scummvm/backends/platform/android/touchcontrols.h
2021-11-29 00:04:45 +01:00

113 lines
3.1 KiB
C++

/* ResidualVM - A 3D game interpreter
*
* ResidualVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef ANDROID_TOUCHCONTROLS_H_
#define ANDROID_TOUCHCONTROLS_H_
#if defined(__ANDROID__)
#include "common/events.h"
#include "backends/graphics3d/android/texture.h"
class TouchControls {
public:
// action type
enum Action {
JACTION_DOWN = 0,
JACTION_MOVE = 1,
JACTION_UP = 2,
JACTION_CANCEL = 3
};
TouchControls();
~TouchControls();
void init(int width, int height);
void draw();
void update(Action action, int ptr, int x, int y);
private:
int _screen_width, _screen_height;
enum Function {
kFunctionNone = -1,
kFunctionJoystick = 0,
kFunctionCenter = 1,
kFunctionRight = 2,
kFunctionMax = 2
};
Function getFunction(int x, int y);
struct Pointer {
Pointer() : id(-1), startX(-1), startY(-1), currentX(-1), currentY(-1), function(kFunctionNone), active(false) {}
void reset() { id = -1; startX = startY = currentX = currentY = -1; function = kFunctionNone; active = false; }
int id;
uint16 startX, startY;
uint16 currentX, currentY;
Function function;
bool active;
};
enum { kNumPointers = 5 };
Pointer _pointers[kNumPointers];
Pointer *getPointerFromId(int ptr, bool createNotFound);
Pointer *findPointerFromFunction(Function function);
struct FunctionState {
FunctionState() : main(Common::KEYCODE_INVALID), modifier(Common::KEYCODE_INVALID) { }
void reset() { main = Common::KEYCODE_INVALID; modifier = Common::KEYCODE_INVALID; clip = Common::Rect(); }
Common::KeyCode main;
Common::KeyCode modifier;
Common::Rect clip;
};
FunctionState _functionStates[kFunctionMax + 1];
GLESTexture *_arrows_texture;
void keyDown(Common::KeyCode kc);
void keyUp(Common::KeyCode kc);
void keyPress(Common::KeyCode kc);
/* Functions implementations */
struct FunctionBehavior {
void (*touchToState)(int, int, TouchControls::FunctionState &);
bool keyPressOnRelease;
float xRatio;
float yRatio;
};
static FunctionBehavior functionBehaviors[TouchControls::kFunctionMax+1];
static void touchToJoystickState(int dX, int dY, FunctionState &state);
static void touchToCenterState(int dX, int dY, FunctionState &state);
static void touchToRightState(int dX, int dY, FunctionState &state);
};
#endif
#endif