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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Content;
using System.Security.Cryptography;
namespace SuperPolarity
{
class StandardShip : Ship
{
protected bool Flashing;
protected int ChangeRate;
protected int CurrentTime;
public int AngleChangeProbability;
protected int BouncePadding;
protected float RotationFactor;
protected Random Random;
protected bool AddingAngle;
public StandardShip(SuperPolarity newGame) : base(newGame) {}
public override void Initialize(Texture2D texture, Vector2 position)
{
base.Initialize(texture, position);
var cryptoResult = new byte[4];
new RNGCryptoServiceProvider().GetBytes(cryptoResult);
ChangeRate = 50;
AngleChangeProbability = 50;
BouncePadding = 0;
MaxVelocity = 3;
CurrentTime = 0;
RotationFactor = (float) (3 * Math.PI / 180);
Random = new Random(BitConverter.ToInt32(cryptoResult, 0));
AddingAngle = true;
}
public override void Magnetize(Ship ship, float distance, float angle)
{
if (ship.GetType() == typeof(MainShip)) {
base.Magnetize(ship, distance, angle);
}
}
public override void Update(GameTime gameTime)
{
CurrentTime += gameTime.ElapsedGameTime.Milliseconds;
if (!Magnetizing)
{
AutoMove();
BounceBack();
}
ChangeAngle();
Position += Velocity;
UpdateBox();
Magnetizing = false;
if (Flashing)
{
Color = new Color(255, 255, 255, 128);
Flashing = false;
}
else
{
Color = Color.White;
}
}
protected void AutoMove()
{
float newAngle = Angle;
if (CurrentTime < ChangeRate)
{
return;
}
if (Random.Next(AngleChangeProbability) == 2)
{
AddingAngle = !AddingAngle;
}
CurrentTime = 0;
if (AddingAngle)
{
newAngle += (float) ( Random.NextDouble() * RotationFactor);
}
else
{
newAngle -= (float) (Random.NextDouble() * RotationFactor);
}
Velocity.X = (float) (MaxVelocity * Math.Cos(newAngle));
Velocity.Y = (float) (MaxVelocity * Math.Sin(newAngle));
}
protected void BounceBack()
{
if (Position.X + Width < -BouncePadding && Velocity.X < 0)
{
Velocity.X = -Velocity.X;
}
if (Position.Y + Height < -BouncePadding && Velocity.Y < 0)
{
Velocity.Y = -Velocity.Y;
}
if (Position.X > game.GraphicsDevice.Viewport.Width + BouncePadding && Velocity.X > 0)
{
Velocity.X = -Velocity.X;
}
if (Position.Y > game.GraphicsDevice.Viewport.Height + BouncePadding && Velocity.Y > 0)
{
Velocity.Y = -Velocity.Y;
}
}
public override void Collide(Actor other, Rectangle collision)
{
if (Dying)
{
return;
}
if (other.GetType() == typeof(MainShip))
{
Die();
return;
}
if (other.GetType() == typeof(Bullet))
{
var theBullet = (Bullet)other;
TakeDamage(theBullet.Power);
Flashing = true;
}
}
protected override void Die()
{
ActorManager.CheckOut(this);
Renderer.CheckOut(this);
game.Player.AddScore(Value);
game.Player.AddMultiplier(1);
}
}
}
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