[Engine]: Use Fluent Interface Design Pattern in GameObjects

https://en.wikipedia.org/wiki/Fluent_interface
201flaviosilva · Feb 21, 2022 · 81578bd · 81578bd
1 parent adfa3f7
commit 81578bd
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Showing 4 changed files with 102 additions and 24 deletions.
diff --git a/src/GameObjects/GameObjectBase.js b/src/GameObjects/GameObjectBase.js
@@ -16,13 +16,25 @@ export default class GameObject {
 		this.visible = true;
 	}
 
-	setName(name) { this.name = name; }
+	setName(name) {
+		this.name = name;
+		return this;
+	}
 
 	// Render
 	// Position
-	setX(x) { this.setPosition(x, this.y, this.z); }
-	setY(y) { this.setPosition(this.x, y, this.z); }
-	setZ(z) { this.setPosition(this.x, this.y, z); }
+	setX(x) {
+		this.setPosition(x, this.y, this.z);
+		return this;
+	}
+	setY(y) {
+		this.setPosition(this.x, y, this.z);
+		return this;
+	}
+	setZ(z) {
+		this.setPosition(this.x, this.y, z);
+		return this;
+	}
 	getPosition() { return { x: this.x, y: this.y, z: this.z }; }
 	setPosition(x, y, z = this.z, force = false) {
 		if (this.bodyType === "S" && !force) return;
@@ -31,6 +43,7 @@ export default class GameObject {
 		this.x = x;
 		this.y = y;
 		this.z = z;
+		return this;
 	}
 	setRandomPosition(x = 0, y = 0, width = GlobalStateManagerInstance.viewportDimensions.width, height = GlobalStateManagerInstance.viewportDimensions.height) {
 		do {
@@ -39,6 +52,7 @@ export default class GameObject {
 				y + Math.random() * height
 			);
 		} while (!this.checkIsInsideWorldBounds());
+		return this;
 	}
 
 	getCenter() { return { x: this.getCenterX(), y: this.getCenterY() }; }
@@ -55,10 +69,19 @@ export default class GameObject {
 	getRightCenter() { return { x: this.getRight(), y: this.getCenterY() }; }
 
 	// Color
-	setFillColor(fillColor) { this.fillColor = fillColor; }
-	setStrokeColor(strokeColor) { this.strokeColor = strokeColor; }
+	setFillColor(fillColor) {
+		this.fillColor = fillColor;
+		return this;
+	}
+	setStrokeColor(strokeColor) {
+		this.strokeColor = strokeColor;
+		return this;
+	}
 
-	setVisible(isVisible) { this.visible = isVisible; }
+	setVisible(isVisible) {
+		this.visible = isVisible;
+		return this;
+	}
 
 	_render() {
 		if (!this.visible) return;

diff --git a/src/GameObjects/PhysicsGameObject.js b/src/GameObjects/PhysicsGameObject.js
@@ -20,16 +20,30 @@ export default class PhysicsGameObject extends GameObject {
 		this._strokeDebugColor = "#016301";
 	}
 
-	// -- Physics
 	getType() { return this._type; }
 
-	setActive(isActive) { this.active = isActive; }
+	setActive(isActive) {
+		this.active = isActive;
+		return this;
+	}
 
 	// Body Type
-	setDynamicBody() { this.setBodyType("D"); }
-	setKinematicBody() { this.setBodyType("K"); }
-	setStaticBody() { this.setBodyType("S"); }
-	setTriggerBody() { this.setBodyType("T"); }
+	setDynamicBody() {
+		this.setBodyType("D");
+		return this;
+	}
+	setKinematicBody() {
+		this.setBodyType("K");
+		return this;
+	}
+	setStaticBody() {
+		this.setBodyType("S");
+		return this;
+	}
+	setTriggerBody() {
+		this.setBodyType("T");
+		return this;
+	}
 	setBodyType(bodyType) { // D = Dynamic, K = Kinematic, S = Static, T = Trigger
 		if (typeof bodyType !== "string" || this.bodyType === bodyType || bodyType.length > 1) return;
 		bodyType = bodyType.toUpperCase();
@@ -39,35 +53,68 @@ export default class PhysicsGameObject extends GameObject {
 			this.setBounce(0);
 		}
 		this.bodyType = bodyType;
+		return this;
 	}
 	getBodyType() { return this.bodyType; }
 
-	setVelocityX(x) { this.setVelocity(x, this.velocity.y); }
-	setVelocityY(y) { this.setVelocity(this.velocity.x, y); }
+	// Velocity
+	setVelocityX(x) {
+		this.setVelocity(x, this.velocity.y);
+		return this;
+	}
+	setVelocityY(y) {
+		this.setVelocity(this.velocity.x, y);
+		return this;
+	}
 	setVelocity(x, y = x) {
 		if (this.bodyType === "S") return;
 
 		this.velocity.x = x;
 		this.velocity.y = y;
+		return this;
 	}
 
-	setFrictionX(x) { this.setFriction(x, this.friction.y); }
-	setFrictionY(y) { this.setFriction(this.friction.x, y); }
+	// Friction
+	setFrictionX(x) {
+		this.setFriction(x, this.friction.y);
+		return this;
+	}
+	setFrictionY(y) {
+		this.setFriction(this.friction.x, y);
+		return this;
+	}
 	setFriction(x, y = x) {
 		this.friction.x = x;
 		this.friction.y = y;
+		return this;
 	}
 
-	setBounceX(x) { this.setBounce(x, this.bounce.y); }
-	setBounceY(y) { this.setBounce(this.bounce.x, y); }
+	// Bounce
+	setBounceX(x) {
+		this.setBounce(x, this.bounce.y);
+		return this;
+	}
+	setBounceY(y) {
+		this.setBounce(this.bounce.x, y);
+		return this;
+	}
 	setBounce(x, y = x) {
 		this.bounce.x = x;
 		this.bounce.y = y;
+		return this;
 	}
 
-	setMass(mass) { this.mass = mass; }
+	// Mass
+	setMass(mass) {
+		this.mass = mass;
+		return this;
+	}
 
-	setCollisionWorldBounds(collisionWorldBounds) { this.collisionWorldBounds = collisionWorldBounds; }
+	// Collisions
+	setCollisionWorldBounds(collisionWorldBounds) {
+		this.collisionWorldBounds = collisionWorldBounds;
+		return this;
+	}
 
 	// Check Current Collision With World Bounds
 	checkTopCollisionWorldBounds() { return this.getTop() <= 0; }

diff --git a/src/GameObjects/Rectangle/CommonMethods.js b/src/GameObjects/Rectangle/CommonMethods.js
@@ -11,12 +11,19 @@ const CommonMethods = {
 	getCenterY: function () { return this.y + this.height / 2; },
 
 	// Size
-	setWidth: function (width) { this.setSize(width, this.height); },
-	setHeight: function (height) { this.setSize(this.width, height); },
+	setWidth: function (width) {
+		this.setSize(width, this.height);
+		return this;
+	},
+	setHeight: function (height) {
+		this.setSize(this.width, height);
+		return this;
+	},
 	setSize: function (width, height = width, force = false) {
 		if (this.bodyType === "S" && !force) return;
 		this.width = width;
 		this.height = height;
+		return this;
 	},
 	getBounds: function () { return { x: this.getLeft(), y: this.getTop(), width: this.width, height: this.height }; },
 	getArea: function () { return this.width * this.height; },
@@ -33,6 +40,7 @@ const CommonMethods = {
 	refresh: function (x, y, width, height) {
 		this.setPosition(x, y, this.z, true);
 		this.setSize(width, height, true);
+		return this;
 	},
 
 	// ----- Private methods -----

diff --git a/src/Utils/Utils.js b/src/Utils/Utils.js
@@ -11,7 +11,7 @@ export default class Utils {
 		this.Vector2 = Vector2;
 	}
 
-	getVersion() { return "0.8.1"; }
+	getVersion() { return "Impacto: 0.8.1"; }
 }
 
 export const UtilsInstance = new Utils();