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Fix SDL keyboard issue (#3435) 

* Fix SDL keyboard issue

We have added a mapping table between raylib keys and SDL scancodes.

* Change `ScancodeToKey` array type
This commit is contained in:
Le Juez Victor 2023-10-17 23:29:28 +02:00 committed by GitHub
parent f353cd1c3a
commit 80432fde62
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1 changed files with 129 additions and 5 deletions
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134
src/rcore_desktop_sdl.c
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@ -71,11 +71,119 @@ extern CoreData CORE; // Global CORE state context
static PlatformData platform = { 0 }; // Platform specific data
//----------------------------------------------------------------------------------
// Local Variables Definition
//----------------------------------------------------------------------------------
#define SCANCODE_MAPPED_NUM 100
static const KeyboardKey ScancodeToKey[SCANCODE_MAPPED_NUM] = {
KEY_NULL, // SDL_SCANCODE_UNKNOWN
0,
0,
0,
KEY_A, // SDL_SCANCODE_A
KEY_B, // SDL_SCANCODE_B
KEY_C, // SDL_SCANCODE_C
KEY_D, // SDL_SCANCODE_D
KEY_E, // SDL_SCANCODE_E
KEY_F, // SDL_SCANCODE_F
KEY_G, // SDL_SCANCODE_G
KEY_H, // SDL_SCANCODE_H
KEY_I, // SDL_SCANCODE_I
KEY_J, // SDL_SCANCODE_J
KEY_K, // SDL_SCANCODE_K
KEY_L, // SDL_SCANCODE_L
KEY_M, // SDL_SCANCODE_M
KEY_N, // SDL_SCANCODE_N
KEY_O, // SDL_SCANCODE_O
KEY_P, // SDL_SCANCODE_P
KEY_Q, // SDL_SCANCODE_Q
KEY_R, // SDL_SCANCODE_R
KEY_S, // SDL_SCANCODE_S
KEY_T, // SDL_SCANCODE_T
KEY_U, // SDL_SCANCODE_U
KEY_V, // SDL_SCANCODE_V
KEY_W, // SDL_SCANCODE_W
KEY_X, // SDL_SCANCODE_X
KEY_Y, // SDL_SCANCODE_Y
KEY_Z, // SDL_SCANCODE_Z
KEY_ONE, // SDL_SCANCODE_1
KEY_TWO, // SDL_SCANCODE_2
KEY_THREE, // SDL_SCANCODE_3
KEY_FOUR, // SDL_SCANCODE_4
KEY_FIVE, // SDL_SCANCODE_5
KEY_SIX, // SDL_SCANCODE_6
KEY_SEVEN, // SDL_SCANCODE_7
KEY_EIGHT, // SDL_SCANCODE_8
KEY_NINE, // SDL_SCANCODE_9
KEY_ZERO, // SDL_SCANCODE_0
KEY_ENTER, // SDL_SCANCODE_RETURN
KEY_ESCAPE, // SDL_SCANCODE_ESCAPE
KEY_BACKSPACE, // SDL_SCANCODE_BACKSPACE
KEY_TAB, // SDL_SCANCODE_TAB
KEY_SPACE, // SDL_SCANCODE_SPACE
KEY_MINUS, // SDL_SCANCODE_MINUS
KEY_EQUAL, // SDL_SCANCODE_EQUALS
KEY_LEFT_BRACKET, // SDL_SCANCODE_LEFTBRACKET
KEY_RIGHT_BRACKET, // SDL_SCANCODE_RIGHTBRACKET
KEY_BACKSLASH, // SDL_SCANCODE_BACKSLASH
0, // SDL_SCANCODE_NONUSHASH
KEY_SEMICOLON, // SDL_SCANCODE_SEMICOLON
KEY_APOSTROPHE, // SDL_SCANCODE_APOSTROPHE
KEY_GRAVE, // SDL_SCANCODE_GRAVE
KEY_COMMA, // SDL_SCANCODE_COMMA
KEY_PERIOD, // SDL_SCANCODE_PERIOD
KEY_SLASH, // SDL_SCANCODE_SLASH
KEY_CAPS_LOCK, // SDL_SCANCODE_CAPSLOCK
KEY_F1, // SDL_SCANCODE_F1
KEY_F2, // SDL_SCANCODE_F2
KEY_F3, // SDL_SCANCODE_F3
KEY_F4, // SDL_SCANCODE_F4
KEY_F5, // SDL_SCANCODE_F5
KEY_F6, // SDL_SCANCODE_F6
KEY_F7, // SDL_SCANCODE_F7
KEY_F8, // SDL_SCANCODE_F8
KEY_F9, // SDL_SCANCODE_F9
KEY_F10, // SDL_SCANCODE_F10
KEY_F11, // SDL_SCANCODE_F11
KEY_F12, // SDL_SCANCODE_F12
KEY_PRINT_SCREEN, // SDL_SCANCODE_PRINTSCREEN
KEY_SCROLL_LOCK, // SDL_SCANCODE_SCROLLLOCK
KEY_PAUSE, // SDL_SCANCODE_PAUSE
KEY_INSERT, // SDL_SCANCODE_INSERT
KEY_HOME, // SDL_SCANCODE_HOME
KEY_PAGE_UP, // SDL_SCANCODE_PAGEUP
KEY_DELETE, // SDL_SCANCODE_DELETE
KEY_END, // SDL_SCANCODE_END
KEY_PAGE_DOWN, // SDL_SCANCODE_PAGEDOWN
KEY_RIGHT, // SDL_SCANCODE_RIGHT
KEY_LEFT, // SDL_SCANCODE_LEFT
KEY_DOWN, // SDL_SCANCODE_DOWN
KEY_UP, // SDL_SCANCODE_UP
KEY_NUM_LOCK, // SDL_SCANCODE_NUMLOCKCLEAR
KEY_KP_DIVIDE, // SDL_SCANCODE_KP_DIVIDE
KEY_KP_MULTIPLY, // SDL_SCANCODE_KP_MULTIPLY
KEY_KP_SUBTRACT, // SDL_SCANCODE_KP_MINUS
KEY_KP_ADD, // SDL_SCANCODE_KP_PLUS
KEY_KP_ENTER, // SDL_SCANCODE_KP_ENTER
KEY_KP_1, // SDL_SCANCODE_KP_1
KEY_KP_2, // SDL_SCANCODE_KP_2
KEY_KP_3, // SDL_SCANCODE_KP_3
KEY_KP_4, // SDL_SCANCODE_KP_4
KEY_KP_5, // SDL_SCANCODE_KP_5
KEY_KP_6, // SDL_SCANCODE_KP_6
KEY_KP_7, // SDL_SCANCODE_KP_7
KEY_KP_8, // SDL_SCANCODE_KP_8
KEY_KP_9, // SDL_SCANCODE_KP_9
KEY_KP_0, // SDL_SCANCODE_KP_0
KEY_KP_DECIMAL // SDL_SCANCODE_KP_PERIOD
};
//----------------------------------------------------------------------------------
// Module Internal Functions Declaration
//----------------------------------------------------------------------------------
static int InitPlatform(void); // Initialize platform (graphics, inputs and more)
static void ClosePlatform(void); // Close platform
static int InitPlatform(void); // Initialize platform (graphics, inputs and more)
static void ClosePlatform(void); // Close platform
static KeyboardKey ConvertScancodeToKey(SDL_Scancode sdlScancode); // Help convert SDL scancodes to raylib key
//----------------------------------------------------------------------------------
// Module Functions Declaration
@ -660,14 +768,21 @@ void PollInputEvents(void)
// Keyboard events
case SDL_KEYDOWN:
{
CORE.Input.Keyboard.currentKeyState[event.key.keysym.sym] = 1;
KeyboardKey key = ConvertScancodeToKey(event.key.keysym.scancode);
if (key != KEY_NULL) CORE.Input.Keyboard.currentKeyState[key] = 1;
if (event.key.keysym.sym == SDLK_ESCAPE)
// TODO: Put exitKey verification outside the switch?
if (CORE.Input.Keyboard.currentKeyState[CORE.Input.Keyboard.exitKey])
{
CORE.Window.shouldClose = true;
}
} break;
case SDL_KEYUP: break;
case SDL_KEYUP:
{
KeyboardKey key = ConvertScancodeToKey(event.key.keysym.scancode);
if (key != KEY_NULL) CORE.Input.Keyboard.currentKeyState[key] = 0;
} break;
// Check mouse events
case SDL_MOUSEBUTTONDOWN:
@ -823,4 +938,13 @@ static void ClosePlatform(void)
SDL_DestroyWindow(platform.window);
SDL_Quit(); // Deinitialize SDL internal global state
}
static KeyboardKey ConvertScancodeToKey(SDL_Scancode sdlScancode)
{
if (sdlScancode >= 0 && sdlScancode < SCANCODE_MAPPED_NUM)
{
return ScancodeToKey[sdlScancode];
}
return KEY_NULL; // No equivalent key in Raylib
}
// EOF