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input.c
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/* -*- mode: c; tab-width: 4; c-basic-offset: 3; c-file-style: "linux" -*- */
//
// Copyright (c) 2009, Wei Mingzhi <[email protected]>.
// Portions Copyright (c) 2009, netwan.
//
// All rights reserved.
//
// This file is part of SDLPAL.
//
// SDLPAL is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#include "main.h"
#include <math.h>
#ifdef __N3DS__
#include <3ds.h>
#endif
volatile PALINPUTSTATE g_InputState;
static SDL_Joystick *g_pJoy = NULL;
BOOL g_fUseJoystick = TRUE;
#if defined(GPH)
#define MIN_DEADZONE -16384
#define MAX_DEADZONE 16384
#endif
#if defined(__WINPHONE__)
unsigned int g_uiLastBackKeyTime = 0;
#endif
static VOID
PAL_KeyboardEventFilter(
const SDL_Event *lpEvent
)
/*++
Purpose:
Handle keyboard events.
Parameters:
[IN] lpEvent - pointer to the event.
Return value:
None.
--*/
{
switch (lpEvent->type)
{
case SDL_KEYDOWN:
//
// Pressed a key
//
if (lpEvent->key.keysym.mod & KMOD_ALT)
{
if (lpEvent->key.keysym.sym == SDLK_RETURN)
{
//
// Pressed Alt+Enter (toggle fullscreen)...
//
VIDEO_ToggleFullscreen();
return;
}
else if (lpEvent->key.keysym.sym == SDLK_F4)
{
//
// Pressed Alt+F4 (Exit program)...
//
PAL_Shutdown();
exit(0);
}
}
switch (lpEvent->key.keysym.sym)
{
#ifdef __SYMBIAN32__
//
// Symbian-specific stuff
//
case SDLK_0:
VIDEO_ToggleScaleScreen();
break;
case SDLK_1:
SOUND_AdjustVolume(0);
break;
case SDLK_3:
SOUND_AdjustVolume(1);
break;
#endif
#ifdef __WINPHONE__
case SDLK_AC_BACK:
if (g_uiLastBackKeyTime != 0 && SDL_GetTicks() - g_uiLastBackKeyTime < 800)
{
PAL_Shutdown();
exit(0);
}
g_uiLastBackKeyTime = SDL_GetTicks();
VIDEO_UpdateScreen(NULL);
break;
#endif
case SDLK_UP:
case SDLK_KP8:
if (gpGlobals->fInBattle || g_InputState.dir != kDirNorth)
{
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirNorth;
g_InputState.dwKeyPress |= kKeyUp;
}
break;
case SDLK_DOWN:
case SDLK_KP2:
if (gpGlobals->fInBattle || g_InputState.dir != kDirSouth)
{
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirSouth;
g_InputState.dwKeyPress |= kKeyDown;
}
break;
case SDLK_LEFT:
case SDLK_KP4:
if (gpGlobals->fInBattle || g_InputState.dir != kDirWest)
{
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirWest;
g_InputState.dwKeyPress |= kKeyLeft;
}
break;
case SDLK_RIGHT:
case SDLK_KP6:
if (gpGlobals->fInBattle || g_InputState.dir != kDirEast)
{
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirEast;
g_InputState.dwKeyPress |= kKeyRight;
}
break;
#if defined(DINGOO)
case SDLK_SPACE:
g_InputState.dwKeyPress = kKeyMenu;
break;
case SDLK_LCTRL:
g_InputState.dwKeyPress = kKeySearch;
break;
#else
case SDLK_ESCAPE:
case SDLK_INSERT:
case SDLK_LALT:
case SDLK_RALT:
case SDLK_KP0:
g_InputState.dwKeyPress |= kKeyMenu;
break;
case SDLK_RETURN:
case SDLK_SPACE:
case SDLK_KP_ENTER:
case SDLK_LCTRL:
g_InputState.dwKeyPress |= kKeySearch;
break;
case SDLK_PAGEUP:
case SDLK_KP9:
g_InputState.dwKeyPress |= kKeyPgUp;
break;
case SDLK_PAGEDOWN:
case SDLK_KP3:
g_InputState.dwKeyPress |= kKeyPgDn;
break;
case SDLK_7: //7 for mobile device
case SDLK_r:
g_InputState.dwKeyPress |= kKeyRepeat;
break;
case SDLK_2: //2 for mobile device
case SDLK_a:
g_InputState.dwKeyPress |= kKeyAuto;
break;
case SDLK_d:
g_InputState.dwKeyPress |= kKeyDefend;
break;
case SDLK_e:
g_InputState.dwKeyPress |= kKeyUseItem;
break;
case SDLK_w:
g_InputState.dwKeyPress |= kKeyThrowItem;
break;
case SDLK_q:
g_InputState.dwKeyPress |= kKeyFlee;
break;
case SDLK_s:
g_InputState.dwKeyPress |= kKeyStatus;
break;
case SDLK_f:
case SDLK_5: // 5 for mobile device
g_InputState.dwKeyPress |= kKeyForce;
break;
case SDLK_HASH: //# for mobile device
case SDLK_p:
VIDEO_SaveScreenshot();
break;
#endif
default:
break;
}
break;
case SDL_KEYUP:
//
// Released a key
//
switch (lpEvent->key.keysym.sym)
{
case SDLK_UP:
case SDLK_KP8:
if (g_InputState.dir == kDirNorth)
{
g_InputState.dir = g_InputState.prevdir;
}
g_InputState.prevdir = kDirUnknown;
break;
case SDLK_DOWN:
case SDLK_KP2:
if (g_InputState.dir == kDirSouth)
{
g_InputState.dir = g_InputState.prevdir;
}
g_InputState.prevdir = kDirUnknown;
break;
case SDLK_LEFT:
case SDLK_KP4:
if (g_InputState.dir == kDirWest)
{
g_InputState.dir = g_InputState.prevdir;
}
g_InputState.prevdir = kDirUnknown;
break;
case SDLK_RIGHT:
case SDLK_KP6:
if (g_InputState.dir == kDirEast)
{
g_InputState.dir = g_InputState.prevdir;
}
g_InputState.prevdir = kDirUnknown;
break;
default:
break;
}
break;
}
}
static VOID
PAL_MouseEventFilter(
const SDL_Event *lpEvent
)
/*++
Purpose:
Handle mouse events.
Parameters:
[IN] lpEvent - pointer to the event.
Return value:
None.
--*/
{
#ifdef PAL_HAS_MOUSE
static short hitTest = 0; // Double click detect;
const SDL_VideoInfo *vi;
double screenWidth, gridWidth;
double screenHeight, gridHeight;
double mx, my;
double thumbx;
double thumby;
INT gridIndex;
BOOL isLeftMouseDBClick = FALSE;
BOOL isLeftMouseClick = FALSE;
BOOL isRightMouseClick = FALSE;
static INT lastReleaseButtonTime, lastPressButtonTime, betweenTime;
static INT lastPressx = 0;
static INT lastPressy = 0;
static INT lastReleasex = 0;
static INT lastReleasey = 0;
if (lpEvent->type!= SDL_MOUSEBUTTONDOWN && lpEvent->type != SDL_MOUSEBUTTONUP)
return;
vi = SDL_GetVideoInfo();
screenWidth = vi->current_w;
screenHeight = vi->current_h;
gridWidth = screenWidth / 3;
gridHeight = screenHeight / 3;
mx = lpEvent->button.x;
my = lpEvent->button.y;
thumbx = ceil(mx / gridWidth);
thumby = floor(my / gridHeight);
gridIndex = thumbx + thumby * 3 - 1;
switch (lpEvent->type)
{
case SDL_MOUSEBUTTONDOWN:
lastPressButtonTime = SDL_GetTicks();
lastPressx = lpEvent->button.x;
lastPressy = lpEvent->button.y;
switch (gridIndex)
{
case 2:
g_InputState.prevdir = g_InputState.dir;
g_InputState.dir = kDirNorth;
break;
case 6:
g_InputState.prevdir = g_InputState.dir;
g_InputState.dir = kDirSouth;
break;
case 0:
g_InputState.prevdir = g_InputState.dir;
g_InputState.dir = kDirWest;
break;
case 8:
g_InputState.prevdir = g_InputState.dir;
g_InputState.dir = kDirEast;
break;
case 1:
//g_InputState.prevdir = g_InputState.dir;
//g_InputState.dir = kDirNorth;
g_InputState.dwKeyPress |= kKeyUp;
break;
case 7:
//g_InputState.prevdir = g_InputState.dir;
//g_InputState.dir = kDirSouth;
g_InputState.dwKeyPress |= kKeyDown;
break;
case 3:
//g_InputState.prevdir = g_InputState.dir;
//g_InputState.dir = kDirWest;
g_InputState.dwKeyPress |= kKeyLeft;
break;
case 5:
//g_InputState.prevdir = g_InputState.dir;
//g_InputState.dir = kDirEast;
g_InputState.dwKeyPress |= kKeyRight;
break;
}
break;
case SDL_MOUSEBUTTONUP:
lastReleaseButtonTime = SDL_GetTicks();
lastReleasex = lpEvent->button.x;
lastReleasey = lpEvent->button.y;
hitTest ++;
if (abs(lastPressx - lastReleasex) < 25 &&
abs(lastPressy - lastReleasey) < 25)
{
betweenTime = lastReleaseButtonTime - lastPressButtonTime;
if (betweenTime >500)
{
isRightMouseClick = TRUE;
}
else if (betweenTime >=0)
{
if((betweenTime < 100) && (hitTest >= 2))
{
isLeftMouseClick = TRUE;
hitTest = 0;
}
else
{
isLeftMouseClick = TRUE;
if(betweenTime > 100)
{
hitTest = 0;
}
}
}
}
switch (gridIndex)
{
case 2:
if( isLeftMouseDBClick )
{
SOUND_AdjustVolume(1);
break;
}
case 6:
case 0:
if( isLeftMouseDBClick )
{
SOUND_AdjustVolume(0);
break;
}
case 7:
if (isRightMouseClick) //repeat attack
{
g_InputState.dwKeyPress |= kKeyRepeat;
break;
}
case 8:
g_InputState.dir = kDirUnknown;
g_InputState.prevdir = kDirUnknown;
break;
case 1:
if( isRightMouseClick )
{
g_InputState.dwKeyPress |= kKeyForce;
}
break;
case 3:
if( isRightMouseClick )
{
g_InputState.dwKeyPress |= kKeyAuto;
}
break;
case 5:
if( isRightMouseClick )
{
g_InputState.dwKeyPress |= kKeyDefend;
}
break;
case 4:
if (isRightMouseClick) // menu
{
g_InputState.dwKeyPress |= kKeyMenu;
}
else if (isLeftMouseClick) // search
{
g_InputState.dwKeyPress |= kKeySearch;
}
break;
}
break;
}
#endif
}
static VOID
PAL_JoystickEventFilter(
const SDL_Event *lpEvent
)
/*++
Purpose:
Handle joystick events.
Parameters:
[IN] lpEvent - pointer to the event.
Return value:
None.
--*/
{
#ifdef PAL_HAS_JOYSTICKS
switch (lpEvent->type)
{
#if defined (GEKKO)
case SDL_JOYHATMOTION:
switch (lpEvent->jhat.value)
{
case SDL_HAT_LEFT:
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirWest;
g_InputState.dwKeyPress = kKeyLeft;
break;
case SDL_HAT_RIGHT:
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirEast;
g_InputState.dwKeyPress = kKeyRight;
break;
case SDL_HAT_UP:
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirNorth;
g_InputState.dwKeyPress = kKeyUp;
break;
case SDL_HAT_DOWN:
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirSouth;
g_InputState.dwKeyPress = kKeyDown;
break;
}
break;
#else
case SDL_JOYAXISMOTION:
//
// Moved an axis on joystick
//
switch (lpEvent->jaxis.axis)
{
case 0:
//
// X axis
//
#if defined(GPH)
if (lpEvent->jaxis.value > MAX_DEADZONE) {
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirEast;
g_InputState.dwKeyPress = kKeyRight;
} else if (lpEvent->jaxis.value < MIN_DEADZONE) {
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirWest;
g_InputState.dwKeyPress = kKeyLeft;
} else {
g_InputState.dir = kDirUnknown;
}
#else
if (lpEvent->jaxis.value > 20000)
{
if (g_InputState.dir != kDirEast)
{
g_InputState.dwKeyPress |= kKeyRight;
}
g_InputState.prevdir = g_InputState.dir;
g_InputState.dir = kDirEast;
}
else if (lpEvent->jaxis.value < -20000)
{
if (g_InputState.dir != kDirWest)
{
g_InputState.dwKeyPress |= kKeyLeft;
}
g_InputState.prevdir = g_InputState.dir;
g_InputState.dir = kDirWest;
}
else
{
if (g_InputState.prevdir != kDirEast &&
g_InputState.prevdir != kDirWest)
{
g_InputState.dir = g_InputState.prevdir;
}
g_InputState.prevdir = kDirUnknown;
}
#endif
break;
case 1:
//
// Y axis
//
#if defined(GPH)
if (lpEvent->jaxis.value > MAX_DEADZONE) {
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirSouth;
g_InputState.dwKeyPress = kKeyDown;
} else if (lpEvent->jaxis.value < MIN_DEADZONE) {
g_InputState.prevdir = (gpGlobals->fInBattle ? kDirUnknown : g_InputState.dir);
g_InputState.dir = kDirNorth;
g_InputState.dwKeyPress = kKeyUp;
} else {
g_InputState.dir = kDirUnknown;
}
#else
if (lpEvent->jaxis.value > 20000)
{
if (g_InputState.dir != kDirSouth)
{
g_InputState.dwKeyPress |= kKeyDown;
}
g_InputState.prevdir = g_InputState.dir;
g_InputState.dir = kDirSouth;
}
else if (lpEvent->jaxis.value < -20000)
{
if (g_InputState.dir != kDirNorth)
{
g_InputState.dwKeyPress |= kKeyUp;
}
g_InputState.prevdir = g_InputState.dir;
g_InputState.dir = kDirNorth;
}
else
{
if (g_InputState.prevdir != kDirNorth &&
g_InputState.prevdir != kDirSouth)
{
g_InputState.dir = g_InputState.prevdir;
}
g_InputState.prevdir = kDirUnknown;
}
#endif
break;
}
break;
#endif
case SDL_JOYBUTTONDOWN:
//
// Pressed the joystick button
//
#if defined(GPH)
switch (lpEvent->jbutton.button)
{
#if defined(GP2XWIZ)
case 14:
#elif defined(CAANOO)
case 3:
#endif
g_InputState.dwKeyPress = kKeyMenu;
break;
#if defined(GP2XWIZ)
case 13:
#elif defined(CAANOO)
case 2:
#endif
g_InputState.dwKeyPress = kKeySearch;
break;
#else
#if defined(GEKKO)
switch (lpEvent->jbutton.button)
{
case 2:
g_InputState.dwKeyPress |= kKeyMenu;
break;
case 3:
g_InputState.dwKeyPress |= kKeySearch;
break;
#else
switch (lpEvent->jbutton.button & 1)
{
case 0:
g_InputState.dwKeyPress |= kKeyMenu;
break;
case 1:
g_InputState.dwKeyPress |= kKeySearch;
break;
#endif
#endif
}
break;
}
#endif
}
#ifdef PAL_HAS_TOUCH
#define TOUCH_NONE 0
#define TOUCH_UP 1
#define TOUCH_DOWN 2
#define TOUCH_LEFT 3
#define TOUCH_RIGHT 4
#define TOUCH_BUTTON1 5
#define TOUCH_BUTTON2 6
#define TOUCH_BUTTON3 7
#define TOUCH_BUTTON4 8
static int
PAL_GetTouchArea(
float X,
float Y
)
{
if (Y < 0.5)
{
//
// Upper area
//
return TOUCH_NONE;
}
else if (X < 1.0 / 3)
{
if (Y - 0.5 < (1.0 / 6 - fabs(X - 1.0 / 3 / 2)) * (0.5 / (1.0 / 3)))
{
return TOUCH_UP;
}
else if (Y - 0.75 > fabs(X - 1.0 / 3 / 2) * (0.5 / (1.0 / 3)))
{
return TOUCH_DOWN;
}
else if (X < 1.0 / 3 / 2 && fabs(Y - 0.75) < 0.25 - X * (0.5 / (1.0 / 3)))
{
return TOUCH_LEFT;
}
else
{
return TOUCH_RIGHT;
}
}
else if (X > 1.0 - 1.0 / 3)
{
if (X < 1.0 - (1.0 / 3 / 2))
{
if (Y < 0.75)
{
return TOUCH_BUTTON1;
}
else
{
return TOUCH_BUTTON3;
}
}
else
{
if (Y < 0.75)
{
return TOUCH_BUTTON2;
}
else
{
return TOUCH_BUTTON4;
}
}
}
return TOUCH_NONE;
}
static VOID
PAL_SetTouchAction(
int area
)
{
switch (area)
{
case TOUCH_UP:
g_InputState.dir = kDirNorth;
g_InputState.dwKeyPress |= kKeyUp;
break;
case TOUCH_DOWN:
g_InputState.dir = kDirSouth;
g_InputState.dwKeyPress |= kKeyDown;
break;
case TOUCH_LEFT:
g_InputState.dir = kDirWest;
g_InputState.dwKeyPress |= kKeyLeft;
break;
case TOUCH_RIGHT:
g_InputState.dir = kDirEast;
g_InputState.dwKeyPress |= kKeyRight;
break;
case TOUCH_BUTTON1:
if (gpGlobals->fInBattle)
{
g_InputState.dwKeyPress |= kKeyRepeat;
}
else
{
g_InputState.dwKeyPress |= kKeyForce;
}
break;
case TOUCH_BUTTON2:
g_InputState.dwKeyPress |= kKeyMenu;
break;
case TOUCH_BUTTON3:
g_InputState.dwKeyPress |= kKeyUseItem;
break;
case TOUCH_BUTTON4:
g_InputState.dwKeyPress |= kKeySearch;
break;
}
}
static VOID
PAL_UnsetTouchAction(
int area
)
{
switch (area)
{
case TOUCH_UP:
case TOUCH_DOWN:
case TOUCH_LEFT:
case TOUCH_RIGHT:
g_InputState.dir = kDirUnknown;
break;
}
}
#endif
static VOID
PAL_TouchEventFilter(
const SDL_Event *lpEvent
)
/*++
Purpose:
Handle touch events.
Parameters:
[IN] lpEvent - pointer to the event.
Return value:
None.
--*/
{
#ifdef PAL_HAS_TOUCH
static SDL_TouchID finger1 = -1, finger2 = -1;
static int prev_touch1 = TOUCH_NONE;
static int prev_touch2 = TOUCH_NONE;
switch (lpEvent->type)
{
case SDL_FINGERDOWN:
if (finger1 == -1)
{
int area = PAL_GetTouchArea(lpEvent->tfinger.x, lpEvent->tfinger.y);
finger1 = lpEvent->tfinger.fingerId;
prev_touch1 = area;
PAL_SetTouchAction(area);
}
else if (finger2 == -1)
{
int area = PAL_GetTouchArea(lpEvent->tfinger.x, lpEvent->tfinger.y);
finger2 = lpEvent->tfinger.fingerId;
prev_touch2 = area;
PAL_SetTouchAction(area);
}
break;
case SDL_FINGERUP:
if (lpEvent->tfinger.fingerId == finger1)
{
PAL_UnsetTouchAction(prev_touch1);
finger1 = -1;
prev_touch1 = TOUCH_NONE;
}
else if (lpEvent->tfinger.fingerId == finger2)
{
PAL_UnsetTouchAction(prev_touch2);
finger2 = -1;
prev_touch2 = TOUCH_NONE;
}
break;
case SDL_FINGERMOTION:
if (lpEvent->tfinger.fingerId == finger1)
{
int area = PAL_GetTouchArea(lpEvent->tfinger.x, lpEvent->tfinger.y);
if (prev_touch1 != area && area != TOUCH_NONE)
{
PAL_UnsetTouchAction(prev_touch1);
prev_touch1 = area;
PAL_SetTouchAction(area);
}
}
else if (lpEvent->tfinger.fingerId == finger2)
{
int area = PAL_GetTouchArea(lpEvent->tfinger.x, lpEvent->tfinger.y);
if (prev_touch2 != area && area != TOUCH_NONE)
{
PAL_UnsetTouchAction(prev_touch2);
prev_touch2 = area;
PAL_SetTouchAction(area);
}
}
break;
}
#endif
}
static int SDLCALL
PAL_EventFilter(
const SDL_Event *lpEvent
)
/*++
Purpose:
SDL event filter function. A filter to process all events.
Parameters:
[IN] lpEvent - pointer to the event.
Return value:
1 = the event will be added to the internal queue.
0 = the event will be dropped from the queue.
--*/
{
switch (lpEvent->type)
{
#if SDL_VERSION_ATLEAST(2,0,0)
case SDL_WINDOWEVENT:
if (lpEvent->window.event == SDL_WINDOWEVENT_RESIZED)
{
//
// resized the window
//
VIDEO_Resize(lpEvent->window.data1, lpEvent->window.data2);
}
break;
#ifdef __IOS__
case SDL_APP_WILLENTERBACKGROUND:
g_bRenderPaused = TRUE;
break;
case SDL_APP_DIDENTERFOREGROUND:
g_bRenderPaused = FALSE;
VIDEO_UpdateScreen(NULL);
break;
#endif
#else
case SDL_VIDEORESIZE:
//
// resized the window
//
VIDEO_Resize(lpEvent->resize.w, lpEvent->resize.h);
break;
#endif
case SDL_QUIT:
//
// clicked on the close button of the window. Quit immediately.
//
PAL_Shutdown();
exit(0);
}
PAL_KeyboardEventFilter(lpEvent);
PAL_MouseEventFilter(lpEvent);
PAL_JoystickEventFilter(lpEvent);
PAL_TouchEventFilter(lpEvent);
//
// All events are handled here; don't put anything to the internal queue
//
return 0;
}
VOID
PAL_ClearKeyState(
VOID
)
/*++
Purpose:
Clear the record of pressed keys.
Parameters:
None.
Return value:
None.