diff --git a/.gitignore b/.gitignore new file mode 100644 index 00000000..5a00c13d --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +node_modules/ +.env +.DS_Store diff --git a/Procfile b/Procfile new file mode 100644 index 00000000..6f86b16c --- /dev/null +++ b/Procfile @@ -0,0 +1 @@ +web: node server.js \ No newline at end of file diff --git a/README.md b/README.md index 3ae10a92..4fcce66b 100644 --- a/README.md +++ b/README.md @@ -1,61 +1,7 @@ -Assignment 4 - Creative Coding: Interactive Multimedia Experiences -=== +## Eat -Due: October 4th, by 11:59 AM. +[Live demo: https://a4-creative-coding-liamrathke.herokuapp.com/](https://a4-creative-coding-liamrathke.herokuapp.com/) -For this assignment we will focus on client-side development using popular audio/graphics/visualization technologies. The goal of this assignment is to refine our JavaScript knowledge while exploring the multimedia capabilities of the browser. +Screen Shot 2021-10-04 at 10 47 50 AM -[WebAudio / Canvas / Three Tutorial](https://github.com/cs4241-21a/cs4241-21a.github.io/blob/main/webaudio_canvas_three.md) -[SVG + D3 tutorial](https://github.com/cs4241-21a/cs4241-21a.github.io/blob/main/using_svg_and_d3.md) - -Baseline Requirements ---- - -Your application is required to implement the following functionalities: - -- A server created using Express. This server can be as simple as needed. -- A client-side interactive experience using at least one of the following web technologies frameworks. - - [Three.js](https://threejs.org/): A library for 3D graphics / VR experiences - - [D3.js](https://d3js.org): A library that is primarily used for interactive data visualizations - - [Canvas](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API): A 2D raster drawing API included in all modern browsers - - [SVG](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API): A 2D vector drawing framework that enables shapes to be defined via XML. - - [Web Audio API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API): An API for audio synthesis, analysis, processing, and file playback. -- A user interface for interaction with your project, which must expose at least four parameters for user control. [tweakpane](https://cocopon.github.io/tweakpane/) is highly recommended for this, but you can also use regular HTML `` tags (the `range` type is useful to create sliders). You might also explore interaction by tracking mouse movement via the `window.onmousemove` event handler in tandem with the `event.clientX` and `event.clientY` properties. Consider using the [Pointer Events API](https://developer.mozilla.org/en-US/docs/Web/API/Pointer_events) to ensure that that both mouse and touch events will both be supported in your app. -- Your application should display basic documentation for the user interface when the application first loads. - -The interactive experience should possess a reasonable level of complexity. Some examples: -### Three.js -- A generative algorithm creates simple agents that move through a virtual world. Your interface controls the behavior / appearance of these agents. -- A simple 3D game... you really want this to be a simple as possible or it will be outside the scope of this assignment. -- An 3D audio visualization of a song of your choosing. User interaction should control aspects of the visualization. -### Canvas -- Implement a generative algorithm such as [Conway's Game of Life](https://bitstorm.org/gameoflife/) (or 1D cellular automata) and provide interactive controls. Note that the Game of Life has been created by 100s of people using ; we'll be checking to ensure that your implementation is not a copy of these. -- Design a 2D audio visualizer of a song of your choosing. User interaction should control visual aspects of the experience. -### Web Audio API -- Create a screen-based musical instrument using the Web Audio API. You can use projects such as [Interface.js](http://charlie-roberts.com/interface/) or [Nexus UI](https://nexus-js.github.io/ui/api/#Piano) to provide common musical interface elements, or use dat.GUI in combination with mouse/touch events (use the Pointer Events API). Your GUI should enable users to control aspects of sound synthesis. If you want to use higher-level instruments instead of the raw WebAudio API sounds, consider trying the instruments provided by [Tone.js]() or [Gibber](https://github.com/charlieroberts/gibber.audio.lib). -### D3.js -- Create visualizations using the datasets found at [Awesome JSON Datasets](https://github.com/jdorfman/Awesome-JSON-Datasets). Experiment with providing different visualizations of the same data set, and providing users interactive control over visualization parameters and/or data filtering. Alternatively, create a single visualization with using one of the more complicated techniques shown at [d3js.org](d3js.org) and provide meaningful points of interaction for users. - -Deliverables ---- - -Do the following to complete this assignment: - -1. Implement your project with the above requirements. -3. Test your project to make sure that when someone goes to your main page on Glitch/Heroku/etc., it displays correctly. -4. Ensure that your project has the proper naming scheme `a4-firstname-lastname` so we can find it. -5. Fork this repository and modify the README to the specifications below. *NOTE: If you don't use Glitch for hosting (where we can see the files) then you must include all project files that you author in your repo for this assignment*. -6. Create and submit a Pull Request to the original repo. Name the pull request using the following template: `a4-firstname-lastname`. - -Sample Readme (delete the above when you're ready to submit, and modify the below so with your links and descriptions) ---- - -## Your Web Application Title - -your hosting link e.g. http://a4-charlieroberts.glitch.me - -Include a very brief summary of your project here. Images are encouraged when needed, along with concise, high-level text. Be sure to include: - -- the goal of the application -- challenges you faced in realizing the application -- the instructions you present in the website should be clear enough to use the application, but if you feel any need to provide additional instructions please do so here. +The goal of this submission was to modify the HTML5 Canvas-based game I had built for A2 and A3 to conform with A4's requirements, as well as to make several user experience and usability improvements. Most of the challenging work was completed earlier this term, when the game was initially built - I learned about HTML5 Canvas rendering, including strategies for clearing/reusing the canvas, syncing game progress to a refresh rate, and since this application uses the VueJS framework, properly registering interval-based code so that it works properly with the VueJS lifecycle. To add substance for A4, users are now able to customize the player and food colors using sliders (several colors are pre-selected), bringing the total user-modifiable parameters up to the four required: the player's X position, the player's Y positoin, the player's color, and the food's color. Additionally, navigation buttons (to move the player up, down, left, or right) were added, so that users on mobile devices could still play the game without needing a keyboard. One additional challenging bug was somewhat improved: the original game listened to all keystrokes triggered on the webpage, which could cause issues if the user entered a name that contained letters in WASD, or if the user tried to use arrow keys to navigate through the input options. 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"Eater", + "version": "v0.2", + "description": "Eat food", + "author": "Liam Rathke", + "scripts": { + "start": "node server.js" + }, + "engines": { + "node": "14.x" + }, + "dependencies": { + "body-parser": "^1.19.0", + "compression": "^1.7.4", + "cookie-parser": "^1.4.5", + "csurf": "^1.11.0", + "dotenv": "^10.0.0", + "express": "^4.17.1", + "express-handlebars": "^5.3.4", + "mime": "^2.4.4", + "mongodb": "^4.1.2", + "serve-static": "^1.14.1" + } +} diff --git a/public/css/style.css b/public/css/style.css new file mode 100644 index 00000000..076a897d --- /dev/null +++ b/public/css/style.css @@ -0,0 +1,62 @@ +* { + font-family: 'Coming Soon', cursive; +} + +body { + background-color: #E8EDDF; + color: #242423; +} + +#app { + display: flex; + flex-flow: row wrap; +} + +#canvas { + background-color: #CFDBD5; + outline: 1px dashed #333533; + margin-top: 1px; +} + +#navigation { + display: block; + width: 480px !important; +} + +#navigation > .btn-group { + width: 100%; +} + +#navigation > .btn { + width: 25%; +} + +h1 { + margin: 0.5em; + font-family: 'Permanent Marker', cursive; +} + +hr { + color: #333533; + opacity: 100%; +} + +.input-group-text, .form-control, .list-group-item { + background-color: #CFDBD5; + border-color: #333533; + border-radius: 0 !important; + border-style: dashed; +} + +.form-control:focus { + background-color: inherit !important; + border-color: inherit !important; + box-shadow: none !important; +} + +.split { + display: flex; +} +.split > button { + margin-left: 1em; +} \ No newline at end of file diff --git a/public/js/scripts.js b/public/js/scripts.js new file mode 100644 index 00000000..073a5c37 --- /dev/null +++ b/public/js/scripts.js @@ -0,0 +1,228 @@ +// Add some Javascript code here, to run on the front end. + +console.log('Welcome to assignment 2!') + + +const COLORS = [ + '#007991', + '#888098', + '#F26A8D', + '#8FCB9B', + '#F7B05B', + '#66CED6', + '#645DD7', + '#198754' +] + +const USER_COLOR = '#007991' +const FOOD_COLOR = '#198754' + +const MAX_X = 8 +const MAX_Y = 8 + +const CANVAS_X = 480 +const CANVAS_Y = 480 +const SCALE = 1 // window.devicePixelRatio + +const OBJECT_SIZE = 60 + +function randomCoords() { + return [Math.floor(Math.random() * MAX_X), Math.floor(Math.random() * MAX_Y)] +} + +function drawSquare(ctx, coords, color) { + const x = coords[0] * OBJECT_SIZE + const y = coords[1] * OBJECT_SIZE + + ctx.beginPath() + ctx.rect(x, y, OBJECT_SIZE, OBJECT_SIZE) + ctx.fillStyle = color + ctx.fill() + ctx.closePath() +} + +function coordsMatching(a, b) { + return a.toString() === b.toString() +} + +function render(ctx, user, food, path, userColor, foodColor) { + let userColorHex = COLORS[parseInt(userColor)] + let foodColorHex = COLORS[parseInt(foodColor)] + + ctx.clearRect(0, 0, CANVAS_X, CANVAS_Y) + drawSquare(ctx, user, userColorHex) + drawSquare(ctx, food, foodColorHex) + + ctx.globalAlpha = 0.5 + path.forEach(coords => { + drawSquare(ctx, coords, userColorHex) + }) + ctx.globalAlpha = 1 +} + +const app = Vue.createApp({ + data() { + return { + token: '', + game: { + userColor: '0', + foodColor: '7', + user: [], + path: [], + food: [], + }, + username: '', + score: 0, + intervalID: 0, + results: {} + } + }, + computed: { + scores() { + let scores = [] + Object.keys(this.results).forEach(key => { + scores.push({username: key, score: this.results[key]}) + }) + return scores.sort((a, b) => b.score - a.score) + } + }, + mounted: function() { + this.token = document.querySelector('meta[name="csrf-token"]').getAttribute('content') + this.game.user = randomCoords() + this.game.food = randomCoords() + + while (coordsMatching(this.game.user, this.game.food)) { + this.game.food = randomCoords() + } + + let canvas = document.getElementById('canvas') + let ctx = canvas.getContext('2d') + ctx.scale(SCALE, SCALE) + + canvas.onkeyup = (event) => { + switch (event.key) { + case 'a': + case 'ArrowLeft': + event.preventDefault() + this.moveLeft() + break + case 'd': + case 'ArrowRight': + event.preventDefault() + this.moveRight() + break + case 'w': + case 'ArrowUp': + event.preventDefault() + this.moveUp() + break + case 's': + case 'ArrowDown': + event.preventDefault() + this.moveDown() + break + } + } + + this.intervalID = setInterval(() => { + while (coordsMatching(this.game.user, this.game.food)) { + this.score++ + this.game.food = randomCoords() + } + render(ctx, this.game.user, this.game.food, this.game.path, this.game.userColor, this.game.foodColor) + }, 50) + + this.getScores() + }, + methods: { + async getScores() { + let token = this.token + let response = await fetch('/scores', { + credentials: 'same-origin', + headers: { + 'CSRF-Token': token, + 'Content-Type' : 'application/json' + }, + method: 'GET' + }) + this.results = await response.json() + }, + async removeScore() { + let token = this.token + let requestBody = { + username: this.username + } + let response = await fetch('/removeScore', { + credentials: 'same-origin', + headers: { + 'CSRF-Token': token, + 'Content-Type' : 'application/json' + }, + method: 'POST', + body: JSON.stringify(requestBody) + }) + this.results = await response.json() + this.score = 0 + }, + async submitScore() { + let token = this.token + let requestBody = { + username: this.username, + score: this.score + } + let response = await fetch('/score', { + credentials: 'same-origin', + headers: { + 'CSRF-Token': token, + 'Content-Type' : 'application/json' + }, + method: 'POST', + body: JSON.stringify(requestBody) + }) + this.results = await response.json() + this.score = 0 + }, + getColorByIndex(index) { + return COLORS[parseInt(index)] + }, + trackPath() { + console.log(JSON.stringify(this.game.user)) + console.log(JSON.stringify(this.game.path)) + this.game.path.unshift(JSON.parse(JSON.stringify(this.game.user))) + console.log(JSON.stringify(this.game.path)) + this.game.path.splice(3) + console.log(JSON.stringify(this.game.path)) + + this.$forceUpdate() + }, + moveLeft() { + if (this.game.user[0] > 0) { + this.trackPath() + this.game.user[0]-- + } + }, + moveRight() { + if (this.game.user[0] < MAX_X - 1) { + this.trackPath() + this.game.user[0]++ + } + }, + moveUp() { + if (this.game.user[1] > 0) { + this.trackPath() + this.game.user[1]-- + } + }, + moveDown() { + if (this.game.user[1] < MAX_Y - 1) { + this.trackPath() + this.game.user[1]++ + } + } + }, + beforeUnmount: function() { + clearInterval(this.intervalID) + } +}) + +const vm = app.mount('#app') \ No newline at end of file diff --git a/server.js b/server.js new file mode 100644 index 00000000..43a2711e --- /dev/null +++ b/server.js @@ -0,0 +1,103 @@ +const express = require('express') +const { MongoClient } = require('mongodb') + +require('dotenv').config() + +const bodyParser = require('body-parser') +const cookieParser = require('cookie-parser') +const serveStatic = require('serve-static') +const compression = require('compression') +const expressHandlebars = require('express-handlebars') +const csurf = require('csurf') + +const app = express() +app.use(bodyParser.json()) +app.use(cookieParser()) +app.use(compression()) +app.use(serveStatic('public')) +app.use(csurf({ cookie: true})) +app.use(function (req, res, next) { + res.cookie('XSRF-TOKEN', req.csrfToken()) + res.locals.csrfToken = req.csrfToken() + next() +}) + +app.engine('handlebars', expressHandlebars()) +app.set('view engine', 'handlebars') + +let PORT = process.env.PORT +if (PORT == null || PORT == '') { + PORT = 8000 +} + +const client = new MongoClient(process.env.DB_URI, { + useNewUrlParser: true, + useUnifiedTopology: true +}) + +async function getScoresCollection() { + await client.connect() + const database = client.db(process.env.DB_NAME) + let scoresCollection = database.collection(process.env.DB_COLLECTION_SCORES) + return scoresCollection +} + +app.get('/', (req, res) => { + res.render('home', { csrfToken: req.csrfToken(), layout: false }) +}) + +app.get('/scores', async (req, res) => { + scores = await getScores() + res.json(scores) +}) + +app.post('/score', async (req, res) => { + const body = req.body + incrementScore(body.username, body.score) + scores = await getScores() + res.json(scores) +}) + +app.post('/removeScore', async (req, res) => { + const body = req.body + removeScore(body.username) + scores = await getScores() + delete scores[body.username] + console.log(scores) + res.json(scores) +}) + +async function getScores() { + let scores = {} + + const collection = await getScoresCollection() + const cursor = await collection.find() + if (await cursor.count() > 0) { + await cursor.forEach(score => scores[score.username] = score.score) + } + console.log(scores) + await client.close() + return scores +} + +async function incrementScore(username, score) { + const collection = await getScoresCollection() + await collection.updateOne({username}, { + $inc: { + score + } + }, + { upsert: true } + ) + await client.close() +} + +async function removeScore(username) { + const collection = await getScoresCollection() + await collection.deleteOne({username}) + await client.close() +} + +app.listen(PORT, () => { + console.log(`App listening at http://localhost:${PORT}`) +}) diff --git a/views/home.handlebars b/views/home.handlebars new file mode 100644 index 00000000..c55aacca --- /dev/null +++ b/views/home.handlebars @@ -0,0 +1,89 @@ + + + + CS4241 Assignment 4 + + + + + + + + + + + + + +
+ +
+
+ +
+ + +
+
+
+
+ + + + +