From 092d01dcaeac8ce9a75f8ae0d32bc070269b52e0 Mon Sep 17 00:00:00 2001
From: dnesov <contact.dnesov@gmail.com>
Date: Mon, 25 Sep 2023 18:54:17 +0200
Subject: [PATCH] Update test game to showcase camera system.

---
 DaggerFramework/Source/Utils/MathUtils.cs | 10 ++++++++
 TestGame/TestGame.cs                      |  2 ++
 TestGame/TestPlayer.cs                    | 26 ++++++++++----------
 TestGame/World.cs                         | 30 +++++++++++++++++++++++
 4 files changed, 55 insertions(+), 13 deletions(-)
 create mode 100644 TestGame/World.cs

diff --git a/DaggerFramework/Source/Utils/MathUtils.cs b/DaggerFramework/Source/Utils/MathUtils.cs
index 15b777a..9530994 100644
--- a/DaggerFramework/Source/Utils/MathUtils.cs
+++ b/DaggerFramework/Source/Utils/MathUtils.cs
@@ -25,6 +25,14 @@ namespace DaggerFramework
             return new Vector2(x, y);
         }
 
+        public static Vector2 RandomVector2(Vector2 min, Vector2 max)
+        {
+            var x = _random.NextDouble(min.X, max.X);
+            var y = _random.NextDouble(min.Y, max.Y);
+
+            return new Vector2((float)x, (float)y);
+        }
+
         public static float EaseOutBack(float x)
         {
             var c1 = 1.70158f;
@@ -43,5 +51,7 @@ namespace DaggerFramework
             ? 1
             : (float)Math.Pow(2, -10 * x) * (float)Math.Sin((x * 10 - 0.75f) * c4) + 1;
         }
+
+        private static LehmerRandom _random = new();
     }
 }
\ No newline at end of file
diff --git a/TestGame/TestGame.cs b/TestGame/TestGame.cs
index f619b7e..d92ba2f 100644
--- a/TestGame/TestGame.cs
+++ b/TestGame/TestGame.cs
@@ -62,6 +62,8 @@ public class TestGame : Game
 
         _scene.AddLayer("World", _worldLayer);
         _scene.AddLayer("UI", _uiLayer);
+
+        _worldLayer.AddEntity(new World());
         _worldLayer.AddEntity(new TestPlayer());
 
         _scene.Start();
diff --git a/TestGame/TestPlayer.cs b/TestGame/TestPlayer.cs
index 4926ed3..8e24769 100644
--- a/TestGame/TestPlayer.cs
+++ b/TestGame/TestPlayer.cs
@@ -10,29 +10,29 @@ public class TestPlayer : RectangleShape2d
         Color = Color.Cyan;
         _logger.Echo("OnStart");
 
-        // _camera = new Camera2d()
-        // {
-        //     Current = true,
-        // };
+        _camera = new Camera2d()
+        {
+            Current = true,
+        };
 
-        // Layer.AddEntity(_camera);
+        Layer.AddEntity(_camera);
     }
 
     protected override void OnUpdate(double dt)
     {
         base.OnUpdate(dt);
 
-        // var sprinting = Input.IsActionDown("sprint");
-        // _speed = sprinting ? 400f : 200f;
+        var sprinting = Input.IsActionDown("sprint");
+        _speed = sprinting ? 400f : 200f;
 
-        // var velocity = Input.GetInputDirection("left", "right", "up", "down") * _speed;
-        // Position += velocity * (float)dt;
+        var velocity = Input.GetInputDirection("left", "right", "up", "down") * _speed;
+        Position += velocity * (float)dt;
 
-        // _camera.Position = MathUtils.LerpVector2(_camera.Position, Position, dt * 5f);
+        _camera.Position = MathUtils.LerpVector2(_camera.Position, Position, dt * 5f);
 
-        var mousePos = Input.GetMousePosition();
-        Position = MathUtils.LerpVector2(Position, mousePos, dt * 5f);
-        Rotation += (float)dt * 100f;
+        // var mousePos = Input.GetMousePosition();
+        // Position = MathUtils.LerpVector2(Position, mousePos, dt * 5f);
+        // Rotation += (float)dt * 100f;
     }
 
     private Logger _logger = new(nameof(TestPlayer));
diff --git a/TestGame/World.cs b/TestGame/World.cs
new file mode 100644
index 0000000..af4426b
--- /dev/null
+++ b/TestGame/World.cs
@@ -0,0 +1,30 @@
+using System.Numerics;
+using DaggerFramework;
+using DaggerFramework.Rendering;
+using DaggerFramework.SceneGraph;
+
+public class World : Drawable2d
+{
+    protected override void OnStart()
+    {
+        base.OnStart();
+
+        _randomPositions = new Vector2[_rectangleAmount];
+        for (int i = 0; i < _rectangleAmount - 1; i++)
+        {
+            _randomPositions[i] = MathUtils.RandomVector2(Position, Vector2.One * 2048f);
+        }
+    }
+    public override void OnDraw(Renderer renderer)
+    {
+        for (int i = 0; i < _rectangleAmount; i++)
+        {
+            renderer.SetTransform(_randomPositions[i], PivotOffset, 0);
+            renderer.DrawRectangle(Vector2.One * 16f, _rectangleColor);
+        }
+    }
+
+    private Color _rectangleColor = new Color(0.25f, 0.25f, 0.25f, 1.0f);
+    private int _rectangleAmount = 6000;
+    private Vector2[] _randomPositions;
+}
\ No newline at end of file