DrawLine part of RenderHelper

DepthsBelow/DepthsBelow/Core.cs

@@ -16,7 +16,7 @@ namespace DepthsBelow
 	/// </summary>
 	public class Core : Microsoft.Xna.Framework.Game
 	{
-		GraphicsDeviceManager graphics;
+		public static GraphicsDeviceManager GraphicsDeviceManager;
 		SpriteBatch spriteBatch;
 
 		public Camera Camera;
@@ -26,18 +26,20 @@ namespace DepthsBelow
         public List<SmallEnemy> Swarm;
 		public static Map Map;
 
+		public SmallEnemy TestMonster;
+
 		public Core()
 		{
-			graphics = new GraphicsDeviceManager(this);
+			GraphicsDeviceManager = new GraphicsDeviceManager(this);
 			Content.RootDirectory = "Content";
 
-			graphics.PreferredBackBufferWidth = 1280;
-			graphics.PreferredBackBufferHeight = 720;
-			graphics.IsFullScreen = false;
+			GraphicsDeviceManager.PreferredBackBufferWidth = 1280;
+			GraphicsDeviceManager.PreferredBackBufferHeight = 720;
+			GraphicsDeviceManager.IsFullScreen = false;
 
 			//graphics.SynchronizeWithVerticalRetrace = false;
 			this.IsFixedTimeStep = false;
-			graphics.ApplyChanges();
+			GraphicsDeviceManager.ApplyChanges();
 
 			this.IsMouseVisible = true;
 		}
@@ -55,6 +57,8 @@ namespace DepthsBelow
 			Squad = new List<Soldier>();
             Swarm = new List<SmallEnemy>();
 
+			TestMonster = new SmallEnemy(this, ref Swarm);
+
 			base.Initialize();
 		}
 
@@ -144,6 +148,8 @@ namespace DepthsBelow
 			// Draw mouse input visuals
 			MouseInput.Draw(spriteBatch);
 
+			TestMonster.GetComponent<Component.SpriteRenderer>().Draw(spriteBatch);
+
 			spriteBatch.End();
 
 			base.Draw(gameTime);

DepthsBelow/DepthsBelow/DepthsBelow.csproj

@@ -135,6 +135,7 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Component\SpriteRenderer.cs" />
+    <Compile Include="RenderHelpers.cs" />
     <Compile Include="SmallEnemy.cs" />
     <Compile Include="Soldier.cs" />
     <Compile Include="Component\PixelTransform.cs" />

DepthsBelow/DepthsBelow/MouseInput.cs

@@ -144,7 +144,7 @@ namespace DepthsBelow
                         }
                         else
                         {
-                            */unit.GetComponent<Component.Transform>().World.Rotation = (float)Math.Atan2(mouseWorldPos.Y - unit.Transform.World.Y, mouseWorldPos.X - unit.Transform.World.X);/*
+                            */unit.GetComponent<Component.Transform>().World.Rotation = (float)Math.Atan2(mouseWorldPos.Y - unit.Transform.World.Y - unit.Transform.World.Origin.Y, mouseWorldPos.X - unit.Transform.World.X - unit.Transform.World.Origin.X);/*
                         }*/
                         //Console.WriteLine(angle);
                         //unit.GetComponent<Component.Transform>().World.Rotation = angle;
@@ -170,21 +170,10 @@ namespace DepthsBelow
 
             if (checkingDirection == true) 
             {
-                Texture2D blank = new Texture2D(core.GraphicsDevice, 1, 1, false, SurfaceFormat.Color);
-                blank.SetData(new[] { Color.White });
-                DrawLine(spriteBatch, blank, 2, Color.White, directionStart, directionNow);
+                RenderHelpers.DrawLine(spriteBatch, Color.White, 2, directionStart, directionNow);
             }
 
 		}
 
-        void DrawLine(SpriteBatch batch, Texture2D blank, float width, Color color, Vector2 point1, Vector2 point2)
-        {
-            float angle = (float)Math.Atan2(point2.Y - point1.Y, point2.X - point1.X);
-            float length = Vector2.Distance(point1, point2);
-
-            batch.Draw(blank, point1, null, color,
-                       angle, Vector2.Zero, new Vector2(length, width),
-                       SpriteEffects.None, 0);
-        }
 	}
 }

DepthsBelow/DepthsBelow/RenderHelpers.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Graphics;
+
+namespace DepthsBelow
+{
+	static class RenderHelpers
+	{
+		static Texture2D blank;
+
+		public static void DrawLine(SpriteBatch batch, Color color, float width, Vector2 start, Vector2 end)
+		{
+			if (blank == null)
+			{
+				blank = new Texture2D(Core.GraphicsDeviceManager.GraphicsDevice, 1, 1, false, SurfaceFormat.Color);
+				blank.SetData(new[] { color });
+			}
+
+			float angle = (float)Math.Atan2(end.Y - start.Y, end.X - start.X);
+			float length = Vector2.Distance(start, end);
+
+			batch.Draw(blank, start, null, color,
+					   angle, Vector2.Zero, new Vector2(length, width),
+					   SpriteEffects.None, 0);
+		}
+	}
+}