Merge branch 'master' of github.com:benbeltran/super-polarity

[rbdr/super-polarity] / Super Polarity / Actors / Actor.cs

diff --git a/Super Polarity/Actors/Actor.cs b/Super Polarity/Actors/Actor.cs
new file mode 100644 (file)
index 0000000..3bb06be
--- /dev/null
+++ b/Super Polarity/Actors/Actor.cs
@@ -0,0 +1,267 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Content;
+using Microsoft.Xna.Framework.Graphics;
+
+namespace SuperPolarity
+{
+    class Actor
+    {
+        protected SuperPolarity game;
+
+        public List<Actor> Children;
+
+        // Graphics / In-Game
+        protected Texture2D Texture;
+        protected Vector2 Origin;
+        public bool Active;
+        public Rectangle Box;
+        public Vector4 BoxDimensions;
+        protected Texture2D BoxTexture;
+
+        // Physical Properties
+        public Vector2 Position;
+        protected Vector2 Velocity;
+        protected Vector2 Acceleration;
+        public float Angle;
+
+        // Constraints / Behavior
+        public float MaxVelocity;
+        protected float AccelerationRate;
+        public int HP;
+        protected bool Immortal;
+        public bool Dying;
+        public int Value;
+        protected Color Color;
+
+        public Actor Parent;
+
+        public int Width
+        {
+            get { return Texture.Width; }
+        }
+
+        public int Height
+        {
+            get { return Texture.Height; }
+        }
+
+        public Actor(SuperPolarity newGame)
+        {
+            game = newGame;
+            BoxDimensions.X = 20;
+            BoxDimensions.Y = 20;
+            BoxDimensions.W = 15;
+            BoxDimensions.Z = 15;
+        }
+
+        public virtual void Initialize(Texture2D texture, Vector2 position)
+        {
+            Texture = texture;
+            Position = position;
+            Active = true;
+
+            Children = new List<Actor>();
+
+            Origin = new Vector2(Texture.Width / 2, Texture.Height / 2);
+            Velocity = new Vector2(0, 0);
+            Acceleration = new Vector2(0, 0);
+
+            MaxVelocity = 5;
+            AccelerationRate = 10;
+
+            HP = 1;
+            Immortal = false;
+
+            Dying = false;
+            Value = 1;
+
+            InitBox();
+            BoxTexture = new Texture2D(game.GraphicsDevice, 1, 1);
+            BoxTexture.SetData(new Color[] { Color.White });
+
+            Color = Color.White;
+        }
+
+        protected void InitBox()
+        {
+            Box = new Rectangle((int)(Position.X - BoxDimensions.X), (int)(Position.Y - BoxDimensions.X), (int)(BoxDimensions.X + BoxDimensions.X + BoxDimensions.W), (int)(BoxDimensions.Y + BoxDimensions.Y + BoxDimensions.Z));
+        }
+
+        public void AutoDeccelerate(GameTime gameTime)
+        {
+            if (Acceleration.X == 0 && Velocity.X > 0)
+            {
+                if (AccelerationRate * gameTime.ElapsedGameTime.TotalSeconds > Velocity.X)
+                {
+                    Velocity.X = 0;
+                    Acceleration.X = 0;
+                }
+                else
+                {
+                    Acceleration.X = -AccelerationRate;
+                }
+            }
+
+            if (Acceleration.X == 0 && Velocity.X < 0)
+            {
+                if (-AccelerationRate * gameTime.ElapsedGameTime.TotalSeconds < Velocity.X)
+                {
+                    Velocity.X = 0;
+                    Acceleration.X = 0;
+                }
+                else
+                {
+                    Acceleration.X = AccelerationRate;
+                }
+            }
+
+            if (Acceleration.Y == 0 && Velocity.Y > 0)
+            {
+                if (AccelerationRate * gameTime.ElapsedGameTime.TotalSeconds > Velocity.Y)
+                {
+                    Velocity.Y = 0;
+                    Acceleration.Y = 0;
+                }
+                else
+                {
+                    Acceleration.Y = -AccelerationRate;
+                }
+            }
+
+            if (Acceleration.Y == 0 && Velocity.Y < 0)
+            {
+                if (-AccelerationRate * gameTime.ElapsedGameTime.TotalSeconds < Velocity.Y)
+                {
+                    Velocity.Y = 0;
+                    Acceleration.Y = 0;
+                }
+                else
+                {
+                    Acceleration.Y = AccelerationRate;
+                }
+            }
+        }
+
+        public virtual void Update(GameTime gameTime)
+        {
+            Move(gameTime);
+            ChangeAngle();
+            CheckOutliers();
+            UpdateBox();
+        }
+
+        protected virtual void UpdateBox()
+        {
+            Box.X = (int)(Position.X - BoxDimensions.X);
+            Box.Y = (int)(Position.Y - BoxDimensions.Y);
+        }
+
+        public virtual void Move(GameTime gameTime)
+        {
+            AutoDeccelerate(gameTime);
+
+            var maxVelocity = MaxVelocity;
+
+            Velocity.X = Velocity.X + Acceleration.X * (float)gameTime.ElapsedGameTime.TotalSeconds;
+            Velocity.Y = Velocity.Y + Acceleration.Y * (float)gameTime.ElapsedGameTime.TotalSeconds;
+
+            if (Velocity.X > MaxVelocity)
+            {
+                Velocity.X = MaxVelocity;
+            }
+
+            if (Velocity.X < -MaxVelocity)
+            {
+                Velocity.X = -MaxVelocity;
+            }
+
+            if (Velocity.Y > MaxVelocity)
+            {
+                Velocity.Y = MaxVelocity;
+            }
+
+            if (Velocity.Y < -MaxVelocity)
+            {
+                Velocity.Y = -MaxVelocity;
+            }
+
+            Position.X = Position.X + Velocity.X;
+            Position.Y = Position.Y + Velocity.Y;
+        }
+
+        public void ChangeAngle()
+        {
+            if (Math.Abs(Velocity.Y) <= 0.1 && Math.Abs(Velocity.X) <= 0.1)
+            {
+                return;
+            }
+            Angle = (float)Math.Atan2(Velocity.Y, Velocity.X);
+        }
+
+        public virtual void Draw(SpriteBatch spriteBatch)
+        {
+            Actor child = null;
+            
+            //  TODO: Check what's up with the null children.
+            if (Children == null)
+            {
+                return;
+            }
+            for (var i = Children.Count - 1; i >= 0; i--)
+            {
+                child = Children[i];
+                child.Draw(spriteBatch);
+            }
+
+            spriteBatch.Draw(Texture, Position, null, Color, Angle, Origin, 1f, SpriteEffects.None, 0f);
+            //spriteBatch.Draw(BoxTexture, Box, new Color(255, 0, 255, 25));
+        }
+
+        void CheckOutliers()
+        {
+            for (var i = Children.Count; i > 0; i--)
+            {
+                var actor = Children[i - 1];
+                if (actor.Position.X < -SuperPolarity.OutlierBounds || actor.Position.Y < -SuperPolarity.OutlierBounds ||
+                    actor.Position.X > game.GraphicsDevice.Viewport.Width + SuperPolarity.OutlierBounds ||
+                    actor.Position.Y > game.GraphicsDevice.Viewport.Height + SuperPolarity.OutlierBounds)
+                {
+                    Children.Remove(actor);
+                }
+            }
+        }
+
+        public virtual void Collide(Actor other, Rectangle collision)
+        {
+        }
+
+        public void TakeDamage(int amount)
+        {
+            if (!Immortal)
+            {
+                HP = HP - amount;
+                if (HP < 0)
+                {
+                    Die();
+                }
+            }
+        }
+
+        protected virtual void Die()
+        {
+            Dying = true;
+        }
+
+        public virtual void CleanUp()
+        {
+            Texture = null;
+            BoxTexture = null;
+            Children = null;
+            Texture = null;
+        }
+    }
+}