#include "Game.h"
#include "rendering/Renderer.h"
#include "utils/StringBuffer.h"

float x = 0.0f;
float y = 0.0f;
float lastX = 0.0f;
float lastY = 0.0f;
float playerWidth = 80.0f;
float playerHeight = 80.0f;

float width = 800.0f;
float height = 480.0f;

float motionY = 0.0f;
bool onGround = false;

Game::Game(Controller& c, const Clock& fps, const Clock& tps) : controller(c), fps(fps), tps(tps) {
    c.mapKey(GLFW_KEY_A, Controller::A);
    c.mapKey(GLFW_KEY_S, Controller::B);
    c.mapKey(GLFW_KEY_X, Controller::X);
    c.mapKey(GLFW_KEY_Z, Controller::Y);
    c.mapKey(GLFW_KEY_Q, Controller::L);
    c.mapKey(GLFW_KEY_W, Controller::R);
    c.mapKey(GLFW_KEY_E, Controller::START);
    c.mapKey(GLFW_KEY_D, Controller::SELECT);
    c.mapKey(GLFW_KEY_LEFT, Controller::LEFT);
    c.mapKey(GLFW_KEY_RIGHT, Controller::RIGHT);
    c.mapKey(GLFW_KEY_UP, Controller::UP);
    c.mapKey(GLFW_KEY_DOWN, Controller::DOWN);
}

void Game::tick() {
    lastX = x;
    lastY = y;
    if(controller.isDown(Controller::LEFT)) {
        x -= 7;
    }
    if(controller.isDown(Controller::RIGHT)) {
        x += 7;
    }
    if(controller.isDown(Controller::A) && onGround) {
        motionY = -15.0f;
        onGround = false;
    }

    motionY += 0.5f;
    y += motionY;

    if(y > height - playerHeight) {
        y = height - playerHeight;
        motionY = 0.0f;
        onGround = true;
    }
    while(x > width) {
        x -= width + playerWidth;
        lastX -= width + playerWidth;
    }
    while(x < -playerWidth) {
        x += width + playerWidth;
        lastX += width + playerWidth;
    }
}

void Game::render(float lag, Renderer& renderer) const {
    renderer.translateTo(0.0f, 0.0f).update();
    renderer.drawRectangle(lastX + (x - lastX) * lag, lastY + (y - lastY) * lag, playerWidth, playerHeight, Color4(255, 0, 0, 255));
    renderer.translateTo(0.0f, 0.0f).update();
    StringBuffer<100> s;
    s.append("FPS: ").append(fps.getUpdatesPerSecond());
    float y = 0.0f;
    renderer.setStringSize(2);
    y = renderer.drawString(0.0f, y, s);
    for(int i = 0; i < controller.getButtonAmount(); i++) {
        s.clear().append(controller.getName(i)).append(": ").append(controller.getDownTime(i)).append(" ").append(controller.wasReleased(i));
        y = renderer.drawString(0.0f, y, s);
    }
}

bool Game::isRunning() const {
    return !controller.isDown(Controller::SELECT);
}