C++ (Cpp) HandleHat Examples

Example #1

File: SDL_sysjoystick.c Project: Sonophoto/Soar-SC

/* Function to update the state of a joystick - called as a device poll.
 * This function shouldn't update the joystick structure directly,
 * but instead should call SDL_PrivateJoystick*() to deliver events
 * and update joystick device state.
 */
static __inline__ void JS_HandleEvents(SDL_Joystick *joystick)
{
	struct js_event events[32];
	int i, len;
	Uint8 other_axis;

#ifndef NO_LOGICAL_JOYSTICKS
	if (SDL_joylist[joystick->index].fname == NULL) {
		SDL_joylist_head(i, joystick->index);
		JS_HandleEvents(SDL_joylist[i].joy);
		return;
	}
#endif

	while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) {
		len /= sizeof(events[0]);
		for ( i=0; i<len; ++i ) {
			switch (events[i].type & ~JS_EVENT_INIT) {
			    case JS_EVENT_AXIS:
				if ( events[i].number < joystick->naxes ) {
#ifndef NO_LOGICAL_JOYSTICKS
					if (!LogicalJoystickAxis(joystick,
				           events[i].number, events[i].value))
#endif
					SDL_PrivateJoystickAxis(joystick,
				           events[i].number, events[i].value);
					break;
				}
				events[i].number -= joystick->naxes;
				other_axis = (events[i].number / 2);
				if ( other_axis < joystick->nhats ) {
					HandleHat(joystick, other_axis,
						events[i].number%2,
						events[i].value);
					break;
				}
				events[i].number -= joystick->nhats*2;
				other_axis = (events[i].number / 2);
				if ( other_axis < joystick->nballs ) {
					HandleBall(joystick, other_axis,
						events[i].number%2,
						events[i].value);
					break;
				}
				break;
			    case JS_EVENT_BUTTON:
#ifndef NO_LOGICAL_JOYSTICKS
				if (!LogicalJoystickButton(joystick,
				           events[i].number, events[i].value))
#endif
				SDL_PrivateJoystickButton(joystick,
				           events[i].number, events[i].value);
				break;
			    default:
				/* ?? */
				break;
			}
		}
	}
}

Example #2

File: STJoystick_linux.cpp Project: sdunham/cs315-Katamari

static __inline__ void EV_HandleEvents(SDL_Joystick *joystick)
{
	struct input_event events[32];
	int i, len;
	int code;

#ifndef NO_LOGICAL_JOYSTICKS
	if (SDL_joylist[joystick->index].fname == NULL) {
		SDL_joylist_head(i, joystick->index);
		return EV_HandleEvents(SDL_joylist[i].joy);
	}
#endif

	while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) {
		len /= sizeof(events[0]);
		for ( i=0; i<len; ++i ) {
			code = events[i].code;
			switch (events[i].type) {
			    case EV_KEY:
				if ( code >= BTN_MISC ) {
					code -= BTN_MISC;
#ifndef NO_LOGICAL_JOYSTICKS
					if (!LogicalJoystickButton(joystick,
				           joystick->hwdata->key_map[code],
					   events[i].value))
#endif
					SDL_PrivateJoystickButton(joystick,
				           joystick->hwdata->key_map[code],
					   events[i].value);
				}
				break;
			    case EV_ABS:
				switch (code) {
				    case ABS_HAT0X:
				    case ABS_HAT0Y:
				    case ABS_HAT1X:
				    case ABS_HAT1Y:
				    case ABS_HAT2X:
				    case ABS_HAT2Y:
				    case ABS_HAT3X:
				    case ABS_HAT3Y:
					code -= ABS_HAT0X;
					HandleHat(joystick, code/2, code%2,
							events[i].value);
					break;
				    default:
					events[i].value = EV_AxisCorrect(joystick, code, events[i].value);
#ifndef NO_LOGICAL_JOYSTICKS
					if (!LogicalJoystickAxis(joystick,
				           joystick->hwdata->abs_map[code],
					   events[i].value))
#endif
					SDL_PrivateJoystickAxis(joystick,
				           joystick->hwdata->abs_map[code],
					   events[i].value);
					break;
				}
				break;
			    case EV_REL:
				switch (code) {
				    case REL_X:
				    case REL_Y:
					code -= REL_X;
					HandleBall(joystick, code/2, code%2,
							events[i].value);
					break;
				    default:
					break;
				}
				break;
			    default:
				break;
			}
		}
	}
}