package fight3D;

import javax.media.j3d.Appearance;
import javax.media.j3d.Material;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.TransparencyAttributes;
import javax.vecmath.Vector3d;

import com.sun.j3d.utils.geometry.Sphere;

import framework.animation.Animation3D;
import framework.audio.Sound3D;
import framework.gameMain.OvergroundActor;
import framework.model3D.Position3D;
import framework.model3D.Quaternion3D;
import framework.model3D.Universe;
import framework.physics.Velocity3D;

/**
 * ゲームに登場するプレイヤー
 * @author 新田直也
 *
 */
public class Player extends OvergroundActor {
	public Character character;
	private int hp;
	private int tp;
	private int gp;
	private Attackable normalAttack;
	private Attackable upperAttack;
	private Attackable jumpAttack;
	private int defeat = 0;
	private int defeated = 0;
	private int gpCounter;
	private TransformGroup guardPos;
	private TransformGroup guardScale;
	private Sphere guardSphere;

	private State stateAttack = new StateAttack();
	private State stateUpperAttack = new StateUpperAttack();
	private State stateJumpAttack = new StateJumpAttack();
	private State stateJump = new StateJump();
	private State stateRightMove = new StateRightMove();
	private State stateLeftMove = new StateLeftMove();
	private State stateGuard = new StateGuard();
	private State stateBend = new StateBend();
	private State stateFlinch = new StateFlinch();
	private State stateNormalRight = new StateNormalRight();
	private State stateNormalLeft = new StateNormalLeft();
	private State stateDamaged = new StateDamaged();

	public State state = stateNormalRight;
	private State lastMoveState = stateRightMove;

	public Player(Character m) {
		super(m);
		character = m;
		// 移動速度を設定する
		((StateRightMove)stateRightMove).setSpeed(character.getRunSpeed());
		((StateLeftMove)stateLeftMove).setSpeed(character.getRunSpeed());
		
		// ジャンプ力（上方向への初速度）を設定する
		((StateJump)stateJump).setSpeed(character.getJumpPower());		

		// 攻撃方法を設定しておく（通常攻撃、対空攻撃、ジャンプ攻撃）
		if (character.hasAttackingPart()) {
			// キャラクターが攻撃に使用するのは、体の一部。
			normalAttack = new AttackingPart(character.getAttackingPartName(), this, 
					character.getAttackTimeLag());
		} else {
			// キャラクターが攻撃に使用するのは、飛び道具。
			normalAttack = new Weapon(character.getWeaponModel(), this,
					character.getAttackTimeLag());
		}
		if (character.hasUpperAttackingPart()) {
			// キャラクターが攻撃に使用するのは、体の一部。
			upperAttack = new AttackingPart(character.getUpperAttackingPartName(), this, 
					character.getUpperAttackTimeLag());
		} else {
			// キャラクターが攻撃に使用するのは、飛び道具。
			upperAttack = new Weapon(character.getUpperWeaponModel(), this, 
					character.getUpperAttackTimeLag());
		}
		if (character.hasJumpAttackingPart()) {
			// キャラクターが攻撃に使用するのは、体の一部。
			jumpAttack = new AttackingPart(character.getJumpAttackingPartName(), this, 
					character.getJumpAttackTimeLag());
		} else {
			// キャラクターが攻撃に使用するのは、飛び道具。
			jumpAttack = new Weapon(character.getJumpWeaponModel(), this, 
					character.getJumpAttackTimeLag());
		}
	}

	// SceneGraphにぶら下げる
	public void placeTo(Universe universe) {
		universe.placeAsAnOcculuder(this);
		// 弾の表示の準備
		if (!character.hasAttackingPart()) {
			universe.place((Weapon) normalAttack);
		}
		if (!character.hasUpperAttackingPart()) {
			universe.place((Weapon) upperAttack);
		}
		if (!character.hasJumpAttackingPart()) {
			universe.place((Weapon) jumpAttack);
		}
		
		// ガード表示の準備
		guardSphere = new Sphere();
		Appearance ap = new Appearance();
		Material ma = new Material();
		ap.setMaterial(ma);
		TransparencyAttributes ta = new TransparencyAttributes(
				TransparencyAttributes.FASTEST, 0.5f);
		ap.setTransparencyAttributes(ta);
		guardSphere.setAppearance(ap);

		guardPos = new TransformGroup();
		guardPos.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
		guardPos.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
		guardScale = new TransformGroup();
		guardScale.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
		guardScale.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
		guardPos.addChild(guardScale);
		guardScale.addChild(guardSphere);
		universe.place(guardPos);
		setGuardInvisible();
	}

	public void onEndAnimation() {
		if (!state.isRepeatable()) {
			normal(true);
		}
	}

	public void onEndFall() {
		// 落ちている時は左右に歩くアニメーションをしないが、
		// 地面についた瞬間歩くアニメーションが始まる
		Animation3D a = character.getAnimation(mode, state);
		if (!animation.equals(a)) {
			// たとえば歩いている途中で、アニメーションの関係で一瞬だけ落下する場合がある。
			// そのような場合、着地するたびに歩くアニメーションをリセットしないように、アニメーションの種類が変わったときだけ
			// アニメーションを設定しなおすようにする。
			animation = a;
		}
	}

	/**
	 * 次の状態に変える
	 * @param nextState --- 次の状態
	 * @param forced --- 強制的に変更するかどうか
	 * @return
	 */
	boolean changeState(State nextState, boolean forced) {
		if (state.getClass() == nextState.getClass()) {
			// 状態の継続
			state.countUp();
			// 速度の変更
			Velocity3D nextVelocity = state.getVelocity(getVelocity(),
					mode);
			if (nextVelocity != null)
				body.apply(nextVelocity, false);
			return false;
		}
		boolean flag = state.canChange(nextState, mode);
		if (forced || flag) {
			// System.out.println("状態:" + s.getClass().getName() + this);
			// 状態の変更と初期化
			State prevState = state;
			state = nextState;
			state.init();
			// 速度の変更
			Velocity3D nextVelocity = state.getVelocity(getVelocity(), mode);
			if (nextVelocity != null)
				body.apply(nextVelocity, false);
			// アニメーションの設定
			animation = character.getAnimation(mode, state);
			// 効果音を鳴らす
			Sound3D sound = character.getSoundEffect(mode, state);
			if (sound != null) {
				sound.play();
			}
			
			if (prevState instanceof StateAttack 
					|| prevState instanceof StateUpperAttack 
					|| prevState instanceof StateJumpAttack) {
				endAttack();
			}

			if ((nextState instanceof StateRightMove) || (nextState instanceof StateLeftMove)) {
				// 現在の向いてる方向と、これから向く方向が違うならキャラクタを回転させる
				if (nextState.getClass() != lastMoveState.getClass()) {
					if (nextState instanceof StateRightMove) {
						Quaternion3D q = new Quaternion3D(0.0, 1.0, 0.0, 0);
						body.apply(q, false);
					} else if (nextState instanceof StateLeftMove) {
						Quaternion3D q = new Quaternion3D(0.0, 1.0, 0.0,
								Math.PI);
						body.apply(q, false);
					}
				}
				lastMoveState = nextState;
			}
		}
		return flag;
	}

	/**
	 * 通常状態に戻す
	 * @param forced true --- 強制的に戻す, false --- 戻せる場合だけ戻す
	 */
	void normal(boolean forced) {
		if (lastMoveState instanceof StateRightMove) {
			State s = stateNormalRight;
			changeState(s, forced);
		} else if (lastMoveState instanceof StateLeftMove) {
			State s = stateNormalLeft;
			changeState(s, forced);

		}
		setGuardInvisible();

	}

	/**
	 * 通常攻撃を開始する
	 * @return 攻撃に使う攻撃物
	 */
	public Attackable startNormalAttack() {
		Velocity3D weaponSpeed = new Velocity3D();
		// 通常攻撃
		State s = stateAttack;
		Attackable a = normalAttack;
		if (a.isMovable()) weaponSpeed = character.getWeaponSpeed();
		return startAttackSub(s, a, weaponSpeed);
	}
	
	/**
	 * 対空攻撃を開始する
	 * @return 攻撃に使う攻撃物
	 */
	public Attackable startUpperAttack() {
		Velocity3D weaponSpeed = new Velocity3D();
		State s = stateUpperAttack;
		Attackable a = upperAttack;
		if (a.isMovable()) weaponSpeed = character.getUpperWeaponSpeed();
		return startAttackSub(s, a, weaponSpeed);
	}

	/**
	 * ジャンプ攻撃を開始する
	 * @return 攻撃に使う攻撃物
	 */
	public Attackable startJumpAttack() {
		Velocity3D weaponSpeed = new Velocity3D();
		State s = stateJumpAttack;
		Attackable a = jumpAttack;
		if (a.isMovable()) weaponSpeed = character.getJumpWeaponSpeed();
		return startAttackSub(s, a, weaponSpeed);
	}

	private Attackable startAttackSub(State s, Attackable a, Velocity3D weaponSpeed) {
		State prevState = state;
		if (changeState(s, false)) {
			if (a instanceof Weapon) {
				((Weapon) a).body.apply(body.getPosition3D(), false);
				if (prevState instanceof StateNormalRight
						|| prevState instanceof StateRightMove) {
					// 右向きに弾を発射
					((Weapon) a).body.apply(weaponSpeed, false);
					((Weapon) a).body.apply(new Quaternion3D(0.0, 1.0, 0.0, 0), false);
				} if (prevState instanceof StateNormalLeft
						|| prevState instanceof StateLeftMove) {
					// 左向きに弾を発射
					Velocity3D weponSpeed2 = (Velocity3D)weaponSpeed.clone();
					weponSpeed2.setX(-weponSpeed2.getX());
					((Weapon) a).body.apply(weponSpeed2, false);
					((Weapon) a).body.apply(new Quaternion3D(0.0, 1.0, 0.0, Math.PI), false);
				} else if (lastMoveState instanceof StateNormalRight
						|| lastMoveState instanceof StateRightMove) {
					// 右向きに弾を発射
					((Weapon) a).body.apply(weaponSpeed, false);
					((Weapon) a).body.apply(new Quaternion3D(0.0, 1.0, 0.0, 0), false);
				} else {
					// 左向きに弾を発射
					Velocity3D weponSpeed2 = (Velocity3D)weaponSpeed.clone();
					weponSpeed2.setX(-weponSpeed2.getX());
					((Weapon) a).body.apply(weponSpeed2, false);
					((Weapon) a).body.apply(new Quaternion3D(0.0, 1.0, 0.0, Math.PI), false);
				}
			}
			a.appear();
			return a;
		} else {
			return null;
		}
	}

	private void endAttack() {
		normalAttack.disappear();
		upperAttack.disappear();
		jumpAttack.disappear();
	}

	void startJump() {
		State s = stateJump;
		changeState(s, false);
		mode = modeFreeFall;
	}

	void rightMove() {
		State s = stateRightMove;
		changeState(s, false);
	}

	void leftMove() {
		State s = stateLeftMove;
		changeState(s, false);
	}

	void guard() {
		State s = stateGuard;
		changeState(s, false);
		if (state instanceof StateGuard) {
			// StateGuard に状態が変わったときだけではなくて、StateGuard　状態のまま攻撃を受けたときも以下の処理を行う
			Position3D p = body.getPosition3D().clone();
			Transform3D t = new Transform3D();
			Vector3d v = new Vector3d(p.getX(), p.getY(), p.getZ());
			t.set(v);
			guardPos.setTransform(t);
			setGuardScale(this.gp);
		}
	}

	void bend() {
		State s = stateBend;
		changeState(s, false);
	}

	void flinch() {
		State s = stateFlinch;
		changeState(s, true);
	}

	void damaged(Position3D attackerPosition) {
		// 攻撃を受けたら敵の方向を向く
		if (attackerPosition.getX() > getPosition().getX()) {
			body.apply(new Quaternion3D(0.0, 1.0, 0.0, 0), false);
			lastMoveState = stateRightMove;
		} else {
			body.apply(new Quaternion3D(0.0, 1.0, 0.0, Math.PI), false);
			lastMoveState = stateLeftMove;
		}
		State s = stateDamaged;
		changeState(s, false);
	}

	void setHp(int hp) {
		this.hp = hp;
	}

	int getHp() {
		return hp;
	}

	void setTp(int tp) {
		this.tp = tp;
	}

	int getTp() {
		return tp;
	}

	void setGp(int gp) {
		this.gp = gp;
	}

	int getGp() {
		return gp;
	}

	void recoverGp() {
		if (state.getClass() == StateGuard.class) {
			gpCounter = 0;
			return;
		}
		gpCounter++;
		if (gpCounter < 20) {
			return;
		}
		gpCounter = 0;
		if (FightCalculation.MIN_GP < gp && gp < FightCalculation.MAX_GP) {
			this.gp += 1;
		} else if (gp >= FightCalculation.MAX_GP) {
			gp = FightCalculation.MAX_GP;
		}
	}

	void setDefeat(int defeat) {
		this.defeat = defeat;
	}

	int getDefeat() {
		return defeat;
	}

	void setDefeated(int defeated) {
		this.defeated = defeated;
	}

	int getDefeated() {
		return defeated;
	}

	/**
	 * ジャンプを開始してからの経過時間（ループ回数）を返す、
	 * ジャンプ状態にないときは -1 を返す
	 * @return 経過時間
	 */
	public long getElapsedTimeInJumping() {
		if (state instanceof StateJump) {
//			System.out.println(state.getCounter());
			return state.getCounter();
		}
//		System.out.println(-1);
		return -1L;
	}

	private void setGuardVisible(double j) {
		// TODO Auto-generated method stub
		Transform3D t = new Transform3D();
		t.setScale(j);
		guardScale.setTransform(t);
	}

	private void setGuardInvisible() {
		// TODO Auto-generated method stub
		Transform3D t = new Transform3D();
		t.setScale(0.01);
		guardScale.setTransform(t);

	}

	private void setGuardScale(int i) {
		double j = 0;
		if (i > 0) {
			j = 1.5 * (i / 100.0);
			setGuardVisible(j);
		} else {
			setGuardInvisible();
		}
	}
}