/*
* Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3.0 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* version 3.0 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3.0 along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#import "OFWiiGameController.h"
#import "OFMutableSet.h"
#import "OFInitializationFailedException.h"
#import "OFNotImplementedException.h"
#import "OFReadFailedException.h"
#define asm __asm__
#include <wiiuse/wpad.h>
#undef asm
static float
scale(float value, float min, float max, float center)
{
if (value < min)
value = min;
if (value > max)
value = max;
if (value >= center)
return (value - center) / (max - center);
else
return (value - center) / (center - min);
}
@implementation OFWiiGameController
+ (void)initialize
{
if (self != [OFWiiGameController class])
return;
if (WPAD_Init() != WPAD_ERR_NONE)
@throw [OFInitializationFailedException
exceptionWithClass: self];
}
+ (OFArray OF_GENERIC(OFGameController *) *)controllers
{
OFMutableArray *controllers = [OFMutableArray array];
void *pool = objc_autoreleasePoolPush();
for (int32_t i = 0; i < WPAD_MAX_WIIMOTES; i++) {
uint32_t type;
if (WPAD_Probe(i, &type) == WPAD_ERR_NONE &&
(type == WPAD_EXP_NONE || type == WPAD_EXP_NUNCHUK))
[controllers addObject: [[[OFWiiGameController alloc]
of_initWithIndex: i
type: type] autorelease]];
}
[controllers makeImmutable];
objc_autoreleasePoolPop(pool);
return controllers;
}
- (instancetype)of_initWithIndex: (int32_t)index type: (uint32_t)type
{
self = [super init];
@try {
_index = index;
_type = type;
_pressedButtons = [[OFMutableSet alloc] initWithCapacity: 13];
[self retrieveState];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_pressedButtons release];
[super dealloc];
}
- (void)retrieveState
{
WPADData *data;
if (WPAD_ReadPending(_index, NULL) < WPAD_ERR_NONE)
@throw [OFReadFailedException
exceptionWithObject: self
requestedLength: sizeof(WPADData)
errNo: 0];
data = WPAD_Data(_index);
[_pressedButtons removeAllObjects];
if (data->btns_h & WPAD_BUTTON_A)
[_pressedButtons addObject: OFGameControllerEastButton];
if (data->btns_h & WPAD_BUTTON_B)
[_pressedButtons addObject: OFGameControllerRightTriggerButton];
if (data->btns_h & WPAD_BUTTON_1)
[_pressedButtons addObject: OFGameControllerWestButton];
if (data->btns_h & WPAD_BUTTON_2)
[_pressedButtons addObject: OFGameControllerSouthButton];
if (data->btns_h & WPAD_BUTTON_UP)
[_pressedButtons addObject: OFGameControllerDPadUpButton];
if (data->btns_h & WPAD_BUTTON_DOWN)
[_pressedButtons addObject: OFGameControllerDPadDownButton];
if (data->btns_h & WPAD_BUTTON_LEFT)
[_pressedButtons addObject: OFGameControllerDPadLeftButton];
if (data->btns_h & WPAD_BUTTON_RIGHT)
[_pressedButtons addObject: OFGameControllerDPadRightButton];
if (data->btns_h & WPAD_BUTTON_PLUS)
[_pressedButtons addObject: OFGameControllerStartButton];
if (data->btns_h & WPAD_BUTTON_MINUS)
[_pressedButtons addObject: OFGameControllerSelectButton];
if (data->btns_h & WPAD_BUTTON_HOME)
[_pressedButtons addObject: OFGameControllerHomeButton];
if (_type == WPAD_EXP_NUNCHUK) {
joystick_t *js;
if (data->btns_h & WPAD_NUNCHUK_BUTTON_C)
[_pressedButtons addObject:
OFGameControllerLeftShoulderButton];
if (data->btns_h & WPAD_NUNCHUK_BUTTON_Z)
[_pressedButtons addObject:
OFGameControllerLeftTriggerButton];
js = &data->exp.nunchuk.js;
_leftAnalogStickPosition = OFMakePoint(
scale(js->pos.x, js->min.x, js->max.x, js->center.x),
-scale(js->pos.y, js->min.y, js->max.y, js->center.y));
}
}
- (OFString *)name
{
if (_type == WPAD_EXP_NUNCHUK)
return @"Wiimote with Nunchuk";
return @"Wiimote";
}
- (OFSet OF_GENERIC(OFGameControllerButton) *)buttons
{
OFMutableSet *buttons = [OFMutableSet setWithCapacity: 13];
[buttons addObject: OFGameControllerSouthButton];
[buttons addObject: OFGameControllerRightTriggerButton];
[buttons addObject: OFGameControllerWestButton];
[buttons addObject: OFGameControllerEastButton];
[buttons addObject: OFGameControllerDPadUpButton];
[buttons addObject: OFGameControllerDPadDownButton];
[buttons addObject: OFGameControllerDPadLeftButton];
[buttons addObject: OFGameControllerDPadRightButton];
[buttons addObject: OFGameControllerStartButton];
[buttons addObject: OFGameControllerSelectButton];
[buttons addObject: OFGameControllerHomeButton];
if (_type == WPAD_EXP_NUNCHUK) {
[buttons addObject: OFGameControllerLeftShoulderButton];
[buttons addObject: OFGameControllerLeftTriggerButton];
}
[buttons makeImmutable];
return buttons;
}
- (OFSet OF_GENERIC(OFGameControllerButton) *)pressedButtons
{
return [[_pressedButtons copy] autorelease];
}
- (bool)hasLeftAnalogStick
{
return (_type == WPAD_EXP_NUNCHUK);
}
- (bool)hasRightAnalogStick
{
return false;
}
- (OFPoint)leftAnalogStickPosition
{
if (_type != WPAD_EXP_NUNCHUK)
@throw [OFNotImplementedException exceptionWithSelector: _cmd
object: self];
return _leftAnalogStickPosition;
}
@end