Camera zoom + package gui

src/engine/Engine.java

@@ -1,5 +1,6 @@
 package engine;
 
+import engine.gui.UIElement;
 import engine.input.*;
 import engine.math.*;
 import engine.object.*;
@@ -8,7 +9,6 @@ import engine.sound.*;
 import org.lwjgl.glfw.GLFWFramebufferSizeCallback;
 import org.lwjgl.glfw.GLFWVidMode;
 import org.lwjgl.opengl.GL;
-import org.lwjgl.system.CallbackI;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -22,6 +22,7 @@ public class Engine {
     private static long window;
 
     private final List<ObjectGl> objectsGl;
+    public final List<UIElement> uiElements;
 
     private boolean running;
 
@@ -30,6 +31,7 @@ public class Engine {
 
     private float viewXPos;
     public Vector3f transformationView;
+    private final Camera camera;
 
     /**
      * Create the engine and initial attributes use .init() to start the engine
@@ -37,9 +39,10 @@ public class Engine {
     public Engine(int width, int height, float aspectRatio) {
         this.running = false;
         this.objectsGl = new ArrayList<>();
+        this.uiElements = new ArrayList<>();
         this.width = width;
         this.height = height;
-        ObjectGl.projection = Matrix4f.orthographic(-1000, 1000, -1000 * aspectRatio, 1000 * aspectRatio, 0.1f, 100.0f);
+        this.camera = new Camera(1000, new Vector3f(4.0f, 3.0f), this);
         ObjectGl.view = Matrix4f.translate(new Vector3f(0.0f, 0.0f, 1.0f));
         this.viewXPos = 0.0f;
         this.transformationView = new Vector3f();
@@ -128,11 +131,15 @@ public class Engine {
      * @param obj ObjectGl to render
      */
     public void add_objectGl(ObjectGl obj) {
-        objectsGl.add(obj);
+        this.objectsGl.add(obj);
     }
 
     public void remove_objectGl(ObjectGl obj) {
-        objectsGl.remove(obj);
+        this.objectsGl.remove(obj);
+    }
+
+    public void add_uiElement(UIElement uiElement) {
+        this.uiElements.add(uiElement);
     }
 
     public void translateView(Vector3f vec){
@@ -173,6 +180,10 @@ public class Engine {
         return window;
     }
 
+    public Camera getCamera(){
+        return this.camera;
+    }
+
     public void setWindow(long window) {
         Engine.window = window;
     }
@@ -237,9 +248,9 @@ public class Engine {
         texTest.translate(new Vector3f(-1000.0f, (float) (-1000.0f * (3.0 / 4.0f) + 100.0f)));
 
         UIElement fpsCounter = new UIElement(texTest.getObj(), engine);
+        engine.add_uiElement(fpsCounter); // Pour être atteint par les modification du frustum
 
         texTest.linkToUIElement(fpsCounter);
-
         long timer = System.currentTimeMillis();
         long lastFrame;
         int frame = 0;
@@ -283,6 +294,8 @@ public class Engine {
 
             fpsCounter.update();
 
+            engine.camera.zoom(1.001f);
+
             /*
              ********************
              * essential part v *
@@ -296,7 +309,7 @@ public class Engine {
             if (System.currentTimeMillis() - timer > 1000) {
                 timer += 1000;
                 System.out.println("FPS: " + frame);
-                texTest.setNewText("FPS " + frame);
+                texTest.setNewText("FPS: " + frame);
                 frame = 0;
             }
 

src/engine/gui/UIElement.java

@@ -1,11 +1,11 @@
-package engine.object;
+package engine.gui;
 
 import engine.Engine;
 import engine.math.Vector3f;
+import engine.object.ObjectGl;
 
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Objects;
 
 public class UIElement {
 

src/engine/gui/UIElementText.java

@@ -0,0 +1,13 @@
+package engine.gui;
+
+import engine.Engine;
+import engine.gui.UIElement;
+import engine.object.ObjectGl;
+
+import java.util.List;
+
+public class UIElementText extends UIElement {
+    public UIElementText(List<ObjectGl> objs, Engine engine) {
+        super(objs, engine);
+    }
+}

src/engine/object/Camera.java

@@ -0,0 +1,27 @@
+package engine.object;
+
+import engine.Engine;
+import engine.math.Matrix4f;
+import engine.math.Vector3f;
+
+public class Camera {
+
+    private float dimension;
+    private final Vector3f aspectRatio;
+    private final Engine engine;
+
+
+    public Camera(float dimension, Vector3f aspectRatio, Engine engine){
+        this.dimension = dimension;
+        this.aspectRatio = aspectRatio;
+        this.engine = engine;
+        float ar = aspectRatio.y / aspectRatio.x;
+        ObjectGl.projection = Matrix4f.orthographic(-dimension, dimension, -dimension * ar, dimension * ar, 0.1f, 100.0f);
+    }
+
+    public void zoom(float zoomFactor){
+        this.dimension *= zoomFactor;
+        float ar = aspectRatio.y / aspectRatio.x;
+        ObjectGl.projection = Matrix4f.orthographic(-dimension, dimension, -dimension * ar, dimension * ar, 0.1f, 100.0f);
+    }
+}

src/engine/object/Text.java

@@ -1,6 +1,7 @@
 package engine.object;
 
 import engine.Engine;
+import engine.gui.UIElement;
 import engine.math.Vector3f;
 
 import java.util.ArrayList;