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‎Bullet.cs

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#region Using Statements
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using System;
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using System.Collections.Generic;
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using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Audio;
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using Microsoft.Xna.Framework.Content;
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using Microsoft.Xna.Framework.Graphics;
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using Microsoft.Xna.Framework.Input;
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using Microsoft.Xna.Framework.Storage;
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using Microsoft.Xna.Framework.GamerServices;
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#endregion
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namespace Tanks
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{
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class Bullet
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{
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private Model bulletModel;
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private Matrix world = Matrix.Identity;
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private BasicEffect effect;
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private GraphicsDevice graphicsDevice;
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private Matrix[] boneTransforms;
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private Tank tank;
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private Tank targetTank;
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private Map map;
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private Vector3 position, direction, orientation, velocity, gravity;
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private BoundingSphere boundingSphere;
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private float speed, yaw;
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private bool shoot = false;
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/* Music / sound related
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private SoundEffect shootSound;
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private SoundEffectInstance shootSoundInstance;
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*/
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public BoundingSphere BoundingSphere
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{
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get { return boundingSphere; }
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set { boundingSphere = value; }
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}
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public Vector3 Position
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{
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get { return position; }
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set { position = value; }
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}
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public Vector3 Orientation
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{
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get { return orientation; }
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set { orientation = value; }
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}
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public Bullet(GraphicsDevice graphicsDevice, ContentManager contentManager, Tank tank, Tank targetTank, Map map)
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{
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/* Music / sound related
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shootSound = contentManager.Load<SoundEffect>("shootSound");
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shootSoundInstance = shootSound.CreateInstance();
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shootSoundInstance.Volume = 0.7f;
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*/
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this.graphicsDevice = graphicsDevice;
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bulletModel = contentManager.Load<Model>("esfera");
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this.effect = map.Effect;
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this.tank = tank;
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this.targetTank = targetTank;
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this.map = map;
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this.orientation = tank.TankOrientation;
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boundingSphere = new BoundingSphere();
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boundingSphere.Radius = 0.8f;
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speed = 0.2f;
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gravity = new Vector3(0, -9.8f, 0);
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boneTransforms = new Matrix[bulletModel.Bones.Count];
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}
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public void Update(GameTime gameTime)
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{
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if (Keyboard.GetState().IsKeyDown(Keys.Space) && shoot == false)
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{
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/* Music / sound related
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shootSoundInstance.Play();
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*/
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direction = Vector3.Zero;
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Matrix rotationMatrix = Matrix.CreateFromYawPitchRoll(tank.Yaw + tank.TurretRotationValue, tank.CannonRotationValue, 0);
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direction = Vector3.Transform(new Vector3(0, 0, 1), rotationMatrix);
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direction.Normalize();
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position = tank.Position + tank.TankOrientation * 1.7f + direction;
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velocity = direction * 20;
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bulletModel.Root.Transform = Matrix.CreateScale(0.2f) * Matrix.CreateTranslation(position);
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boundingSphere.Center = position;
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shoot = true;
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}
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if (shoot)
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{
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float time = (float)gameTime.ElapsedGameTime.TotalSeconds;
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position += velocity * time;
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velocity += gravity * time;
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boundingSphere.Center = position;
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}
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else
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{
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boundingSphere.Center = Vector3.Zero;
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position = tank.Position;
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bulletModel.Root.Transform = Matrix.CreateScale(0.2f) * Matrix.CreateTranslation(position);
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}
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if ((position.X < 1f || position.X > map.Width - 1f || position.Z < 1f || position.Z > map.Height - 1f)
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|| position.Y < map.CalcSurfaceFollow(position, 0f).Y || targetTank.Collided)
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{
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shoot = false;
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boundingSphere.Center = Vector3.Zero;
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}
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}
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public void UpdateP2(GameTime gameTime)
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{
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if (Keyboard.GetState().IsKeyDown(Keys.NumPad5) && shoot == false)
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{
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/* Music / sound related
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shootSound.Play();
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*/
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direction = Vector3.Zero;
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Matrix rotationMatrix = Matrix.CreateFromYawPitchRoll(tank.Yaw + tank.TurretRotationValue, tank.CannonRotationValue, 0);
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direction = Vector3.Transform(new Vector3(0, 0, 1), rotationMatrix);
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direction.Normalize();
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position = tank.Position + tank.TankOrientation * 1.7f + direction;
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velocity = direction * 20;
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bulletModel.Root.Transform = Matrix.CreateScale(0.2f) * Matrix.CreateTranslation(position);
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shoot = true;
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}
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if (shoot)
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{
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float time = (float)gameTime.ElapsedGameTime.TotalSeconds;
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position += velocity * time;
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velocity += gravity * time;
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boundingSphere.Center = position;
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}
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else
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{
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boundingSphere.Center = Vector3.Zero;
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position = tank.Position;
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bulletModel.Root.Transform = Matrix.CreateScale(0.2f) * Matrix.CreateTranslation(position);
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}
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if ((position.X < 1f || position.X > map.Width - 1f || position.Z < 1f || position.Z > map.Height - 1f) || position.Y < map.CalcSurfaceFollow(position, 0f).Y || targetTank.Collided)
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{
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shoot = false;
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boundingSphere.Center = Vector3.Zero;
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}
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}
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public void Draw()
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{
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bulletModel.Root.Transform = world;
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bulletModel.CopyAbsoluteBoneTransformsTo(boneTransforms);
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Matrix worldMatrix = Matrix.CreateScale(0.2f) * Matrix.CreateTranslation(position);
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if (shoot)
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{
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foreach (ModelMesh mesh in bulletModel.Meshes)
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{
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foreach (BasicEffect effect in mesh.Effects)
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{
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effect.View = this.effect.View;
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effect.Projection = this.effect.Projection;
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effect.World = boneTransforms[mesh.ParentBone.Index] * worldMatrix;
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effect.EnableDefaultLighting();
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effect.LightingEnabled = true;
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}
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mesh.Draw();
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}
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}
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}
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}
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}

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