The document provides instructions for building a basic space shooter game using JavaScript and canvas. It demonstrates how to load assets like images, handle input events from keyboard keys to control player movement, create enemy objects that move across the screen, detect collisions between lasers and enemies, and add game states to track lives and score. The game loop redraws the game objects on an interval to animate their movement. Event handling is implemented through an event emitter to avoid messy code. The final sections provide a demo of the moving game elements and lasers firing, along with tips for continuing to learn game development.
Test Driven Game Development with Cocos2d.
This is the first part of my 8th Light University talk on how to effectively write unit tests for game development. We're using Cocos2d for the framework, but the principles apply to most game frameworks.
Test Driven Game Development with Cocos2d.
This is the first part of my 8th Light University talk on how to effectively write unit tests for game development. We're using Cocos2d for the framework, but the principles apply to most game frameworks.
In this presentation, I give an introduction to Windows PowerShell:
- What is it, and how does it work?
- How can you extend it to provide support for administering your own product or project?
NOTES:
1) Some of the text in this presentation is a little small for reading in a 400 pixel flash viewer. I'd recommend downloading the presentation instead.
2) The slides might not make sense without the notes that go with them. I've added the notes as comments to each slide. They still might not make much sense, but that's a different problem :-)
Praktik Pengembangan Konten E-Learning HTML5 SederhanaMuhammad Yusuf
Praktik sederhana pengembangan konten E-Learning yang menggunakan HTML5 sebagai dasar pengembangannya. Pada akhir pengembangan dilakukan penyesuaian konten untuk memenuhi standar SCORM sehingga hasil akhir kontennya adalah sebuah konten yang mendukung standar SCORM dan siap dikonsumsi oleh LMS. Library yang digunakan adalah CreateJS.
An introduction to making browser based games in JavaScript and HTML5.
This workshop was presented at an open day for the Academy of Interactive Entertainment in Sydney, Australia on November 17, 2012.
JavaScript Advanced - Useful methods to power up your codeLaurence Svekis ✔
Get this Course
https://www.udemy.com/javascript-course-plus/?couponCode=SLIDESHARE
Useful methods and JavaScript code snippets power up your code and make even more happen with it.
This course is perfect for anyone who has fundamental JavaScript experience and wants to move to the next level. Use and apply more advanced code, and do more with JavaScript.
Everything you need to learn more about JavaScript
Source code is included
60+ page Downloadable PDF guide with resources and code snippets
3 Challenges to get you coding try the code
demonstrating useful JavaScript methods that can power up your code and make even more happen with it.
Course lessons will cover
JavaScript Number Methods
JavaScript String Methods
JavaScript Math - including math random
DOMContentLoaded - DOM ready when the document has loaded.
JavaScript Date - Date methods and how to get set and use date.
JavaScript parse and stringify - strings to objects back to strings
JavaScript LocalStorage - store variables in the user browser
JavaScript getBoundingClientRect() - get the dimensions of an element
JavaScript Timers setTimeout() setInterval() requestAnimationFrame() - Run code when you want too
encodeURIComponent - encoding made easy
Regex - so powerful use it to get values from your string
prototype - extend JavaScript objects with customized powers
Try and catch - perfect for error and testing
Fetch xHR requests - bring content in from servers
and more
No libraries, no shortcuts just learning JavaScript making it DYNAMIC and INTERACTIVE web application.
Step by step learning with all steps included.
In this presentation, I give an introduction to Windows PowerShell:
- What is it, and how does it work?
- How can you extend it to provide support for administering your own product or project?
NOTES:
1) Some of the text in this presentation is a little small for reading in a 400 pixel flash viewer. I'd recommend downloading the presentation instead.
2) The slides might not make sense without the notes that go with them. I've added the notes as comments to each slide. They still might not make much sense, but that's a different problem :-)
Praktik Pengembangan Konten E-Learning HTML5 SederhanaMuhammad Yusuf
Praktik sederhana pengembangan konten E-Learning yang menggunakan HTML5 sebagai dasar pengembangannya. Pada akhir pengembangan dilakukan penyesuaian konten untuk memenuhi standar SCORM sehingga hasil akhir kontennya adalah sebuah konten yang mendukung standar SCORM dan siap dikonsumsi oleh LMS. Library yang digunakan adalah CreateJS.
An introduction to making browser based games in JavaScript and HTML5.
This workshop was presented at an open day for the Academy of Interactive Entertainment in Sydney, Australia on November 17, 2012.
JavaScript Advanced - Useful methods to power up your codeLaurence Svekis ✔
Get this Course
https://www.udemy.com/javascript-course-plus/?couponCode=SLIDESHARE
Useful methods and JavaScript code snippets power up your code and make even more happen with it.
This course is perfect for anyone who has fundamental JavaScript experience and wants to move to the next level. Use and apply more advanced code, and do more with JavaScript.
Everything you need to learn more about JavaScript
Source code is included
60+ page Downloadable PDF guide with resources and code snippets
3 Challenges to get you coding try the code
demonstrating useful JavaScript methods that can power up your code and make even more happen with it.
Course lessons will cover
JavaScript Number Methods
JavaScript String Methods
JavaScript Math - including math random
DOMContentLoaded - DOM ready when the document has loaded.
JavaScript Date - Date methods and how to get set and use date.
JavaScript parse and stringify - strings to objects back to strings
JavaScript LocalStorage - store variables in the user browser
JavaScript getBoundingClientRect() - get the dimensions of an element
JavaScript Timers setTimeout() setInterval() requestAnimationFrame() - Run code when you want too
encodeURIComponent - encoding made easy
Regex - so powerful use it to get values from your string
prototype - extend JavaScript objects with customized powers
Try and catch - perfect for error and testing
Fetch xHR requests - bring content in from servers
and more
No libraries, no shortcuts just learning JavaScript making it DYNAMIC and INTERACTIVE web application.
Step by step learning with all steps included.
Ember.js Tokyo event 2014/09/22 (English)Yuki Shimada
This is the slide shown at Ember.js Tokyo event.
http://emberjs.doorkeeper.jp/events/14856
(Japanese Version: http://www.slideshare.net/yukishimada1/emberjs-event-tokyo-ja-20140922 )
KSS, the new Ajax framework for Plone 3 comes with great components by default. But what if you need to integrate it with legacy Javascript? Or maybe you want to integrate that nice library/widget you found on the web. During this talk I will show you where you can extend KSS and how to do it. You can watch me create both the server side and client side code needed to integrate an existing piece of Javascript. After this talk KSS should have no limits for you.
create file name as board.javawrite below codeimport java.aw.pdfproloyankur01
100 DIM C(50) (50 is max number of servers) 110 INPUT S,NSTOP (S,NSTOP = number of
servers, customers to be
simulated) 120 FOR D=1 TO NSTOP 130 IA= (IA = interarrival time) 140 A=A+IA (A =
arrival time)
150 J=0 160 J=J+1 (J = index of server being probed) 170 IF J=S+1 THEN K=K+1 (K =
number of customers that are blocked) 180 IF J=S+1 THEN 270 190 IF AA THEN AB=AB+M-
A (AB = cumulative time during which all servers
busy) 270 NEXT D 280 PRINT K/NSTOP,AB/A (fraction of customers blocked, fraction of
time all servers are simultaneously busy)
Solution
100 DIM C(50) (50 is max number of servers) 110 INPUT S,NSTOP (S,NSTOP = number of
servers, customers to be
simulated) 120 FOR D=1 TO NSTOP 130 IA= (IA = interarrival time) 140 A=A+IA (A =
arrival time)
150 J=0 160 J=J+1 (J = index of server being probed) 170 IF J=S+1 THEN K=K+1 (K =
number of customers that are blocked) 180 IF J=S+1 THEN 270 190 IF AA THEN AB=AB+M-
A (AB = cumulative time during which all servers
busy) 270 NEXT D 280 PRINT K/NSTOP,AB/A (fraction of customers blocked, fraction of
time all servers are simultaneously busy).
This presentation introduces developers to the functionality of the HTML5 canvas tag. It runs from getting started (slow start) to more comprehensive examples designed to be inspirational in nature. This presentation is not designed to make you an expert with canvas, but to introduce developers to the wealth of possibilities.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
Heap sort is a comparison-based sorting technique based on Binary Heap data structure. It is similar to the selection sort where we first find the minimum element and place the minimum element at the beginning. Repeat the same process for the remaining elements.
3. Recap, game dev
in your browser
// draws a red rectangle
//1. get the canvas reference
canvas = document.getElementById("myCanvas");
//2. set the context to 2D to draw basic shapes
ctx = canvas.getContext("2d");
//3. fill it with the color red
ctx.fillStyle = 'red’;
//4. and draw a rectangle with these parameters,
setting location and size
ctx.fillRect(0,0, 200, 200) // x,y,width, height
4. Draw on the web
• JavaScript, the programming language
• Canvas, we can paint things on it like:
• Images
• Primitives like rectangles
• Let’s paint someting:
index.html
app.js
<html>
<head></head>
<body>
<canvas id="myCanvas" width="200"
height="100">
</canvas>
<script src=”app.js”></script>
</body>
</html>
// draws a red rectangle
//1. get the canvas reference
canvas = document.getElementById("myCanvas")
//2. set the context to 2D to draw basic sha
ctx = canvas.getContext("2d");
//3. fill it with the color red
ctx.fillStyle = 'red’;
//4. and draw a rectangle with these paramet
setting location and size
ctx.fillRect(0,0, 200, 200) // x,y,width, he
5. Get started on the space game project
• https://github.com/microsoft/Web-Dev-For-Beginners
• Unzip
• Download VS Code, https://code.visualstudio.com/download
• Install Live Server Extension
6. Our project
• index.html
• app.js
• hero.png
<html>
<head></head>
<body>
<canvas id="myCanvas" width="200"
height="100">
</canvas>
<script src=”app.js”></script>
</body>
</html>
function loadAsset(path) {
return new Promise((resolve) => {
const img = new Image();
img.src = path;
img.onload = () => {
// image loaded and ready to be used
resolve(img);
}
})
}
async function run() {
const heroImg = await
loadAsset('hero.png’)
canvas =
document.getElementById("myCanvas");
ctx = canvas.getContext("2d");
ctx.drawImage(heroImg,
canvas.width/2,canvas.height/2);
}
run();
7. Space game, set up
• Load asset (your ship)
• Let’s paint an image, your ship
function loadAsset(path) {
return new Promise((resolve) => {
const img = new Image();
img.src = path;
img.onload = () => {
// image loaded and ready to be used
resolve(img);
}
})
}
async function run() {
const heroImg = await loadAsset('hero.png’)
canvas = document.getElementById("myCanvas");
ctx = canvas.getContext("2d");
ctx.drawImage(heroImg,
canvas.width/2,canvas.height/2);
}
run();
8. Run our
project
• Install VS Code
• Install Live server
extension
• View > Command palette
• Live Server: Open with
Live Server
9. Drawing hero and enemies
window.onload = async() => {
canvas = document.getElementById("canvas");
ctx = canvas.getContext("2d");
const heroImg = await loadTexture('assets/player.png’)
const enemyImg = await loadTexture('assets/enemyShip.png’)
ctx.fillStyle = 'black’;
ctx.fillRect(0,0, canvas.width, canvas.height);
ctx.drawImage(heroImg, canvas.width/2 - 45, canvas.height -
(canvas.height /4));
createEnemies(ctx, canvas, enemyImg);
};
function createEnemies(ctx, canvas, enemyImg) {
const MONSTER_TOTAL = 5;
const MONSTER_WIDTH = MONSTER_TOTAL * 98;
const START_X = (canvas.width - MONSTER_WIDTH) / 2;
const STOP_X = START_X + MONSTER_WIDTH;
for (let x = START_X; x < STOP_X; x += 98) {
for (let y = 0; y < 50 * 5; y += 50) {
ctx.drawImage(enemyImg, x, y);
}
}
}
function loadTexture(path) {
return new Promise((resolve) => {
const img = new Image();
img.src = path;
img.onload = () => {
resolve(img);
}})
}
10. Let’s make it move
• User key press
• Game moves enemies at
regular intervals
• Change position of ship and
enemies
• Redraw
12. Event emitter – avoid messy code
Event
emitter
Pressing space
Enter
Arrow keys
Move hero
Shoot
Restart game
Capture keypress
Raise event
13. Event emitter, listen for events, send them
where they need to go
class EventEmitter {
constructor() {
this.listeners = {};
}
on(message, listener) {
if (!this.listeners[message]) {
this.listeners[message] = [];
}
this.listeners[message].push(listener);
}
emit(message, payload = null) {
if (this.listeners[message]) {
this.listeners[message].forEach((l) => l(message,
payload));
}
}
22. Summary
• We’ve learned to make games in MakeCode, we saw how to add gravity
• You’ve been introduced to coding in JavaScript and for the Web
• What’s next? Keep building games, start with MakeCode, start looking at the code
tab (instead of the block), modify, that’s how I started
• Pick up programming, https://github.com/microsoft/Web-Dev-For-Beginners
• https://www.w3schools.com/
• Look at these https://github.com/leereilly/games learn to read code, modify
• Super Mario in JavaScript, https://github.com/robertkleffner/mariohtml5
• It takes months to get good at coding, years to be a game dev, don’t forget to
have fun
• Here is the space game as MakeCode, https://makecode.com/_98TWHKJJ6Jt4 lot
simpler right, go and make it yours, modify, good luck out there
Editor's Notes
DOM tree, what a page is, a list of hierarchical nodes, that we can change
Canvas, what we can point on, also a Node
A canvas a has a contexr, what we actually interact with when we paint something