source: 2011/26/JaakkoL/Rogue Agent 2372/Rogue Agent 2372/Rogue Agent 2372/Player.cs @ 2402

using System;
using Jypeli;
using Jypeli.Assets;
using Jypeli.Controls;
using Jypeli.Effects;
using Jypeli.Widgets;

public class Player : GenCharacter
{
    const int speed = 200;
    const int jumpSpeed = 600;
    const int mass = 10;
    Image portrait = Game.LoadImage("Images/character");
    Image reversedPortrait = Game.LoadImage("Images/characterreverse");
    SoundEffect walking = Game.LoadSoundEffect("Sounds/walkingsound");

    string currentWeapon;
    Pistol pistol;
    Rifle rifle;

    Timer walker;

        public Player(double width, double height, Shape shape, int HP = 100)
        : base(width, height, shape, HP)
        {
        hitPoints = 100;
        AddedToGame += addControls;
        this.Image = portrait;
        this.CollisionIgnoreGroup = 1;
        this.Mass = mass;
        this.Tag = "Player";

        // Creating the timer system that is *supposed* to enable a nice walking sound effect
        walker = new Timer();
        walker.Interval = 0.7;
        walker.Trigger += playWalkingSound;

        // Creating the weapon; for now only a pistol
        pistol = new Pistol(20.0, 10.0);
        pistol.X = 18;
        pistol.Y = 11;
        pistol.ProjectileCollision += bulletReachedTarget;

        rifle = new Rifle(59.0, 11.0);
        rifle.X = 14;
        rifle.Y = 8;
        rifle.ProjectileCollision += bulletReachedTarget;

        changeWeapon(rifle.name());
        }

    private void addControls()
    {
        Game.Keyboard.Listen(Key.Right, ButtonState.Down, moveRight, "Moves right", speed);
        Game.Keyboard.Listen(Key.Left, ButtonState.Down, moveLeft, "Moves left", speed);
        Game.Keyboard.Listen(Key.Up, ButtonState.Down, jump, "Jumps", jumpSpeed);
        Game.Keyboard.Listen(Key.Space, ButtonState.Down, shoot, "Shoots");
        Game.Keyboard.Listen(Key.D1, ButtonState.Pressed, changeWeapon, "Changes weapon to the pistol", pistol.name());
        Game.Keyboard.Listen(Key.D2, ButtonState.Pressed, changeWeapon, "Changes weapon to the rifle", rifle.name());
    }

    private void changeWeapon(string weaponName)
    {
        if (weaponName == "Pistol")
        {
            this.Weapon = pistol;
        }
        else if (weaponName == "Rifle")
        {
            this.Weapon = rifle;
        }
        else
        {
            throw new Exception("Invalid weapon name: '" + weaponName + "'");
        }

        // We only get here if the weaponName is valid
        currentWeapon = weaponName;
    }

    // Because all the weapons have infinite ammo, we don't have to check for null
    private void shoot()
    {
        PhysicsObject bullet = this.Weapon.Shoot();
    }

    private void bulletReachedTarget(PhysicsObject bullet, PhysicsObject target)
    {
        bullet.Destroy();

        if (target.Tag == "MeleeAlien")
        {
            MeleeAlien alien = (MeleeAlien)target;

            int damage = 0;

            if (currentWeapon == pistol.name())
            {
                damage = pistol.firePower();
            }
            else if (currentWeapon == rifle.name())
            {
                damage = rifle.firePower();
            }

            alien.reduceHitPointsBy(damage);
        }
    }

    private void playWalkingSound(Timer sender)
    {
        // Disabled for now because it doesn't work at all:
        // the walking sound effect is only heard when standing still
        //this.walking.Play();
    }

    private void moveRight(int speed)
    {
        walker.Start();
        this.Walk(speed);
        this.Image = portrait;
    }

    private void moveLeft(int speed)
    {
        walker.Start();
        this.Walk(-speed);
        this.Image = reversedPortrait;
    }

    public void jump(int jumpSpeed)
    {
        this.Jump(jumpSpeed);
    }
}