/minild29

#include "Dark.h"
#include <cmath>

namespace Dark
{
  Player::Player() : Entity(),
		     FRICTION(150),
		     MAXSPEED(150.0f),
		     ACCELERATION(300)
  {
    sprite = new SpriteAnimation("player.png", FILTER_NONE, 64, 64);
    sprite->Add("idle", 0, 0, 0.35f);
    sprite->Play("idle");
    SetGraphic(sprite);
    scale = Vector2(0.25, 0.25);

    AddTag("player");

    footsteps = Audio::NewDeck(Assets::RequestAudio("footsteps.ogg"));
    footsteps->SetLoops(0); //loop indefinitely
    footsteps->SetVolume(0);
    footsteps->Play();
    
    SetCollider(new RectangleCollider(16, 16));

    dark = new Entity();
    dark->SetGraphic(new Sprite("dark.png", FILTER_NONE, 2048, 1536)); //alpha?
  }

  void Player::Update()
  {
    Entity::Update();

    if (Input::IsKeyMaskHeld("left"))
      {
	velocity.x -= ACCELERATION * Monocle::deltaTime;
      }
    if (Input::IsKeyMaskHeld("right"))
      {
	velocity.x += ACCELERATION * Monocle::deltaTime;
      }
    if (Input::IsKeyMaskHeld("up"))
      {
	velocity.y -= ACCELERATION * Monocle::deltaTime;
      }
    if (Input::IsKeyMaskHeld("down"))
      {
	velocity.y += ACCELERATION * Monocle::deltaTime;
      }
    
    // velocity will approach 0 in steps of FRICTION * dt
    velocity.x = APPROACH(velocity.x, 0, FRICTION * Monocle::deltaTime);
    velocity.y = APPROACH(velocity.y, 0, FRICTION * Monocle::deltaTime);

    if (velocity.GetSquaredMagnitude() > pow(MAXSPEED, 2))
      velocity = velocity.GetNormalized() * MAXSPEED;

    bool xcol = false;
    bool ycol = false;

    position.x += velocity.x * Monocle::deltaTime;
    while (Collide("Solid"))
      {
	xcol = true;
	if (velocity.x == 0) { break; }
	//printf("collision1\n");
	position.x -= SIGN(velocity.x, 0.1);
      }
    if (xcol) {velocity.x = 0;}

    position.y += velocity.y * Monocle::deltaTime;
    while (Collide("Solid"))
      {
	ycol = true;
	if (velocity.y == 0) { break; }
	//printf("collision2\n");
	position.y -= SIGN(velocity.y, 0.1);
      }
    if (ycol) {velocity.y = 0;}
    
    float magnitude = velocity.GetMagnitude();

    footsteps->SetVolume(magnitude / MAXSPEED);

    // How far away can they hear your footsteps?
    // The circle is diameter 300 at MAXSPEED, 32 (2x your size) at 0 speed
    noisiness = ((magnitude / MAXSPEED *(300-32)) + 32) /2;

    dark->position = position;

    //Scene::GetCamera()->position = position;
  }

  Creature::Creature() : Entity(),
			 FRICTION(800),
			 MAXSPEED(80.0f),
			 ACCELERATION(1200)			 
  {
    sprite = new SpriteAnimation("creature.png", FILTER_NONE, 64, 64);
    sprite->Add("idle", 0, 0, 0.35f);
    sprite->Add("move", 1, 2, 4.0f);
    sprite->Play("idle");
    SetGraphic(sprite);
    scale = Vector2(0.25, 0.25);

    AddTag("creature");
    SetCollider(new RectangleCollider(16, 16));

    skitter1 = Audio::NewDeck(Assets::RequestAudio("skitter1.ogg"));
    skitter1->SetLoops(0); //loop indefinitely

    velocity = Vector2::Random() * MAXSPEED;

    //set aiTime to random so creatures tick at different times
    aiTime= (float(rand()) / float(RAND_MAX)) * 1.0f;
  }

  void Creature::Update()
  {
    Entity::Update();

    if (state == "idle" || state == "wander") 
      {
	aiTime += Monocle::deltaTime;
	if (aiTime > 1.0f)
	  {
	    switch (rand() % 3)
	      {
	      case 0: // idle
		//printf("idle\n");
		direction = Vector2::zero;
		state = "idle";
		break;
	      case 1: // move
		if (state != "wander") {
		  //printf("wander\n");
		  direction = Vector2::Random();
		  state = "wander";
		  break;
		}
	      }
	    
	    aiTime = 0.0f;
	  }
	
	Player *player = ((DarkScene *)scene)->player;
	if ( (player->position - position).GetSquaredMagnitude() < 
	     pow(player->noisiness, 2) )
	  {
	    state = "alert";
	    // TODO: Play startled noise
	    direction = Vector2::zero;
	    // TODO: Play pulse animation (yellow?)
	    aiTime = 0.0f; // diff variable?  stateTime?
	  }
      } // if idle or wander
    else if (state == "alert")
      {
	aiTime += Monocle::deltaTime;
	
	// if we've been listening past the grace period and hear
	// something, switch state again

	// if we've been listening a long time, switch back to idle
      }

    velocity += direction * ACCELERATION * Monocle::deltaTime;
    
    velocity.x = APPROACH(velocity.x, 0, FRICTION * Monocle::deltaTime);
    velocity.y = APPROACH(velocity.y, 0, FRICTION * Monocle::deltaTime);

    if (velocity.GetSquaredMagnitude() > pow(MAXSPEED, 2))
      velocity = velocity.GetNormalized() * MAXSPEED;

    bool xcol = false;
    bool ycol = false;

    position.x += velocity.x * Monocle::deltaTime;
    while (Collide("Solid"))
      {
	xcol = true;
	if (velocity.x == 0) { break; }
	//printf("collision1\n");
	position.x -= SIGN(velocity.x, 0.1);
      }
    if (xcol) {velocity.x = 0;}

    position.y += velocity.y * Monocle::deltaTime;
    while (Collide("Solid"))
      {
	ycol = true;
	if (velocity.y == 0) { break; }
	//printf("collision2\n");
	position.y -= SIGN(velocity.y, 0.1);
      }
    if (ycol) {velocity.y = 0;}

    if (velocity.GetSquaredMagnitude() > 20)
      {
	Vector2 distance = ((DarkScene *)scene)->player->position - position;
	// at distance 0, vol should be 1.0.  at 800, it should be 0.
	float vol = (distance.GetMagnitude() / -800.0f) + 1.0f;
	skitter1->SetVolume(vol);
	skitter1->Play();
	sprite->Play("move");
      }
    else
      {
	skitter1->Pause(); //Stop()?
	sprite->Play("idle");
      }
  }

  // Scene

  DarkScene::DarkScene() : Scene()
  {
  }
  
  void DarkScene::Begin()
  {
    Scene::Begin();

    Graphics::Set2D(1024, 768);

    Text *inst2 = new Text("Press ESC to quit");
    inst2->position = Vector2(-492, -354); // 20px h, 30px v from U-L corner
    Add(inst2);

    Input::DefineMaskKey("left", KEY_LEFT);
    Input::DefineMaskKey("right", KEY_RIGHT);
    Input::DefineMaskKey("up", KEY_UP);
    Input::DefineMaskKey("down", KEY_DOWN);

    Input::DefineMaskKey("up", KEY_W);
    Input::DefineMaskKey("left", KEY_A);
    Input::DefineMaskKey("down", KEY_S);
    Input::DefineMaskKey("right", KEY_D);

    // level editor
    Add( levelEditor = new LevelEditor() );
    levelEditor->Disable();

    // load level from files
    Level::LoadProject("project.xml");
    Level::Load("level.xml", this);

    std::list<Entity*> *walls = GetAllTag("wall");
    for (std::list<Entity*>::iterator i = walls->begin(); i != walls->end(); ++i)
      {
        Entity *e = (*i);
        Vector2 s = e->scale;
        e->SetCollider(new RectangleCollider(s.x * 64, s.y * 64));
      }
   
    player = new Player();
    player->position = Graphics::GetScreenCenter();
    Add(player);
    Add(player->dark);

    Creature *creature = new Creature;
    creature->position = Graphics::GetScreenCenter();
    Add(creature);

    Creature *creature2 = new Creature;
    creature2->position = Graphics::GetScreenCenter();
    Add(creature2);

    Graphics::SetBackgroundColor(Color::green * 0.2f);

  }

  void DarkScene::Update()
  {
    Scene::Update();

    if (Input::IsKeyPressed(KEY_ESCAPE))
      Game::Quit();

    if (isPaused)
      {
	if (Input::IsKeyPressed(KEY_S) && Input::IsKeyHeld(KEY_LCTRL))
	  Level::Save();

	if (Input::IsKeyPressed(KEY_A))
	  Scene::GetCamera()->position.x -= 600;

	if (Input::IsKeyPressed(KEY_D))
	  Scene::GetCamera()->position.x += 600;
      }

    if (Input::IsKeyPressed(KEY_TAB))
      {
        // if we're not doing anything in the levelEditor...
        if (levelEditor->GetState() == FTES_NONE)
          {
            isPaused = !isPaused;
            
            if (isPaused) {
	      player->dark->isVisible = false;
	      levelEditor->Enable();
	    } else {
	      levelEditor->Disable();
	      player->dark->isVisible = true;
	    }
          }
      }

  }// DarkScene::Update

  Text::Text(const std::string& text, FontAsset* font)
    : Entity(), text(text)
  {
    if (font == NULL)
      this->font = Assets::RequestFont("LiberationSans-Regular.ttf", 18.0f);
    else
      this->font = font;

    SetLayer(-2);
  }

  void Text::Render()
  {
    Graphics::PushMatrix();

    // place text directly relative to camera
    Graphics::Translate(scene->GetCamera()->position + position);

    Graphics::SetBlend(BLEND_ALPHA);
    Graphics::SetColor(Color::white);
    Graphics::BindFont(font);
    
    Graphics::RenderText(*font, text, 0, 0);
    Graphics::PopMatrix();
  }

}