/**
* input_sdl_check_key_pressed(): Checks if the specified key is pressed.
* @param key Key to check.
* @return TRUE if the key is pressed; FALSE if the key is not pressed.
*/
BOOL input_sdl_check_key_pressed(uint16_t key)
{
// If the key value is <INPUT_SDL_MAX_KEYS, it's a keyboard key.
if (key < INPUT_SDL_MAX_KEYS)
return input_sdl_keys[key];
// If this isn't a joystick input, don't check anything else.
if (!INPUT_IS_JOYSTICK(key))
return FALSE;
// Joystick "key" check.
// Determine which joystick we're looking for.
int joyNum = INPUT_JOYSTICK_GET_NUMBER(key);
// Check that this joystick exists.
if (!input_sdl_joy_exists(joyNum))
return FALSE;
// Joystick exists. Check the state.
switch (INPUT_JOYSTICK_GET_TYPE(key))
{
case INPUT_JOYSTICK_TYPE_AXIS:
// Joystick axis.
if (INPUT_SDL_JOYSTICK_CHECK_AXIS(input_sdl_joystate, joyNum, key))
return TRUE;
break;
case INPUT_JOYSTICK_TYPE_BUTTON:
// Joystick button.
if (INPUT_SDL_JOYSTICK_CHECK_BUTTON(input_sdl_joystate, joyNum, key))
return TRUE;
break;
case INPUT_JOYSTICK_TYPE_POVHAT:
{
// Joystick POV hat.
static const uint8_t povKeyToBit[4] = {SDL_HAT_UP, SDL_HAT_RIGHT, SDL_HAT_DOWN, SDL_HAT_LEFT};
uint8_t povBit = povKeyToBit[INPUT_JOYSTICK_GET_POVHAT_DIRECTION(key)];
if (INPUT_SDL_JOYSTICK_CHECK_POVHAT_DIRECTION(input_sdl_joystate, joyNum, key, povBit))
return TRUE;
break;
}
}
// Key is not pressed.
return FALSE;
}
/**
* input_get_key_name(): Get a key name.
* @param key Key.
* @param buf Buffer to store the key name in. ("Unknown Key" is stored on error.)
* @param size Size of the buffer.
* @return 0 on success; non-zero on error.
*/
int input_get_key_name(uint16_t key, char* buf, int size)
{
if (size == 0)
return -1;
if (key == 0)
{
// 0 == not configured.
strlcpy(buf, "Not Configured", size);
return 0;
}
if (!INPUT_IS_JOYSTICK(key))
{
// Not a joystick input.
// Defer the key name lookup to the current input handler.
if (input_cur_backend)
{
int rval = input_cur_backend->get_key_name(key, buf, size);
if (!rval)
return 0;
else
{
// Unknown key.
strlcpy(buf, "Unknown Key", size);
return rval;
}
}
// No backend available. Return an error.
strlcpy(buf, "Unknown Key", size);
return -1;
}
// Joystick input.
static const char pov_directions[4][8] = {"Up", "Right", "Down", "Left"};
static const char axis_names[6][4] = {"X", "Y", "Z", "Rx", "Ry", "Rz"};
// Joystick number.
const int joy_num = INPUT_JOYSTICK_GET_NUMBER(key);
switch (INPUT_JOYSTICK_GET_TYPE(key))
{
case INPUT_JOYSTICK_TYPE_AXIS:
{
int axis = INPUT_JOYSTICK_GET_AXIS(key);
char dir = (INPUT_JOYSTICK_GET_AXIS_DIRECTION(key) == INPUT_JOYSTICK_AXIS_NEGATIVE ? '-' : '+');
if (axis < 6)
szprintf(buf, size, "Joy %d, Axis %s%c", joy_num, axis_names[axis], dir);
else
szprintf(buf, size, "Joy %d, Axis %d%c", joy_num, axis, dir);
break;
}
case INPUT_JOYSTICK_TYPE_BUTTON:
szprintf(buf, size, "Joy %d, Button %d", joy_num,
INPUT_JOYSTICK_GET_BUTTON(key));
break;
case INPUT_JOYSTICK_TYPE_POVHAT:
szprintf(buf, size, "Joy %d, POV %d %s", joy_num,
INPUT_JOYSTICK_GET_POVHAT_NUMBER(key),
pov_directions[INPUT_JOYSTICK_GET_POVHAT_DIRECTION(key)]);
break;
default:
strlcpy(buf, "Unknown Joy Key", size);
return -1;
}
return 0;
}