From 10da4cb8d2b56b545e3222aabe5c0cfce91a3a1c Mon Sep 17 00:00:00 2001 From: mgovilla Date: Mon, 4 Oct 2021 02:19:21 -0400 Subject: [PATCH 1/4] working snake game --- .gitignore | 1 + package-lock.json | 387 +++++++++++++++++++++++++++++++++++++++++++ package.json | 23 +++ public/css/style.css | 14 ++ public/index.html | 47 ++++++ public/js/index.js | 172 +++++++++++++++++++ public/js/queue.js | 2 + server.js | 18 ++ 8 files changed, 664 insertions(+) create mode 100644 .gitignore create mode 100644 package-lock.json create mode 100644 package.json create mode 100644 public/css/style.css create mode 100644 public/index.html create mode 100644 public/js/index.js create mode 100644 public/js/queue.js create mode 100644 server.js diff --git a/.gitignore b/.gitignore new file mode 100644 index 00000000..40b878db --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +node_modules/ \ No newline at end of file diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 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"project 4 for cs4241", + "main": "server.js", + "scripts": { + "start": "node server.js" + }, + "repository": { + "type": "git", + "url": "git+https://github.com/mgovilla/a4-creative-coding.git" + }, + "author": "mgovilla@gmail.com", + "license": "ISC", + "bugs": { + "url": "https://github.com/mgovilla/a4-creative-coding/issues" + }, + "homepage": "https://github.com/mgovilla/a4-creative-coding#readme", + "dependencies": { + "@types/jquery": "^3.5.6", + "express": "^4.17.1" + } +} diff --git a/public/css/style.css b/public/css/style.css new file mode 100644 index 00000000..e9e82e2e --- /dev/null +++ b/public/css/style.css @@ -0,0 +1,14 @@ +body { + height: 100%; + overflow: hidden; +} + +.nav { + background-color: aqua; +} + +#game-area { + display: block; + width: 95%; + background-color: lightblue; +} \ No newline at end of file diff --git a/public/index.html b/public/index.html new file mode 100644 index 00000000..47d8c6b0 --- /dev/null +++ b/public/index.html @@ -0,0 +1,47 @@ + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/public/js/index.js b/public/js/index.js new file mode 100644 index 00000000..2e11aff4 --- /dev/null +++ b/public/js/index.js @@ -0,0 +1,172 @@ +var speedMap = { + 75: 'Easy', + 100: 'Medium', + 125: 'Hard' +} + +// map from key to direction +var keyMap = { + 65: 3, + 37: 3, + 87: 0, + 38: 0, + 68: 1, + 39: 1, + 83: 2, + 40: 2 +} + +var gameStarted = false; +var animationInterval = null; + +jQuery(() => { + // setup the game + // -> Create a snake + let c = $('#game-area').get(0) + + c.height = c.offsetHeight - (c.offsetHeight % 60) + c.width = c.offsetWidth - (c.offsetWidth % 60) + + var endGame = (win, score) => { + let msg = win ? 'You win!' : 'Game Over! You scored: ' + score + clearInterval(animationInterval) + + // reset the game + if (!alert(msg)) { window.location.reload(); } + } + + var snakeBoard = new Snake(c, c.width / 60, endGame); + // -> setup an interval to run the snake's draw function + + function setSpeed(num) { + localStorage.setItem('speed', num) + $('#level-dropdown').text(speedMap[num]) + + if (gameStarted) { + clearInterval(animationInterval) + animationInterval = setInterval(() => { snakeBoard.draw() }, num) + } + } + + let s = localStorage.getItem('speed') || 100; + setSpeed(s) + + $('#easy-button').on('click', () => setSpeed(75)) + $('#med-button').on('click', () => setSpeed(100)) + $('#hard-button').on('click', () => setSpeed(125)) + + var startGame = () => { + gameStarted = true; + animationInterval = setInterval(() => { snakeBoard.draw() }, parseInt(localStorage.getItem('speed'))) + } + + // Snake controller + let handleKey = function (e) { + if (e.which in keyMap) { + // set the direction of the snake to the new direction (only if valid) + if (Math.abs(snakeBoard.direction - keyMap[e.which]) != 2 || !gameStarted) + snakeBoard.direction = keyMap[e.which] + + if (!gameStarted) + startGame() + + } + } + + $(document).on('keydown', handleKey); +}) + +// Draw a canvas and add squares to it based on the game state +class Snake { + constructor(canvas, squareWidth, stopGame) { + this.canvas = canvas + this.squareWidth = squareWidth + this.apple = -1 + this.toAdd = 0; + this.direction = 0; + this.stopGame = stopGame + + this.squares = {} + for (let i = 0; i < canvas.width / squareWidth; i += 1) { + for (let j = 0; j < canvas.height / squareWidth; j += 1) { + this.squares[i + j * canvas.width / squareWidth] = false; + } + } + + this.body = [new Square(0, 0)] + this.squares[0] = true; + + let ctx = this.canvas.getContext('2d') + ctx.fillStyle = 'black' + ctx.fillRect(0, 0, squareWidth, squareWidth) + + this.drawApple() + } + + drawApple() { + let available = Object.entries(this.squares).filter((v) => !v[1]) + if (available.length == 0) { + this.stopGame(true, this.body.length) + } + + let sq = available[Math.floor(Math.random() * available.length)][0] + let ctx = this.canvas.getContext('2d') + ctx.fillStyle = 'red' + ctx.fillRect((sq % (this.canvas.width / this.squareWidth)) * this.squareWidth, Math.floor((sq / (this.canvas.width / this.squareWidth))) * this.squareWidth, this.squareWidth, this.squareWidth) + this.apple = sq + } + + // return false if the new coordinates intersect with a snake body part or the edge of the board + positionValid(x, y) { + if (x >= this.canvas.width / this.squareWidth || x < 0 || y < 0 || y >= this.canvas.height / this.squareWidth) + return false + + return !this.squares[x + y * this.canvas.width / this.squareWidth] + } + + // Store all of the sqaures that the snake takes up in a list (of coordinates) + // every frame, remove the last square and draw the square at the start of the new direction + draw() { + let ctx = this.canvas.getContext('2d') + + // calculate the new position: + let front = this.body[this.body.length - 1] + let newX = (this.direction % 2) * (2 - this.direction) + front.x + let newY = (this.direction % 2 - 1) * (1 - this.direction) + front.y + + // check if newX and Y are valid + if (!this.positionValid(newX, newY)) + this.stopGame(false, this.body.length) + + if (newX + newY * this.canvas.width / this.squareWidth == this.apple) { + this.toAdd += 5 + this.drawApple() + } + + if (this.toAdd == 0) { + // remove the last square from our list + let lastSquare = this.body.shift() + this.squares[lastSquare.x + lastSquare.y * this.canvas.width / this.squareWidth] = false; + ctx.clearRect(lastSquare.x * this.squareWidth, lastSquare.y * this.squareWidth, this.squareWidth, this.squareWidth) + } else { + this.toAdd-- + } + + // create a new square at the front + let newFront = new Square(newX, newY) + this.body.push(newFront) + + this.squares[newFront.x + newFront.y * this.canvas.width / this.squareWidth] = true; + ctx.fillStyle = 'black' + ctx.fillRect(newX * this.squareWidth, newY * this.squareWidth, this.squareWidth, this.squareWidth) + } + +} + +// Represents a square in the grid (accounting for width) +class Square { + constructor(x, y) { + this.x = x; + this.y = y; + } +} diff --git a/public/js/queue.js b/public/js/queue.js new file mode 100644 index 00000000..9a38bc7a --- /dev/null +++ b/public/js/queue.js @@ -0,0 +1,2 @@ +//code.iamkate.com +export function Queue(){var a=[],b=0;this.getLength=function(){return a.length-b};this.isEmpty=function(){return 0==a.length};this.enqueue=function(b){a.push(b)};this.dequeue=function(){if(0!=a.length){var c=a[b];2*++b>=a.length&&(a=a.slice(b),b=0);return c}};this.peek=function(){return 0 Date: Mon, 4 Oct 2021 02:22:35 -0400 Subject: [PATCH 2/4] fix difficulty --- public/js/index.js | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/public/js/index.js b/public/js/index.js index 2e11aff4..ea0f8c34 100644 --- a/public/js/index.js +++ b/public/js/index.js @@ -1,7 +1,7 @@ var speedMap = { - 75: 'Easy', - 100: 'Medium', - 125: 'Hard' + 50: 'Hard', + 75: 'Medium', + 100: 'Easy' } // map from key to direction @@ -51,9 +51,9 @@ jQuery(() => { let s = localStorage.getItem('speed') || 100; setSpeed(s) - $('#easy-button').on('click', () => setSpeed(75)) - $('#med-button').on('click', () => setSpeed(100)) - $('#hard-button').on('click', () => setSpeed(125)) + $('#easy-button').on('click', () => setSpeed(100)) + $('#med-button').on('click', () => setSpeed(75)) + $('#hard-button').on('click', () => setSpeed(50)) var startGame = () => { gameStarted = true; From 4c0aba023686929f7b8a9bc5eb3e40a72071ed2a Mon Sep 17 00:00:00 2001 From: mgovilla Date: Mon, 4 Oct 2021 02:30:21 -0400 Subject: [PATCH 3/4] final readme --- README.md | 60 ++++++++----------------------------------------------- 1 file changed, 8 insertions(+), 52 deletions(-) diff --git a/README.md b/README.md index 3ae10a92..f8de05fd 100644 --- a/README.md +++ b/README.md @@ -3,59 +3,15 @@ Assignment 4 - Creative Coding: Interactive Multimedia Experiences Due: October 4th, by 11:59 AM. -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. - -[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 +## Snake Game 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: +Created a web page to play snake online with the canvas API that allows 2d graphics for any modern browser. +- Goal: implement snake with just plain javascript +- Challenges: + - Working with the canvas api presented issues with floating point numbers + - Trying to minimize the number of redrawn components took some extra work + - Ensuring that an apple would not spawn on the snake also required a separate data structure -- 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. +Use WASD keys to move and get as many apples as possible! From 3a7b1f5e76a7735ab9d9df0b88ea233719c104ae Mon Sep 17 00:00:00 2001 From: mgovilla Date: Mon, 4 Oct 2021 02:31:04 -0400 Subject: [PATCH 4/4] add link --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index f8de05fd..9f3373e9 100644 --- a/README.md +++ b/README.md @@ -5,7 +5,7 @@ Due: October 4th, by 11:59 AM. ## Snake Game -your hosting link e.g. http://a4-charlieroberts.glitch.me +Link: https://a4-mgovilla.glitch.me/ Created a web page to play snake online with the canvas API that allows 2d graphics for any modern browser. - Goal: implement snake with just plain javascript