source: 2012/27/DenisZ/TheDungeonGame/TheDungeonGame/TheDungeonGame/Player.cs @ 3624

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Jypeli;
using Jypeli.Controls;
using MathHelper;
using Rooms;
using Jypeli.Assets;
using Items;
using Jypeli.Widgets;

namespace Entity
{
    public class Player : PhysicsObject
    {
        public const double playerWidth = 120 / 3;
        public const double playerHeight = 180 / 3;
        // private PhysicsObject head;
        public Vector movementVector = Vector.Zero;
        public bool isMoving = false;
        private Keyboard keyboard;
        public double speed = 250;
        private TheDungeonGame game;
        public Room currentRoom;
        public IntMeter playerHealth;
        private Item itemInInventory;
        private AssaultRifle weapon;

        private Angle UpAngle = Angle.FromDegrees(90);
        private Angle RightAngle = Angle.Zero;
        private Angle DownAngle = Angle.FromDegrees(270);
        private Angle LeftAngle = Angle.FromDegrees(180);

        public bool isDead = false;

        private Image[] walkingImages = new Image[2];
        private Image idleTexture;
        private Animation walkingAnimation;
        private bool isAnimationRunning = false;

        public Player(TheDungeonGame game, Vector pos, Image texture)
            : base(playerWidth, playerHeight)
        {
            playerHealth = new IntMeter(10, 0, 50);
            this.game = game;
            keyboard = game.Keyboard;
            CanRotate = false;
            setupKeys();
            idleTexture = texture;
            Image = idleTexture;
            for (int i = 0; i < walkingImages.Length; i++)
            {
                walkingImages[i] = TheDungeonGame.LoadImage("animations/player/walk" + (i + 1));
            }
            walkingAnimation = new Animation(walkingImages);
            walkingAnimation.FPS = 10;
            Tag = "Player";
        }

        public void setupWeapon()
        {
            weapon = new AssaultRifle(playerWidth / 3, playerHeight / 3);
            weapon.Top = Top;
            weapon.Image = null;
            weapon.Color = Color.Transparent;
            weapon.CanHitOwner = false;
            weapon.InfiniteAmmo = true;
            weapon.MaxAmmoLifetime = TimeSpan.FromSeconds(0.5);
            weapon.TimeBetweenUse = TimeSpan.FromSeconds(0.4);
            weapon.ProjectileCollision = bulletCollided;
            WeaponDamage = 1;
            Add(weapon);
        }

        public void resetValues()
        {
            playerHealth = new IntMeter(10, 0, 50);
            WeaponDamage = 1;
            WeaponSpeed = TimeSpan.FromSeconds(0.4);
            BulletLife = TimeSpan.FromSeconds(0.5);
            isDead = false;
            Animation = null;
            isAnimationRunning = false;
            Image = idleTexture;
        }

        private void setupKeys()
        {
            keyboard.Listen(Key.W, ButtonState.Down, move, "Move Up", new Vector(0, speed));
            keyboard.Listen(Key.A, ButtonState.Down, move, "Move Left", new Vector(-speed, 0));
            keyboard.Listen(Key.S, ButtonState.Down, move, "Move Down", new Vector(0, -speed));
            keyboard.Listen(Key.D, ButtonState.Down, move, "Move Right", new Vector(speed, 0));

            keyboard.Listen(Key.W, ButtonState.Released, removeMovement, null, new Vector(0, speed));
            keyboard.Listen(Key.A, ButtonState.Released, removeMovement, null, new Vector(-speed, 0));
            keyboard.Listen(Key.S, ButtonState.Released, removeMovement, null, new Vector(0, -speed));
            keyboard.Listen(Key.D, ButtonState.Released, removeMovement, null, new Vector(speed, 0));

            keyboard.Listen(Key.Up, ButtonState.Down, shootAmmo, "Shoot up", UpAngle);
            keyboard.Listen(Key.Down, ButtonState.Down, shootAmmo, "Shoot up", DownAngle);
            keyboard.Listen(Key.Right, ButtonState.Down, shootAmmo, "Shoot up", RightAngle);
            keyboard.Listen(Key.Left, ButtonState.Down, shootAmmo, "Shoot up", LeftAngle);

          //  keyboard.Listen(Key.Space, ButtonState.Pressed, useItemInInventory, "Use Item");
        }

        private void bulletCollided(PhysicsObject collidingObject, PhysicsObject targetObject)
        {
            collidingObject.IsVisible = true;
            if (targetObject.Tag.Equals("Enemy"))
            {
                EntityBase entity = (EntityBase)targetObject;
                if (entity.hit(WeaponDamage))
                    currentRoom.EntityAmount--;
                collidingObject.Destroy();
            }
            else if (targetObject.Tag.Equals("Wall") || targetObject.Tag.Equals("ObjectRock") || targetObject.Tag.Equals("Item")) 
                collidingObject.Destroy();
        }

        public void hit(int damage)
        {
            playerHealth.Value -= damage;
            if (playerHealth.Value <= 0)
            {
                showLostScreen();
            }
                
        }

        public void showLostScreen()
        {
            if (isDead) return;
            isDead = true;
            string[] buttonNames = {"Retry", "Exit Game"};
            keyboard.DisableAll();
            MultiSelectWindow lostWindow = new MultiSelectWindow("Oh noes! You appear to be dead! \nBut, you can always start a new journey...", buttonNames);
            lostWindow.AddItemHandler(0, game.restartGame);
            lostWindow.AddItemHandler(1, game.Exit);
            game.Add(lostWindow);
        }

        public TimeSpan WeaponSpeed
        {
            get
            {
                return weapon.TimeBetweenUse;
            }
            set
            {
                weapon.TimeBetweenUse = value;
            }
        }

        public TimeSpan BulletLife
        {
            get
            {
                return weapon.MaxAmmoLifetime;
            }
            set
            {
                weapon.MaxAmmoLifetime = value;
            }
        }

        public int WeaponDamage
        {
            get;
            set;
        }

        private void shootAmmo(Angle angle)
        {
            weapon.Angle = angle;
            PhysicsObject bullet = weapon.Shoot();
            if (bullet != null)
                bullet.IsVisible = true;
        }

        private void useItemInInventory()
        {
            if (itemInInventory == null) return;
            itemInInventory.useItem(game);
            updateGuiImage();
        }

        public Item ItemInInventory
        {
            get
            {
                return itemInInventory;
            }
            set
            {
                itemInInventory = value;
            }
        }

        public void updateGuiImage()
        {
            game.gui.setInventoryImage(itemInInventory);
        }

        public void performCollision(PhysicsObject player, PhysicsObject target)
        {
            Room room;
            if (target.Tag.Equals(RoomDirection.North) || target.Tag.Equals(RoomDirection.East) || target.Tag.Equals(RoomDirection.South) || target.Tag.Equals(RoomDirection.West))
            {
                ObjectDoor door = (ObjectDoor)target;
                if (door != null && door.IsLocked) return;
            }

            if (target.Tag.Equals(RoomDirection.North))
            {
                room = game.LevelGen.getRoomAt(currentRoom.PosOnGrid + RoomDirection.getOffsetFromDir(RoomDirection.North));
                game.moveToRoom(room, RoomDirection.North);
                currentRoom = room;
            }
            else if (target.Tag.Equals(RoomDirection.East))
            {
                room = game.LevelGen.getRoomAt(currentRoom.PosOnGrid + RoomDirection.getOffsetFromDir(RoomDirection.East));
                game.moveToRoom(room, RoomDirection.East);
                currentRoom = room;
            }
            else if (target.Tag.Equals(RoomDirection.South))
            {
                room = game.LevelGen.getRoomAt(currentRoom.PosOnGrid + RoomDirection.getOffsetFromDir(RoomDirection.South));
                game.moveToRoom(room, RoomDirection.South);
                currentRoom = room;
            }
            else if (target.Tag.Equals(RoomDirection.West))
            {
                room = game.LevelGen.getRoomAt(currentRoom.PosOnGrid + RoomDirection.getOffsetFromDir(RoomDirection.West));
                game.moveToRoom(room, RoomDirection.West);
                currentRoom = room;
            }
        }

        public void handleItemPickup(IPhysicsObject player, IPhysicsObject item)
        {
            ItemEntity itemEnt = (ItemEntity)item;
            itemEnt.bindedItem.onPickup(this);
            item.Destroy();
        }

        public override void Update(Time time)
        {
            if (!isMoving)
            {
                movementVector = Vector.Zero;
                Stop();
                
            }

            isMoving = false;

            if (currentRoom.EntityAmount == 0)
            {
                for(int i = 0; i < 4; i++)
                {
                    if (currentRoom.doors[i] == null) continue;
                    currentRoom.doors[i].IsLocked = false;
                    currentRoom.setDoorTexture(game.objectTextures[1], i);
                }
            }
            else
            {
                    for (int i = 0; i < 4; i++)
                    {
                        if (currentRoom.doors[i] == null) continue;
                        currentRoom.doors[i].IsLocked = true;
                        currentRoom.setDoorTexture(game.objectTextures[0], i);
                    }
            }


            base.Update(time);
        }

        public void move(Vector vec)
        {
            if (vec.X != 0)
                movementVector.X = vec.X;
            if (vec.Y != 0)
                movementVector.Y = vec.Y;
            if (!isAnimationRunning)
            {
                Animation = walkingAnimation;
                Animation.Start();
                isAnimationRunning = true;
            }         
            Move(movementVector);
            isMoving = true;
        }

        public void removeMovement(Vector vec)
        {
            movementVector = VecMath.sub(movementVector, vec);
            Animation = null;
            isAnimationRunning = false;
            Image = idleTexture;
        }
    }
}