#include "player.h"

Player::Player(const Vector3f& position, float rotX, float rotY) : m_position(position), m_rotX(rotX), m_rotY(rotY) { }

void Player::TurnLeftRight(float value) {
	m_rotX += value;
	if (m_rotX > 45) m_rotX = 45;
	else if (m_rotX < -45) m_rotX = -45;
}

void Player::TurnTopBottom(float value) {
	 m_rotY += value;
}

void Player::Move(bool front, bool back, bool left, bool right, bool jump, float elapsedTime) {
	float xrotrad, yrotrad;

	if (m_accjmp == 0 && jump && !jumped) {
		m_accjmp = 0.3;
		jumped = true;
	}
	else if (m_position.y > -0.2f && m_accjmp != 0)
		if (m_accjmp > 0.1f) {
			if (jump) {
				m_accjmp *= 0.95 - m_accjmp * elapsedTime;
				m_accjmp -= elapsedTime * 1.1;
			}
			else {
				m_accjmp *= 0.75 - m_accjmp * elapsedTime;
				m_accjmp -= elapsedTime * 1.1;
			}
		}
		else {
			if (jump) m_accjmp -= elapsedTime * 0.7;
			else m_accjmp -= elapsedTime * 0.9;
		}
	else m_accjmp = 0;
	
	if (!jump) jumped = false; // Bloque les sauts à répétition en tenant le bouton de saut.

	if (m_position.y < 0) { // Suivi de mouvement pour l'atterrissage.
		m_position.y += elapsedTime * 5;
		if (m_position.y > 0.f) m_position.y = 0;
	}
	
	m_position.y += m_accjmp;

	if (front) {
		if (m_accWS < 10) m_accWS += elapsedTime * 30; else m_accWS = 10;
		yrotrad = (m_rotY / 180 * 3.141592654f);
		xrotrad = (m_rotX / 180 * 3.141592654f);
		m_position.x += float(sin(yrotrad)) * elapsedTime * m_accWS;
		m_position.z += float(-cos(yrotrad)) * elapsedTime * m_accWS;
		// m_position.y += float(-sin(xrotrad)) * elapsedTime * 20; // à remettre pour implémenter une fonction de vol.
	}
	else if (back) { 
		if (m_accWS > -10) m_accWS -= elapsedTime * 30; else m_accWS = -10;
		yrotrad = (m_rotY / 180 * 3.141592654f);
		xrotrad = (m_rotX / 180 * 3.141592654f);
		m_position.x += float(-sin(yrotrad)) * elapsedTime * -m_accWS;
		m_position.z += float(cos(yrotrad)) * elapsedTime * -m_accWS;
		// m_position.y += float(sin(xrotrad)) * elapsedTime * 20; // à remettre pour implémenter une fonction de vol.
	}
	else if (m_accWS != 0) {
		m_accWS = m_accWS > 0 ? m_accWS - elapsedTime * 60 : m_accWS + elapsedTime * 60;
		yrotrad = (m_rotY / 180 * 3.141592654f);
		xrotrad = (m_rotX / 180 * 3.141592654f);
		m_position.x += float(sin(yrotrad)) * elapsedTime * m_accWS;
		m_position.z += float(-cos(yrotrad)) * elapsedTime * m_accWS;
		if (m_accWS < 1 && m_accWS > -1) m_accWS = 0;
	}

	if (left) { 
		if (m_accAD < 10) m_accAD += elapsedTime * 30; else m_accAD = 10;
		yrotrad = (m_rotY / 180 * 3.141592654f);
		m_position.x += float(-cos(yrotrad)) * elapsedTime * m_accAD;
		m_position.z += float(-sin(yrotrad)) * elapsedTime * m_accAD;
	}
	else if (right) {
		if (m_accAD > -10) m_accAD -= elapsedTime * 30; else m_accAD = -10;
		yrotrad = (m_rotY / 180 * 3.141592654f);
		m_position.x += float(cos(yrotrad)) * elapsedTime * -m_accAD;
		m_position.z += float(sin(yrotrad)) * elapsedTime * -m_accAD;
	}
	else if (m_accAD != 0) {
		m_accAD = m_accAD > 0 ? m_accAD - elapsedTime * 60 : m_accAD + elapsedTime * 60;
		yrotrad = (m_rotY / 180 * 3.141592654f);
		m_position.x += float(-cos(yrotrad)) * elapsedTime * m_accAD;
		m_position.z += float(-sin(yrotrad)) * elapsedTime * m_accAD;
		if (m_accAD < 1 && m_accAD > -1) m_accAD = 0;
	}

	// Gestion de si le personnage va en diagonale pour qu'il n'aille pas plus vite que s'il allait en ligne droite: SQRT(10^2+10^2) = ~12.
	if ((m_accWS >= 0? m_accWS: -m_accWS + m_accAD >= 0 ? m_accAD : -m_accAD) > 12) {
		m_accWS *= 0.9f;
		m_accAD *= 0.9f;
	}
}

void Player::ApplyTransformation(Transformation& transformation, bool rel) const {
	transformation.ApplyRotation(-m_rotX, 1, 0, 0);
	transformation.ApplyRotation(-m_rotY, 0, 1, 0);
	if (rel) transformation.ApplyTranslation(-m_position);
}