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Diffstat (limited to 'Source/UserInput/joystick.cpp')
| -rw-r--r-- | Source/UserInput/joystick.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/Source/UserInput/joystick.cpp b/Source/UserInput/joystick.cpp new file mode 100644 index 00000000..b6815b4f --- /dev/null +++ b/Source/UserInput/joystick.cpp @@ -0,0 +1,163 @@ +//----------------------------------------------------------------------------- +// Name: joystick.cpp +// Developer: Wolfire Games LLC +// Description: +// License: Read below +//----------------------------------------------------------------------------- +// +// Copyright 2022 Wolfire Games LLC +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// +//----------------------------------------------------------------------------- +#include "joystick.h" + +#include <Logging/logdata.h> + +#include <sstream> +#include <map> +#include <algorithm> +#include <cstdlib> +#include <cmath> + +Joystick::Joystick(float look_sensitivity) : + look_sensitivity_(look_sensitivity), + deadzone(0.1f), + button_input_buffer_count(0) +{ +} + +bool Joystick::HandleInputChange( ControllerInput::Input input, float val, uint32_t sequence_id ) { + float depth = val; + std::ostringstream oss; + switch(input) { + case ControllerInput::L_STICK_XN: + case ControllerInput::L_STICK_XP: + case ControllerInput::L_STICK_YN: + case ControllerInput::L_STICK_YP: + case ControllerInput::R_STICK_XN: + case ControllerInput::R_STICK_XP: + case ControllerInput::R_STICK_YN: + case ControllerInput::R_STICK_YP: + case ControllerInput::L_TRIGGER: + case ControllerInput::R_TRIGGER: + depth = NormalizeJoystick(std::fabs(val)); + break; + default: + break; + } + + bool ret_val = false; + if(depth > 0.0f) { + AddInputBufferItem(input, depth, sequence_id); + ret_val = true; + } + + std::pair<BindingMap::iterator, BindingMap::iterator> iter_pair = binding_.equal_range(input); + if(iter_pair.first != binding_.end()) { + for(BindingMap::iterator iter = iter_pair.first; iter != iter_pair.second; ++iter) { + SetButtonDown(iter->second, depth); + } + } + + return ret_val; +} + +void Joystick::ProcessBinding( ControllerInput::Input input, const std::string command) { + binding_.insert(std::pair<ControllerInput::Input, std::string>(input, command)); +} + +float Joystick::GetButtonDown( const std::string &name ) const { + ButtonMap::const_iterator iter(buttons_down_.find(name)); + if(iter != buttons_down_.end()){ + return iter->second; + } else { + return false; + } +} + +void Joystick::SetButtonDown( const std::string &name, float depth ) { + ButtonMap::iterator iter(buttons_down_.find(name)); + if(iter != buttons_down_.end()){ + iter->second = depth; + } else { + buttons_down_.insert(std::pair<std::string, bool>(name, depth)); + } +} + +void Joystick::ClearBinding() { + binding_.clear(); +} + +void Joystick::AddInputBufferItem(ControllerInput::Input input, float depth, uint32_t sequence_id) +{ + if( button_input_buffer_count >= button_input_buffer_size ) { + for( unsigned i = 1; i < button_input_buffer_count; i++ ) { + button_input_buffer[i-1] = button_input_buffer[i]; + } + button_input_buffer_count--; + } + + button_input_buffer[button_input_buffer_count].s_id = sequence_id; + button_input_buffer[button_input_buffer_count].input = input; + button_input_buffer[button_input_buffer_count].depth = depth; + button_input_buffer_count++; +} + +std::vector<Joystick::JoystickPress> Joystick::GetJoystickInputs() +{ + std::vector<Joystick::JoystickPress> presses; + presses.resize(button_input_buffer_count); + for( unsigned i = 0; i < button_input_buffer_count; i++ ) { + presses[i] = button_input_buffer[i]; + } + return presses; +} + +float Joystick::NormalizeJoystick(float value) { + // Do not let kDeadzone become 32767.0f, or divide by 0 will occur + const float kDeadzone = std::min(32767.0f * deadzone, 32000.0f); // Not actually a constant, but sort of + // Deadzone + if(value < kDeadzone && value > -kDeadzone) { + return 0; + } + // Subtract deadzone from value and divisor + value -= kDeadzone; + float axis = 0.0f; + axis = pow(value / (32767.0f - kDeadzone), 2.0f); + // Clamp each axis to {-1,1} + if (axis < -1.0f) { + axis = -1.0f; + } + if (axis > 1.0f) { + axis = 1.0f; + } + return axis; +} + +const float KeyState::kDepthThreshold = 0.5f; + +KeyState::KeyState() + : count(0) + , depth_count(0) + , depth(0) +{ } + +bool KeyState::operator!=(const KeyState & other) const { + return count != other.count || depth != other.depth || depth != other.depth_count; +} + +PlayerInput::PlayerInput() : + enabled(true), + remote_controlled(false) +{ } |