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✨ Start work on the pandora engine

- Implement parenting of game objects,  _update and _draw callbacks;
- Add Vector2 and Rect components;
- Add GameObject base class;
- Add Object2D and Shape2D game objects;
- Add GameHandler handler;
- Add Enums singleton;
- Change Sketch test out the new features of the engine.
Pedro Schneider há 3 anos atrás
pai
80f51d8f78
commit
1f0911fea6
9 ficheiros alterados com 307 adições e 6 exclusões
Visão Dividida Mostrar Estatísticas Diff
  1. 23 2
      index.html
  2. 4 0
      pandora/Enums.js
  3. 10 0
      pandora/components/Rect.js
  4. 65 0
      pandora/components/Vector2.js
  5. 25 0
      pandora/game_objects/2d_objects/Object2D.js
  6. 10 0
      pandora/game_objects/2d_objects/Shape2D.js
  7. 79 0
      pandora/game_objects/GameObject.js
  8. 41 0
      pandora/handlers/GameHandler.js
  9. 50 4
      src/sketch.js

+ 23 - 2
index.html
Ver Ficheiro 

@@ -4,14 +4,35 @@
 
     <meta charset="utf-8" />
 
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
 
-    <title>Sketch</title>
 
+    <title>Project Edu</title>
 
 
     <link rel="stylesheet" type="text/css" href="style.css">
 
 
+    <!--******************************
 
+      p5Js Modules
 
+    *******************************-->
 
     <script src="libraries/p5.min.js"></script>
 
     <script src="libraries/p5.sound.min.js"></script>
 
-  </head>
 
+    
+    <!--******************************
 
+      Pandora Engine
 
+    *******************************-->
 
+    <!-- Components -->
 
+    <script src="pandora/components/Rect.js"></script>
 
+    <script src="pandora/components/Vector2.js"></script>
 
+    
+    <!-- Game Objects -->
 
+    <script src="pandora/game_objects/GameObject.js"></script>
 
+    <script src="pandora/game_objects/2d_objects/Object2D.js"></script>
 
+    <script src="pandora/game_objects/2d_objects/Shape2D.js"></script>
 
 
+    <!-- Handlers -->
 
+    <script src="pandora/handlers/GameHandler.js"></script>
 
+    
+    <!-- Singletons -->
 
+    <script src="pandora/Enums.js"></script>
 
+  </head>
 
+  
   <body>
 
     <script src="src/sketch.js"></script>
 
   </body>

+ 4 - 0
pandora/Enums.js
Ver Ficheiro 

@@ -0,0 +1,4 @@
 
+const SHAPES = {
 
+    RECT: 1,
 
+    ELLIPSE: 2,
 
+}

+ 10 - 0
pandora/components/Rect.js
Ver Ficheiro 

@@ -0,0 +1,10 @@
 
+class Rect
 
+{
 
+    constructor(x, y, w, h)
 
+    {
 
+        this.x = x;
 
+        this.y = y;
 
+        this.w = w;
 
+        this.h = h;
 
+    }
 
+}

+ 65 - 0
pandora/components/Vector2.js
Ver Ficheiro 

@@ -0,0 +1,65 @@
 
+class Vector2
 
+{
 
+    static ZERO()
 
+    {
 
+        return new Vector2(0, 0);
 
+    }
 
+    static ONE()
 
+    {
 
+        return new Vector2(1, 1);
 
+    }
 
+    static RIGHT()
 
+    {
 
+        return new Vector2(1, 0);
 
+    }
 
+    static LEFT()
 
+    {
 
+        return new Vector2(-1, 0);
 
+    }
 
+    static UP()
 
+    {
 
+        return new Vector2(0, -1);
 
+    }
 
+    static DOWN()
 
+    {
 
+        return new Vector2(0, 1);
 
+    }
 
+
 
+    constructor(x, y)
 
+    {
 
+        this.x = x;
 
+        this.y = y;
 
+    }
 
+
 
+    // Methods
 
+    abs()
 
+    {
 
+        return new Vector2(abs(this.x), abs(this.y));
 
+    }
 
+
 
+    angle()
 
+    {
 
+        return atan2(this.y, this.x);
 
+    }
 
+
 
+    lengthSquared()
 
+    {
 
+        return this.x * this.x + this.y * this.y;
 
+    }
 
+
 
+    length()
 
+    {
 
+        return sqrt(this.lengthSquared());
 
+    }
 
+
 
+    normalized()
 
+    {
 
+        let len = this.length();
 
+        return new Vector2(this.x / len, this.y / len);
 
+    }
 
+
 
+    distanceSquaredTo(v)
 
+    {
 
+        return new Vector2(v.x - this.x, v.y - this.y).length();
 
+    }
 
+}

+ 25 - 0
pandora/game_objects/2d_objects/Object2D.js
Ver Ficheiro 

@@ -0,0 +1,25 @@
 
+class Object2D extends GameObject
 
+{
 
+    constructor(name)
 
+    {
 
+        super(name);
 
+
 
+        this.position = Vector2.ZERO();
 
+        this.rotationDegrees = 0;
 
+        this.scale = Vector2.ONE();
 
+    }
 
+
 
+    draw(delta)
 
+    {
 
+        push();
 
+        translate(this.position.x, this.position.y);
 
+        rotate(this.rotationDegrees);
 
+        scale(this.scale.x, this.scale.y);
 
+        this._draw(delta);
 
+
 
+        for (let i = 0; i < this.children.length; i++)
 
+            this.children[i].draw(delta);
 
+
 
+        pop()
 
+    }
 
+}

+ 10 - 0
pandora/game_objects/2d_objects/Shape2D.js
Ver Ficheiro 

@@ -0,0 +1,10 @@
 
+class Shape2D extends Object2D
 
+{
 
+    constructor(name, shape = null, data = null)
 
+    {
 
+        super(name);
 
+
 
+        this.shape = shape;
 
+        this.data = data;
 
+    }
 
+}

+ 79 - 0
pandora/game_objects/GameObject.js
Ver Ficheiro 

@@ -0,0 +1,79 @@
 
+class GameObject
 
+{
 
+    constructor(name)
 
+    {
 
+        this.id = 0;
 
+
 
+        this.name = name;
 
+
 
+        this.children = [];
 
+        this.parented = false;
 
+        this.parent = null;
 
+
 
+        GameHandler.instanceGameObject(this);
 
+
 
+    }
 
+
 
+
 
+
 
+
 
+
 
+    // Getters
 
+    getChildren()
 
+    {
 
+        return this.children;
 
+    }
 
+
 
+    getChildByIndex(idx)
 
+    {
 
+        if (idx >= 0 && idx < this.children.length)
 
+            return this.children[idx];
 
+        return null;
 
+    }
 
+
 
+    getChildByName(name)
 
+    {
 
+        for (let i = 0; i < this.children.length; i++)
 
+            if (this.children[i].name == name) return this.children[i];
 
+        return null;
 
+    }
 
+
 
+    getParent()
 
+    {
 
+        if (!this.parented) return null;
 
+        return this.parent;
 
+    }
 
+
 
+    // Methods
 
+    addChild(child)
 
+    {
 
+        child.parent = this;
 
+        child.parented = true;
 
+        this.children.push(child);
 
+    }
 
+
 
+    update(delta)
 
+    {
 
+        this._update(delta);
 
+        for (let i = 0; i < this.children.length; i++)
 
+            this.children[i].update(delta);
 
+    }
 
+
 
+    draw(delta)
 
+    {
 
+        this._draw(delta);
 
+        for (let i = 0; i < this.children.length; i++)
 
+            this.children[i].draw(delta);
 
+    }
 
+
 
+    // Callbacks
 
+    _update(delta)
 
+    {
 
+
 
+    }
 
+
 
+    _draw(delta)
 
+    {
 
+
 
+    }
 
+}

+ 41 - 0
pandora/handlers/GameHandler.js
Ver Ficheiro 

@@ -0,0 +1,41 @@
 
+class GameHandler
 
+{
 
+    static rootObjects = []
 
+    static nextId = 0;
 
+
 
+    static bDrawDebugFPS = false;
 
+    static drawDebugFPS(val)
 
+    {
 
+        this.bDrawDebugFPS = val;
 
+    }
 
+
 
+    static instanceGameObject(obj)
 
+    {
 
+        obj.id = this.nextId;
 
+        this.nextId++;
 
+    }
 
+
 
+    static addRootObject(obj)
 
+    {
 
+        this.rootObjects.push(obj);
 
+    }
 
+
 
+    static update()
 
+    {
 
+        for (let i = 0; i < this.rootObjects.length; i++)
 
+            this.rootObjects[i].update(1 / frameRate());
 
+    }
 
+
 
+    static draw()
 
+    {
 
+        if (this.bDrawDebugFPS)
 
+        {
 
+            textSize(12);
 
+            stroke(0);
 
+            text("FPS: " + frameRate(), 10, 10, windowWidth, windowHeight);
 
+        }
 
+
 
+        for (let i = 0; i < this.rootObjects.length; i++)
 
+            this.rootObjects[i].draw(1 / frameRate());
 
+    }
 
+}

+ 50 - 4
src/sketch.js
Ver Ficheiro 

@@ -1,7 +1,53 @@
 
-function setup() {
 
-  createCanvas(400, 400);
 
+class TestObject extends Object2D
 
+{
 
+    constructor(name)
 
+    {
 
+        super(name);
 
+
 
+        this.position.x = windowWidth / 2;
 
+        this.position.y = windowHeight / 2;
 
+    }
 
+
 
+    _update(delta)
 
+    {
 
+        if (this.name == "myTest")
 
+        {
 
+            this.position.x -= 1;
 
+        }
 
+    }
 
+
 
+    _draw(delta)
 
+    {
 
+        ellipse(0, 0, 100, 100)
 
+    }
 
+}
 
+
 
+let test;
 
+
 
+function setup()
 
+{
 
+    createCanvas(windowWidth, windowHeight);
 
+    smooth();
 
+    GameHandler.drawDebugFPS(true);
 
+
 
+    test = new TestObject("myTest");
 
+    GameHandler.addRootObject(test);
 
+
 
+    test.position = new Vector2(windowWidth / 2, windowHeight / 2);
 
+    test.scale = Vector2.ONE();
 
+    test.rotationDegrees = 0;
 
+
 
+    test.addChild(new TestObject("myChild"));
 
 }
 
 
-function draw() {
 
-  background(220);
 
+function draw()
 
+{
 
+    background(220);
 
+    GameHandler.update();
 
+    GameHandler.draw();
 
 }
 
+
 
+function windowResized()
 
+{
 
+    resizeCanvas(windowWidth, windowHeight);
 
+}