usbloadergx/source/input.cpp

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/****************************************************************************
* libwiigui Template
* Tantric 2009
*
* input.cpp
* Wii/GameCube controller management
***************************************************************************/
#include <gccore.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <ogcsys.h>
#include <unistd.h>
#include <wiiuse/wpad.h>
#include "menu.h"
#include "video.h"
#include "input.h"
#include "libwiigui/gui.h"
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int rumbleRequest[4] = { 0, 0, 0, 0 };
GuiTrigger userInput[4];
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static int rumbleCount[4] = { 0, 0, 0, 0 };
/****************************************************************************
* UpdatePads
*
* called by postRetraceCallback in InitGCVideo - scans gcpad and wpad
***************************************************************************/
void UpdatePads()
{
WPAD_ScanPads();
PAD_ScanPads();
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for (int i = 3; i >= 0; i--)
{
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memcpy(&userInput[i].wpad, WPAD_Data(i), sizeof(WPADData));
userInput[i].chan = i;
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userInput[i].pad.btns_d = PAD_ButtonsDown(i);
userInput[i].pad.btns_u = PAD_ButtonsUp(i);
userInput[i].pad.btns_h = PAD_ButtonsHeld(i);
userInput[i].pad.stickX = PAD_StickX(i);
userInput[i].pad.stickY = PAD_StickY(i);
userInput[i].pad.substickX = PAD_SubStickX(i);
userInput[i].pad.substickY = PAD_SubStickY(i);
userInput[i].pad.triggerL = PAD_TriggerL(i);
userInput[i].pad.triggerR = PAD_TriggerR(i);
if (Settings.rumble == RumbleOn) DoRumble(i);
}
}
/****************************************************************************
* SetupPads
*
* Sets up userInput triggers for use
***************************************************************************/
void SetupPads()
{
PAD_Init();
WPAD_Init();
// read wiimote accelerometer and IR data
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WPAD_SetDataFormat(WPAD_CHAN_ALL, WPAD_FMT_BTNS_ACC_IR);
WPAD_SetVRes(WPAD_CHAN_ALL, screenwidth, screenheight);
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for (int i = 0; i < 4; i++)
{
userInput[i].chan = i;
}
}
/****************************************************************************
* ShutoffRumble
***************************************************************************/
void ShutoffRumble()
{
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for (int i = 0; i < 4; i++)
{
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WPAD_Rumble(i, 0);
rumbleCount[i] = 0;
}
}
/****************************************************************************
* DoRumble
***************************************************************************/
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void DoRumble(int i)
{
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if (rumbleRequest[i] && rumbleCount[i] < 3)
{
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WPAD_Rumble(i, 1); // rumble on
rumbleCount[i]++;
}
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else if (rumbleRequest[i])
{
rumbleCount[i] = 20;
rumbleRequest[i] = 0;
}
else
{
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if (rumbleCount[i]) rumbleCount[i]--;
WPAD_Rumble(i, 0); // rumble off
}
}
/****************************************************************************
* WPAD_Stick
*
* Get X/Y value from Wii Joystick (classic, nunchuk) input
***************************************************************************/
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s8 WPAD_Stick(u8 chan, u8 right, int axis)
{
float mag = 0.0;
float ang = 0.0;
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WPADData *data = WPAD_Data(chan);
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switch (data->exp.type)
{
case WPAD_EXP_NUNCHUK:
case WPAD_EXP_GUITARHERO3:
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if (right == 0)
{
mag = data->exp.nunchuk.js.mag;
ang = data->exp.nunchuk.js.ang;
}
break;
case WPAD_EXP_CLASSIC:
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if (right == 0)
{
mag = data->exp.classic.ljs.mag;
ang = data->exp.classic.ljs.ang;
}
else
{
mag = data->exp.classic.rjs.mag;
ang = data->exp.classic.rjs.ang;
}
break;
default:
break;
}
/* calculate x/y value (angle need to be converted into radian) */
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if (mag > 1.0)
mag = 1.0;
else if (mag < -1.0) mag = -1.0;
double val;
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if (axis == 0) // x-axis
val = mag * sin((PI * ang) / 180.0f);
else // y-axis
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val = mag * cos((PI * ang) / 180.0f);
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return (s8) (val * 128.0f);
}