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minetest/src/gui/touchscreengui.cpp
Muhammad Rifqi Priyo Susanto 40a45b8c99
Virtual joystick: Use s32 when using m_screensize as a subtrahend (#12814) 
If still uses u32, m_screensize will yield a big value (underflow) when used as a subtrahend.
ETIE_MOVED is allowed to be run if joystick's ID is available and virtual joystick is fixed.
Add .0f for some float values.
2022-11-26 09:16:14 -05:00

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/*
Copyright (C) 2014 sapier
Copyright (C) 2018 srifqi, Muhammad Rifqi Priyo Susanto
<muhammadrifqipriyosusanto@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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.
*/
#include "touchscreengui.h"
#include "irrlichttypes.h"
#include "irr_v2d.h"
#include "log.h"
#include "client/keycode.h"
#include "settings.h"
#include "gettime.h"
#include "util/numeric.h"
#include "porting.h"
#include "client/guiscalingfilter.h"
#include "client/renderingengine.h"
#include <iostream>
#include <algorithm>
using namespace irr::core;
const char **button_imagenames = (const char *[]) {
"jump_btn.png",
"down.png",
"zoom.png",
"aux1_btn.png"
};
const char **joystick_imagenames = (const char *[]) {
"joystick_off.png",
"joystick_bg.png",
"joystick_center.png"
};
static irr::EKEY_CODE id2keycode(touch_gui_button_id id)
{
std::string key = "";
switch (id) {
case forward_id:
key = "forward";
break;
case left_id:
key = "left";
break;
case right_id:
key = "right";
break;
case backward_id:
key = "backward";
break;
case inventory_id:
key = "inventory";
break;
case drop_id:
key = "drop";
break;
case jump_id:
key = "jump";
break;
case crunch_id:
key = "sneak";
break;
case zoom_id:
key = "zoom";
break;
case aux1_id:
key = "aux1";
break;
case fly_id:
key = "freemove";
break;
case noclip_id:
key = "noclip";
break;
case fast_id:
key = "fastmove";
break;
case debug_id:
key = "toggle_debug";
break;
case toggle_chat_id:
key = "toggle_chat";
break;
case minimap_id:
key = "minimap";
break;
case chat_id:
key = "chat";
break;
case camera_id:
key = "camera_mode";
break;
case range_id:
key = "rangeselect";
break;
default:
break;
}
assert(!key.empty());
return keyname_to_keycode(g_settings->get("keymap_" + key).c_str());
}
TouchScreenGUI *g_touchscreengui;
static void load_button_texture(button_info *btn, const char *path,
const rect<s32> &button_rect, ISimpleTextureSource *tsrc, video::IVideoDriver *driver)
{
unsigned int tid;
video::ITexture *texture = guiScalingImageButton(driver,
tsrc->getTexture(path, &tid), button_rect.getWidth(),
button_rect.getHeight());
if (texture) {
btn->guibutton->setUseAlphaChannel(true);
if (g_settings->getBool("gui_scaling_filter")) {
rect<s32> txr_rect = rect<s32>(0, 0, button_rect.getWidth(), button_rect.getHeight());
btn->guibutton->setImage(texture, txr_rect);
btn->guibutton->setPressedImage(texture, txr_rect);
btn->guibutton->setScaleImage(false);
} else {
btn->guibutton->setImage(texture);
btn->guibutton->setPressedImage(texture);
btn->guibutton->setScaleImage(true);
}
btn->guibutton->setDrawBorder(false);
btn->guibutton->setText(L"");
}
}
AutoHideButtonBar::AutoHideButtonBar(IrrlichtDevice *device,
IEventReceiver *receiver) :
m_driver(device->getVideoDriver()),
m_guienv(device->getGUIEnvironment()),
m_receiver(receiver)
{
}
void AutoHideButtonBar::init(ISimpleTextureSource *tsrc,
const char *starter_img, int button_id, const v2s32 &UpperLeft,
const v2s32 &LowerRight, autohide_button_bar_dir dir, float timeout)
{
m_texturesource = tsrc;
m_upper_left = UpperLeft;
m_lower_right = LowerRight;
// init settings bar
irr::core::rect<int> current_button = rect<s32>(UpperLeft.X, UpperLeft.Y,
LowerRight.X, LowerRight.Y);
m_starter.guibutton = m_guienv->addButton(current_button, nullptr, button_id, L"", nullptr);
m_starter.guibutton->grab();
m_starter.repeatcounter = -1;
m_starter.keycode = KEY_OEM_8; // use invalid keycode as it's not relevant
m_starter.immediate_release = true;
m_starter.ids.clear();
load_button_texture(&m_starter, starter_img, current_button,
m_texturesource, m_driver);
m_dir = dir;
m_timeout_value = timeout;
m_initialized = true;
}
AutoHideButtonBar::~AutoHideButtonBar()
{
if (m_starter.guibutton) {
m_starter.guibutton->setVisible(false);
m_starter.guibutton->drop();
}
}
void AutoHideButtonBar::addButton(touch_gui_button_id button_id,
const wchar_t *caption, const char *btn_image)
{
if (!m_initialized) {
errorstream << "AutoHideButtonBar::addButton not yet initialized!"
<< std::endl;
return;
}
int button_size = 0;
if ((m_dir == AHBB_Dir_Top_Bottom) || (m_dir == AHBB_Dir_Bottom_Top))
button_size = m_lower_right.X - m_upper_left.X;
else
button_size = m_lower_right.Y - m_upper_left.Y;
irr::core::rect<int> current_button;
if ((m_dir == AHBB_Dir_Right_Left) || (m_dir == AHBB_Dir_Left_Right)) {
int x_start = 0;
int x_end = 0;
if (m_dir == AHBB_Dir_Left_Right) {
x_start = m_lower_right.X + (button_size * 1.25 * m_buttons.size())
+ (button_size * 0.25);
x_end = x_start + button_size;
} else {
x_end = m_upper_left.X - (button_size * 1.25 * m_buttons.size())
- (button_size * 0.25);
x_start = x_end - button_size;
}
current_button = rect<s32>(x_start, m_upper_left.Y, x_end,
m_lower_right.Y);
} else {
double y_start = 0;
double y_end = 0;
if (m_dir == AHBB_Dir_Top_Bottom) {
y_start = m_lower_right.X + (button_size * 1.25 * m_buttons.size())
+ (button_size * 0.25);
y_end = y_start + button_size;
} else {
y_end = m_upper_left.X - (button_size * 1.25 * m_buttons.size())
- (button_size * 0.25);
y_start = y_end - button_size;
}
current_button = rect<s32>(m_upper_left.X, y_start,
m_lower_right.Y, y_end);
}
auto *btn = new button_info();
btn->guibutton = m_guienv->addButton(current_button,
nullptr, button_id, caption, nullptr);
btn->guibutton->grab();
btn->guibutton->setVisible(false);
btn->guibutton->setEnabled(false);
btn->repeatcounter = -1;
btn->keycode = id2keycode(button_id);
btn->immediate_release = true;
btn->ids.clear();
load_button_texture(btn, btn_image, current_button, m_texturesource,
m_driver);
m_buttons.push_back(btn);
}
void AutoHideButtonBar::addToggleButton(touch_gui_button_id button_id,
const wchar_t *caption, const char *btn_image_1,
const char *btn_image_2)
{
addButton(button_id, caption, btn_image_1);
button_info *btn = m_buttons.back();
btn->togglable = 1;
btn->textures.push_back(btn_image_1);
btn->textures.push_back(btn_image_2);
}
bool AutoHideButtonBar::isButton(const SEvent &event)
{
IGUIElement *rootguielement = m_guienv->getRootGUIElement();
if (rootguielement == nullptr)
return false;
gui::IGUIElement *element = rootguielement->getElementFromPoint(
core::position2d<s32>(event.TouchInput.X, event.TouchInput.Y));
if (element == nullptr)
return false;
if (m_active) {
// check for all buttons in vector
auto iter = m_buttons.begin();
while (iter != m_buttons.end()) {
if ((*iter)->guibutton == element) {
auto *translated = new SEvent();
memset(translated, 0, sizeof(SEvent));
translated->EventType = irr::EET_KEY_INPUT_EVENT;
translated->KeyInput.Key = (*iter)->keycode;
translated->KeyInput.Control = false;
translated->KeyInput.Shift = false;
translated->KeyInput.Char = 0;
// add this event
translated->KeyInput.PressedDown = true;
m_receiver->OnEvent(*translated);
// remove this event
translated->KeyInput.PressedDown = false;
m_receiver->OnEvent(*translated);
delete translated;
(*iter)->ids.push_back(event.TouchInput.ID);
m_timeout = 0;
if ((*iter)->togglable == 1) {
(*iter)->togglable = 2;
load_button_texture(*iter, (*iter)->textures[1],
(*iter)->guibutton->getRelativePosition(),
m_texturesource, m_driver);
} else if ((*iter)->togglable == 2) {
(*iter)->togglable = 1;
load_button_texture(*iter, (*iter)->textures[0],
(*iter)->guibutton->getRelativePosition(),
m_texturesource, m_driver);
}
return true;
}
++iter;
}
} else {
// check for starter button only
if (element == m_starter.guibutton) {
m_starter.ids.push_back(event.TouchInput.ID);
m_starter.guibutton->setVisible(false);
m_starter.guibutton->setEnabled(false);
m_active = true;
m_timeout = 0;
auto iter = m_buttons.begin();
while (iter != m_buttons.end()) {
(*iter)->guibutton->setVisible(true);
(*iter)->guibutton->setEnabled(true);
++iter;
}
return true;
}
}
return false;
}
void AutoHideButtonBar::step(float dtime)
{
if (m_active) {
m_timeout += dtime;
if (m_timeout > m_timeout_value)
deactivate();
}
}
void AutoHideButtonBar::deactivate()
{
if (m_visible) {
m_starter.guibutton->setVisible(true);
m_starter.guibutton->setEnabled(true);
}
m_active = false;
auto iter = m_buttons.begin();
while (iter != m_buttons.end()) {
(*iter)->guibutton->setVisible(false);
(*iter)->guibutton->setEnabled(false);
++iter;
}
}
void AutoHideButtonBar::hide()
{
m_visible = false;
m_starter.guibutton->setVisible(false);
m_starter.guibutton->setEnabled(false);
auto iter = m_buttons.begin();
while (iter != m_buttons.end()) {
(*iter)->guibutton->setVisible(false);
(*iter)->guibutton->setEnabled(false);
++iter;
}
}
void AutoHideButtonBar::show()
{
m_visible = true;
if (m_active) {
auto iter = m_buttons.begin();
while (iter != m_buttons.end()) {
(*iter)->guibutton->setVisible(true);
(*iter)->guibutton->setEnabled(true);
++iter;
}
} else {
m_starter.guibutton->setVisible(true);
m_starter.guibutton->setEnabled(true);
}
}
TouchScreenGUI::TouchScreenGUI(IrrlichtDevice *device, IEventReceiver *receiver):
m_device(device),
m_guienv(device->getGUIEnvironment()),
m_receiver(receiver),
m_settingsbar(device, receiver),
m_rarecontrolsbar(device, receiver)
{
for (auto &button : m_buttons) {
button.guibutton = nullptr;
button.repeatcounter = -1;
button.repeatdelay = BUTTON_REPEAT_DELAY;
}
m_touchscreen_threshold = g_settings->getU16("touchscreen_threshold");
m_fixed_joystick = g_settings->getBool("fixed_virtual_joystick");
m_joystick_triggers_aux1 = g_settings->getBool("virtual_joystick_triggers_aux1");
m_screensize = m_device->getVideoDriver()->getScreenSize();
button_size = MYMIN(m_screensize.Y / 4.5f,
RenderingEngine::getDisplayDensity() *
g_settings->getFloat("hud_scaling") * 65.0f);
}
void TouchScreenGUI::initButton(touch_gui_button_id id, const rect<s32> &button_rect,
const std::wstring &caption, bool immediate_release, float repeat_delay)
{
button_info *btn = &m_buttons[id];
btn->guibutton = m_guienv->addButton(button_rect, nullptr, id, caption.c_str());
btn->guibutton->grab();
btn->repeatcounter = -1;
btn->repeatdelay = repeat_delay;
btn->keycode = id2keycode(id);
btn->immediate_release = immediate_release;
btn->ids.clear();
load_button_texture(btn, button_imagenames[id], button_rect,
m_texturesource, m_device->getVideoDriver());
}
button_info *TouchScreenGUI::initJoystickButton(touch_gui_button_id id,
const rect<s32> &button_rect, int texture_id, bool visible)
{
auto *btn = new button_info();
btn->guibutton = m_guienv->addButton(button_rect, nullptr, id, L"O");
btn->guibutton->setVisible(visible);
btn->guibutton->grab();
btn->ids.clear();
load_button_texture(btn, joystick_imagenames[texture_id],
button_rect, m_texturesource, m_device->getVideoDriver());
return btn;
}
void TouchScreenGUI::init(ISimpleTextureSource *tsrc)
{
assert(tsrc);
m_visible = true;
m_texturesource = tsrc;
/* Init joystick display "button"
* Joystick is placed on bottom left of screen.
*/
if (m_fixed_joystick) {
m_joystick_btn_off = initJoystickButton(joystick_off_id,
rect<s32>(button_size,
m_screensize.Y - button_size * 4,
button_size * 4,
m_screensize.Y - button_size), 0);
} else {
m_joystick_btn_off = initJoystickButton(joystick_off_id,
rect<s32>(button_size,
m_screensize.Y - button_size * 3,
button_size * 3,
m_screensize.Y - button_size), 0);
}
m_joystick_btn_bg = initJoystickButton(joystick_bg_id,
rect<s32>(button_size,
m_screensize.Y - button_size * 4,
button_size * 4,
m_screensize.Y - button_size),
1, false);
m_joystick_btn_center = initJoystickButton(joystick_center_id,
rect<s32>(0, 0, button_size, button_size), 2, false);
// init jump button
initButton(jump_id,
rect<s32>(m_screensize.X - (1.75 * button_size),
m_screensize.Y - button_size,
m_screensize.X - (0.25 * button_size),
m_screensize.Y),
L"x", false);
// init crunch button
initButton(crunch_id,
rect<s32>(m_screensize.X - (3.25 * button_size),
m_screensize.Y - button_size,
m_screensize.X - (1.75 * button_size),
m_screensize.Y),
L"H", false);
// init zoom button
initButton(zoom_id,
rect<s32>(m_screensize.X - (1.25 * button_size),
m_screensize.Y - (4 * button_size),
m_screensize.X - (0.25 * button_size),
m_screensize.Y - (3 * button_size)),
L"z", false);
// init aux1 button
if (!m_joystick_triggers_aux1)
initButton(aux1_id,
rect<s32>(m_screensize.X - (1.25 * button_size),
m_screensize.Y - (2.5 * button_size),
m_screensize.X - (0.25 * button_size),
m_screensize.Y - (1.5 * button_size)),
L"spc1", false);
m_settingsbar.init(m_texturesource, "gear_icon.png", settings_starter_id,
v2s32(m_screensize.X - (1.25 * button_size),
m_screensize.Y - ((SETTINGS_BAR_Y_OFFSET + 1.0) * button_size)
+ (0.5 * button_size)),
v2s32(m_screensize.X - (0.25 * button_size),
m_screensize.Y - (SETTINGS_BAR_Y_OFFSET * button_size)
+ (0.5 * button_size)),
AHBB_Dir_Right_Left, 3.0);
m_settingsbar.addButton(fly_id, L"fly", "fly_btn.png");
m_settingsbar.addButton(noclip_id, L"noclip", "noclip_btn.png");
m_settingsbar.addButton(fast_id, L"fast", "fast_btn.png");
m_settingsbar.addButton(debug_id, L"debug", "debug_btn.png");
m_settingsbar.addButton(camera_id, L"camera", "camera_btn.png");
m_settingsbar.addButton(range_id, L"rangeview", "rangeview_btn.png");
m_settingsbar.addButton(minimap_id, L"minimap", "minimap_btn.png");
// Chat is shown by default, so chat_hide_btn.png is shown first.
m_settingsbar.addToggleButton(toggle_chat_id, L"togglechat",
"chat_hide_btn.png", "chat_show_btn.png");
m_rarecontrolsbar.init(m_texturesource, "rare_controls.png",
rare_controls_starter_id,
v2s32(0.25 * button_size,
m_screensize.Y - ((RARE_CONTROLS_BAR_Y_OFFSET + 1.0) * button_size)
+ (0.5 * button_size)),
v2s32(0.75 * button_size,
m_screensize.Y - (RARE_CONTROLS_BAR_Y_OFFSET * button_size)
+ (0.5 * button_size)),
AHBB_Dir_Left_Right, 2.0);
m_rarecontrolsbar.addButton(chat_id, L"Chat", "chat_btn.png");
m_rarecontrolsbar.addButton(inventory_id, L"inv", "inventory_btn.png");
m_rarecontrolsbar.addButton(drop_id, L"drop", "drop_btn.png");
}
touch_gui_button_id TouchScreenGUI::getButtonID(s32 x, s32 y)
{
IGUIElement *rootguielement = m_guienv->getRootGUIElement();
if (rootguielement != nullptr) {
gui::IGUIElement *element =
rootguielement->getElementFromPoint(core::position2d<s32>(x, y));
if (element)
for (unsigned int i = 0; i < after_last_element_id; i++)
if (element == m_buttons[i].guibutton)
return (touch_gui_button_id) i;
}
return after_last_element_id;
}
touch_gui_button_id TouchScreenGUI::getButtonID(size_t eventID)
{
for (unsigned int i = 0; i < after_last_element_id; i++) {
button_info *btn = &m_buttons[i];
auto id = std::find(btn->ids.begin(), btn->ids.end(), eventID);
if (id != btn->ids.end())
return (touch_gui_button_id) i;
}
return after_last_element_id;
}
bool TouchScreenGUI::isHUDButton(const SEvent &event)
{
// check if hud item is pressed
for (auto &hud_rect : m_hud_rects) {
if (hud_rect.second.isPointInside(v2s32(event.TouchInput.X,
event.TouchInput.Y))) {
auto *translated = new SEvent();
memset(translated, 0, sizeof(SEvent));
translated->EventType = irr::EET_KEY_INPUT_EVENT;
translated->KeyInput.Key = (irr::EKEY_CODE) (KEY_KEY_1 + hud_rect.first);
translated->KeyInput.Control = false;
translated->KeyInput.Shift = false;
translated->KeyInput.PressedDown = true;
m_receiver->OnEvent(*translated);
m_hud_ids[event.TouchInput.ID] = translated->KeyInput.Key;
delete translated;
return true;
}
}
return false;
}
void TouchScreenGUI::handleButtonEvent(touch_gui_button_id button,
size_t eventID, bool action)
{
button_info *btn = &m_buttons[button];
auto *translated = new SEvent();
memset(translated, 0, sizeof(SEvent));
translated->EventType = irr::EET_KEY_INPUT_EVENT;
translated->KeyInput.Key = btn->keycode;
translated->KeyInput.Control = false;
translated->KeyInput.Shift = false;
translated->KeyInput.Char = 0;
// add this event
if (action) {
assert(std::find(btn->ids.begin(), btn->ids.end(), eventID) == btn->ids.end());
btn->ids.push_back(eventID);
if (btn->ids.size() > 1) return;
btn->repeatcounter = 0;
translated->KeyInput.PressedDown = true;
translated->KeyInput.Key = btn->keycode;
m_receiver->OnEvent(*translated);
}
// remove event
if ((!action) || (btn->immediate_release)) {
auto pos = std::find(btn->ids.begin(), btn->ids.end(), eventID);
// has to be in touch list
assert(pos != btn->ids.end());
btn->ids.erase(pos);
if (!btn->ids.empty())
return;
translated->KeyInput.PressedDown = false;
btn->repeatcounter = -1;
m_receiver->OnEvent(*translated);
}
delete translated;
}
void TouchScreenGUI::handleReleaseEvent(size_t evt_id)
{
touch_gui_button_id button = getButtonID(evt_id);
if (button != after_last_element_id) {
// handle button events
handleButtonEvent(button, evt_id, false);
} else if (m_has_move_id && evt_id == m_move_id) {
// handle the point used for moving view
m_has_move_id = false;
// if this pointer issued a mouse event issue symmetric release here
if (m_move_sent_as_mouse_event) {
auto *translated = new SEvent;
memset(translated, 0, sizeof(SEvent));
translated->EventType = EET_MOUSE_INPUT_EVENT;
translated->MouseInput.X = m_move_downlocation.X;
translated->MouseInput.Y = m_move_downlocation.Y;
translated->MouseInput.Shift = false;
translated->MouseInput.Control = false;
translated->MouseInput.ButtonStates = 0;
translated->MouseInput.Event = EMIE_LMOUSE_LEFT_UP;
if (m_draw_crosshair) {
translated->MouseInput.X = m_screensize.X / 2;
translated->MouseInput.Y = m_screensize.Y / 2;
}
m_receiver->OnEvent(*translated);
delete translated;
} else {
// do double tap detection
doubleTapDetection();
}
}
// handle joystick
else if (m_has_joystick_id && evt_id == m_joystick_id) {
m_has_joystick_id = false;
// reset joystick
for (unsigned int i = 0; i < 4; i++)
m_joystick_status[i] = false;
applyJoystickStatus();
m_joystick_btn_off->guibutton->setVisible(true);
m_joystick_btn_bg->guibutton->setVisible(false);
m_joystick_btn_center->guibutton->setVisible(false);
} else {
infostream
<< "TouchScreenGUI::translateEvent released unknown button: "
<< evt_id << std::endl;
}
for (auto iter = m_known_ids.begin();
iter != m_known_ids.end(); ++iter) {
if (iter->id == evt_id) {
m_known_ids.erase(iter);
break;
}
}
}
void TouchScreenGUI::translateEvent(const SEvent &event)
{
if (!m_visible) {
infostream
<< "TouchScreenGUI::translateEvent got event but not visible!"
<< std::endl;
return;
}
if (event.EventType != EET_TOUCH_INPUT_EVENT)
return;
if (event.TouchInput.Event == ETIE_PRESSED_DOWN) {
/*
* Add to own copy of event list...
* android would provide this information but Irrlicht guys don't
* wanna design an efficient interface
*/
id_status toadd{};
toadd.id = event.TouchInput.ID;
toadd.X = event.TouchInput.X;
toadd.Y = event.TouchInput.Y;
m_known_ids.push_back(toadd);
size_t eventID = event.TouchInput.ID;
touch_gui_button_id button =
getButtonID(event.TouchInput.X, event.TouchInput.Y);
// handle button events
if (button != after_last_element_id) {
handleButtonEvent(button, eventID, true);
m_settingsbar.deactivate();
m_rarecontrolsbar.deactivate();
} else if (isHUDButton(event)) {
m_settingsbar.deactivate();
m_rarecontrolsbar.deactivate();
// already handled in isHUDButton()
} else if (m_settingsbar.isButton(event)) {
m_rarecontrolsbar.deactivate();
// already handled in isSettingsBarButton()
} else if (m_rarecontrolsbar.isButton(event)) {
m_settingsbar.deactivate();
// already handled in isSettingsBarButton()
} else {
// handle non button events
m_settingsbar.deactivate();
m_rarecontrolsbar.deactivate();
s32 dxj = event.TouchInput.X - button_size * 5.0f / 2.0f;
s32 dyj = event.TouchInput.Y - (s32)m_screensize.Y + button_size * 5.0f / 2.0f;
/* Select joystick when left 1/3 of screen dragged or
* when joystick tapped (fixed joystick position)
*/
if ((m_fixed_joystick && dxj * dxj + dyj * dyj <= button_size * button_size * 1.5 * 1.5) ||
(!m_fixed_joystick && event.TouchInput.X < m_screensize.X / 3.0f)) {
// If we don't already have a starting point for joystick make this the one.
if (!m_has_joystick_id) {
m_has_joystick_id = true;
m_joystick_id = event.TouchInput.ID;
m_joystick_has_really_moved = false;
m_joystick_btn_off->guibutton->setVisible(false);
m_joystick_btn_bg->guibutton->setVisible(true);
m_joystick_btn_center->guibutton->setVisible(true);
// If it's a fixed joystick, don't move the joystick "button".
if (!m_fixed_joystick)
m_joystick_btn_bg->guibutton->setRelativePosition(v2s32(
event.TouchInput.X - button_size * 3.0f / 2.0f,
event.TouchInput.Y - button_size * 3.0f / 2.0f));
m_joystick_btn_center->guibutton->setRelativePosition(v2s32(
event.TouchInput.X - button_size / 2.0f,
event.TouchInput.Y - button_size / 2.0f));
}
} else {
// If we don't already have a moving point make this the moving one.
if (!m_has_move_id) {
m_has_move_id = true;
m_move_id = event.TouchInput.ID;
m_move_has_really_moved = false;
m_move_downtime = porting::getTimeMs();
m_move_downlocation = v2s32(event.TouchInput.X, event.TouchInput.Y);
m_move_sent_as_mouse_event = false;
if (m_draw_crosshair)
m_move_downlocation = v2s32(m_screensize.X / 2, m_screensize.Y / 2);
}
}
}
m_pointerpos[event.TouchInput.ID] = v2s32(event.TouchInput.X, event.TouchInput.Y);
}
else if (event.TouchInput.Event == ETIE_LEFT_UP) {
verbosestream
<< "Up event for pointerid: " << event.TouchInput.ID << std::endl;
handleReleaseEvent(event.TouchInput.ID);
} else {
assert(event.TouchInput.Event == ETIE_MOVED);
if (!(m_has_joystick_id && m_fixed_joystick) &&
m_pointerpos[event.TouchInput.ID] ==
v2s32(event.TouchInput.X, event.TouchInput.Y))
return;
if (m_has_move_id) {
if (event.TouchInput.ID == m_move_id &&
(!m_move_sent_as_mouse_event || m_draw_crosshair)) {
double distance = sqrt(
(m_pointerpos[event.TouchInput.ID].X - event.TouchInput.X) *
(m_pointerpos[event.TouchInput.ID].X - event.TouchInput.X) +
(m_pointerpos[event.TouchInput.ID].Y - event.TouchInput.Y) *
(m_pointerpos[event.TouchInput.ID].Y - event.TouchInput.Y));
if ((distance > m_touchscreen_threshold) ||
(m_move_has_really_moved)) {
m_move_has_really_moved = true;
s32 X = event.TouchInput.X;
s32 Y = event.TouchInput.Y;
// update camera_yaw and camera_pitch
s32 dx = X - m_pointerpos[event.TouchInput.ID].X;
s32 dy = Y - m_pointerpos[event.TouchInput.ID].Y;
m_pointerpos[event.TouchInput.ID] = v2s32(X, Y);
// adapt to similar behavior as pc screen
const double d = g_settings->getFloat("mouse_sensitivity", 0.001f, 10.0f) * 3.0f;
m_camera_yaw_change -= dx * d;
m_camera_pitch = MYMIN(MYMAX(m_camera_pitch + (dy * d), -180), 180);
// update shootline
// no need to update (X, Y) when using crosshair since the shootline is not used
m_shootline = m_device
->getSceneManager()
->getSceneCollisionManager()
->getRayFromScreenCoordinates(v2s32(X, Y));
}
} else if ((event.TouchInput.ID == m_move_id) &&
(m_move_sent_as_mouse_event)) {
m_shootline = m_device
->getSceneManager()
->getSceneCollisionManager()
->getRayFromScreenCoordinates(
v2s32(event.TouchInput.X, event.TouchInput.Y));
}
}
if (m_has_joystick_id && event.TouchInput.ID == m_joystick_id) {
s32 X = event.TouchInput.X;
s32 Y = event.TouchInput.Y;
s32 dx = X - m_pointerpos[event.TouchInput.ID].X;
s32 dy = Y - m_pointerpos[event.TouchInput.ID].Y;
if (m_fixed_joystick) {
dx = X - button_size * 5.0f / 2.0f;
dy = Y - (s32)m_screensize.Y + button_size * 5.0f / 2.0f;
}
double distance_sq = dx * dx + dy * dy;
s32 dxj = event.TouchInput.X - button_size * 5.0f / 2.0f;
s32 dyj = event.TouchInput.Y - (s32)m_screensize.Y + button_size * 5.0f / 2.0f;
bool inside_joystick = (dxj * dxj + dyj * dyj <= button_size * button_size * 1.5 * 1.5);
if (m_joystick_has_really_moved || inside_joystick ||
(!m_fixed_joystick &&
distance_sq > m_touchscreen_threshold * m_touchscreen_threshold)) {
m_joystick_has_really_moved = true;
double distance = sqrt(distance_sq);
// angle in degrees
double angle = acos(dx / distance) * 180 / M_PI;
if (dy < 0)
angle *= -1;
// rotate to make comparing easier
angle = fmod(angle + 180 + 22.5, 360);
// reset state before applying
for (bool & joystick_status : m_joystick_status)
joystick_status = false;
if (distance <= m_touchscreen_threshold) {
// do nothing
} else if (angle < 45)
m_joystick_status[j_left] = true;
else if (angle < 90) {
m_joystick_status[j_forward] = true;
m_joystick_status[j_left] = true;
} else if (angle < 135)
m_joystick_status[j_forward] = true;
else if (angle < 180) {
m_joystick_status[j_forward] = true;
m_joystick_status[j_right] = true;
} else if (angle < 225)
m_joystick_status[j_right] = true;
else if (angle < 270) {
m_joystick_status[j_backward] = true;
m_joystick_status[j_right] = true;
} else if (angle < 315)
m_joystick_status[j_backward] = true;
else if (angle <= 360) {
m_joystick_status[j_backward] = true;
m_joystick_status[j_left] = true;
}
if (distance > button_size) {
m_joystick_status[j_aux1] = true;
// move joystick "button"
s32 ndx = button_size * dx / distance - button_size / 2.0f;
s32 ndy = button_size * dy / distance - button_size / 2.0f;
if (m_fixed_joystick) {
m_joystick_btn_center->guibutton->setRelativePosition(v2s32(
button_size * 5.0f / 2.0f + ndx,
m_screensize.Y - button_size * 5.0f / 2.0f + ndy));
} else {
m_joystick_btn_center->guibutton->setRelativePosition(v2s32(
m_pointerpos[event.TouchInput.ID].X + ndx,
m_pointerpos[event.TouchInput.ID].Y + ndy));
}
} else {
m_joystick_btn_center->guibutton->setRelativePosition(
v2s32(X - button_size / 2, Y - button_size / 2));
}
}
}
if (!m_has_move_id && !m_has_joystick_id)
handleChangedButton(event);
}
}
void TouchScreenGUI::handleChangedButton(const SEvent &event)
{
for (unsigned int i = 0; i < after_last_element_id; i++) {
if (m_buttons[i].ids.empty())
continue;
for (auto iter = m_buttons[i].ids.begin();
iter != m_buttons[i].ids.end(); ++iter) {
if (event.TouchInput.ID == *iter) {
int current_button_id =
getButtonID(event.TouchInput.X, event.TouchInput.Y);
if (current_button_id == i)
continue;
// remove old button
handleButtonEvent((touch_gui_button_id) i, *iter, false);
if (current_button_id == after_last_element_id)
return;
handleButtonEvent((touch_gui_button_id) current_button_id, *iter, true);
return;
}
}
}
int current_button_id = getButtonID(event.TouchInput.X, event.TouchInput.Y);
if (current_button_id == after_last_element_id)
return;
button_info *btn = &m_buttons[current_button_id];
if (std::find(btn->ids.begin(), btn->ids.end(), event.TouchInput.ID)
== btn->ids.end())
handleButtonEvent((touch_gui_button_id) current_button_id,
event.TouchInput.ID, true);
}
bool TouchScreenGUI::doubleTapDetection()
{
m_key_events[0].down_time = m_key_events[1].down_time;
m_key_events[0].x = m_key_events[1].x;
m_key_events[0].y = m_key_events[1].y;
m_key_events[1].down_time = m_move_downtime;
m_key_events[1].x = m_move_downlocation.X;
m_key_events[1].y = m_move_downlocation.Y;
u64 delta = porting::getDeltaMs(m_key_events[0].down_time, porting::getTimeMs());
if (delta > 400)
return false;
double distance = sqrt(
(m_key_events[0].x - m_key_events[1].x) *
(m_key_events[0].x - m_key_events[1].x) +
(m_key_events[0].y - m_key_events[1].y) *
(m_key_events[0].y - m_key_events[1].y));
if (distance > (20 + m_touchscreen_threshold))
return false;
v2s32 mPos = v2s32(m_key_events[0].x, m_key_events[0].y);
if (m_draw_crosshair) {
mPos.X = m_screensize.X / 2;
mPos.Y = m_screensize.Y / 2;
}
auto *translated = new SEvent();
memset(translated, 0, sizeof(SEvent));
translated->EventType = EET_MOUSE_INPUT_EVENT;
translated->MouseInput.X = mPos.X;
translated->MouseInput.Y = mPos.Y;
translated->MouseInput.Shift = false;
translated->MouseInput.Control = false;
translated->MouseInput.ButtonStates = EMBSM_RIGHT;
// update shootline
m_shootline = m_device
->getSceneManager()
->getSceneCollisionManager()
->getRayFromScreenCoordinates(mPos);
translated->MouseInput.Event = EMIE_RMOUSE_PRESSED_DOWN;
verbosestream << "TouchScreenGUI::translateEvent right click press" << std::endl;
m_receiver->OnEvent(*translated);
translated->MouseInput.ButtonStates = 0;
translated->MouseInput.Event = EMIE_RMOUSE_LEFT_UP;
verbosestream << "TouchScreenGUI::translateEvent right click release" << std::endl;
m_receiver->OnEvent(*translated);
delete translated;
return true;
}
void TouchScreenGUI::applyJoystickStatus()
{
for (unsigned int i = 0; i < 5; i++) {
if (i == 4 && !m_joystick_triggers_aux1)
continue;
SEvent translated{};
translated.EventType = irr::EET_KEY_INPUT_EVENT;
translated.KeyInput.Key = id2keycode(m_joystick_names[i]);
translated.KeyInput.PressedDown = false;
m_receiver->OnEvent(translated);
if (m_joystick_status[i]) {
translated.KeyInput.PressedDown = true;
m_receiver->OnEvent(translated);
}
}
}
TouchScreenGUI::~TouchScreenGUI()
{
for (auto &button : m_buttons) {
if (button.guibutton) {
button.guibutton->drop();
button.guibutton = nullptr;
}
}
if (m_joystick_btn_off->guibutton) {
m_joystick_btn_off->guibutton->drop();
m_joystick_btn_off->guibutton = nullptr;
}
if (m_joystick_btn_bg->guibutton) {
m_joystick_btn_bg->guibutton->drop();
m_joystick_btn_bg->guibutton = nullptr;
}
if (m_joystick_btn_center->guibutton) {
m_joystick_btn_center->guibutton->drop();
m_joystick_btn_center->guibutton = nullptr;
}
}
void TouchScreenGUI::step(float dtime)
{
// simulate keyboard repeats
for (auto &button : m_buttons) {
if (!button.ids.empty()) {
button.repeatcounter += dtime;
// in case we're moving around digging does not happen
if (m_has_move_id)
m_move_has_really_moved = true;
if (button.repeatcounter < button.repeatdelay)
continue;
button.repeatcounter = 0;
SEvent translated;
memset(&translated, 0, sizeof(SEvent));
translated.EventType = irr::EET_KEY_INPUT_EVENT;
translated.KeyInput.Key = button.keycode;
translated.KeyInput.PressedDown = false;
m_receiver->OnEvent(translated);
translated.KeyInput.PressedDown = true;
m_receiver->OnEvent(translated);
}
}
// joystick
for (unsigned int i = 0; i < 4; i++) {
if (m_joystick_status[i]) {
applyJoystickStatus();
break;
}
}
// if a new placed pointer isn't moved for some time start digging
if (m_has_move_id &&
(!m_move_has_really_moved) &&
(!m_move_sent_as_mouse_event)) {
u64 delta = porting::getDeltaMs(m_move_downtime, porting::getTimeMs());
if (delta > MIN_DIG_TIME_MS) {
s32 mX = m_move_downlocation.X;
s32 mY = m_move_downlocation.Y;
if (m_draw_crosshair) {
mX = m_screensize.X / 2;
mY = m_screensize.Y / 2;
}
m_shootline = m_device
->getSceneManager()
->getSceneCollisionManager()
->getRayFromScreenCoordinates(
v2s32(mX, mY));
SEvent translated;
memset(&translated, 0, sizeof(SEvent));
translated.EventType = EET_MOUSE_INPUT_EVENT;
translated.MouseInput.X = mX;
translated.MouseInput.Y = mY;
translated.MouseInput.Shift = false;
translated.MouseInput.Control = false;
translated.MouseInput.ButtonStates = EMBSM_LEFT;
translated.MouseInput.Event = EMIE_LMOUSE_PRESSED_DOWN;
verbosestream << "TouchScreenGUI::step left click press" << std::endl;
m_receiver->OnEvent(translated);
m_move_sent_as_mouse_event = true;
}
}
m_settingsbar.step(dtime);
m_rarecontrolsbar.step(dtime);
}
void TouchScreenGUI::resetHud()
{
m_hud_rects.clear();
}
void TouchScreenGUI::registerHudItem(int index, const rect<s32> &rect)
{
m_hud_rects[index] = rect;
}
void TouchScreenGUI::Toggle(bool visible)
{
m_visible = visible;
for (auto &button : m_buttons) {
if (button.guibutton)
button.guibutton->setVisible(visible);
}
if (m_joystick_btn_off->guibutton)
m_joystick_btn_off->guibutton->setVisible(visible);
// clear all active buttons
if (!visible) {
while (!m_known_ids.empty())
handleReleaseEvent(m_known_ids.begin()->id);
m_settingsbar.hide();
m_rarecontrolsbar.hide();
} else {
m_settingsbar.show();
m_rarecontrolsbar.show();
}
}
void TouchScreenGUI::hide()
{
if (!m_visible)
return;
Toggle(false);
}
void TouchScreenGUI::show()
{
if (m_visible)
return;
Toggle(true);
}
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