Add Urho2D particle sample (Lua and AngelScript).

Bin/Data/LuaScripts/25_Urho2DParticle.lua

@@ -0,0 +1,93 @@
+-- Urho2D spriteexample.
+-- This sample demonstrates:
+--     - Creating a 2D scene with particle
+--     - Displaying the scene using the Renderer subsystem
+--     - Handling keyboard to move and zoom 2D camera
+require "LuaScripts/Utilities/Sample"
+
+local scene_ = nil
+local cameraNode = nil
+local particleNode = nil
+
+function Start()
+    -- Execute the common startup for samples
+    SampleStart()
+
+    -- Set mouse visible
+    input.mouseVisible = true
+
+    -- Create the scene content
+    CreateScene()
+
+    -- Create the UI content
+    CreateInstructions()
+
+    -- Setup the viewport for displaying the scene
+    SetupViewport()
+
+    -- Hook up to the frame update events
+    SubscribeToEvents()
+end
+
+function CreateScene()
+    scene_ = Scene()
+    -- Create the Octree component to the scene. This is required before adding any drawable components, or else nothing will
+    -- show up. The default octree volume will be from (-1000, -1000, -1000) to (1000, 1000, 1000) in world coordinates it
+    -- is also legal to place objects outside the volume but their visibility can then not be checked in a hierarchically
+    -- optimizing manner
+    scene_:CreateComponent("Octree")
+
+    -- Create a scene node for the camera, which we will move around
+    -- The camera will use default settings (1000 far clip distance, 45 degrees FOV, set aspect ratio automatically)
+    cameraNode = scene_:CreateChild("Camera")
+    -- Set an initial position for the camera scene node above the plane
+    cameraNode.position = Vector3(0.0, 0.0, -10.0)
+    local camera = cameraNode:CreateComponent("Camera")
+    camera.orthographic = true
+
+    local width = graphics.width
+    local height = graphics.height
+    camera:SetOrthoSize(Vector2(width, height))
+
+    local particleModel = cache:GetResource("ParticleModel2D", "Urho2D/LavaFlow.plist")
+    if particleModel == nil then
+        return
+    end
+
+    particleNode = scene_:CreateChild("ParticleEmitter2D")
+    local particleEmitter = particleNode:CreateComponent("ParticleEmitter2D")
+    particleEmitter.model = particleModel
+
+end
+
+function CreateInstructions()
+    -- Construct new Text object, set string to display and font to use
+    local instructionText = ui.root:CreateChild("Text")
+    instructionText:SetText("Use mouse to move the particle.")
+    instructionText:SetFont(cache:GetResource("Font", "Fonts/Anonymous Pro.ttf"), 15)
+
+    -- Position the text relative to the screen center
+    instructionText.horizontalAlignment = HA_CENTER
+    instructionText.verticalAlignment = VA_CENTER
+    instructionText:SetPosition(0, ui.root.height / 4)
+end
+
+function SetupViewport()
+    -- Set up a viewport to the Renderer subsystem so that the 3D scene can be seen. We need to define the scene and the camera
+    -- at minimum. Additionally we could configure the viewport screen size and the rendering path (eg. forward / deferred) to
+    -- use, but now we just use full screen and default render path configured in the engine command line options
+    local viewport = Viewport:new(scene_, cameraNode:GetComponent("Camera"))
+    renderer:SetViewport(0, viewport)
+end
+
+function SubscribeToEvents()
+    SubscribeToEvent("MouseMove", "HandleMouseMove")
+end
+
+function HandleMouseMove(eventType, eventData)
+    if particleNode ~= nil then
+        local x = eventData:GetInt("x")
+        local y = eventData:GetInt("y")
+        particleNode.position = Vector3(x - graphics.width * 0.5, -y + graphics.height * 0.5, 0.0)
+    end
+end

Bin/Data/Scripts/25_Urho2DParticle.as

@@ -0,0 +1,103 @@
+// Static 3D scene example.
+// This sample demonstrates:
+//     - Creating a 2D scene with particle
+//     - Displaying the scene using the Renderer subsystem
+//     - Handling keyboard to move and zoom 2D camera
+
+#include "Scripts/Utilities/Sample.as"
+
+Scene@ scene_;
+Node@ cameraNode;
+Node@ particleNode;
+
+void Start()
+{
+    // Execute the common startup for samples
+    SampleStart();
+
+    // Set mouse visible
+    input.mouseVisible = true;
+
+    // Create the scene content
+    CreateScene();
+
+    // Create the UI content
+    CreateInstructions();
+
+    // Setup the viewport for displaying the scene
+    SetupViewport();
+
+    // Hook up to the frame update events
+    SubscribeToEvents();
+}
+
+void CreateScene()
+{
+    scene_ = Scene();
+
+    // Create the Octree component to the scene. This is required before adding any drawable components, or else nothing will
+    // show up. The default octree volume will be from (-1000, -1000, -1000) to (1000, 1000, 1000) in world coordinates; it
+    // is also legal to place objects outside the volume but their visibility can then not be checked in a hierarchically
+    // optimizing manner
+    scene_.CreateComponent("Octree");
+
+    // Create a scene node for the camera, which we will move around
+    // The camera will use default settings (1000 far clip distance, 45 degrees FOV, set aspect ratio automatically)
+    cameraNode = scene_.CreateChild("Camera");
+    // Set an initial position for the camera scene node above the plane
+    cameraNode.position = Vector3(0.0f, 0.0f, -10.0f);
+
+    Camera@ camera = cameraNode.CreateComponent("Camera");
+    camera.orthographic = true;
+
+    uint width = graphics.width;
+    uint height = graphics.height;
+    camera.SetOrthoSize(Vector2(width, height));
+
+    ParticleModel2D@ particleModel = cache.GetResource("ParticleModel2D", "Urho2D/LavaFlow.plist");
+    if (particleModel is null)
+        return;
+
+    particleNode = scene_.CreateChild("ParticleEmitter2D");
+
+    ParticleEmitter2D@ particleEmitter = particleNode.CreateComponent("ParticleEmitter2D");
+    particleEmitter.model = particleModel;
+}
+
+void CreateInstructions()
+{
+    // Construct new Text object, set string to display and font to use
+    Text@ instructionText = ui.root.CreateChild("Text");
+    instructionText.text = "Use mouse to move the particle.";
+    instructionText.SetFont(cache.GetResource("Font", "Fonts/Anonymous Pro.ttf"), 15);
+
+    // Position the text relative to the screen center
+    instructionText.horizontalAlignment = HA_CENTER;
+    instructionText.verticalAlignment = VA_CENTER;
+    instructionText.SetPosition(0, ui.root.height / 4);
+}
+
+void SetupViewport()
+{
+    // Set up a viewport to the Renderer subsystem so that the 3D scene can be seen. We need to define the scene and the camera
+    // at minimum. Additionally we could configure the viewport screen size and the rendering path (eg. forward / deferred) to
+    // use, but now we just use full screen and default render path configured in the engine command line options
+    Viewport@ viewport = Viewport(scene_, cameraNode.GetComponent("Camera"));
+    renderer.viewports[0] = viewport;
+}
+
+void SubscribeToEvents()
+{
+    SubscribeToEvent("MouseMove", "HandleMouseMove");
+}
+
+void HandleMouseMove(StringHash eventType, VariantMap& eventData)
+{
+    if (particleNode !is null)
+    {
+        int x = eventData["x"].GetInt();
+        int y = eventData["y"].GetInt();
+        particleNode.position = Vector3(x - graphics.width * 0.5f, -y + graphics.height * 0.5f, 0.0);
+    }
+}
+

Bin/Data/Urho2D/LavaFlow.plist

@@ -95,6 +95,6 @@
 	<key>tangentialAcceleration</key>
 	<real>0.0</real>
 	<key>textureFileName</key>
-	<string>Textures/LavaFlow.png</string>
+	<string>Urho2D/LavaFlow.png</string>
 </dict>
 </plist>