asteroids-fighter - npm Package Compare versions

Comparing version 0.5.0 to 0.6.0

lib/fighter.js

 var Velocity = require('asteroids-asteroid');
 
+var defaultOptions = {
+	'speedIncrement': 1,
+	'rotation': Math.PI/36
+};
 
-var doNothing = function() { /* NOTHING! */ };
-var Fighter = module.exports = function (initializer) {
+var Fighter = module.exports = function (initializer, options) {
     Velocity.call(this, initializer);
+	this.options = options || {};
+	for (var key in defaultOptions) {
+		if (!this.options[key]) {
+			this.options[key] = defaultOptions[key];
+		}
+	}
 }
-
 Fighter.prototype = new Velocity();
@@ -13,1 +21,37 @@ Fighter.prototype.fire = function() {
 }
+Fighter.prototype.rotateLeft = function(locked){
+	var oldOrientation = this.orientation();
+	this.orientation(oldOrientation + this.options.rotation);
+	if (locked) {
+		this.turnLeft();
+	}
+};
+Fighter.prototype.rotateRight = function(locked){
+	var oldOrientation = this.orientation();
+	this.orientation(oldOrientation - this.options.rotation);
+	if (locked) {
+		this.turnRight();
+	}
+};
+Fighter.prototype.turnLeft = function(locked){
+	var oldHeading = this.heading();
+	this.heading(oldHeading + this.options.rotation);
+	if (locked) {
+		this.rotateLeft();
+	}
+};
+Fighter.prototype.turnRight = function(locked){
+	var oldHeading = this.heading();
+	this.heading(oldHeading - this.options.rotation);
+	if (locked) {
+		this.rotateRight();
+	}
+};
+Fighter.prototype.speedUp = function(){
+	var oldSpeed = this.speed();
+	this.speed(oldSpeed + this.options['speedIncrement']);
+}
+Fighter.prototype.slowDown = function(){
+	var oldSpeed = this.speed();
+	this.speed(Math.max(oldSpeed - this.options['speedIncrement'], 0.1));
+}

package.json

 {
   "name": "asteroids-fighter",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "Ze destroyer of androids!",
@@ -5,0 +5,0 @@ "main": "lib/fighter.js",

test/fighter_test.js

@@ -21,5 +21,2 @@ var expect = require('chai').expect;
     });
-
-
-
 });
@@ -71,1 +68,130 @@
 });
+
+describe('movement', function(){
+	var options = {
+		'speedIncrement': 2,
+		'rotation': Math.PI/36
+	};
+	var fighter;
+
+	beforeEach(function(){
+		fighter = new Fighter(function(){}, options);
+	});
+
+	['rotateLeft', 'rotateRight', 'turnLeft', 'turnRight', 'speedUp', 'slowDown'].forEach(function(method){
+		it('should respond to ' + method, function(){
+			expect(fighter).to.respondTo(method);
+		});
+	});
+
+	describe('speedUp', function(){
+		it('should increase the speed', function(){
+			var start = 1;
+			fighter.speed(start)
+
+			fighter.speedUp();
+
+			expect(fighter.speed()).to.equal(start + options.speedIncrement);
+		});
+	});
+
+	describe('slowUp', function(){
+		it('should decrease the speed', function(){
+			var start = 3;
+			fighter.speed(start)
+
+			fighter.slowDown();
+
+			expect(fighter.speed()).to.equal(start - options.speedIncrement);
+		});
+
+		it('should not decrease the speed below zero', function(){
+			var start = 1;
+			fighter.speed(start)
+
+			fighter.slowDown();
+
+			expect(fighter.speed()).to.equal(0.1); // TODO fix asteroids-velocity to accept 0
+		});
+	});
+
+	describe('rotateLeft', function(){
+		it('should change orientation', function(){
+			fighter.orientation(0);
+
+			fighter.rotateLeft();
+
+			expect(fighter.orientation()).to.equal(options.rotation);
+		});
+
+		it('should change heading when locked', function(){
+			fighter.orientation(0);
+			fighter.heading(0);
+
+			fighter.rotateLeft(true);
+
+			expect(fighter.orientation()).to.equal(options.rotation);
+			expect(fighter.heading()).to.equal(options.rotation);
+		});
+	});
+
+	describe('rotateRight', function(){
+		it('should change orientation', function(){
+			fighter.orientation(0);
+
+			fighter.rotateRight();
+
+			expect(fighter.orientation()).to.equal(-options.rotation);
+		})
+
+		it('should change heading when locked', function(){
+			fighter.orientation(0);
+			fighter.heading(0);
+
+			fighter.rotateRight(true);
+
+			expect(fighter.orientation()).to.equal(-options.rotation);
+			expect(fighter.heading()).to.equal(-options.rotation);
+		});
+	});
+
+	describe('turnLeft', function(){
+		it('should change heading', function(){
+			fighter.heading(0);
+
+			fighter.turnLeft();
+
+			expect(fighter.heading()).to.equal(options.rotation);
+		});
+
+		it('should change orientation when locked', function(){
+			fighter.orientation(0);
+			fighter.heading(0);
+
+			fighter.turnLeft(true);
+
+			expect(fighter.orientation()).to.equal(options.rotation);
+			expect(fighter.heading()).to.equal(options.rotation);
+		});
+	});
+
+	describe('turnRight', function(){
+		it('should change heading', function(){
+			fighter.heading(0);
+
+			fighter.turnRight();
+
+			expect(fighter.heading()).to.equal(-options.rotation);
+		})
+
+		it('should change orientation when locked', function(){
+			fighter.orientation(0);
+			fighter.heading(0);
+
+			fighter.turnRight(true);
+
+			expect(fighter.orientation()).to.equal(-options.rotation);
+			expect(fighter.heading()).to.equal(-options.rotation);
+		});
+	});
+})

No alert changes

Improved metrics

Total package byte prevSize

8236

99.76%

Lines of code

205

205.97%

No dependency changes