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/*
Minetest
Copyright (C) 2016 est31, <MTest31@outlook.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 "joystick_controller.h"
#include "irrlichttypes_extrabloated.h"
#include "keys.h"
#include "settings.h"
#include "gettime.h"
bool JoystickButtonCmb::isTriggered(const irr::SEvent::SJoystickEvent &ev) const
{
u32 buttons = ev.ButtonStates;
buttons &= filter_mask;
return buttons == compare_mask;
}
bool JoystickAxisCmb::isTriggered(const irr::SEvent::SJoystickEvent &ev) const
{
s16 ax_val = ev.Axis[axis_to_compare];
return (ax_val * direction < 0) && (thresh * direction > ax_val * direction);
}
// spares many characters
#define JLO_B_PB(A, B, C) jlo.button_keys.push_back(JoystickButtonCmb(A, B, C))
#define JLO_A_PB(A, B, C, D) jlo.axis_keys.push_back(JoystickAxisCmb(A, B, C, D))
static JoystickLayout create_default_layout()
{
JoystickLayout jlo;
jlo.axes_dead_border = 1024;
const JoystickAxisLayout axes[JA_COUNT] = {
{0, 1}, // JA_SIDEWARD_MOVE
{1, 1}, // JA_FORWARD_MOVE
{3, 1}, // JA_FRUSTUM_HORIZONTAL
{4, 1}, // JA_FRUSTUM_VERTICAL
};
memcpy(jlo.axes, axes, sizeof(jlo.axes));
u32 sb = 1 << 7; // START button mask
u32 fb = 1 << 3; // FOUR button mask
u32 bm = sb | fb; // Mask for Both Modifiers
// The back button means "ESC".
JLO_B_PB(KeyType::ESC, 1 << 6, 1 << 6);
// The start button counts as modifier as well as use key.
// JLO_B_PB(KeyType::USE, sb, sb));
// Accessible without start modifier button pressed
// regardless whether four is pressed or not
JLO_B_PB(KeyType::SNEAK, sb | 1 << 2, 1 << 2);
// Accessible without four modifier button pressed
// regardless whether start is pressed or not
JLO_B_PB(KeyType::MOUSE_L, fb | 1 << 4, 1 << 4);
JLO_B_PB(KeyType::MOUSE_R, fb | 1 << 5, 1 << 5);
// Accessible without any modifier pressed
JLO_B_PB(KeyType::JUMP, bm | 1 << 0, 1 << 0);
JLO_B_PB(KeyType::SPECIAL1, bm | 1 << 1, 1 << 1);
// Accessible with start button not pressed, but four pressed
// TODO find usage for button 0
JLO_B_PB(KeyType::DROP, bm | 1 << 1, fb | 1 << 1);
JLO_B_PB(KeyType::SCROLL_UP, bm | 1 << 4, fb | 1 << 4);
JLO_B_PB(KeyType::SCROLL_DOWN,bm | 1 << 5, fb | 1 << 5);
// Accessible with start button and four pressed
// TODO find usage for buttons 0, 1 and 4, 5
// Now about the buttons simulated by the axes
// Movement buttons, important for vessels
JLO_A_PB(KeyType::FORWARD, 1, 1, 1024);
JLO_A_PB(KeyType::BACKWARD, 1, -1, 1024);
JLO_A_PB(KeyType::LEFT, 0, 1, 1024);
JLO_A_PB(KeyType::RIGHT, 0, -1, 1024);
// Scroll buttons
JLO_A_PB(KeyType::SCROLL_UP, 2, -1, 1024);
JLO_A_PB(KeyType::SCROLL_DOWN, 5, -1, 1024);
return jlo;
}
static const JoystickLayout default_layout = create_default_layout();
JoystickController::JoystickController()
{
m_layout = &default_layout;
doubling_dtime = g_settings->getFloat("repeat_joystick_button_time");
for (size_t i = 0; i < KeyType::INTERNAL_ENUM_COUNT; i++) {
m_past_pressed_time[i] = 0;
}
clear();
}
bool JoystickController::handleEvent(const irr::SEvent::SJoystickEvent &ev)
{
m_internal_time = getTimeMs() / 1000.f;
std::bitset<KeyType::INTERNAL_ENUM_COUNT> keys_pressed;
// First generate a list of keys pressed
for (size_t i = 0; i < m_layout->button_keys.size(); i++) {
if (m_layout->button_keys[i].isTriggered(ev)) {
keys_pressed.set(m_layout->button_keys[i].key);
}
}
for (size_t i = 0; i < m_layout->axis_keys.size(); i++) {
if (m_layout->axis_keys[i].isTriggered(ev)) {
keys_pressed.set(m_layout->axis_keys[i].key);
}
}
// Then update the values
for (size_t i = 0; i < KeyType::INTERNAL_ENUM_COUNT; i++) {
if (keys_pressed[i]) {
if (!m_past_pressed_keys[i] &&
m_past_pressed_time[i] < m_internal_time - doubling_dtime) {
m_past_pressed_keys[i] = true;
m_past_pressed_time[i] = m_internal_time;
}
} else if (m_pressed_keys[i]) {
m_past_released_keys[i] = true;
}
m_pressed_keys[i] = keys_pressed[i];
}
for (size_t i = 0; i < JA_COUNT; i++) {
const JoystickAxisLayout &ax_la = m_layout->axes[i];
m_axes_vals[i] = ax_la.invert * ev.Axis[ax_la.axis_id];
}
return true;
}
void JoystickController::clear()
{
m_pressed_keys.reset();
m_past_pressed_keys.reset();
m_past_released_keys.reset();
memset(m_axes_vals, 0, sizeof(m_axes_vals));
}
s16 JoystickController::getAxisWithoutDead(JoystickAxis axis)
{
s16 v = m_axes_vals[axis];
if (((v > 0) && (v < m_layout->axes_dead_border)) ||
((v < 0) && (v > -m_layout->axes_dead_border)))
return 0;
return v;
}
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