mirror of
https://github.com/libretro/scummvm.git
synced 2025-01-09 19:32:11 +00:00
354 lines
9.4 KiB
C++
354 lines
9.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
|
|
*
|
|
* ScummVM 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 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/>.
|
|
*
|
|
*/
|
|
|
|
// Allow use of stuff in <time.h>
|
|
#define FORBIDDEN_SYMBOL_EXCEPTION_time_h
|
|
|
|
//
|
|
// Disable printf override in common/forbidden.h to avoid
|
|
// clashes with log.h from the Android SDK.
|
|
// That header file uses
|
|
// __attribute__ ((format(printf, 3, 4)))
|
|
// which gets messed up by our override mechanism; this could
|
|
// be avoided by either changing the Android SDK to use the equally
|
|
// legal and valid
|
|
// __attribute__ ((format(__printf__, 3, 4)))
|
|
// or by refining our printf override to use a varadic macro
|
|
// (which then wouldn't be portable, though).
|
|
// Anyway, for now we just disable the printf override globally
|
|
// for the Android port
|
|
#define FORBIDDEN_SYMBOL_EXCEPTION_printf
|
|
|
|
#include "backends/platform/android/android.h"
|
|
#include "backends/platform/android/touchcontrols.h"
|
|
|
|
TouchControls::TouchControls() :
|
|
_drawer(nullptr),
|
|
_screen_width(0),
|
|
_screen_height(0) {
|
|
}
|
|
|
|
TouchControls::Function TouchControls::getFunction(int x, int y) {
|
|
if (_screen_width == 0) {
|
|
// Avoid divide by 0 error
|
|
return kFunctionNone;
|
|
}
|
|
|
|
float xPercent = float(x) / _screen_width;
|
|
|
|
if (xPercent < 0.3) {
|
|
return kFunctionJoystick;
|
|
} else if (xPercent < 0.8) {
|
|
return kFunctionCenter;
|
|
} else {
|
|
return kFunctionRight;
|
|
}
|
|
}
|
|
|
|
void TouchControls::touchToJoystickState(int dX, int dY, FunctionState &state) {
|
|
int sqNorm = dX * dX + dY * dY;
|
|
if (sqNorm < 50 * 50) {
|
|
return;
|
|
}
|
|
|
|
if (dY > abs(dX)) {
|
|
state.main = Common::JOYSTICK_BUTTON_DPAD_DOWN;
|
|
state.clip = Common::Rect(256, 0, 384, 128);
|
|
} else if (dX > abs(dY)) {
|
|
state.main = Common::JOYSTICK_BUTTON_DPAD_RIGHT;
|
|
state.clip = Common::Rect(128, 0, 256, 128);
|
|
} else if (-dY > abs(dX)) {
|
|
state.main = Common::JOYSTICK_BUTTON_DPAD_UP;
|
|
state.clip = Common::Rect(0, 0, 128, 128);
|
|
} else if (-dX > abs(dY)) {
|
|
state.main = Common::JOYSTICK_BUTTON_DPAD_LEFT;
|
|
state.clip = Common::Rect(384, 0, 512, 128);
|
|
} else {
|
|
return;
|
|
}
|
|
|
|
if (sqNorm > 20000) {
|
|
state.modifier = Common::JOYSTICK_BUTTON_RIGHT_SHOULDER;
|
|
}
|
|
|
|
}
|
|
|
|
void TouchControls::touchToCenterState(int dX, int dY, FunctionState &state) {
|
|
int sqNorm = dX * dX + dY * dY;
|
|
if (sqNorm < 50 * 50) {
|
|
state.main = Common::JOYSTICK_BUTTON_GUIDE;
|
|
}
|
|
}
|
|
|
|
void TouchControls::touchToRightState(int dX, int dY, FunctionState &state) {
|
|
if (dX * dX + dY * dY < 100 * 100) {
|
|
return;
|
|
}
|
|
|
|
if (dX > abs(dY)) {
|
|
// right
|
|
state.main = Common::JOYSTICK_BUTTON_RIGHT_STICK;
|
|
state.clip = Common::Rect(512, 128, 640, 256);
|
|
return;
|
|
} else if (-dX > abs(dY)) {
|
|
// left
|
|
state.main = Common::JOYSTICK_BUTTON_LEFT_STICK;
|
|
state.clip = Common::Rect(512, 0, 640, 128);
|
|
return;
|
|
}
|
|
|
|
static Common::JoystickButton buttons[5] = {
|
|
Common::JOYSTICK_BUTTON_Y, Common::JOYSTICK_BUTTON_B, // top zone
|
|
Common::JOYSTICK_BUTTON_INVALID, // center
|
|
Common::JOYSTICK_BUTTON_A, Common::JOYSTICK_BUTTON_X // bottom zone
|
|
};
|
|
|
|
static int16 clips[5][4] = {
|
|
{ 0, 128, 128, 256 }, // y
|
|
{ 128, 128, 256, 256 }, // b
|
|
{ 0, 0, 0, 0 }, // center
|
|
{ 256, 128, 384, 256 }, // a
|
|
{ 384, 128, 512, 256 } // x
|
|
};
|
|
static const uint offset = (ARRAYSIZE(buttons) - 1) / 2;
|
|
|
|
int idx = (dY / 100) + offset;
|
|
if (idx < 0) {
|
|
idx = 0;
|
|
}
|
|
if (idx >= ARRAYSIZE(buttons)) {
|
|
idx = ARRAYSIZE(buttons) - 1;
|
|
}
|
|
state.main = buttons[idx];
|
|
state.clip = Common::Rect(clips[idx][0], clips[idx][1], clips[idx][2], clips[idx][3]);
|
|
}
|
|
|
|
TouchControls::FunctionBehavior TouchControls::functionBehaviors[TouchControls::kFunctionMax + 1] =
|
|
{
|
|
{ touchToJoystickState, false, .2f, .5f },
|
|
{ touchToCenterState, true, .5f, .5f },
|
|
{ touchToRightState, true, .8f, .5f }
|
|
};
|
|
|
|
void TouchControls::init(TouchControlsDrawer *drawer, int width, int height) {
|
|
_drawer = drawer;
|
|
_screen_width = width;
|
|
_screen_height = height;
|
|
}
|
|
|
|
TouchControls::Pointer *TouchControls::getPointerFromId(int ptrId, bool createNotFound) {
|
|
uint freeEntry = -1;
|
|
for (uint i = 0; i < kNumPointers; i++) {
|
|
Pointer &ptr = _pointers[i];
|
|
if (ptr.active && (ptr.id == ptrId)) {
|
|
return &ptr;
|
|
}
|
|
if (createNotFound && (freeEntry == -1) && !ptr.active) {
|
|
freeEntry = i;
|
|
}
|
|
}
|
|
// Too much fingers or not found
|
|
if (freeEntry == -1) {
|
|
return nullptr;
|
|
}
|
|
|
|
Pointer &ptr = _pointers[freeEntry];
|
|
ptr.reset();
|
|
ptr.id = ptrId;
|
|
|
|
return &ptr;
|
|
}
|
|
|
|
TouchControls::Pointer *TouchControls::findPointerFromFunction(Function function) {
|
|
for (uint i = 0; i < kNumPointers; i++) {
|
|
Pointer &ptr = _pointers[i];
|
|
if (ptr.active && (ptr.function == function)) {
|
|
return &ptr;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void TouchControls::draw() {
|
|
assert(_drawer != nullptr);
|
|
|
|
for (uint i = 0; i < kFunctionMax + 1; i++) {
|
|
FunctionState &state = _functionStates[i];
|
|
FunctionBehavior behavior = functionBehaviors[i];
|
|
|
|
if (state.clip.isEmpty()) {
|
|
continue;
|
|
}
|
|
_drawer->touchControlDraw(_screen_width * behavior.xRatio, _screen_height * behavior.yRatio,
|
|
64, 64, state.clip);
|
|
|
|
}
|
|
}
|
|
|
|
void TouchControls::update(Action action, int ptrId, int x, int y) {
|
|
if (action == JACTION_DOWN) {
|
|
Pointer *ptr = getPointerFromId(ptrId, true);
|
|
if (!ptr) {
|
|
return;
|
|
}
|
|
|
|
TouchControls::Function function = getFunction(x, y);
|
|
// ptrId is active no matter what
|
|
ptr->active = true;
|
|
|
|
if (function == kFunctionNone) {
|
|
// No function for this finger
|
|
return;
|
|
}
|
|
if (findPointerFromFunction(function)) {
|
|
// Some finger is already using this function: don't do anything
|
|
return;
|
|
}
|
|
|
|
ptr->startX = ptr->currentX = x;
|
|
ptr->startY = ptr->currentY = y;
|
|
ptr->function = function;
|
|
} else if (action == JACTION_MOVE) {
|
|
Pointer *ptr = getPointerFromId(ptrId, false);
|
|
if (!ptr || ptr->function == kFunctionNone) {
|
|
return;
|
|
}
|
|
|
|
FunctionBehavior &behavior = functionBehaviors[ptr->function];
|
|
|
|
ptr->currentX = x;
|
|
ptr->currentY = y;
|
|
|
|
int dX = x - ptr->startX;
|
|
int dY = y - ptr->startY;
|
|
|
|
FunctionState newState;
|
|
functionBehaviors[ptr->function].touchToState(dX, dY, newState);
|
|
|
|
FunctionState &oldState = _functionStates[ptr->function];
|
|
|
|
if (!behavior.pressOnRelease) {
|
|
// send key presses continuously
|
|
// first old remove main key, then update modifier, then press new main key
|
|
if (oldState.main != newState.main) {
|
|
buttonUp(oldState.main);
|
|
}
|
|
if (oldState.modifier != newState.modifier) {
|
|
buttonUp(oldState.modifier);
|
|
buttonDown(newState.modifier);
|
|
}
|
|
if (oldState.main != newState.main) {
|
|
buttonDown(newState.main);
|
|
}
|
|
}
|
|
oldState = newState;
|
|
if (_drawer) {
|
|
_drawer->touchControlNotifyChanged();
|
|
}
|
|
} else if (action == JACTION_UP) {
|
|
Pointer *ptr = getPointerFromId(ptrId, false);
|
|
if (!ptr || ptr->function == kFunctionNone) {
|
|
return;
|
|
}
|
|
|
|
FunctionBehavior &behavior = functionBehaviors[ptr->function];
|
|
FunctionState &functionState = _functionStates[ptr->function];
|
|
|
|
if (!behavior.pressOnRelease) {
|
|
// We sent key down continously: buttonUp everything
|
|
buttonUp(functionState.main);
|
|
buttonUp(functionState.modifier);
|
|
} else {
|
|
int dX = x - ptr->startX;
|
|
int dY = y - ptr->startY;
|
|
|
|
FunctionState newState;
|
|
functionBehaviors[ptr->function].touchToState(dX, dY, newState);
|
|
|
|
buttonDown(newState.modifier);
|
|
buttonPress(newState.main);
|
|
buttonUp(newState.modifier);
|
|
}
|
|
|
|
functionState.reset();
|
|
ptr->active = false;
|
|
if (_drawer) {
|
|
_drawer->touchControlNotifyChanged();
|
|
}
|
|
} else if (action == JACTION_CANCEL) {
|
|
for (uint i = 0; i < kNumPointers; i++) {
|
|
Pointer &ptr = _pointers[i];
|
|
ptr.reset();
|
|
}
|
|
|
|
for (uint i = 0; i < kFunctionMax + 1; i++) {
|
|
FunctionBehavior &behavior = functionBehaviors[i];
|
|
FunctionState &functionState = _functionStates[i];
|
|
|
|
if (!behavior.pressOnRelease) {
|
|
// We sent key down continously: buttonUp everything
|
|
buttonUp(functionState.main);
|
|
buttonUp(functionState.modifier);
|
|
}
|
|
|
|
functionState.reset();
|
|
}
|
|
if (_drawer) {
|
|
_drawer->touchControlNotifyChanged();
|
|
}
|
|
}
|
|
}
|
|
|
|
void TouchControls::buttonDown(Common::JoystickButton jb) {
|
|
if (jb == Common::JOYSTICK_BUTTON_INVALID) {
|
|
return;
|
|
}
|
|
|
|
Common::Event ev;
|
|
ev.type = Common::EVENT_JOYBUTTON_DOWN;
|
|
ev.joystick.button = jb;
|
|
dynamic_cast<OSystem_Android *>(g_system)->pushEvent(ev);
|
|
}
|
|
|
|
void TouchControls::buttonUp(Common::JoystickButton jb) {
|
|
if (jb == Common::JOYSTICK_BUTTON_INVALID) {
|
|
return;
|
|
}
|
|
|
|
Common::Event ev;
|
|
ev.type = Common::EVENT_JOYBUTTON_UP;
|
|
ev.joystick.button = jb;
|
|
dynamic_cast<OSystem_Android *>(g_system)->pushEvent(ev);
|
|
}
|
|
|
|
void TouchControls::buttonPress(Common::JoystickButton jb) {
|
|
if (jb == Common::JOYSTICK_BUTTON_INVALID) {
|
|
return;
|
|
}
|
|
|
|
Common::Event ev1, ev2;
|
|
ev1.type = Common::EVENT_JOYBUTTON_DOWN;
|
|
ev1.joystick.button = jb;
|
|
ev2.type = Common::EVENT_JOYBUTTON_UP;
|
|
ev2.joystick.button = jb;
|
|
dynamic_cast<OSystem_Android *>(g_system)->pushEvent(ev1, ev2);
|
|
}
|