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simplify logic for controller analog sticks

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This commit is contained in:
Daryl Borth 2018-08-30 16:08:07 -06:00
parent a5801017f0
commit 501762e1ce
1 changed files with 26 additions and 40 deletions
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66
source/pad.cpp
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@ -10,7 +10,6 @@
****************************************************************************/ ****************************************************************************/
#include <gccore.h> #include <gccore.h>
#include <math.h>
#include <ogc/lwp_watchdog.h> #include <ogc/lwp_watchdog.h>
#include "fceugx.h" #include "fceugx.h"
@ -24,6 +23,8 @@
#include "fceuload.h" #include "fceuload.h"
#include "gui/gui.h" #include "gui/gui.h"
#define ANALOG_SENSITIVITY 30
int rumbleRequest[4] = {0,0,0,0}; int rumbleRequest[4] = {0,0,0,0};
GuiTrigger userInput[4]; GuiTrigger userInput[4];
@ -305,25 +306,24 @@ static int pos_y = 0;
static void UpdateCursorPosition (int chan) static void UpdateCursorPosition (int chan)
{ {
#define ZAPPERPADCAL 20 #define ZAPPERPADCAL 20
// gc left joystick
if (userInput[chan].pad.stickX > ZAPPERPADCAL) if (userInput[chan].pad.stickX > ANALOG_SENSITIVITY)
{ {
pos_x += (userInput[chan].pad.stickX*1.0)/ZAPPERPADCAL; pos_x += (userInput[chan].pad.stickX*1.0)/ZAPPERPADCAL;
if (pos_x > 256) pos_x = 256; if (pos_x > 256) pos_x = 256;
} }
if (userInput[chan].pad.stickX < -ZAPPERPADCAL) else if (userInput[chan].pad.stickX < -ANALOG_SENSITIVITY)
{ {
pos_x -= (userInput[chan].pad.stickX*-1.0)/ZAPPERPADCAL; pos_x -= (userInput[chan].pad.stickX*-1.0)/ZAPPERPADCAL;
if (pos_x < 0) pos_x = 0; if (pos_x < 0) pos_x = 0;
} }
if (userInput[chan].pad.stickY < -ZAPPERPADCAL) if (userInput[chan].pad.stickY < -ANALOG_SENSITIVITY)
{ {
pos_y += (userInput[chan].pad.stickY*-1.0)/ZAPPERPADCAL; pos_y += (userInput[chan].pad.stickY*-1.0)/ZAPPERPADCAL;
if (pos_y > 224) pos_y = 224; if (pos_y > 224) pos_y = 224;
} }
if (userInput[chan].pad.stickY > ZAPPERPADCAL) else if (userInput[chan].pad.stickY > ANALOG_SENSITIVITY)
{ {
pos_y -= (userInput[chan].pad.stickY*1.0)/ZAPPERPADCAL; pos_y -= (userInput[chan].pad.stickY*1.0)/ZAPPERPADCAL;
if (pos_y < 0) pos_y = 0; if (pos_y < 0) pos_y = 0;
@ -340,22 +340,22 @@ static void UpdateCursorPosition (int chan)
s8 wm_ax = userInput[chan].WPAD_StickX(0); s8 wm_ax = userInput[chan].WPAD_StickX(0);
s8 wm_ay = userInput[chan].WPAD_StickY(0); s8 wm_ay = userInput[chan].WPAD_StickY(0);
if (wm_ax > ZAPPERPADCAL) if (wm_ax > ANALOG_SENSITIVITY)
{ {
pos_x += (wm_ax*1.0)/ZAPPERPADCAL; pos_x += (wm_ax*1.0)/ZAPPERPADCAL;
if (pos_x > 256) pos_x = 256; if (pos_x > 256) pos_x = 256;
} }
if (wm_ax < -ZAPPERPADCAL) else if (wm_ax < -ANALOG_SENSITIVITY)
{ {
pos_x -= (wm_ax*-1.0)/ZAPPERPADCAL; pos_x -= (wm_ax*-1.0)/ZAPPERPADCAL;
if (pos_x < 0) pos_x = 0; if (pos_x < 0) pos_x = 0;
} }
if (wm_ay < -ZAPPERPADCAL) if (wm_ay < -ANALOG_SENSITIVITY)
{ {
pos_y += (wm_ay*-1.0)/ZAPPERPADCAL; pos_y += (wm_ay*-1.0)/ZAPPERPADCAL;
if (pos_y > 224) pos_y = 224; if (pos_y > 224) pos_y = 224;
} }
if (wm_ay > ZAPPERPADCAL) else if (wm_ay > ANALOG_SENSITIVITY)
{ {
pos_y -= (wm_ay*1.0)/ZAPPERPADCAL; pos_y -= (wm_ay*1.0)/ZAPPERPADCAL;
if (pos_y < 0) pos_y = 0; if (pos_y < 0) pos_y = 0;
@ -376,8 +376,6 @@ static unsigned char DecodeJoy(unsigned short chan)
s8 pad_y = userInput[chan].pad.stickY; s8 pad_y = userInput[chan].pad.stickY;
u32 jp = userInput[chan].pad.btns_h; u32 jp = userInput[chan].pad.btns_h;
unsigned char J = 0; unsigned char J = 0;
double angle;
static const double THRES = 0.38268343236508984; // cos(67.5)
#ifdef HW_RVL #ifdef HW_RVL
s8 wm_ax = userInput[chan].WPAD_StickX(0); s8 wm_ax = userInput[chan].WPAD_StickX(0);
@ -393,38 +391,26 @@ static unsigned char DecodeJoy(unsigned short chan)
/*** /***
Gamecube Joystick input Gamecube Joystick input
***/ ***/
// Is XY inside the "zone"? if (pad_y > ANALOG_SENSITIVITY)
if (pad_x * pad_x + pad_y * pad_y > PADCAL * PADCAL) J |= JOY_UP;
{ else if (pad_y < -ANALOG_SENSITIVITY)
angle = atan2(pad_y, pad_x); J |= JOY_DOWN;
if (pad_x < -ANALOG_SENSITIVITY)
if(cos(angle) > THRES) J |= JOY_LEFT;
J |= JOY_RIGHT; else if (pad_x > ANALOG_SENSITIVITY)
else if(cos(angle) < -THRES) J |= JOY_RIGHT;
J |= JOY_LEFT;
if(sin(angle) > THRES)
J |= JOY_UP;
else if(sin(angle) < -THRES)
J |= JOY_DOWN;
}
#ifdef HW_RVL #ifdef HW_RVL
/*** /***
Wii Joystick (classic, nunchuk) input Wii Joystick (classic, nunchuk) input
***/ ***/
// Is XY inside the "zone"? if (wm_ay > ANALOG_SENSITIVITY)
if (wm_ax * wm_ax + wm_ay * wm_ay > PADCAL * PADCAL) J |= JOY_UP;
{ else if (wm_ay < -ANALOG_SENSITIVITY)
angle = atan2(wm_ay, wm_ax); J |= JOY_DOWN;
if (wm_ax < -ANALOG_SENSITIVITY)
if(cos(angle) > THRES) J |= JOY_LEFT;
J |= JOY_RIGHT; else if (wm_ax > ANALOG_SENSITIVITY)
else if(cos(angle) < -THRES) J |= JOY_RIGHT;
J |= JOY_LEFT;
if(sin(angle) > THRES)
J |= JOY_UP;
else if(sin(angle) < -THRES)
J |= JOY_DOWN;
}
#endif #endif
bool zapper_triggered = false; bool zapper_triggered = false;