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Add gamepad support to PLATFORM_DESKTOP_SDL (#3776) 

Co-authored-by: Arthur <hi@thenightwat.ch>
pull/3780/head
A 10 months ago
committed by GitHub
parent
868d515fbc
commit
a96b224b38
No known key found for this signature in database GPG Key ID: B5690EEEBB952194
1 changed files with 150 additions and 16 deletions
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  1. +150
    -16
      src/platforms/rcore_desktop_sdl.c

+ 150
- 16
src/platforms/rcore_desktop_sdl.c View File

@ -64,7 +64,7 @@ typedef struct {
SDL_Window *window;
SDL_GLContext glContext;
SDL_Joystick *gamepad;
SDL_Joystick *gamepad[MAX_GAMEPADS];
SDL_Cursor *cursor;
bool cursorRelative;
} PlatformData;
@ -978,8 +978,18 @@ void PollInputEvents(void)
else CORE.Input.Mouse.previousPosition = CORE.Input.Mouse.currentPosition;
// Reset last gamepad button/axis registered state
CORE.Input.Gamepad.lastButtonPressed = GAMEPAD_BUTTON_UNKNOWN;
for (int i = 0; i < MAX_GAMEPADS; i++) CORE.Input.Gamepad.axisCount[i] = 0;
for (int i = 0; (i < SDL_NumJoysticks()) && (i < MAX_GAMEPADS); i++)
{
// Check if gamepad is available
if (CORE.Input.Gamepad.ready[i])
{
// Register previous gamepad button states
for (int k = 0; k < MAX_GAMEPAD_BUTTONS; k++)
{
CORE.Input.Gamepad.previousButtonState[i][k] = CORE.Input.Gamepad.currentButtonState[i][k];
}
}
}
// Register previous touch states
for (int i = 0; i < MAX_TOUCH_POINTS; i++) CORE.Input.Touch.previousTouchState[i] = CORE.Input.Touch.currentTouchState[i];
@ -1215,20 +1225,134 @@ void PollInputEvents(void)
} break;
// Check gamepad events
case SDL_JOYAXISMOTION:
case SDL_JOYDEVICEADDED:
{
o">// Motion on gamepad 0
if (n">event.jaxis.which == 0)
{
// X axis motion
if (event.jaxis.axis == 0)
kt">int jid = event.jdevice.which;
if (o">!CORE.Input.Gamepad.ready[jid] && (jid < MAX_GAMEPADS)) {
platform.gamepad[jid] = SDL_JoystickOpen(jid);
if (platform.gamepad[jid])
{
//...
CORE.Input.Gamepad.ready[jid] = true;
CORE.Input.Gamepad.axisCount[jid] = SDL_JoystickNumAxes(platform.gamepad[jid]);
CORE.Input.Gamepad.axisState[jid][GAMEPAD_AXIS_LEFT_TRIGGER] = -1.0f;
CORE.Input.Gamepad.axisState[jid][GAMEPAD_AXIS_RIGHT_TRIGGER] = -1.0f;
strncpy(CORE.Input.Gamepad.name[jid], SDL_JoystickName(platform.gamepad[jid]), 63);
CORE.Input.Gamepad.name[jid][63] = '\0';
}
// Y axis motion
else if (event.jaxis.axis == 1)
else
{
//...
TRACELOG(LOG_WARNING, "PLATFORM: Unable to open game controller [ERROR: %s]", SDL_GetError());
}
}
} break;
case SDL_JOYDEVICEREMOVED:
{
int jid = event.jdevice.which;
if (jid == SDL_JoystickInstanceID(platform.gamepad[jid])) {
SDL_JoystickClose(platform.gamepad[jid]);
platform.gamepad[jid] = SDL_JoystickOpen(0);
CORE.Input.Gamepad.ready[jid] = false;
memset(CORE.Input.Gamepad.name[jid], 0, 64);
}
} break;
case SDL_JOYBUTTONDOWN:
{
int button = -1;
switch (event.jbutton.button)
{
case SDL_CONTROLLER_BUTTON_Y: button = GAMEPAD_BUTTON_RIGHT_FACE_UP; break;
case SDL_CONTROLLER_BUTTON_B: button = GAMEPAD_BUTTON_RIGHT_FACE_RIGHT; break;
case SDL_CONTROLLER_BUTTON_A: button = GAMEPAD_BUTTON_RIGHT_FACE_DOWN; break;
case SDL_CONTROLLER_BUTTON_X: button = GAMEPAD_BUTTON_RIGHT_FACE_LEFT; break;
case SDL_CONTROLLER_BUTTON_LEFTSHOULDER: button = GAMEPAD_BUTTON_LEFT_TRIGGER_1; break;
case SDL_CONTROLLER_BUTTON_RIGHTSHOULDER: button = GAMEPAD_BUTTON_RIGHT_TRIGGER_1; break;
case SDL_CONTROLLER_BUTTON_BACK: button = GAMEPAD_BUTTON_MIDDLE_LEFT; break;
case SDL_CONTROLLER_BUTTON_GUIDE: button = GAMEPAD_BUTTON_MIDDLE; break;
case SDL_CONTROLLER_BUTTON_START: button = GAMEPAD_BUTTON_MIDDLE_RIGHT; break;
case SDL_CONTROLLER_BUTTON_DPAD_UP: button = GAMEPAD_BUTTON_LEFT_FACE_UP; break;
case SDL_CONTROLLER_BUTTON_DPAD_RIGHT: button = GAMEPAD_BUTTON_LEFT_FACE_RIGHT; break;
case SDL_CONTROLLER_BUTTON_DPAD_DOWN: button = GAMEPAD_BUTTON_LEFT_FACE_DOWN; break;
case SDL_CONTROLLER_BUTTON_DPAD_LEFT: button = GAMEPAD_BUTTON_LEFT_FACE_LEFT; break;
case SDL_CONTROLLER_BUTTON_LEFTSTICK: button = GAMEPAD_BUTTON_LEFT_THUMB; break;
case SDL_CONTROLLER_BUTTON_RIGHTSTICK: button = GAMEPAD_BUTTON_RIGHT_THUMB; break;
default: break;
}
if (button >= 0)
{
CORE.Input.Gamepad.currentButtonState[event.jbutton.which][button] = 1;
CORE.Input.Gamepad.lastButtonPressed = button;
}
} break;
case SDL_JOYBUTTONUP:
{
int button = -1;
switch (event.jbutton.button)
{
case SDL_CONTROLLER_BUTTON_Y: button = GAMEPAD_BUTTON_RIGHT_FACE_UP; break;
case SDL_CONTROLLER_BUTTON_B: button = GAMEPAD_BUTTON_RIGHT_FACE_RIGHT; break;
case SDL_CONTROLLER_BUTTON_A: button = GAMEPAD_BUTTON_RIGHT_FACE_DOWN; break;
case SDL_CONTROLLER_BUTTON_X: button = GAMEPAD_BUTTON_RIGHT_FACE_LEFT; break;
case SDL_CONTROLLER_BUTTON_LEFTSHOULDER: button = GAMEPAD_BUTTON_LEFT_TRIGGER_1; break;
case SDL_CONTROLLER_BUTTON_RIGHTSHOULDER: button = GAMEPAD_BUTTON_RIGHT_TRIGGER_1; break;
case SDL_CONTROLLER_BUTTON_BACK: button = GAMEPAD_BUTTON_MIDDLE_LEFT; break;
case SDL_CONTROLLER_BUTTON_GUIDE: button = GAMEPAD_BUTTON_MIDDLE; break;
case SDL_CONTROLLER_BUTTON_START: button = GAMEPAD_BUTTON_MIDDLE_RIGHT; break;
case SDL_CONTROLLER_BUTTON_DPAD_UP: button = GAMEPAD_BUTTON_LEFT_FACE_UP; break;
case SDL_CONTROLLER_BUTTON_DPAD_RIGHT: button = GAMEPAD_BUTTON_LEFT_FACE_RIGHT; break;
case SDL_CONTROLLER_BUTTON_DPAD_DOWN: button = GAMEPAD_BUTTON_LEFT_FACE_DOWN; break;
case SDL_CONTROLLER_BUTTON_DPAD_LEFT: button = GAMEPAD_BUTTON_LEFT_FACE_LEFT; break;
case SDL_CONTROLLER_BUTTON_LEFTSTICK: button = GAMEPAD_BUTTON_LEFT_THUMB; break;
case SDL_CONTROLLER_BUTTON_RIGHTSTICK: button = GAMEPAD_BUTTON_RIGHT_THUMB; break;
default: break;
}
if (button >= 0)
{
CORE.Input.Gamepad.currentButtonState[event.jbutton.which][button] = 0;
if (CORE.Input.Gamepad.lastButtonPressed == button) CORE.Input.Gamepad.lastButtonPressed = 0;
}
} break;
case SDL_JOYAXISMOTION:
{
int axis = -1;
switch (event.jaxis.axis)
{
case SDL_CONTROLLER_AXIS_LEFTX: axis = GAMEPAD_AXIS_LEFT_X; break;
case SDL_CONTROLLER_AXIS_LEFTY: axis = GAMEPAD_AXIS_LEFT_Y; break;
case SDL_CONTROLLER_AXIS_RIGHTX: axis = GAMEPAD_AXIS_RIGHT_X; break;
case SDL_CONTROLLER_AXIS_RIGHTY: axis = GAMEPAD_AXIS_RIGHT_Y; break;
case SDL_CONTROLLER_AXIS_TRIGGERLEFT: axis = GAMEPAD_AXIS_LEFT_TRIGGER; break;
case SDL_CONTROLLER_AXIS_TRIGGERRIGHT: axis = GAMEPAD_AXIS_RIGHT_TRIGGER; break;
default: break;
}
if (axis >= 0)
{
// SDL axis value range is -32768 to 32767, we normalize it to RayLib's -1.0 to 1.0f range
float value = event.jaxis.value / (float) 32767;
CORE.Input.Gamepad.axisState[event.jaxis.which][axis] = value;
// Register button state for triggers in addition to their axes
if ((axis == GAMEPAD_AXIS_LEFT_TRIGGER) || (axis == GAMEPAD_AXIS_RIGHT_TRIGGER))
{
int button = (axis == GAMEPAD_AXIS_LEFT_TRIGGER) ? GAMEPAD_BUTTON_LEFT_TRIGGER_2 : GAMEPAD_BUTTON_RIGHT_TRIGGER_2;
int pressed = (value > 0.1f);
CORE.Input.Gamepad.currentButtonState[event.jaxis.which][button] = pressed;
if (pressed) CORE.Input.Gamepad.lastButtonPressed = button;
else if (CORE.Input.Gamepad.lastButtonPressed == button) CORE.Input.Gamepad.lastButtonPressed = 0;
}
}
} break;
@ -1405,10 +1529,20 @@ int InitPlatform(void)
// Initialize input events system
//----------------------------------------------------------------------------
if (SDL_NumJoysticks() >= 1)
// Initialize gamepads
for (int i = 0; (i < SDL_NumJoysticks()) && (i < MAX_GAMEPADS); i++)
{
platform.gamepad = SDL_JoystickOpen(0);
//if (platform.gamepadgamepad == NULL) TRACELOG(LOG_WARNING, "PLATFORM: Unable to open game controller [ERROR: %s]", SDL_GetError());
platform.gamepad[i] = SDL_JoystickOpen(i);
if (platform.gamepad[i])
{
CORE.Input.Gamepad.ready[i] = true;
CORE.Input.Gamepad.axisCount[i] = SDL_JoystickNumAxes(platform.gamepad[i]);
CORE.Input.Gamepad.axisState[i][GAMEPAD_AXIS_LEFT_TRIGGER] = -1.0f;
CORE.Input.Gamepad.axisState[i][GAMEPAD_AXIS_RIGHT_TRIGGER] = -1.0f;
strncpy(CORE.Input.Gamepad.name[i], SDL_JoystickName(platform.gamepad[i]), 63);
CORE.Input.Gamepad.name[i][63] = '\0';
}
else TRACELOG(LOG_WARNING, "PLATFORM: Unable to open game controller [ERROR: %s]", SDL_GetError());
}
// Disable mouse events being interpreted as touch events

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