package Engine;

import java.nio.DoubleBuffer;

import org.lwjgl.BufferUtils;
import org.lwjgl.glfw.GLFW;

public class IO {

    private long window;
    private boolean[] key = new boolean[GLFW.GLFW_KEY_LAST];
    private boolean[] mouse = new boolean[GLFW.GLFW_MOUSE_BUTTON_LAST];

    public IO(long window)
    {
        this.window = window;

        update();
    }

    public boolean isKeyDown(int key)
    {
        return GLFW.glfwGetKey(this.window, key) == 1;
    }

    public boolean isMouseDown(int mouse)
    {
        return GLFW.glfwGetMouseButton(window, mouse) == 1;
    }

    public boolean isKeyPress(int key)
    {
        return isKeyDown(key) && !this.key[key];
    }

    public boolean isKeyRelease(int key)
    {
        return !isKeyDown(key) && this.key[key];
    }

    public boolean isMoisePress(int mouse)
    {
        return isMouseDown(mouse) && !this.mouse[mouse];
    }

    public boolean isMouseRelease(int mouse)
    {
        return !isMouseDown(mouse) && this.mouse[mouse];
    }

    public double getMouseX()
    {
        DoubleBuffer buffer = BufferUtils.createDoubleBuffer(1);
        GLFW.glfwGetCursorPos(window, buffer, null);
        return buffer.get(0);
    }

    public double getMouseY()
    {
        DoubleBuffer buffer = BufferUtils.createDoubleBuffer(1);
        GLFW.glfwGetCursorPos(window, null, buffer);
        return buffer.get(0);
    }

    private void update()
    {
        for(int i = 0; i < GLFW.GLFW_KEY_LAST; i++)
        {
            key[i] = isKeyDown(i);
        }

        for(int i = 0; i < GLFW.GLFW_MOUSE_BUTTON_LAST; i++)
        {
            mouse[i] = isMouseDown(i);
        }
    }
}