Doc pour Engine + Introduction Tracking Tore

src/engine/Engine.java

@@ -1,11 +1,10 @@
 package engine;
 
+import engine.camera.*;
 import engine.gui.UIDummy;
-import engine.gui.UIElementText;
 import engine.input.*;
 import engine.math.*;
 import engine.object.*;
-import engine.sound.*;
 
 import org.lwjgl.glfw.GLFWFramebufferSizeCallback;
 import org.lwjgl.glfw.GLFWVidMode;
@@ -30,14 +29,21 @@ public class Engine {
     private final int width;
     private final int height;
 
-    public float viewXPos;
-    public float viewYPos;
-    public float viewZPos;
-    public Vector3f transformationView;
-    public final Camera camera;
+    private float viewXPos;
+    private float viewYPos;
+    private Vector3f transformationView;
+    private final Camera camera;
+
+    private TrackingDummy tracking;
+
+    /*
+    Init Method
+     */
 
     /**
      * Create the engine and initial attributes use .init() to start the engine
+     * Initial projection is -1000;1000 in width and -1000*aspectRatio; 1000*aspectRatio
+     * Initial Camera position is (0, 0, -1) //TODO vérifiez
      */
     public Engine(int width, int height, Vector3f aspectRatio) {
         this.running = false;
@@ -45,10 +51,12 @@ public class Engine {
         this.uiElements = new ArrayList<>();
         this.width = width;
         this.height = height;
+        this.viewXPos = 0.0f;
+        this.viewYPos = 0.0f;
         this.camera = new Camera(1000, aspectRatio, this);
         ObjectGl.view = Matrix4f.translate(new Vector3f(0.0f, 0.0f, 1.0f));
-        this.viewXPos = 0.0f;
         this.transformationView = new Vector3f();
+        this.tracking = null;
     }
 
     /**
@@ -103,20 +111,10 @@ public class Engine {
         System.out.println("OpenGL: " + glGetString(GL_VERSION));
     }
 
-    /**
-     *
+    /*
+    RENDER / UPDATE
      */
-    public void update() {
-        glfwPollEvents();
-        // METS A JOUR LA POSITION DES ELEMENTS D'INTERFACE
-        for (UIDummy uiElement : this.uiElements){
-            uiElement.update();
-        }
-    }
 
-    /**
-     *
-     */
     public void render() {
 
         glEnable(GL_SCISSOR_TEST);
@@ -134,42 +132,19 @@ public class Engine {
     }
 
     /**
-     * Add obj to the render queue
-     * @param obj ObjectGl to render
+     *
      */
-    public void add_objectGl(ObjectGl obj) {
-        this.objectsGl.add(obj);
-    }
-
-    public void add_objectsGl(List<ObjectGl> objs) {
-        this.objectsGl.addAll(objs);
-    }
-
-    public void remove_objectGl(ObjectGl obj) {
-        this.objectsGl.remove(obj);
-    }
-
-    public void add_uiElement(UIDummy uiElement) {
-        uiElement.init();
-        this.uiElements.add(uiElement);
-    }
-
-    public void setUIElementZoomFactor(float scaleFactor){
+    public void update() {
+        glfwPollEvents();
+        // METS A JOUR LA POSITION DES ELEMENTS D'INTERFACE
         for (UIDummy uiElement : this.uiElements){
-            uiElement.updateScalingFactor(scaleFactor);
+            uiElement.update();
         }
     }
 
-    public void cameraTrackingObjectGl(ObjectGl obj, float xOffset){
-        Vector3f zangiefTracking = new Vector3f((- obj.getXPos() - this.viewXPos) + xOffset,0.0f ,0.0f);
-        this.translateView(zangiefTracking);
-    }
-
-    public void translateView(Vector3f vec){
-        ObjectGl.view = ObjectGl.view.multiply(Matrix4f.translate(vec));
-        viewXPos += vec.x;
-        this.transformationView = this.transformationView.addXYZ(vec);
-    }
+    /*
+    Window / Viewport Management
+     */
 
     public static void correctViewport(int width, int height){
         int heightViewport, widthViewport, x, y;
@@ -188,30 +163,87 @@ public class Engine {
         glViewport(x, y, widthViewport, heightViewport);
     }
 
-    public boolean isRunning() {
-        return running;
-    }
-
-    public void setRunning(boolean b) {
-        running = b;
-    }
-
     public boolean shouldClose() {
         return glfwWindowShouldClose(getWindow());
     }
 
-    public static long getWindow() {
-        return window;
+    /*
+    ObjectGl Management
+     */
+
+    /**
+     * Add obj to the render queue
+     * @param obj ObjectGl to render
+     */
+    public void add_objectGl(ObjectGl obj) {
+        this.objectsGl.add(obj);
     }
 
-    public Camera getCamera(){
-        return this.camera;
+    public void add_objectsGl(List<ObjectGl> objs) {
+        this.objectsGl.addAll(objs);
     }
 
-    public void setWindow(long window) {
-        Engine.window = window;
+    public void remove_objectGl(ObjectGl obj) {
+        this.objectsGl.remove(obj);
     }
 
+    /*
+    UIElement Management
+     */
+
+    public void add_uiElement(UIDummy uiElement) {
+        uiElement.init();
+        this.uiElements.add(uiElement);
+    }
+
+    public void setUIElementZoomFactor(float scaleFactor){
+        for (UIDummy uiElement : this.uiElements){
+            uiElement.updateScalingFactor(scaleFactor);
+        }
+    }
+
+    /*
+    CAMERA
+     */
+
+    public void translateView(Vector3f vec){
+        ObjectGl.view = ObjectGl.view.multiply(Matrix4f.translate(vec));
+        viewXPos += vec.x;
+        this.transformationView = this.transformationView.addXYZ(vec);
+    }
+
+    /**
+     * Translate la camera pour avoir obj au centre de l'image, comme le cadrage se fait sur le point en haut à gauche
+     * de l'objet un offset peut parfois être nécessaire
+     * @param obj l'objectGl que la camera va suivre
+     * @param xOffset un offSet sur l'axe X
+     */
+    public void cameraTrackingObjectGl(ObjectGl obj, float xOffset){
+        Vector3f trackingVector = new Vector3f((- obj.getXPos() - this.viewXPos) + xOffset,0.0f ,0.0f);
+        this.translateView(trackingVector);
+    }
+
+    public void setCameraTrackingBetweenTwoObjectGl(ObjectGl obj1, ObjectGl obj2, float deadZone){
+        // obj2 est considéré à droite probablement à modifier
+        this.tracking = new TrackingTore(
+                deadZone,
+                obj1,
+                obj2,
+                this);
+    }
+
+    public void cameraTrackingBetweenTwoObjectGl(){
+        if (this.tracking == null) System.out.println("Utilisez setCameraTrackingBetweenTwoObjectGl avant cameraTrackingBetweenTwoObjectGl");
+        else {
+            Vector3f trackingVector = this.tracking.getViewVector();
+            this.translateView(trackingVector);
+        }
+    }
+
+    /*
+    CALLBACK
+     */
+
     /**
      * Est appelé à chaque modification de la taille de la fenêtre, et modifie la taille de la zone de rendu
      * pour quelle corresponde à la taille de la fenêtre
@@ -223,4 +255,40 @@ public class Engine {
         }
     };
 
+    /*
+    GET/SET
+     */
+
+    public boolean getRunning() {
+        return running;
+    }
+
+    public void setRunning(boolean b) {
+        running = b;
+    }
+
+    public float getViewXPos(){
+        return viewXPos;
+    }
+
+    public float getViewYPos(){
+        return viewYPos;
+    }
+
+    public Vector3f getTransformationView() {
+        return transformationView;
+    }
+
+    public Camera getCamera(){
+        return this.camera;
+    }
+
+    public static long getWindow() {
+        return window;
+    }
+
+    public void setWindow(long window) {
+        Engine.window = window;
+    }
+
 }

src/engine/TestEngine.java

@@ -1,23 +1,16 @@
 package engine;
 
 import engine.gui.UIElementText;
-import engine.input.Button;
-import engine.input.GamepadInput;
-import engine.input.InputConst;
-import engine.input.KeyboardInput;
+import engine.input.*;
 import engine.math.Vector3f;
 import engine.object.ObjectGl;
 import engine.object.Sprite;
-import engine.sound.SoundBuffer;
-import engine.sound.SoundListener;
-import engine.sound.SoundManager;
-import engine.sound.SoundSource;
+import engine.sound.*;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import static org.lwjgl.glfw.GLFW.GLFW_JOYSTICK_1;
-import static org.lwjgl.glfw.GLFW.glfwJoystickPresent;
+import static org.lwjgl.glfw.GLFW.*;
 
 public class TestEngine {
 
@@ -60,6 +53,14 @@ public class TestEngine {
         zangief.setShader("shaders/StylishShaders/BasicVert.glsl", "shaders/StylishShaders/FlashFrag.glsl");
         zangief.useTime = true;
 
+        ObjectGl zangief2 = new Sprite(9.0f, 10f, path, null);
+        zangief2.setTextureWrap(58, 0, 62, 84, ObjectGl.DEFAULT);
+        engine.add_objectGl(zangief2);
+        zangief2.translate(new Vector3f(1000.0f, 200.0f, 0.0f));
+        zangief2.flipTextureWrapH();
+
+        engine.setCameraTrackingBetweenTwoObjectGl(zangief, zangief2, 1000.0f);
+
         //Create background
         ObjectGl background = new ObjectGl(0f,1f,1f,10f, pathToBG, null);
         background.setTextureWrap(0,0,621, 224, ObjectGl.DEFAULT);
@@ -73,6 +74,9 @@ public class TestEngine {
         UIElementText uiTextTest = new UIElementText("Boulevard Combattant", 5.0f, 0.0f,1.0f, 25.0f, engine);
         engine.add_uiElement(uiTextTest);
 
+        UIElementText uiTextCoordP1 = new UIElementText("Boulevard Combattant", 7.0f, 0.0f,0.05f, 25.0f, engine);
+        engine.add_uiElement(uiTextCoordP1);
+
 //        Text texTest = new Text("ABCDEFGHIJKLMNOPQRSTUVWYZ",20.0f, 10, engine);
 //        texTest.show();
 //        texTest.translate(new Vector3f(-1000.0f, (float) (-1000.0f * (3.0 / 4.0f) + 100.0f)));
@@ -96,15 +100,19 @@ public class TestEngine {
             gamepad1.inputRefresh();
             List<Integer> listZoomPlus = new ArrayList<>();
             listZoomPlus.add(InputConst.buttonA);
+            List<Integer> listZoomMinusKeyboard = new ArrayList<>();
+            listZoomMinusKeyboard.add(GLFW_KEY_R);
             List<Integer> listZoomMinus = new ArrayList<>();
             listZoomMinus.add(InputConst.buttonB);
-            zoom = new Button("zoom", listZoomPlus, new ArrayList<>(), gamepad1);
-            dezoom = new Button("dezoom", listZoomMinus, new ArrayList<>(), gamepad1);
+            List<Integer> listZoomPlusKeyboard = new ArrayList<>();
+            listZoomPlusKeyboard.add(GLFW_KEY_F);
+            zoom = new Button("zoom", listZoomPlus, listZoomPlusKeyboard, gamepad1);
+            dezoom = new Button("dezoom", listZoomMinus, listZoomMinusKeyboard, gamepad1);
         }
 
         engine.translateView(new Vector3f(0.0f, -125.0f, 0.0f));
 
-        while (engine.isRunning()) {
+        while (engine.getRunning()) {
             lastFrame = System.currentTimeMillis();
             // Game logic should fit here
 
@@ -113,13 +121,16 @@ public class TestEngine {
                 // Check si le personnage a sauté
                 if (zoom.isButtonPressed()){
                     // Le personnage saute
-                    engine.camera.zoom(1.001f);
+                    engine.getCamera().zoom(1.001f);
                 }if(dezoom.isButtonPressed()){
-                    engine.camera.zoom(0.999f);
+                    engine.getCamera().zoom(0.999f);
                 }
             }
 
-            engine.cameraTrackingObjectGl(zangief, -250.0f);
+//            engine.cameraTrackingObjectGl(zangief, -250.0f);
+            engine.cameraTrackingBetweenTwoObjectGl();
+
+            uiTextCoordP1.setText("X: " + zangief.getXPos() + " Y: " + zangief.getYPos());
 
             KeyboardInput.keyboardInput(zangief, speed);
 

src/engine/camera/Camera.java

@@ -1,8 +1,9 @@
-package engine.object;
+package engine.camera;
 
 import engine.Engine;
 import engine.math.Matrix4f;
 import engine.math.Vector3f;
+import engine.object.ObjectGl;
 
 public class Camera {
 

src/engine/camera/TrackingDummy.java

@@ -0,0 +1,9 @@
+package engine.camera;
+
+import engine.math.Vector3f;
+
+public interface TrackingDummy {
+
+    public Vector3f getViewVector();
+
+}

src/engine/camera/TrackingTore.java

@@ -0,0 +1,52 @@
+package engine.camera;
+
+import engine.Engine;
+import engine.math.Vector3f;
+import engine.object.ObjectGl;
+
+public class TrackingTore implements TrackingDummy {
+
+    private float rayonExt;
+    private final float offset;
+    private final ObjectGl obj1;
+    private final ObjectGl obj2;
+    private final Engine engine;
+
+    public TrackingTore(float offset, ObjectGl obj1, ObjectGl obj2, Engine engine){
+        this.rayonExt = offset;
+        this.offset = offset;
+        this.obj1 = obj1;
+        this.obj2 = obj2;
+        this.engine = engine;
+    }
+
+    public Vector3f getViewVector(){
+        Vector3f vec = new Vector3f(0.0f,0.0f,0.0f);
+
+        //which object is to the left
+        ObjectGl left = obj1.getXPos() >= obj2.getXPos() ? obj2 : obj1;
+        ObjectGl right = obj1.getXPos() < obj2.getXPos() ? obj2 : obj1;
+
+        //Track his current position and other useful data
+        float xPos = this.engine.getViewXPos();
+        float dimension = this.engine.getCamera().getDimension();
+        float distance = Math.abs(left.getXPos() - right.getXPos()) + right.getWidth() * right.getScalingFactor();
+        float middle_point = (left.getXPos() + right.getXPos() + right.getWidth() * right.getScalingFactor()) / 2;
+
+        if (left.getXPos() < xPos - rayonExt){
+            // Il faut décaler à gauche + dezoom
+            vec.x = - middle_point - xPos;
+            this.rayonExt = Math.abs(left.getXPos() - xPos);
+            //mtn on dezoom il faut calculer le rapport necessaire pour avoir les deux objets dans le champs
+            this.engine.getCamera().zoom(distance/dimension);
+        } else if(left.getXPos() > xPos - rayonExt + offset){
+//            this.engine.getCamera().zoom(dimension/distance);
+            // Il faut décaler à droite + zoom
+        } else if(right.getXPos() > xPos + rayonExt){
+            // Il faut décaler à droite + dezoom
+        } else if(right.getXPos() < xPos + rayonExt - offset){
+            // Il faut décaler à gauche + zoom
+        }
+        return vec;
+    }
+}

src/engine/gui/UIDummy.java

@@ -1,7 +1,7 @@
 package engine.gui;
 
 import engine.Engine;
-import engine.object.Camera;
+import engine.camera.Camera;
 
 /**
  * Classe dont hérite tous les autres élements d'interface

src/engine/gui/UIElement.java

@@ -47,6 +47,6 @@ public class UIElement extends UIDummy{
         float y = dimension * ar * 2 * this.yPos - dimension * ar;
         obj.translate(new Vector3f(x, y, this.zPos));
         // Camera position
-        obj.translate(new Vector3f(- engine.transformationView.x, -engine.transformationView.y));
+        obj.translate(new Vector3f(- engine.getTransformationView().x, -engine.getTransformationView().y));
     }
 }

src/engine/gui/UIElementText.java

@@ -62,7 +62,7 @@ public class UIElementText extends UIDummy{
             obj.translate(new Vector3f(x, y, this.zPos));
             obj.translate(new Vector3f(10.0f * i * this.scalingFactor)); // 10.0f est dependant de la taille de la police à changer si besoin rendre dynamique si plusieurs police
             // Camera position
-            obj.translate(new Vector3f(- engine.transformationView.x, - engine.transformationView.y));
+            obj.translate(new Vector3f(- engine.getTransformationView().x, - engine.getTransformationView().y));
             i++;
         }
     }

src/engine/object/ObjectGl.java

@@ -253,6 +253,14 @@ public class ObjectGl {
         return zPos;
     }
 
+    public float getWidth(){
+        return this.width;
+    }
+
+    public float getHeight(){
+        return this.height;
+    }
+
     public float getScalingFactor(){
         return scalingFactor;
     }