Added HUD drawing logic.

AlientAttack.MonoGame/Things/Player.cs

@@ -1,9 +1,14 @@
-using AlienAttack.MonoGame.Things.Weapons;
+using AlienAttack.MonoGame.Things.Bullets;
+using AlienAttack.MonoGame.Things.Enemies;
+using AlienAttack.MonoGame.Things.Items;
+using AlienAttack.MonoGame.Things.Weapons;
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 using Microsoft.Xna.Framework.Input;
 using System;
 using System.Collections.Generic;
+using System.IO;
+using static System.Net.Mime.MediaTypeNames;
 
 namespace AlienAttack.MonoGame.Things;
 
@@ -35,7 +40,6 @@ internal class Player : MoveableSprite
     protected PlayerHorizontalMoveState MoveState = PlayerHorizontalMoveState.None;
     protected MoveFlag MoveFlags;
     protected ulong MoveThreshold = 0;
-    //protected ulong FireThreshold = 0;
     protected ICollection<IWeapon> ActiveWeapons = [];
 
     protected int CurrentExhaustFrame = 1;
@@ -44,11 +48,16 @@ internal class Player : MoveableSprite
     protected int CurrentExhaustAnimationThreshold = 10;
     protected int CurrentExhaustDirection = 1;
 
+    public int Health { get; protected set; }
+    public int Shield { get; protected set; }
+
     public Player(int x, int y) : base(x, y)
     {
         BoundBox = new Rectangle(0, 0, 64, 64);
         ActiveWeapons.Add(new Minigun());
-        ActiveWeapons.Add(new FastMinigun());
+        //ActiveWeapons.Add(new FastMinigun());
+        Health = 100;
+        Shield = 100;
     }
 
     //Texture2D texture = Game
@@ -244,12 +253,6 @@ internal class Player : MoveableSprite
 
     private void CheckFire(SpriteUpdateContext context)
     {
-        //if (FireThreshold > 0)
-        //{
-        //    FireThreshold--;
-        //    return;
-        //}
-
         foreach (IWeapon weapon in ActiveWeapons)
         {
             weapon.UpdateFireThreshold();
@@ -262,14 +265,6 @@ internal class Player : MoveableSprite
         {
             weapon.TryFire(this, context);
         }
-
-        //MinigunBulletSmall bullet1 = new((int)Position.X + 12, (int)Position.Y + 6, 0, -4, this);
-        //MinigunBulletSmall bullet2 = new((int)Position.X + BoundBox.Width - 20, (int)Position.Y + 6, 0, -4, this);
-
-        //context.SpawnSprite(bullet1);
-        //context.SpawnSprite(bullet2);
-
-        //FireThreshold = 15;
     }
 
     private static bool IsFireButtonPressed()
@@ -280,4 +275,68 @@ internal class Player : MoveableSprite
 
         return keyState.IsKeyDown(Keys.Space) || mouseState.LeftButton == ButtonState.Pressed || gamePadState.Buttons.A == ButtonState.Pressed;
     }
+
+    private void TakeDamage(int amount)
+    {
+        if (Shield >= amount)
+        {
+            TakeShieldDamage(amount);
+            return;
+        }
+
+        if (Shield > 0)
+        {
+            int remainder = amount - Shield;
+
+            TakeShieldDamage(Shield);
+            TakeHealthDamage(remainder);
+
+            return;
+        }
+
+        TakeHealthDamage(amount);
+    }
+
+    private void GiveShield(int amount)
+    {
+        Shield = Math.Clamp(Shield + amount, 0, 100);
+    }
+
+    private void TakeShieldDamage(int amount)
+    {
+        Shield = Math.Clamp(Shield - amount, 0, 100);
+    }
+
+    private void GiveHealth(int amount)
+    {
+        Health = Math.Clamp(Health + amount, 0, 100);
+    }
+
+    private void TakeHealthDamage(int amount)
+    {
+        Health = Math.Clamp(Health - amount, 0, 100);
+    }
+
+    public override void OnCollision(SpriteCollisionContext context)
+    {
+        if (context.Sprite is Bullet bullet && bullet.Owner is not Player)
+        {
+            TakeDamage(bullet.Damage);
+        }
+
+        if (context.Sprite is EnemyShip enemyShip)
+        {
+            TakeDamage(enemyShip.CrashDamage);
+        }
+
+        if (context.Sprite is Shields)
+        {
+            GiveShield(20);
+        }
+
+        if (context.Sprite is Health)
+        {
+            GiveHealth(10);
+        }
+    }
 }