwindow* window, int width, int height);
void internal_window_focus_callback(GLFWwindow* window, int focused);
void internal_window_pos_callback(GLFWwindow* window, int xpos, int ypos);
void internal_drop_callback(GLFWwindow* window, int count, const char** paths);


void init_input();
void update_input();
int isKeyDown(int key);
int isKeyPressed(int key);
int isKeyReleased(int key);

void getCursorPosition(double* x, double* y);
bool getMouseButton(int button);


Vec2f getMouseDelta();
int isMouseButtonPressed(int button);
int isMouseButtonReleased(int button);
int isMouseButtonDown(int button);

int isGamepadButtonPressed(int button);
int isGamepadButtonDown(int button);

/// Printable keys
#define KEY_SPACE              32
#define KEY_APOSTROPHE         39  /* ' */
#define KEY_COMMA              44  /* , */
#define KEY_MINUS              45  /* - */
#define KEY_PERIOD             46  /* . */
#define KEY_SLASH              47  /* / */
#define KEY_0                  48
#define KEY_1                  49
#define KEY_2                  50
#define KEY_3                  51
#define KEY_4                  52
#define KEY_5                  53
#define KEY_6                  54
#define KEY_7                  55
#define KEY_8                  56
#define KEY_9                  57
#define KEY_SEMICOLON          59  /* ; */
#define KEY_EQUAL              61  /* = */
#define KEY_A                  65
#define KEY_B                  66
#define KEY_C                  67
#define KEY_D                  68
#define KEY_E                  69
#define KEY_F                  70
#define KEY_G                  71
#define KEY_H                  72
#define KEY_I                  73
#define KEY_J                  74
#define KEY_K                  75
#define KEY_L                  76
#define KEY_M                  77
#define KEY_N                  78
#define KEY_O                  79
#define KEY_P                  80
#define KEY_Q                  81
#define KEY_R                  82
#define KEY_S                  83
#define KEY_T                  84
#define KEY_U                  85
#define KEY_V                  86
#define KEY_W                  87
#define KEY_X                  88
#define KEY_Y                  89
#define KEY_Z                  90
#define KEY_LEFT_BRACKET       91  /* [ */
#define KEY_BACKSLASH          92  /* \ */
#define KEY_RIGHT_BRACKET      93  /* ] */
#define KEY_GRAVE_ACCENT       96  /* ` */
#define KEY_WORLD_1            161 /* non-US #1 */
#define KEY_WORLD_2            162 /* non-US #2 */

/// Function keys
#define KEY_ESCAPE             256
#define KEY_ENTER              257
#define KEY_TAB                258
#define KEY_BACKSPACE          259
#define KEY_INSERT             260
#define KEY_DELETE             261
#define KEY_RIGHT              262
#define KEY_LEFT               263
#define KEY_DOWN               264
#define KEY_UP                 265
#define KEY_PAGE_UP            266
#define KEY_PAGE_DOWN          267
#define KEY_HOME               268
#define KEY_END                269
#define KEY_CAPS_LOCK          280
#define KEY_SCROLL_LOCK        281
#define KEY_NUM_LOCK           282
#define KEY_PRINT_SCREEN       283
#define KEY_PAUSE              284
#define KEY_F1                 290
#define KEY_F2                 291
#define KEY_F3                 292
#define KEY_F4                 293
#define KEY_F5                 294
#define KEY_F6                 295
#define KEY_F7                 296
#define KEY_F8                 297
#define KEY_F9                 298
#define KEY_F10                299
#define KEY_F11                300
#define KEY_F12                301
#define KEY_F13                302
#define KEY_F14                303
#define KEY_F15                304
#define KEY_F16                305
#define KEY_F17                306
#define KEY_F18                307
#define KEY_F19                308
#define KEY_F20                309
#define KEY_F21                310
#define KEY_F22                311
#define KEY_F23                312
#define KEY_F24                313
#define KEY_F25                314
#define KEY_KP_0               320
#define KEY_KP_1               321
#define KEY_KP_2               322
#define KEY_KP_3               323
#define KEY_KP_4               324
#define KEY_KP_5               325
#define KEY_KP_6               326
#define KEY_KP_7               327
#define KEY_KP_8               328
#define KEY_KP_9               329
#define KEY_KP_DECIMAL         330
#define KEY_KP_DIVIDE          331
#define KEY_KP_MULTIPLY        332
#define KEY_KP_SUBTRACT        333
#define KEY_KP_ADD             334
#define KEY_KP_ENTER           335
#define KEY_KP_EQUAL           336
#define KEY_LEFT_SHIFT         340
#define KEY_LEFT_CONTROL       341
#define KEY_LEFT_ALT           342
#define KEY_LEFT_SUPER         343
#define KEY_RIGHT_SHIFT        344
#define KEY_RIGHT_CONTROL      345
#define KEY_RIGHT_ALT          346
#define KEY_RIGHT_SUPER        347
#define KEY_MENU               348

#define KEY_LAST               KEY_MENU
#define KEY_UNKNOWN            GLFW_KEY_UNKNOWN


/// MODIFIERS
#define MOD_SHIFT GLFW_MOD_SHIFT
#define MOD_CONTROL GLFW_MOD_CONTROL
#define MOD_ALT GLFW_MOD_ALT
#define MOD_SUPER GLFW_MOD_SUPER
#define MOD_CAPS_LOCK GLFW_MOD_CAPS_LOCK
#define MOD_NUM_LOCK GLFW_MOD_NUM_LOCK


/// KEY STATES
#define RELEASE GLFW_RELEASE
#define PRESS GLFW_PRESS
#define REPEAT GLFW_REPEAT


/// CURSOR
#define CURSOR GLFW_CURSOR
#define CURSOR_NORMAL GLFW_CURSOR_NORMAL
#define CURSOR_DISABLED GLFW_CURSOR_DISABLED


/// GAMEPAD
#define MOUSE_BUTTON_1         0
#define MOUSE_BUTTON_2         1
#define MOUSE_BUTTON_3         2
#define MOUSE_BUTTON_4         3
#define MOUSE_BUTTON_5         4
#define MOUSE_BUTTON_6         5
#define MOUSE_BUTTON_7         6
#define MOUSE_BUTTON_8         7
#define MOUSE_BUTTON_LAST      MOUSE_BUTTON_8
#define MOUSE_BUTTON_LEFT      MOUSE_BUTTON_1
#define MOUSE_BUTTON_RIGHT     MOUSE_BUTTON_2
#define MOUSE_BUTTON_MIDDLE    MOUSE_BUTTON_3

#define GAMEPAD_BUTTON_A               0
#define GAMEPAD_BUTTON_B               1
#define GAMEPAD_BUTTON_X               2
#define GAMEPAD_BUTTON_Y               3
#define GAMEPAD_BUTTON_LEFT_BUMPER     4
#define GAMEPAD_BUTTON_RIGHT_BUMPER    5
#define GAMEPAD_BUTTON_BACK            6
#define GAMEPAD_BUTTON_START           7
#define GAMEPAD_BUTTON_GUIDE           8
#define GAMEPAD_BUTTON_LEFT_THUMB      9
#define GAMEPAD_BUTTON_RIGHT_THUMB     10
#define GAMEPAD_BUTTON_DPAD_UP         11
#define GAMEPAD_BUTTON_DPAD_RIGHT      12
#define GAMEPAD_BUTTON_DPAD_DOWN       13
#define GAMEPAD_BUTTON_DPAD_LEFT       14
#define GAMEPAD_BUTTON_LAST            GAMEPAD_BUTTON_DPAD_LEFT

#define GAMEPAD_BUTTON_CROSS       GAMEPAD_BUTTON_A
#define GAMEPAD_BUTTON_CIRCLE      GAMEPAD_BUTTON_B
#define GAMEPAD_BUTTON_SQUARE      GAMEPAD_BUTTON_X
#define GAMEPAD_BUTTON_TRIANGLE    GAMEPAD_BUTTON_Y


#define GAMEPAD_AXIS_LEFT_X        0
#define GAMEPAD_AXIS_LEFT_Y        1
#define GAMEPAD_AXIS_RIGHT_X       2
#define GAMEPAD_AXIS_RIGHT_Y       3
#define GAMEPAD_AXIS_LEFT_TRIGGER  4
#define GAMEPAD_AXIS_RIGHT_TRIGGER 5
#define GAMEPAD_AXIS_LAST          GAMEPAD_AXIS_RIGHT_TRIGGER

#endif