Test driven game development silly, stupid or inspired?

Tuesday, August 13, 13

//// build composite position//! movl! ebp,[_ds_xfrac]! shll! ebp,10! andl! ebp,0ffff0000h! movl! eax,[_ds_yfrac]! shrl! eax,6! andl! eax,0ffffh! orl!ebp,eax

! movl! esi,[_ds_source]

//// calculate screen dest//! movl! edi,[_ds_y]! movl! edi,[_ylookup+edi*4]! movl! eax,[_ds_x1]! addl edi,[_columnofs+eax*4]

//// build composite step//! movl! ebx,[_ds_xstep]! shll! ebx,10! andl! ebx,0ffff0000h! movl! eax,[_ds_ystep]! shrl! eax,6! andl! eax,0ffffh! orl!ebx,eax

! movl! ! eax,OFFSET hpatch1+2! ! // convice tasm to modify code...! movl! ! [eax],ebx! movl! ! eax,OFFSET hpatch2+2! ! // convice tasm to modify code...! movl! ! [eax],ebx

// eax!! aligned colormap// ebx!! aligned colormap// ecx,edx! scratch// esi!! virtual source// edi!! moving destination pointer// ebp!! frac

! shldl ecx,ebp,22!

TDD and GamesSilly, Stupid or Inspired?

var spaceImage = $("<img src='images/space_background.png'>");

spaceImage.load(function() { spaceBackground = spaceImage.get(0);});

var playerImage = $("<img src='images/player.png'>");playerImage.load(function() { player = playerImage.get(0);});

var bulletJQueryImage = $("<img src='images/bullet.png'>");bulletJQueryImage.load(function() { bulletImage = bulletJQueryImage.get(0);});

var context, spaceBackground, player, bulletImage, spiderImage, bullets = [], spiders = [], startTicks, lastGeneration, laserBeam, gameOn = true, explosion, pop, backgroundMusicTuesday, August 13, 13

Scheduler ◦ schedules method called for repeated calls: ✓ schedules method called for repeated calls ◦ clears the interval when stop is called: ✓ clears the interval when stop is called ◦ calls that method with the tick rate: ✓ calls that method with the tick rate (200ms) ◦ returns the time for tics: ✓ returns the time for tics ◦ returns its tick time: ✓ returns its tick time

99 tests complete (743 ms)Done. Build script exited with 0

Eskimo!

?Tuesday, August 13, 13

it("uses an associated loader to create a level object, if one exists", function() { var gameDescription = { "newLevel": { "gameObject" : { "customObject" : {} } } };

gameSpec.load("newLevel", function(level) { var loadedObject = level.gameObject('gameObject'); assert.strictEqual(loadedObject.level, level); }); });

var Eskimo = require('../src/main'), canvas, should = require('should'), assert = require('assert'), emptyFunction = function() {}, emptyDocument = {documentElement: null}, jquery = require("jquery"), FixedGameLoop = require("../src/fixed-game-loop"), ObjectPipeline = require('../src/object_pipeline/display_visible_objects.js'), sandbox = require('sinon').sandbox.create(), levels = {};

function dependencies(customConfig) { var dependencyConfig = { game: {create: sandbox.stub().returns({})}, };

if (customConfig !== null) { jquery.extend(dependencyConfig, customConfig); }

return dependencyConfig; }

function configuration(config) { var standardConfig = { canvas: canvas, document: emptyDocument, levels: levels };

if (config !== null) { jquery.extend(standardConfig, config); }

return standardConfig; }

KEEPIT

SIMPLESTUPID

Hunting

Console DLL Game Logic

[Test] public void ItMovesAnArrowInTheCommandedDirection() { var presenter = Substitute.For<Presenter>(); var map = new Map(); var game = new Game(presenter, map); game.SetPlayerQuiver(1);

map.PlaceItem(0, MapItems.Player); map.AddPath(0, 1, Command.Directions.East);

game.Command(new Command { Direction = Command.Directions.East, Order = Command.Commands.Shoot});

Assert.AreEqual(MapItems.Arrow, map.ItemsInCavern(1)[0]); }

protected void Rest() { DisplayAvailableDirections(); DisplayArrowStatus(); }

Feeling Good

Cubicle Wars

UnityMakes your life easier when it’s not making it harder

Scripts

public class NewScript : MonoBehaviour {

// Use this for initialization void Start () { } // Update is called once per frame void Update () { }}

void Awake() { stateMachine = new CubicleWarsStateMachine( new HumanPlayer("Player1"), new HumanPlayer("Player2"));

! ! [Test]! ! public void ItAllowsAddingAUnitToAPlayer()! ! {! ! ! var unit = Substitute.For<Unit>();

! ! ! stateMachine.AddUnitToPlayer("PlayerOne", unit);! ! ! stateMachine.AddUnitToPlayer("PlayerTwo", unit);

! ! ! playerOne.Received().AddUnit(unit);! ! ! playerTwo.Received().AddUnit(unit);! ! }

Updating the View

Update the View

public void Attack(Unit unit)! ! {! ! ! if (CurrentState == State.Attacking)! ! ! {! ! ! ! unit.AttackWith(CurrentPlayer.Weapon());

Shared Interfaces

C# Eventspublic delegate void GameOverEvent(String winner);

public event GameOverEvent GameOver = delegate { };

private void AnnouncePlayerWins(){

GameOver(CurrentPlayer.Name);}

Wiring the Eventsmachine.GameOver += delegate(string winner) {winMessage.SendMessage("ShowWinner", String.Format("{0} wins!", winner));

Health

“MVC”

void Update() { // Each update checks if we are waiting, and if so // modulates the color based on the sin wave and the // current time. if (StartWaiting) { renderer.material.color =

tint * wave.at(Time.time); }}

Effectspublic class SineWave

{! protected float Amplitude { get; set; }! protected float Frequency { get; set; }! protected float Offset { get; set; }

! public SineWave(float amplitude, float frequency, float offset)! {! ! Amplitude = amplitude;! ! Frequency = frequency;! ! Offset = offset;! }

! public float at(float time)! {! ! return (Amplitude * (float)Math.Sin(Frequency * time)) + Offset;! }}

Effects[Test]public void ItReturnsANormalSinWaveOnTime(){! var sineWave = new SineWave(1, 1, 0);

! Assert.AreEqual(0, sineWave.at(0));! Assert.AreEqual(1, sineWave.at((float) Math.PI / 2.0f));}

Hypothesis

-(void) notifyOfSuccessfulDay{ [self.presenter gameOver:Successful];}

-(void) notifyOfFailedDay{ [self.presenter gameOver:Failed];}

-(void) notifyOfKidDeath{ [self.presenter kidsKilledYou];}

-(void) notifyOfWorkDeath{ [self.presenter workKilledYou];}

It(@"Will inform the employee of clock ticks when the turn ends", ^{ id daddy = [OCMockObject niceMockForProtocol:@protocol(Freelancer)];

WorkdayStateMachine *machine = [WorkdayStateMachine machineWithFreeLancer:daddy presenter:nil]; [machine start];

[[daddy expect] clockTicked];

[machine endTurn];

[daddy verify]; });

It(@"is fun", ^{ [ExpectBool(game.fun) toBeTrue];})

• Forget

• The

• Tests

Sprite *sprite = Sprite::createWithTexture(batchNode->getTexture()); sprite->setPosition(ccp(0, 60)); batchNode->addChild(sprite, 0, kTopBucket); sprite = Sprite::createWithTexture(batchNode->getTexture()); sprite->setPosition(ccp(0, 0)); batchNode->addChild(sprite, 0, kMiddleBucket); sprite = Sprite::createWithTexture(batchNode->getTexture()); sprite->setPosition(ccp(0, -60)); batchNode->addChild(sprite, 0, kBottomBucket);

Design Phase

Not the Hard Part

Throw It Out!

It(@"lets the lesson know about an incorrect guess if this is the wrong card", ^{ [[lesson expect] incorrectGuess]; [card tap]; [lesson verify]; });

-(void) tap{ self.current ? [self.lesson correctGuess] : [self.lesson incorrectGuess];}

-(BOOL) ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event{ CGSize textureSize = [self.texture contentSizeInPixels]; if ([Card contains: [self convertTouchToNodeSpaceAR:touch]

inTextureSize:textureSize]) { [self setScale:1.2f]; return true; } return false;}

-(void) ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event{ [self setScale:1.0f]; [self.card tap];}

<p> <strong>Title:</strong> <%= @post.title %></p> <p> <strong>Text:</strong> <%= @post.text %></p>

<%= form_for :post, url: posts_path do |f| %> <% if @post.errors.any? %> <div id="errorExplanation"> <h2><%= pluralize(@post.errors.count, "error") %> prohibited this post from being saved:</h2> <ul> <% @post.errors.full_messages.each do |msg| %> <li><%= msg %></li> <% end

Expect(game) toBeFun

@paytonruleswww.paytonrules.comwww.8thlight.comwww.github.com/paytonrules

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August 11th – 13th 2014Same Place, Same Time

Test driven game development silly, stupid or inspired?

Technology

Transcript of Test driven game development silly, stupid or inspired?

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