public Player CreatePlayer(Texture2D crateTexture)
{
var crateShapeDef = new PolygonDef();
var cratePhysicsSize = GameUtils.PhysicsVec(new Vector2(crateTexture.Width, crateTexture.Height));
crateShapeDef.Vertices = new Vec2[4];
crateShapeDef.Vertices[0] = new Vec2(-(cratePhysicsSize.X / 2), -(cratePhysicsSize.Y / 2));
crateShapeDef.Vertices[1] = new Vec2((cratePhysicsSize.X / 2), -(cratePhysicsSize.Y / 2));
crateShapeDef.Vertices[2] = new Vec2((cratePhysicsSize.X / 2), (cratePhysicsSize.Y / 2));
crateShapeDef.Vertices[3] = new Vec2(-(cratePhysicsSize.X / 2), (cratePhysicsSize.Y / 2));
crateShapeDef.VertexCount = 4;
Logger.Info($"crate size = ({cratePhysicsSize.X},{cratePhysicsSize.Y})");
crateShapeDef.Density = GameData.PlayerDensity;
crateShapeDef.Friction = GameData.PlayerFriction;
crateShapeDef.Filter.CategoryBits = CollisionCategory.Player;
crateShapeDef.Filter.MaskBits = (ushort)(CollisionCategory.Wall | CollisionCategory.Alien | CollisionCategory.AlienProjectile | CollisionCategory.Pickup);
var crateBodyDef = new BodyDef();
crateBodyDef.IsBullet = true;
var playerPosition = new Vec2(GameData.PlayerStartX, GameData.PlayerStartY);
crateBodyDef.Position.Set(playerPosition.X, playerPosition.Y);
var crateBody = PhysicsWorld.CreateBody(crateBodyDef);
var crateShape = crateBody.CreateShape(crateShapeDef);
crateBody.SetMassFromShapes();
var player = new Player(Content, PhysicsWorld, crateTexture, GameWorld, crateShape, crateBody, AnimationFactory, WeaponInventory, FilteredInputListener, GameData, GameUtils);
GameWorld.AddGameObject(player);
return(player);
}
public override void OnCollision(GameObject other, Vec2 position)
{
if (!PendingDispose)
{
if (other is Projectile)
{
var proj = other as Projectile;
if (!proj.PendingDispose)
{
GameWorld.AddGameObject(AnimationFactory.Create(position, "LaserExplosion"));
Player.TotalScore++;
Hp -= proj.Definition.Damage;
if (Hp <= 0)
{
Player.TotalScore += _definition.ScoreValue;
PendingDispose = true;
DeathLocation = RigidBody.GetPosition();
DeathEffect.Play();
}
}
}
}
}
/// <summary>
/// creates an instance of the given alien definition name
/// </summary>
/// <param name="name"></param>
public Alien Create(string name)
{
if (_alienDefinitions != null)
{
var definition = _alienDefinitions.FirstOrDefault(x => x.Name.Equals(name, StringComparison.OrdinalIgnoreCase));
if (definition == null)
{
throw new Exception($"No Alien definition found for name {name}");
}
var rand = new Random((int)(DateTime.UtcNow - DateTime.MinValue).Ticks);
var texture = _contentManager.Load <Texture2D>(definition.TextureName);
var physicsSize = GameUtils.PhysicsVec(new Vector2(texture.Width * definition.Scale, texture.Height * definition.Scale));
var minX = GameData.MaxXDimension * .1;
var minY = GameData.MaxYDimension * .1;
var maxX = GameData.MaxXDimension - minX;
var maxY = GameData.MaxYDimension - minY;
var loc = new Vec2(rand.Next((int)minX, (int)maxX), rand.Next((int)minY, (int)maxY));
var shapeDef = new PolygonDef();
shapeDef.Vertices = new Vec2[definition.Vertices.Length];
for (var i = 0; i < definition.Vertices.Length; ++i)
{
var x = definition.Vertices[i].X * definition.Scale;
var y = definition.Vertices[i].Y * definition.Scale;
shapeDef.Vertices[i] = GameUtils.PhysicsVec(new Vector2(x, y));
}
shapeDef.VertexCount = shapeDef.Vertices.Length;
shapeDef.Density = definition.Density;
shapeDef.Friction = definition.Friction;
shapeDef.Filter.CategoryBits = CollisionCategory.Alien;
shapeDef.Filter.MaskBits = (ushort)(CollisionCategory.Wall | CollisionCategory.Player | CollisionCategory.PlayerProjectile | CollisionCategory.Alien);
var bodyDef = new BodyDef();
bodyDef.IsBullet = true;
bodyDef.Position.Set(loc.X, loc.Y);
var body = _physicsWorld.CreateBody(bodyDef);
var shape = body.CreateShape(shapeDef);
body.SetMassFromShapes();
var healthBar = HealthBarFactory.Create("AlienHealthBar", 100, 5);
var gameObject = new Alien(_contentManager, _physicsWorld, GameData, GameUtils, definition, _animationFactory, GameWorld, texture, shape, body, Player, healthBar);
GameWorld.AddGameObject(gameObject);
return(gameObject);
}
throw new Exception("Uninitialized definitions");
}
public override void OnCollision(GameObject other, Vec2 position)
{
if (other is Projectile)
{
var proj = other as Projectile;
if (!proj.PendingDispose)
{
GameWorld.AddGameObject(AnimationFactory.Create(position, "LaserExplosion"));
Hp -= proj.Definition.Damage;
if (Hp <= 0)
{
Hp = 0;
LivesRemaining--;
if (LivesRemaining < 0)
{
LivesRemaining = 0;
}
if (Active)
{
DeathEffect.Play();
AnimationFactory.Create(RigidBody.GetPosition(), "AlienExplosion");
}
Active = false;
}
}
}
else if (other is Health)
{
var health = other as Health;
Hp += health.Hp;
if (Hp >= MaxHp)
{
Hp = MaxHp;
}
HealthEffect.Play();
}
else if (other is Laser)
{
WeaponEffect.Play();
var laser = other as Laser;
WeaponInventory.AddToInventory(laser);
}
}