evilsatellites/EvilSatellites/Objects/Projectile.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SynthySound;
using Microsoft.Xna.Framework;
using EvilSatellites.Screens;

namespace EvilSatellites.Objects
{
    public class Projectile : AbstractGameObject
    {
        private ISoundEffect3D Sound;
        private Random rnd = new Random();
        public Vector3 Direction;
        private Vector3 StartPos;
        private float Range;
        public IGameObject Owner;
        public Projectile(IScreen screen, Vector3 pos, Matrix rotation, IGameObject owner) : base(screen)
        {
            Owner = owner;
            StartPos = pos;
            Position = pos;
            Dimensions = new Vector3(5, 5, 5);
            Direction = new Vector3(0, 0, -1);
            Rotation = rotation;
            Range = 500;
            Type = ObjectType.Projectile;
            Activate();
        }

        public override void Activate()
        {
            ShouldDestroy = false;
            Active = true;
            Sound = Screen.Manager.Sound.Load3D(@"sfx/bullets/1.wav");
            Sound.Loop = true;
            Sound.Play();
            Sound.Pitch = 0.9 + rnd.NextDouble()*0.3;
            Sound.Position = new System.Numerics.Vector3(Position.X+Dimensions.X/2, Position.Y+Dimensions.Y/2, Position.Z+Dimensions.Z/2);
        }
        public override void Destroy()
        {
            Sound.Stop();
            Sound.Destroy();
            ShouldDestroy = true;
            Active = false;
        }

        override public void Update(GameTime gameTime)
        {
            Move(Direction);
            if (Vector3.Distance(StartPos, Position) > Range)
            {
                Destroy();
            }
            Sound.Position = new System.Numerics.Vector3(Position.X + Dimensions.X / 2, Position.Y + Dimensions.Y / 2, Position.Z + Dimensions.Z / 2);
        }

        public override void OnCollision(IGameObject obj)
        {
            if (obj.Type == ObjectType.Projectile || obj.Type == ObjectType.Debris) return;
            if (obj == Owner) return;
            Screen.Manager.Sound.PlayOneshot(@"sfx/physics/impacts/bullet/"+(rnd.Next(5)+1)+".wav", new System.Numerics.Vector3(Position.X+Dimensions.X/2, Position.Y+Dimensions.Y/2, Position.Z+Dimensions.Z/2), Screen.Manager.EnvironmentEffect);
            Destroy();
        }
    }
}