cube-game-plus-plus/client/Keys.cpp

#include <GLFW/glfw3.h>

#include "client/Keys.h"

bool Keys::Key::isDown() const
{
    return down;
}

bool Keys::Key::isReleased() const
{
    return shouldRelease;
}

u32 Keys::Key::getDownTime() const
{
    return downTime;
}

std::ostream& operator <<(std::ostream& os, const Keys::Key& k)
{
    os << "Key(down: " << k.isDown() << ", release: " << k.isReleased() << 
            ", time: " << k.getDownTime() << ")"; 
    return os;
}

Keys::Keys() : left(keys[0]), right(keys[1]), up(keys[2]), down(keys[3])
{
    keys[0].glfwKey = GLFW_KEY_A;
    keys[1].glfwKey = GLFW_KEY_D;
    keys[2].glfwKey = GLFW_KEY_W;
    keys[3].glfwKey = GLFW_KEY_S;
}

void Keys::release(int key)
{
    for(Key& k : keys)
    {
        if(k.glfwKey == key)
        {
            k.shouldRelease = true;
        }
    }
}

void Keys::press(int key)
{
    for(Key& k : keys)
    {
        if(k.glfwKey == key)
        {
            k.down = true;
            k.shouldRelease = false;
        }
    }
}

void Keys::tick()
{
    for(Key& k : keys)
    {
        k.downTime += k.down;
        k.down = k.down && !k.shouldRelease;
        k.downTime *= !k.shouldRelease;
        k.shouldRelease = false;
    }
}