Added a perftest

perftest/.gitignore

@@ -26,3 +26,6 @@ buildNumber.properties
 .factorypath
 .project
 .vscode/
+
+# Ignore logs, these came from an error in the VM
+*.log

perftest/pom.xml

@@ -35,6 +35,11 @@
       <version>${junit.version}</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>nz.ac.massey.javaecs</groupId>
+      <artifactId>javaecs</artifactId>
+      <version>0.9.2-PRERELEASE</version>
+  </dependency>
   </dependencies>
   <build>
     <plugins>

perftest/src/main/java/nz/ac/massey/javaecs/examples/App.java

@@ -17,7 +17,40 @@ public final class App {
      * @param args The arguments of the program.
      */
     public static void main(String[] args) {
-        Engine engine = new Engine();
+        int nEntities = 1_000_000;
+        Engine engine = new Engine(nEntities);
+
+        engine.registerComponent(ComflabulationComponent.class);
+        engine.registerComponent(DirectionComponent.class);
+        engine.registerComponent(PositionComponent.class);
+
+        ComflabSystem comflabSystem = new ComflabSystem(engine);
+        engine.registerSystem(ComflabSystem.class, comflabSystem);
+
+        MovementSystem movementSystem = new MovementSystem(engine);
+        engine.registerSystem(MovementSystem.class, movementSystem);
+        double startTime = System.nanoTime();
+        for (int i = 0; i < nEntities; i++) {
+            Entity entity = engine.createEntity();
+            engine.addComponent(entity, PositionComponent.class, new PositionComponent());
+            engine.addComponent(entity, DirectionComponent.class, new DirectionComponent());
+
+            if (i % 2 != 0){
+                engine.addComponent(entity, ComflabulationComponent.class, new ComflabulationComponent());
+            }
+        }
+        double endTime = System.nanoTime();
+
+        System.out.println("Entity creation Time taken: " + (endTime - startTime) / 1e6+ " ms " + "("+ (endTime - startTime) / 1e9 + "seconds )");
+        
+        Float dt = 1.0f/60.0f;
+        startTime = System.nanoTime();
+        movementSystem.update(dt);
+        comflabSystem.update(dt);
+        endTime = System.nanoTime();
+
+        System.out.println("Time taken: " + (endTime - startTime) / 1e6+ " ms " + "("+ (endTime - startTime) / 1e9 + "seconds )");
+
         System.out.println("Hello World!");
     }
 }

perftest/src/main/java/nz/ac/massey/javaecs/examples/Components/ComflabulationComponent.java

@@ -0,0 +1,22 @@
+package nz.ac.massey.javaecs.examples.Components;
+
+public class ComflabulationComponent {
+    public Float thingy;
+    public Integer dingy;
+    public boolean mingy;
+    public String stringy;
+
+    public ComflabulationComponent(Float thingy, Integer dingy, boolean mingy, String stringy){
+        this.thingy = thingy;
+        this.dingy = dingy;
+        this.mingy = mingy;
+        this.stringy = stringy;
+    }
+
+    public ComflabulationComponent(){
+        thingy =  0.0f;
+        dingy = 0;
+        mingy = false;
+        stringy = "";
+    }
+}

perftest/src/main/java/nz/ac/massey/javaecs/examples/Components/DirectionComponent.java

@@ -0,0 +1,16 @@
+package nz.ac.massey.javaecs.examples.Components;
+
+public class DirectionComponent {
+    public Float x;
+    public Float y;
+
+    public DirectionComponent(Float x, Float y){
+        this.x = x;
+        this.y = y;
+    }
+
+    public DirectionComponent(){
+        x = 0.0f;
+        y = 0.0f;
+    }
+}

perftest/src/main/java/nz/ac/massey/javaecs/examples/Components/PositionComponent.java

@@ -0,0 +1,16 @@
+package nz.ac.massey.javaecs.examples.Components;
+
+public class PositionComponent {
+    public Float x;
+    public Float y;
+
+    public PositionComponent(Float x, Float y){
+        this.x = x;
+        this.y = y;
+    }
+
+    public PositionComponent(){
+        x = 0.0f;
+        y = 0.0f;
+    }
+}

perftest/src/main/java/nz/ac/massey/javaecs/examples/Systems/ComflabSystem.java

@@ -0,0 +1,37 @@
+package nz.ac.massey.javaecs.examples.Systems;
+
+import java.util.BitSet;
+
+import nz.ac.massey.javaecs.ECSSystem;
+import nz.ac.massey.javaecs.Engine;
+import nz.ac.massey.javaecs.Entity;
+import nz.ac.massey.javaecs.examples.Components.ComflabulationComponent;
+
+public class ComflabSystem extends ECSSystem  {
+    Engine ecs;
+
+    public ComflabSystem(Engine ecs){
+        this.ecs = ecs;
+        registrationSet = new BitSet();
+        registrationSet.set(ecs.getComponentIndex(ComflabulationComponent.class));
+    }
+
+    @Override
+    public void init() {
+        // TODO Auto-generated method stub
+        
+    }
+
+    @Override
+    public void update() {        
+    }
+
+    public void update(Float dt) {
+        for (Entity entity : entities) {
+            ComflabulationComponent comflab = (ComflabulationComponent)ecs.getComponentData(entity, ComflabulationComponent.class);
+            comflab.thingy *= 1.000001f;
+            comflab.mingy = !comflab.mingy;
+            comflab.dingy++;
+        } 
+    }
+}

perftest/src/main/java/nz/ac/massey/javaecs/examples/Systems/MovementSystem.java

@@ -0,0 +1,43 @@
+package nz.ac.massey.javaecs.examples.Systems;
+
+import java.lang.management.ThreadInfo;
+import java.util.BitSet;
+
+import nz.ac.massey.javaecs.ECSSystem;
+import nz.ac.massey.javaecs.Engine;
+import nz.ac.massey.javaecs.Entity;
+import nz.ac.massey.javaecs.examples.Components.DirectionComponent;
+import nz.ac.massey.javaecs.examples.Components.PositionComponent;
+
+public class MovementSystem extends ECSSystem {
+    Engine ecs;
+
+    public MovementSystem(Engine ecs){
+        this.ecs = ecs;
+        registrationSet = new BitSet();
+        registrationSet.set(ecs.getComponentIndex(PositionComponent.class));
+        registrationSet.set(ecs.getComponentIndex(DirectionComponent.class));
+    }
+
+    @Override
+    public void init() {
+        // TODO Auto-generated method stub
+        
+    }
+
+    @Override
+    public void update() {        
+    }
+
+    public void update(Float dt) {
+        for (Entity entity : entities) {
+            PositionComponent position = (PositionComponent)ecs.getComponentData(entity, PositionComponent.class);
+            DirectionComponent direction = (DirectionComponent)ecs.getComponentData(entity, DirectionComponent.class);
+            position.x += direction.x * dt;
+            position.y += direction.y * dt;
+        }
+        
+        
+    }
+    
+}