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new joystick math

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dborth 2012-01-27 02:34:53 +00:00
parent e6944044f2
commit f4d21e2abd
1 changed files with 18 additions and 54 deletions
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72
source/pad.cpp
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@ -375,6 +375,8 @@ static unsigned char DecodeJoy(unsigned short chan)
s8 pad_y = userInput[chan].pad.stickY;
u32 jp = userInput[chan].pad.btns_h;
unsigned char J = 0;
double angle;
static const double THRES = 1.0 / sqrt(2.0);
#ifdef HW_RVL
s8 wm_ax = userInput[chan].WPAD_StickX(0);
@ -391,29 +393,16 @@ static unsigned char DecodeJoy(unsigned short chan)
// 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;
}
}
angle = atan2(pad_y, pad_x);
if(cos(angle) > THRES)
J |= JOY_RIGHT;
else if(cos(angle) < -THRES)
J |= JOY_LEFT;
if(sin(angle) > THRES)
J |= JOY_UP;
else if(sin(angle) < -THRES)
J |= JOY_DOWN;
}
#ifdef HW_RVL
/***
@ -422,41 +411,16 @@ static unsigned char DecodeJoy(unsigned short chan)
// 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)
angle = atan2(wm_ay, wm_ax);
if(cos(angle) > THRES)
J |= JOY_RIGHT;
if (wm_ax < 0 && wm_ay == 0)
else if(cos(angle) < -THRES)
J |= JOY_LEFT;
if (wm_ax == 0 && wm_ay > 0)
if(sin(angle) > THRES)
J |= JOY_UP;
if (wm_ax == 0 && wm_ay < 0)
else if(sin(angle) < -THRES)
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