Create HelloQuad.cs

HelloQuad/HelloQuad.cs

@@ -0,0 +1,149 @@
+using System.Linq.Expressions;
+using AtomicEngine;
+
+public class Program
+{
+    public static void Main(string[] args)
+    {
+        Application.Run<HelloQuad>(args);
+    }
+}
+
+public class HelloQuad : AppDelegate
+{
+    // Scene reference kept here so it won't be collected by the GC
+    Scene scene;
+    Camera camera;
+    Graphics graphics;
+    Viewport viewport;
+
+    Texture2D texture;
+    VertexBuffer vertexBuffer;
+
+    public override void Start()
+    {
+        Renderer renderer = AtomicNET.GetSubsystem<Renderer>();
+        graphics = AtomicNET.GetSubsystem<Graphics>();
+        viewport = renderer.GetViewport(0);
+        
+        scene = new Scene();
+        scene.CreateComponent<Octree>();
+        viewport.Scene = scene;
+
+        camera = scene.CreateChild("Camera").CreateComponent<Camera>();
+        camera.Node.Position = new Vector3(0.5f, 0.5f, 0.0f);
+        camera.Orthographic = true;
+        camera.OrthoSize = 1.5f;
+        viewport.Camera = camera;
+
+        // We create a XML from string so this code is fully self-contained
+        XMLFile xml = new XMLFile();
+        xml.FromString("<renderpath><command type=\"sendevent\"/></renderpath>");
+
+        RenderPath renderpath = new RenderPath();
+        renderpath.Append(xml);
+        viewport.SetRenderPath(renderpath);
+        SubscribeToEvent("RenderPathEvent", (u, e) => { Render(); });
+
+        ShaderVariation pixelShader = graphics.GetShader(ShaderType.PS, "Basic", "DIFFMAP");
+        ShaderVariation vertexShader = graphics.GetShader(ShaderType.VS, "Basic", "DIFFMAP");
+        graphics.SetShaders(vertexShader, pixelShader);
+        graphics.SetShaderParameter(ShaderParams.VSP_MODEL, Matrix3x4.IDENTITY);
+        graphics.SetShaderParameter(ShaderParams.PSP_MATDIFFCOLOR, Color.White);
+        graphics.SetCullMode(CullMode.CULL_NONE);
+
+        // We create a texture from literal data so this code is fully self-contained
+        Image image = new Image();
+        image.SetSize(16, 16, 3);
+
+        Color z = Color.Yellow;
+        Color M = Color.Blue;
+        Color k = Color.Black;
+
+        Color[,] imageData =
+        {
+            { k,k,k,k,k,k,k,k,k,k,k,k,k,k,k,k },
+            { k,z,z,z,z,z,z,z,z,z,z,z,z,z,M,k },
+            { k,z,z,z,z,z,z,M,M,z,z,z,z,z,z,k },
+            { k,z,z,z,z,z,z,M,M,z,z,z,z,z,z,k },
+            { k,z,z,z,z,z,M,z,z,M,z,z,z,z,z,k },
+            { k,z,z,z,z,z,M,z,z,M,z,z,z,z,z,k },
+            { k,z,z,z,z,M,z,z,z,z,M,z,z,z,z,k },
+            { k,z,z,z,z,M,z,z,z,z,M,z,z,z,z,k },
+            { k,z,z,z,M,z,z,z,z,z,z,M,z,z,z,k },
+            { k,z,z,z,M,z,z,z,z,z,z,M,z,z,z,k },
+            { k,z,z,M,M,M,M,M,M,M,M,M,M,z,z,k },
+            { k,z,z,M,z,z,z,z,z,z,z,z,M,z,z,k },
+            { k,z,M,z,z,z,z,z,z,z,z,z,z,M,z,k },
+            { k,z,M,z,z,z,z,z,z,z,z,z,z,M,z,k },
+            { k,z,z,z,z,z,z,z,z,z,z,z,z,z,z,k },
+            { k,k,k,k,k,k,k,k,k,k,k,k,k,k,k,k },
+        };
+
+        for (int x = 0; x < 16; x++)
+        {
+            for (int y = 0; y < 16; y++)
+            {
+                image.SetPixel(x,15-y,imageData[y,x]);
+            }
+        }
+
+        texture = new Texture2D();
+        texture.SetData(image);
+        
+        vertexBuffer = new VertexBuffer();
+        vertexBuffer.SetSize(6, Constants.MASK_POSITION | Constants.MASK_TEXCOORD1, true);
+    }
+
+    unsafe void Render()
+    {
+        System.IntPtr vertexData = vertexBuffer.Lock(0, 6, true);
+        {
+            float* vout = (float*)vertexData;
+
+            *vout++ = 0;
+            *vout++ = 0;
+            *vout++ = 0;
+            *vout++ = 0;
+            *vout++ = 0;
+
+            *vout++ = 0;
+            *vout++ = 1;
+            *vout++ = 0;
+            *vout++ = 0;
+            *vout++ = 1;
+
+            *vout++ = 1;
+            *vout++ = 1;
+            *vout++ = 0;
+            *vout++ = 1;
+            *vout++ = 1;
+
+            *vout++ = 0;
+            *vout++ = 0;
+            *vout++ = 0;
+            *vout++ = 0;
+            *vout++ = 0;
+
+            *vout++ = 1;
+            *vout++ = 1;
+            *vout++ = 0;
+            *vout++ = 1;
+            *vout++ = 1;
+
+            *vout++ = 1;
+            *vout++ = 0;
+            *vout++ = 0;
+            *vout++ = 1;
+            *vout++ = 0;
+
+        }
+        vertexBuffer.Unlock();
+        
+        graphics.Clear(0x1, Color.White);
+        viewport.View.SetCameraShaderParameters(camera);
+        graphics.SetTexture((uint)TextureUnit.TU_DIFFUSE, texture);
+        graphics.SetVertexBuffer(vertexBuffer);
+        graphics.Draw(PrimitiveType.TRIANGLE_LIST, 0, 6);
+    }
+}