fceugx/source/ngc/pad.c

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2008-09-02 03:57:21 +02:00
/****************************************************************************
* FCE Ultra 0.98.12
* Nintendo Wii/Gamecube Port
*
* Tantric September 2008
*
* pad.c
*
* Controller input
****************************************************************************/
#include <gccore.h>
#include <wiiuse/wpad.h>
#include <math.h>
#include "driver.h"
#include "fceu.h"
#include "fceuconfig.h"
#include "pad.h"
#include "menu.h"
#include "fceustate.h"
// Original NES controller buttons
// All other pads are mapped to this
unsigned int nespadmap[] = {
JOY_B, JOY_A,
JOY_START, JOY_SELECT,
JOY_UP, JOY_DOWN,
JOY_LEFT, JOY_RIGHT
};
/*** Gamecube controller Padmap ***/
unsigned int gcpadmap[] = {
PAD_BUTTON_B, PAD_BUTTON_A,
PAD_TRIGGER_L, PAD_TRIGGER_R,
PAD_BUTTON_UP, PAD_BUTTON_DOWN,
PAD_BUTTON_LEFT, PAD_BUTTON_RIGHT
};
/*** Wiimote Padmap ***/
unsigned int wmpadmap[] = {
WPAD_BUTTON_1, WPAD_BUTTON_2,
WPAD_BUTTON_MINUS, WPAD_BUTTON_PLUS,
WPAD_BUTTON_RIGHT, WPAD_BUTTON_LEFT,
WPAD_BUTTON_UP, WPAD_BUTTON_DOWN
};
/*** Classic Controller Padmap ***/
unsigned int ccpadmap[] = {
WPAD_CLASSIC_BUTTON_Y, WPAD_CLASSIC_BUTTON_B,
WPAD_CLASSIC_BUTTON_MINUS, WPAD_CLASSIC_BUTTON_PLUS,
WPAD_CLASSIC_BUTTON_UP, WPAD_CLASSIC_BUTTON_DOWN,
WPAD_CLASSIC_BUTTON_LEFT, WPAD_CLASSIC_BUTTON_RIGHT
};
/*** Nunchuk + wiimote Padmap ***/
unsigned int ncpadmap[] = {
WPAD_NUNCHUK_BUTTON_C, WPAD_NUNCHUK_BUTTON_Z,
WPAD_BUTTON_MINUS, WPAD_BUTTON_PLUS,
WPAD_BUTTON_UP, WPAD_BUTTON_DOWN,
WPAD_BUTTON_LEFT, WPAD_BUTTON_RIGHT
};
static uint32 JSReturn = 0;
/****************************************************************************
* Initialise Pads
****************************************************************************/
void InitialisePads()
{
int attrib = 0;
void *InputDPR;
FCEUI_DisableFourScore(1);
InputDPR = &JSReturn;
FCEUI_SetInput(0, SI_GAMEPAD, InputDPR, attrib);
FCEUI_SetInput(1, SI_GAMEPAD, InputDPR, attrib);
}
s8 WPAD_StickX(u8 chan,u8 right)
{
float mag = 0.0;
float ang = 0.0;
WPADData *data = WPAD_Data(chan);
switch (data->exp.type)
{
case WPAD_EXP_NUNCHUK:
case WPAD_EXP_GUITARHERO3:
if (right == 0)
{
mag = data->exp.nunchuk.js.mag;
ang = data->exp.nunchuk.js.ang;
}
break;
case WPAD_EXP_CLASSIC:
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 value (angle need to be converted into radian) */
if (mag > 1.0) mag = 1.0;
else if (mag < -1.0) mag = -1.0;
double val = mag * sin((PI * ang)/180.0f);
return (s8)(val * 128.0f);
}
s8 WPAD_StickY(u8 chan, u8 right)
{
float mag = 0.0;
float ang = 0.0;
WPADData *data = WPAD_Data(chan);
switch (data->exp.type)
{
case WPAD_EXP_NUNCHUK:
case WPAD_EXP_GUITARHERO3:
if (right == 0)
{
mag = data->exp.nunchuk.js.mag;
ang = data->exp.nunchuk.js.ang;
}
break;
case WPAD_EXP_CLASSIC:
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 value (angle need to be converted into radian) */
if (mag > 1.0) mag = 1.0;
else if (mag < -1.0) mag = -1.0;
double val = mag * cos((PI * ang)/180.0f);
return (s8)(val * 128.0f);
}
/****************************************************************************
* Convert GC Joystick Readings to JOY
****************************************************************************/
u8 PADTUR = 2;
unsigned char DecodeJoy( unsigned short pad )
{
signed char pad_x = PAD_StickX (pad);
signed char pad_y = PAD_StickY (pad);
u32 jp = PAD_ButtonsHeld (pad);
unsigned char J = 0;
#ifdef HW_RVL
signed char wm_ax = 0;
signed char wm_ay = 0;
u32 wp = 0;
wm_ax = WPAD_StickX ((u8)pad, 0);
wm_ay = WPAD_StickY ((u8)pad, 0);
wp = WPAD_ButtonsHeld (pad);
u32 exp_type;
if ( WPAD_Probe(pad, &exp_type) != 0 ) exp_type = WPAD_EXP_NONE;
#endif
/***
Gamecube Joystick input
***/
// Is XY inside the "zone"?
if (pad_x * pad_x + pad_y * pad_y > PADCAL * PADCAL)
{
if (pad_x > 0 && pad_y == 0) J |= JOY_RIGHT;
if (pad_x < 0 && pad_y == 0) J |= JOY_LEFT;
if (pad_x == 0 && pad_y > 0) J |= JOY_UP;
if (pad_x == 0 && pad_y < 0) J |= JOY_DOWN;
if (pad_x != 0 && pad_y != 0)
{
if ((float)pad_y / pad_x >= -2.41421356237 && (float)pad_y / pad_x < 2.41421356237)
{
if (pad_x >= 0)
J |= JOY_RIGHT;
else
J |= JOY_LEFT;
}
if ((float)pad_x / pad_y >= -2.41421356237 && (float)pad_x / pad_y < 2.41421356237)
{
if (pad_y >= 0)
J |= JOY_UP;
else
J |= JOY_DOWN;
}
}
}
#ifdef HW_RVL
/***
Wii Joystick (classic, nunchuk) input
***/
// Is XY inside the "zone"?
if (wm_ax * wm_ax + wm_ay * wm_ay > PADCAL * PADCAL)
{
/*** we don't want division by zero ***/
if (wm_ax > 0 && wm_ay == 0)
J |= JOY_RIGHT;
if (wm_ax < 0 && wm_ay == 0)
J |= JOY_LEFT;
if (wm_ax == 0 && wm_ay > 0)
J |= JOY_UP;
if (wm_ax == 0 && wm_ay < 0)
J |= JOY_DOWN;
if (wm_ax != 0 && wm_ay != 0)
{
/*** Recalc left / right ***/
float t;
t = (float) wm_ay / wm_ax;
if (t >= -2.41421356237 && t < 2.41421356237)
{
if (wm_ax >= 0)
J |= JOY_RIGHT;
else
J |= JOY_LEFT;
}
/*** Recalc up / down ***/
t = (float) wm_ax / wm_ay;
if (t >= -2.41421356237 && t < 2.41421356237)
{
if (wm_ay >= 0)
J |= JOY_UP;
else
J |= JOY_DOWN;
}
}
}
#endif
/*** Report pressed buttons (gamepads) ***/
int i;
for (i = 0; i < MAXJP; i++)
{
if ( (jp & gcpadmap[i]) // gamecube controller
#ifdef HW_RVL
|| ( (exp_type == WPAD_EXP_NONE) && (wp & wmpadmap[i]) ) // wiimote
|| ( (exp_type == WPAD_EXP_CLASSIC) && (wp & ccpadmap[i]) ) // classic controller
|| ( (exp_type == WPAD_EXP_NUNCHUK) && (wp & ncpadmap[i]) ) // nunchuk + wiimote
#endif
)
J |= nespadmap[i];
}
return J;
}
void GetJoy()
{
unsigned char pad[4];
short i;
s8 gc_px = PAD_SubStickX (0);
u32 jp = PAD_ButtonsHeld (0); // gamecube controller button info
#ifdef HW_RVL
s8 wm_sx = WPAD_StickX (0,1);
u32 wm_pb = WPAD_ButtonsHeld (0); // wiimote / expansion button info
#endif
// request to go back to menu
if ((gc_px < -70) || (jp & PAD_BUTTON_START)
#ifdef HW_RVL
|| (wm_pb & WPAD_BUTTON_HOME)
|| (wm_pb & WPAD_CLASSIC_BUTTON_HOME)
|| (wm_sx < -70)
#endif
)
{
AUDIO_StopDMA();
if (GCSettings.AutoLoad == 1)
SaveState(GCSettings.SaveMethod, SILENT);
MainMenu(4);
}
else
{
for (i = 0; i < 4; i++)
pad[i] = DecodeJoy(i);
JSReturn = pad[0] | pad[1] << 8 | pad[2] << 16 | pad[3] << 24;
}
}