title
Coding Challenge #46.1: Asteroids with p5.js - Part 1
description
In this two part coding challenge, I use the p5.js library to create my own version of the classic Atari video game Asteroids! Code: https://thecodingtrain.com/challenges/46-asteroids
đšī¸ p5.js Web Editor Sketch: https://editor.p5js.org/codingtrain/sketches/VtYr6E4_M
đĨ Next video: https://youtu.be/JUDYkxU6J0o?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH
đĨ All videos: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH
References:
đ Asteroids on Wikipedia: https://en.wikipedia.org/wiki/Asteroids_(video_game)
Videos:
đĨ Asteroids Part 2: https://youtu.be/xTTuih7P0c0
đĨ Polar Coordinates: https://youtu.be/O5wjXoFrau4
đĨ Livestream Archive: https://youtu.be/VFnF87-JNtY
Related Coding Challenges:
đ #81 Circle Morphing: https://youtu.be/u2D4sxh3MTs
Timestamps:
0:00 Introducing today's topic: coding the classic Atari game Asteroids
1:54 Create a Ship object
5:56 Write a function to turn the ship
9:54 Move the ship by adding velocity and acceleration vectors
16:51 Deal with the edges of the screen
19:32 Create an array of asteroids
22:12 Add push and pop to save the ship's heading
24:41 Use polar to cartesian coordinates to get the vertices on the asteroids
27:52 Offset the vertices by a random value to create jagged asteroids
30:05 Move the asteroids
Editing by Mathieu Blanchette
Animations by Jason Heglund
Music from Epidemic Sound
đ Website: http://thecodingtrain.com/
đž Share Your Creation! https://thecodingtrain.com/guides/passenger-showcase-guide
đŠ Suggest Topics: https://github.com/CodingTrain/Suggestion-Box
đĄ GitHub: https://github.com/CodingTrain
đŦ Discord: https://discord.gg/hPuGy2g
đ Membership: http://youtube.com/thecodingtrain/join
đ Store: https://standard.tv/codingtrain
đī¸ Twitter: https://twitter.com/thecodingtrain
đ¸ Instagram: https://www.instagram.com/the.coding.train/
đĨ Coding Challenges: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH
đĨ Intro to Programming: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6Zy51Q-x9tMWIv9cueOFTFA
đ p5.js: https://p5js.org
đ p5.js Web Editor: https://editor.p5js.org/
đ Processing: https://processing.org
đ Code of Conduct: https://github.com/CodingTrain/Code-of-Conduct
This description was auto-generated. If you see a problem, please open an issue: https://github.com/CodingTrain/thecodingtrain.com/issues/new
#atariasteroids #polartocartesiancoordinates #p5js #javascript
detail
{'title': 'Coding Challenge #46.1: Asteroids with p5.js - Part 1', 'heatmap': [{'end': 252.254, 'start': 195.6, 'weight': 0.929}, {'end': 425.697, 'start': 376.592, 'weight': 0.725}, {'end': 766.139, 'start': 747.973, 'weight': 0.843}], 'summary': "Series on asteroids coding challenge using p5.js library in javascript includes creating a game, implementing ship movement and control, handling object wrapping, rendering asteroids, transforming coordinates, and generating procedural asteroids, with a focus on suraj's bot training and demonstrating various programming functionalities.", 'chapters': [{'end': 75.922, 'segs': [{'end': 37.965, 'src': 'embed', 'start': 0.189, 'weight': 0, 'content': [{'end': 2.47, 'text': 'Pew, pew, pew, pew! Okay, hi everyone.', 'start': 0.189, 'duration': 2.281}, {'end': 10.072, 'text': 'I just did a coding challenge where I programmed this game from scratch using the p5.js library in JavaScript.', 'start': 3.37, 'duration': 6.702}, {'end': 14.954, 'text': "And in a moment, I'm going to travel back into time and you're going to watch that coding challenge.", 'start': 10.313, 'duration': 4.641}, {'end': 15.914, 'text': 'This is the end result.', 'start': 14.994, 'duration': 0.92}, {'end': 18.635, 'text': "I'm doing this after I actually did it, recording this part.", 'start': 15.954, 'duration': 2.681}, {'end': 20.996, 'text': "The reason why I'm doing that is I want to mention something to you.", 'start': 18.936, 'duration': 2.06}, {'end': 24.858, 'text': "I want to tell you about Suraj's channel, Surajology.", 'start': 21.436, 'duration': 3.422}, {'end': 32.822, 'text': "Suraj makes video tutorials about machine learning and Now that I've done this coding challenge, I'm going to pass this game off to Suraj.", 'start': 25.578, 'duration': 7.244}, {'end': 36.224, 'text': 'And Suraj is going to train a bot to play it and get a high score.', 'start': 33.122, 'duration': 3.102}, {'end': 37.965, 'text': "Now the game doesn't actually have the score features yet.", 'start': 36.244, 'duration': 1.721}], 'summary': 'Programmed a game using p5.js, passing it to suraj for bot training.', 'duration': 37.776, 'max_score': 0.189, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM189.jpg'}], 'start': 0.189, 'title': 'Asteroids coding challenge', 'summary': "Demonstrates a coding challenge using p5.js library in javascript. it involves programming a game and passing it to suraj for bot training. viewers are invited to check suraj's video for the bot's performance.", 'chapters': [{'end': 75.922, 'start': 0.189, 'title': 'Asteroids coding challenge with p5.js', 'summary': "Demonstrates a coding challenge where the speaker programs a game using the p5.js library in javascript, plans to pass the game to suraj for training a bot to play it, and invites viewers to check suraj's video for the bot's performance.", 'duration': 75.733, 'highlights': ['The speaker demonstrates a coding challenge where he programs a game using the p5.js library in JavaScript.', "The speaker plans to pass the game to Suraj for training a bot to play it and invites viewers to check Suraj's video for the bot's performance.", "The game doesn't have score features yet, but the speaker plans to add them in later."]}], 'duration': 75.733, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM189.jpg', 'highlights': ['The speaker demonstrates a coding challenge using p5.js library in JavaScript.', "The speaker plans to pass the game to Suraj for training a bot and invites viewers to check Suraj's video for the bot's performance.", "The game doesn't have score features yet, but the speaker plans to add them in later."]}, {'end': 483.131, 'segs': [{'end': 102.761, 'src': 'embed', 'start': 77.443, 'weight': 0, 'content': [{'end': 83.107, 'text': "Not entirely from scratch, because I'm going to use a framework called p5.js that has a lot of hooks in it for drawing and animation.", 'start': 77.443, 'duration': 5.664}, {'end': 87.35, 'text': "But the actual game mechanics, I'm going to just sort of figure out on the fly.", 'start': 83.467, 'duration': 3.883}, {'end': 91.113, 'text': "I haven't done this before, and we'll see what happens.", 'start': 87.87, 'duration': 3.243}, {'end': 96.676, 'text': "If you want to know how long this takes, just look at how long this video is, and then you'll know.", 'start': 91.213, 'duration': 5.463}, {'end': 100.98, 'text': "But I don't know, because I can't time travel into the future, although if someone could figure that out for me,", 'start': 97.177, 'duration': 3.803}, {'end': 102.761, 'text': 'it would be very helpful for a lot of things I need.', 'start': 100.98, 'duration': 1.781}], 'summary': 'Using p5.js framework for drawing and animation, with uncertain development time.', 'duration': 25.318, 'max_score': 77.443, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM77443.jpg'}, {'end': 153.517, 'src': 'embed', 'start': 112.687, 'weight': 1, 'content': [{'end': 114.649, 'text': 'that you can kind of like turn and then push around.', 'start': 112.687, 'duration': 1.962}, {'end': 122.955, 'text': "So what I'm going to do to do that is, I'm going to create a ship object, and the framework that I'm using is called p5.js,", 'start': 114.989, 'duration': 7.966}, {'end': 131.141, 'text': 'which has a lot of things that will allow me to draw the triangle pretty easily, but it also has a vector object built into it.', 'start': 122.955, 'duration': 8.186}, {'end': 140.608, 'text': "so something that I want this ship to have is a position, and I'm gonna have that position start at the center of the screen,", 'start': 131.141, 'duration': 9.467}, {'end': 153.517, 'text': "which is width divided by two and height divided by two, and then I'm gonna write a function called render, where I draw the ship as a triangle.", 'start': 140.608, 'duration': 12.909}], 'summary': 'Using p5.js to create a ship object and draw a triangle at the center of the screen.', 'duration': 40.83, 'max_score': 112.687, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM112687.jpg'}, {'end': 272.172, 'src': 'heatmap', 'start': 195.6, 'weight': 3, 'content': [{'end': 210.852, 'text': 'What am I looking over there? Negative this.r, negative this.r, this.r, a lot of this dots, this.r, this.r, and then zero negative this.r.', 'start': 195.6, 'duration': 15.252}, {'end': 223.312, 'text': "So what I want now is to create a variable, this is just to get the ship, called ship, And then I'm going to say ship equals new ship.", 'start': 211.793, 'duration': 11.519}, {'end': 230.718, 'text': 'This calls this constructor function and creates an object that has a position, an r value, and a function called render.', 'start': 224.233, 'duration': 6.485}, {'end': 234.04, 'text': 'So I can now say ship.render.', 'start': 230.998, 'duration': 3.042}, {'end': 237.623, 'text': "And I can run this code, and we'll see what we've got.", 'start': 234.981, 'duration': 2.642}, {'end': 243.508, 'text': "Look, there's a nice little triangle, but it's up there in the top left corner because I didn't actually use the position.", 'start': 238.104, 'duration': 5.404}, {'end': 247.031, 'text': 'So something I can do in p5 is I can say translate.', 'start': 243.788, 'duration': 3.243}, {'end': 252.254, 'text': 'The translate function translates the coordinate system by an x and a y value.', 'start': 247.611, 'duration': 4.643}, {'end': 254.716, 'text': 'Vectors have an x and a y value.', 'start': 252.614, 'duration': 2.102}, {'end': 260.8, 'text': 'So I can say translate by x and a y, which essentially will position the ship now where it actually is.', 'start': 254.736, 'duration': 6.064}, {'end': 262.221, 'text': 'So I now have that triangle there.', 'start': 260.86, 'duration': 1.361}, {'end': 264.382, 'text': 'I could make it a little bit bigger.', 'start': 262.241, 'duration': 2.141}, {'end': 272.172, 'text': 'I could also say, I could also say, no fill and stroke 255.', 'start': 264.402, 'duration': 7.77}], 'summary': 'Creation of a ship object with a position, r value, and render function using p5, then positioning it and adjusting its appearance.', 'duration': 47.939, 'max_score': 195.6, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM195600.jpg'}, {'end': 425.697, 'src': 'heatmap', 'start': 376.592, 'weight': 0.725, 'content': [{'end': 384.699, 'text': 'So I can say, ah, maybe this needs a, an angle value that it turns by, and I say heading plus equals angle.', 'start': 376.592, 'duration': 8.107}, {'end': 391.886, 'text': "So any time I call this function this.turn, any time I call this function ship.turn, it'll turn the ship.", 'start': 384.9, 'duration': 6.986}, {'end': 396.81, 'text': 'So, for example, if in the draw loop draw is a p5 has a draw loop that animates over and over again.', 'start': 392.166, 'duration': 4.644}, {'end': 404.798, 'text': 'if I were just to say ship.turn 0.1,, we could see ah, okay, heading is not defined.', 'start': 396.81, 'duration': 7.988}, {'end': 410.988, 'text': 'Ah! I always forget this dot.', 'start': 405.979, 'duration': 5.009}, {'end': 416.251, 'text': 'So I think, where did I forget that? This dot heading plus equals angle.', 'start': 411.508, 'duration': 4.743}, {'end': 419.393, 'text': 'There we go, now I have my ship spinning.', 'start': 416.271, 'duration': 3.122}, {'end': 425.697, 'text': "Yes, okay, but I don't want it to just spin randomly, I want it to spin if I am pressing the right arrow key.", 'start': 420.334, 'duration': 5.363}], 'summary': 'Creating a function to turn a ship by a specific angle and linking it to key press events.', 'duration': 49.105, 'max_score': 376.592, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM376592.jpg'}], 'start': 77.443, 'title': 'Creating asteroids game and rotating ship object', 'summary': 'Involves using p5.js to create an asteroids game, with the duration indicated by the length of the video, and demonstrates creating a ship object, setting its position, rendering it as a triangle, and enabling smooth rotation by pressing the arrow keys.', 'chapters': [{'end': 112.687, 'start': 77.443, 'title': 'Creating asteroids game with p5.js', 'summary': 'Involves using the p5.js framework to create an asteroids game, where the game mechanics are to be figured out during the process, with the duration of the process indicated by the length of the video.', 'duration': 35.244, 'highlights': ['Using p5.js framework to create Asteroids game with customized game mechanics.', 'Indicating the duration of the process by the length of the video.', 'Programming the spaceship as the first step in the game development.']}, {'end': 483.131, 'start': 112.687, 'title': 'Creating and rotating a ship object', 'summary': 'Demonstrates creating a ship object using p5.js, setting its position, rendering it as a triangle, and enabling rotation by pressing the arrow keys, achieving a smooth spinning motion.', 'duration': 370.444, 'highlights': ['The chapter demonstrates creating a ship object using p5.js, which includes defining its position at the center of the screen, rendering it as a triangle, and enabling rotation by pressing the arrow keys, achieving a smooth spinning motion.', 'The ship object is created with a position and an r value, and a function called render, which draws the ship as a triangle on the screen.', 'The translate function is used to position the ship at its designated coordinates, and the noFill and stroke 255 commands are used to outline the triangle in white, resulting in a visually appealing, centered triangle.', "The ship's rotation is controlled by the heading variable, which is adjusted using the turn function, allowing the ship to smoothly rotate when the right or left arrow keys are pressed."]}], 'duration': 405.688, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM77443.jpg', 'highlights': ['Using p5.js framework to create Asteroids game with customized game mechanics.', 'The chapter demonstrates creating a ship object using p5.js, including defining its position and enabling smooth rotation.', 'Indicating the duration of the process by the length of the video.', 'The ship object is created with a position and an r value, and a function called render, which draws the ship as a triangle on the screen.', 'The translate function is used to position the ship at its designated coordinates, and the noFill and stroke 255 commands are used to outline the triangle in white, resulting in a visually appealing, centered triangle.']}, {'end': 993.371, 'segs': [{'end': 558.117, 'src': 'embed', 'start': 483.671, 'weight': 0, 'content': [{'end': 486.253, 'text': "I'm going to make a global variable.", 'start': 483.671, 'duration': 2.582}, {'end': 488.775, 'text': 'I could probably package this in the object a bit better.', 'start': 486.273, 'duration': 2.502}, {'end': 490.297, 'text': "And actually, I'm going to.", 'start': 488.796, 'duration': 1.501}, {'end': 496.934, 'text': "I'm going to make a variable in the object called this dot rotation and set it equal to zero.", 'start': 491.61, 'duration': 5.324}, {'end': 506.081, 'text': 'And this dot turn actually just always turns it by that rotation amount.', 'start': 497.535, 'duration': 8.546}, {'end': 517.144, 'text': "And then I'm going to say this dot set rotation is a function that receives an angle, and then this tut rotation equals that angle.", 'start': 506.742, 'duration': 10.402}, {'end': 520.485, 'text': 'So now what I want to do is when I press the key, I want to set the rotation.', 'start': 517.484, 'duration': 3.001}, {'end': 522.506, 'text': 'When I release the key, I want to unset it.', 'start': 520.506, 'duration': 2}, {'end': 526.629, 'text': 'Because I want to handle the key pressed and released differently.', 'start': 522.886, 'duration': 3.743}, {'end': 543.062, 'text': 'So now I can say, here, set rotation 0.1, set rotation negative 0.1, and if I add an event for key released, Now I can say ship.setRotation zero.', 'start': 526.989, 'duration': 16.073}, {'end': 547.126, 'text': "So now this should, oh it didn't work.", 'start': 544.323, 'duration': 2.803}, {'end': 550.392, 'text': "So what did I miss? I've got a bug here.", 'start': 548.351, 'duration': 2.041}, {'end': 556.496, 'text': 'It was a nice idea, right? Oh, you know what I forgot to do? I forgot to call ship.turn.', 'start': 550.412, 'duration': 6.084}, {'end': 558.117, 'text': 'So I always have to turn it.', 'start': 556.776, 'duration': 1.341}], 'summary': 'Code debugging process to set and unset rotation in object, handling key press and release events.', 'duration': 74.446, 'max_score': 483.671, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM483671.jpg'}, {'end': 641.47, 'src': 'embed', 'start': 609.004, 'weight': 3, 'content': [{'end': 610.966, 'text': 'So I need to add two concepts to the ship.', 'start': 609.004, 'duration': 1.962}, {'end': 614.808, 'text': 'I need to add the concept of a velocity, which changes its position.', 'start': 611.346, 'duration': 3.462}, {'end': 617.771, 'text': 'But I also need to add this concept of an acceleration.', 'start': 615.189, 'duration': 2.582}, {'end': 621.013, 'text': "I don't actually, the acceleration is the thing that changes the velocity.", 'start': 617.791, 'duration': 3.222}, {'end': 625.256, 'text': 'So when I press up, which is like a boost, Thrust or boost onto the ship.', 'start': 621.053, 'duration': 4.203}, {'end': 628.679, 'text': "It's like a force that pushes it and it starts to move.", 'start': 625.537, 'duration': 3.142}, {'end': 632.342, 'text': "So let's see how we can add that both of those things will also be vectors.", 'start': 628.679, 'duration': 3.663}, {'end': 636.626, 'text': 'So if I go back to the code boy, asteroids is much more complicated than I imagine.', 'start': 632.342, 'duration': 4.284}, {'end': 641.47, 'text': 'still only on the ship, this dot velocity equals.', 'start': 636.626, 'duration': 4.844}], 'summary': 'Adding velocity and acceleration as vectors to the ship for movement.', 'duration': 32.466, 'max_score': 609.004, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM609004.jpg'}, {'end': 768.96, 'src': 'heatmap', 'start': 747.973, 'weight': 0.843, 'content': [{'end': 757.6, 'text': "So now, I need to add else if key code equals up arrow, that'll be my key for boosting it, ship.boost.", 'start': 747.973, 'duration': 9.627}, {'end': 760.743, 'text': "So let's see how this goes.", 'start': 758.881, 'duration': 1.862}, {'end': 766.139, 'text': 'Now if I press the up key, oh, heading is not defined.', 'start': 762.458, 'duration': 3.681}, {'end': 768.96, 'text': 'I forgot the this.', 'start': 766.159, 'duration': 2.801}], 'summary': 'Adding else if key code for boosting ship, heading not defined.', 'duration': 20.987, 'max_score': 747.973, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM747973.jpg'}, {'end': 898.334, 'src': 'embed', 'start': 866.904, 'weight': 4, 'content': [{'end': 869.365, 'text': 'So as I accelerate, it kind of slows down and stops.', 'start': 866.904, 'duration': 2.461}, {'end': 870.406, 'text': "Now, I'm doing it too much.", 'start': 869.385, 'duration': 1.021}, {'end': 872.447, 'text': "The other thing is I can't hold down the up key.", 'start': 870.446, 'duration': 2.001}, {'end': 878.331, 'text': 'So I have to do the same exact thing that I did with turning.', 'start': 872.667, 'duration': 5.664}, {'end': 882.033, 'text': 'I need to handle that in ship.', 'start': 878.511, 'duration': 3.522}, {'end': 885.856, 'text': "So what I'm going to do is say ship.boosting true.", 'start': 882.093, 'duration': 3.763}, {'end': 887.329, 'text': "I'm going to change this.", 'start': 886.789, 'duration': 0.54}, {'end': 890.251, 'text': "I'm going to say ship.boosting false.", 'start': 887.349, 'duration': 2.902}, {'end': 898.334, 'text': "And I'm going to create a variable called this.isboosting equals false.", 'start': 891.151, 'duration': 7.183}], 'summary': 'Adjusting ship controls to manage acceleration and boosting.', 'duration': 31.43, 'max_score': 866.904, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM866904.jpg'}, {'end': 998.553, 'src': 'embed', 'start': 969.821, 'weight': 5, 'content': [{'end': 971.202, 'text': 'The friction is too much though.', 'start': 969.821, 'duration': 1.381}, {'end': 973.102, 'text': 'I just wanted to have a little bit of dampening.', 'start': 971.362, 'duration': 1.74}, {'end': 976.324, 'text': "So I'm going to say multiply it by .99.", 'start': 973.583, 'duration': 2.741}, {'end': 976.844, 'text': 'There we go.', 'start': 976.324, 'duration': 0.52}, {'end': 980.085, 'text': "So I've got asteroids here, pretty much.", 'start': 977.624, 'duration': 2.461}, {'end': 984.887, 'text': "I've got the core mechanic now down of driving this triangle around the screen.", 'start': 980.125, 'duration': 4.762}, {'end': 985.967, 'text': 'This is totally fun.', 'start': 984.927, 'duration': 1.04}, {'end': 990.449, 'text': "Okay, now what do I need to do? Boy, there's a lot left to do.", 'start': 987.028, 'duration': 3.421}, {'end': 993.371, 'text': 'I need to add actual asteroids.', 'start': 991.55, 'duration': 1.821}, {'end': 996.152, 'text': 'I also need to deal with the fact that this should wrap around.', 'start': 993.811, 'duration': 2.341}, {'end': 997.413, 'text': "That's kind of an easy problem.", 'start': 996.192, 'duration': 1.221}, {'end': 998.553, 'text': "Let's add that real quick.", 'start': 997.453, 'duration': 1.1}], 'summary': 'Adjusted friction, implemented core mechanic, planning to add asteroids and wrap-around feature.', 'duration': 28.732, 'max_score': 969.821, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM969821.jpg'}], 'start': 483.671, 'title': 'Implementing ship movement and control', 'summary': 'Covers implementing object rotation, movement, velocity, and acceleration, adding thrust to a ship, adjusting rotation, handling boosting/thrusting, and modifying force magnitude for smooth movement, while focusing on key press events, culminating in the need to add asteroids to the game.', 'chapters': [{'end': 583.849, 'start': 483.671, 'title': 'Implementing object rotation and movement', 'summary': 'Discusses implementing object rotation by creating a global variable and a function to set the rotation, handling key press and release events differently, and implementing object movement.', 'duration': 100.178, 'highlights': ['The chapter discusses implementing object rotation by creating a global variable and a function to set the rotation, handling key press and release events differently, and implementing object movement.', "The author creates a global variable called 'this.rotation' and sets it equal to zero for handling object rotation.", "The chapter emphasizes handling key press and release events differently to set and unset the object's rotation.", 'The chapter also mentions the need to implement object movement after handling rotation.']}, {'end': 793.351, 'start': 584.189, 'title': 'Adding thrust to a ship', 'summary': "Discusses adding velocity and acceleration concepts to a ship, using a force to boost its movement in a specific direction based on an angle, and implementing the boost function to update the ship's velocity, with focus on the up arrow key press.", 'duration': 209.162, 'highlights': ['Adding velocity and acceleration concepts to the ship The chapter explains the need to add the concepts of velocity and acceleration to the ship, where acceleration is the factor that changes the velocity.', "Implementing a boost function to update the ship's velocity The chapter details the implementation of a boost function to update the ship's velocity by adding a force in the direction based on the ship's heading, with the aim of boosting its movement.", 'Using a force to push and move the ship The chapter discusses the use of a force, such as a boost, to push and move the ship in a specific direction, thus initiating its movement.']}, {'end': 993.371, 'start': 793.351, 'title': 'Space ship control code', 'summary': 'Discusses implementing control code for a spaceship, adjusting its rotation, adding friction and handling boosting/thrusting, and modifying force magnitude to enable smooth movement, concluding with the need to add actual asteroids to the game.', 'duration': 200.02, 'highlights': ['Implemented rotation adjustment by adding one line of code to rotate the heading by 90 degrees, enabling the spaceship to move in the correct direction. Rotation adjustment by 90 degrees.', "Introduced friction by reducing the velocity magnitude by 5% in the update function, resulting in the spaceship's acceleration slowing down and stopping. Reduction of velocity magnitude by 5% per frame.", "Implemented handling of boosting/thrusting by creating a variable and function to control it, enabling smoother control of the spaceship's movement. Creation of a function for boosting/thrusting.", 'Modified force magnitude by reducing it by 90% to enable smoother movement control, resulting in the spaceship being able to move around the screen. Reduction of force magnitude by 90%.', 'Adjusted friction by multiplying it by 0.99, achieving the desired dampening effect and effectively simulating the movement of asteroids. Multiplication of friction by 0.99.']}], 'duration': 509.7, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM483671.jpg', 'highlights': ["The chapter emphasizes handling key press and release events differently to set and unset the object's rotation.", 'The chapter discusses implementing object rotation by creating a global variable and a function to set the rotation, handling key press and release events differently, and implementing object movement.', 'The chapter also mentions the need to implement object movement after handling rotation.', "The chapter details the implementation of a boost function to update the ship's velocity by adding a force in the direction based on the ship's heading, with the aim of boosting its movement.", "Implemented handling of boosting/thrusting by creating a variable and function to control it, enabling smoother control of the spaceship's movement.", 'Adjusted friction by multiplying it by 0.99, achieving the desired dampening effect and effectively simulating the movement of asteroids.']}, {'end': 1218.258, 'segs': [{'end': 1040.156, 'src': 'embed', 'start': 1013.975, 'weight': 3, 'content': [{'end': 1022.962, 'text': "So I just want to kind of like, if it's, no, plus r, if it's like all the way off the screen, then have its position equal negative r.", 'start': 1013.975, 'duration': 8.987}, {'end': 1032.651, 'text': 'Else. if this.pos.x is less than negative, this.r then have its position get reset to the other side of the screen right?', 'start': 1023.803, 'duration': 8.848}, {'end': 1034.653, 'text': 'So this should do it for x.', 'start': 1032.911, 'duration': 1.742}, {'end': 1037.015, 'text': "Whoops Let's drive off this side.", 'start': 1034.653, 'duration': 2.362}, {'end': 1040.156, 'text': 'Oh, I do this every time.', 'start': 1038.396, 'duration': 1.76}], 'summary': 'Adjust position based on screen and reset if out of bounds.', 'duration': 26.181, 'max_score': 1013.975, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1013975.jpg'}, {'end': 1135.33, 'src': 'embed', 'start': 1099.973, 'weight': 0, 'content': [{'end': 1103.476, 'text': 'So now I should have, I can drive off the top.', 'start': 1099.973, 'duration': 3.503}, {'end': 1107.085, 'text': 'the side, and I can turn around and slow myself down.', 'start': 1104.383, 'duration': 2.702}, {'end': 1107.966, 'text': 'So I can drive around.', 'start': 1107.105, 'duration': 0.861}, {'end': 1108.487, 'text': 'This is fun.', 'start': 1107.986, 'duration': 0.501}, {'end': 1110.729, 'text': 'I really got to not get distracted and keep playing the game.', 'start': 1108.707, 'duration': 2.022}, {'end': 1112.05, 'text': "OK, it's time.", 'start': 1110.969, 'duration': 1.081}, {'end': 1113.251, 'text': "Let's add some asteroids.", 'start': 1112.11, 'duration': 1.141}, {'end': 1117.074, 'text': "Now, one thing I don't love here is that my code is getting to be a little bit unwieldy.", 'start': 1113.531, 'duration': 3.543}, {'end': 1122.239, 'text': "So I want to take this whole ship constructor function, and I'm going to add a new file.", 'start': 1117.394, 'duration': 4.845}, {'end': 1124.561, 'text': "And I'm going to call it ship.js.", 'start': 1122.259, 'duration': 2.302}, {'end': 1127.443, 'text': "And I'm going to put the whole ship constructor function there.", 'start': 1125.001, 'duration': 2.442}, {'end': 1130.066, 'text': "I'm going to make a new file called asteroid.js.", 'start': 1127.463, 'duration': 2.603}, {'end': 1135.33, 'text': 'because I want all the code for the asteroids, things that are flying around, I want to put there.', 'start': 1130.826, 'duration': 4.504}], 'summary': 'Developing a game with ship and asteroid constructor functions, restructuring code into separate files.', 'duration': 35.357, 'max_score': 1099.973, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1099973.jpg'}, {'end': 1204.5, 'src': 'embed', 'start': 1179.35, 'weight': 1, 'content': [{'end': 1184.373, 'text': 'Then what I want to do, just to get started, I want to say asteroids.push, new asteroid.', 'start': 1179.35, 'duration': 5.023}, {'end': 1188.596, 'text': 'Push being a function that adds something to an array, and I forgot two parentheses there.', 'start': 1184.753, 'duration': 3.843}, {'end': 1191.798, 'text': 'So we need to add an asteroid to that list.', 'start': 1188.616, 'duration': 3.182}, {'end': 1197.841, 'text': 'And then in the draw loop, I is less than, I want a loop.', 'start': 1192.218, 'duration': 5.623}, {'end': 1204.5, 'text': "Now, one of the other comments I get constantly on my channel is, why don't you use a for each loop? And maybe someday I will.", 'start': 1197.881, 'duration': 6.619}], 'summary': 'Demonstrating array manipulation and consideration of alternative looping methods.', 'duration': 25.15, 'max_score': 1179.35, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1179350.jpg'}], 'start': 993.811, 'title': 'Handling object wrapping in code and implementing ship and asteroid functions', 'summary': 'Covers handling object wrapping, conditions for repositioning, challenges faced, implementing ship and asteroid functionalities, edge collisions, code organization, and adding multiple asteroids.', 'chapters': [{'end': 1040.156, 'start': 993.811, 'title': 'Handling object wrapping in code', 'summary': 'Describes the process of handling object wrapping in code, specifying the conditions for repositioning an object when it goes off the screen and the challenges faced in the implementation.', 'duration': 46.345, 'highlights': ['The process of handling object wrapping in code is described, including the conditions for repositioning an object when it goes off the screen.', 'Challenges faced in the implementation of repositioning an object when it goes off the screen are mentioned, indicating the tedious nature of the task.', "The code involves adding a function called 'this.edges' to address the wrapping issue and specifying conditions based on the object's position in relation to the screen dimensions.", 'Specific challenges faced during the implementation, such as dealing with the position of the object when it goes off the screen, are highlighted.']}, {'end': 1218.258, 'start': 1041.699, 'title': 'Implementing ship and asteroid functions', 'summary': 'Demonstrates the process of implementing ship and asteroid functionalities, including handling edge collisions, reorganizing code into separate files, and adding multiple asteroids to the screen using an array.', 'duration': 176.559, 'highlights': ['The chapter explains the process of implementing ship and asteroid functionalities, including handling edge collisions, reorganizing code into separate files, and adding multiple asteroids to the screen using an array.', "The code for ship constructor function is reorganized into a new file called 'ship.js', and a new file 'asteroid.js' is created for the asteroid functionalities, with corresponding references added in the index.html file.", 'The process involves handling edge collisions, enabling the ship to drive off the edge and return, and implementing functionalities for driving off the top and the side, with the ability to turn around and slow down.', "The implementation also includes adding multiple asteroids to the screen using an array, with the initial step involving the creation of an array 'asteroids' to store multiple asteroids and using the 'push' function to add new asteroids to the list."]}], 'duration': 224.447, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM993811.jpg', 'highlights': ['The process involves handling edge collisions, enabling the ship to drive off the edge and return, and implementing functionalities for driving off the top and the side, with the ability to turn around and slow down.', "The implementation also includes adding multiple asteroids to the screen using an array, with the initial step involving the creation of an array 'asteroids' to store multiple asteroids and using the 'push' function to add new asteroids to the list.", "The code for ship constructor function is reorganized into a new file called 'ship.js', and a new file 'asteroid.js' is created for the asteroid functionalities, with corresponding references added in the index.html file.", 'The process of handling object wrapping in code is described, including the conditions for repositioning an object when it goes off the screen.']}, {'end': 1439.615, 'segs': [{'end': 1254.437, 'src': 'embed', 'start': 1218.278, 'weight': 0, 'content': [{'end': 1221.342, 'text': "So I'm going to do asteroids index i dot render.", 'start': 1218.278, 'duration': 3.064}, {'end': 1224.203, 'text': 'So notice this is a technique that I often employ.', 'start': 1221.502, 'duration': 2.701}, {'end': 1226.783, 'text': "I haven't actually written any of the code for the asteroid.", 'start': 1224.463, 'duration': 2.32}, {'end': 1228.464, 'text': "I'm just imagining what I need.", 'start': 1227.023, 'duration': 1.441}, {'end': 1233.905, 'text': 'I need an array, I need to make a new one, and then I need to loop through all of them and add and call render.', 'start': 1228.724, 'duration': 5.181}, {'end': 1240.787, 'text': 'So now this gives me kind of a template for what I need to write in this asteroid.js JavaScript file.', 'start': 1234.105, 'duration': 6.682}, {'end': 1243.868, 'text': 'I need to write a constructor function called asteroid.', 'start': 1241.027, 'duration': 2.841}, {'end': 1247.991, 'text': 'I also want the asteroid to have a position, create vector.', 'start': 1244.688, 'duration': 3.303}, {'end': 1254.437, 'text': 'And you know what the position for right now will just be a random spot, random width, random being a p5.js function.', 'start': 1248.051, 'duration': 6.386}], 'summary': 'Plan to create asteroid in javascript with constructor function and position using random values.', 'duration': 36.159, 'max_score': 1218.278, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1218278.jpg'}, {'end': 1311.524, 'src': 'embed', 'start': 1283.05, 'weight': 5, 'content': [{'end': 1284.81, 'text': 'And you know what? We need an r as well.', 'start': 1283.05, 'duration': 1.76}, {'end': 1286.711, 'text': 'This.r equals 50.', 'start': 1285.21, 'duration': 1.501}, {'end': 1296.594, 'text': "And then I'm going to say this.r times 2, because the ellipse function wants a diameter to draw a circle.", 'start': 1286.711, 'duration': 9.883}, {'end': 1298.454, 'text': 'So the radius times 2 is the diameter.', 'start': 1296.694, 'duration': 1.76}, {'end': 1299.815, 'text': "So let's see how this goes.", 'start': 1298.714, 'duration': 1.101}, {'end': 1302.677, 'text': "Where's my asteroid? There it is.", 'start': 1300.816, 'duration': 1.861}, {'end': 1304.939, 'text': "Here's one asteroid and it's a circle.", 'start': 1303.138, 'duration': 1.801}, {'end': 1308.922, 'text': 'I can hit refresh and it should, I must have something wrong with my random.', 'start': 1305.099, 'duration': 3.823}, {'end': 1311.524, 'text': 'Cause right, look it seems to be off the screen.', 'start': 1309.262, 'duration': 2.262}], 'summary': 'Using a radius of 50, the code draws a circle for an asteroid.', 'duration': 28.474, 'max_score': 1283.05, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1283050.jpg'}, {'end': 1364.568, 'src': 'embed', 'start': 1332.873, 'weight': 4, 'content': [{'end': 1335.854, 'text': "So that asteroid is actually being drawn relative to the ship's location.", 'start': 1332.873, 'duration': 2.981}, {'end': 1338.895, 'text': 'And I can show you what I mean like this.', 'start': 1336.094, 'duration': 2.801}, {'end': 1340.696, 'text': "I've got to get it to appear.", 'start': 1339.895, 'duration': 0.801}, {'end': 1341.617, 'text': 'Look, as I move.', 'start': 1340.716, 'duration': 0.901}, {'end': 1344.339, 'text': "Now that's kind of interesting, but it's not what we want.", 'start': 1341.637, 'duration': 2.702}, {'end': 1350.805, 'text': 'So one thing I need to add is are these functions that are in p5 that are the functions push and pop.', 'start': 1344.859, 'duration': 5.946}, {'end': 1355.249, 'text': 'So push is going to save the current translation and rotation state.', 'start': 1351.105, 'duration': 4.144}, {'end': 1358.482, 'text': 'And pop is going to restore it.', 'start': 1356.98, 'duration': 1.502}, {'end': 1364.568, 'text': 'So if I put push and pop around it, it makes all this translate rotate for the triangle not affect the other thing.', 'start': 1358.762, 'duration': 5.806}], 'summary': "Using push and pop functions in p5 to manage translation and rotation states for the asteroid relative to the ship's position.", 'duration': 31.695, 'max_score': 1332.873, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1332873.jpg'}], 'start': 1218.278, 'title': 'Asteroid rendering and drawing in javascript', 'summary': 'Covers the process of rendering asteroids in javascript, including constructing a template and defining necessary functions, and also demonstrates drawing and positioning asteroids in a game using p5.js, addressing relative positioning and implementing translation and rotation states.', 'chapters': [{'end': 1283.049, 'start': 1218.278, 'title': 'Asteroid rendering in javascript', 'summary': 'Outlines the process of imagining and creating the code for rendering asteroids in javascript through constructing a template and defining the necessary functions, including a constructor function and a render function.', 'duration': 64.771, 'highlights': ['The process involves imagining the necessary code and functions for rendering asteroids in JavaScript, including a constructor function and a render function.', 'The need for an array and a loop to add and call render for each asteroid is identified as part of the imagining process.', 'The constructor function for the asteroid in JavaScript needs to be defined, and the asteroid should have a position created using a random spot function.', 'The render function for the asteroid in JavaScript should draw the asteroid using the translate and circle functions.']}, {'end': 1439.615, 'start': 1283.05, 'title': 'Asteroid drawing and positioning', 'summary': 'Demonstrates how to draw and position asteroids in a game using p5.js, including utilizing the ellipse function to draw circles, addressing the issue of relative positioning, and implementing the push and pop functions to manage translation and rotation states.', 'duration': 156.565, 'highlights': ['The ellipse function is used to draw circles, with the radius being defined as the diameter, as demonstrated by setting this.r times 2 for drawing an asteroid.', 'The issue of relative positioning is addressed by utilizing the push and pop functions to save and restore the translation and rotation states, ensuring independence of positioning for multiple asteroids.', 'The concept of procedurally generating random asteroids with a jaggedy look is briefly explained, including the potential use of setting all circle points as vertices and connecting them as one polygon for a less high-resolution circle.']}], 'duration': 221.337, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1218278.jpg', 'highlights': ['The process involves imagining the necessary code and functions for rendering asteroids in JavaScript, including a constructor function and a render function.', 'The need for an array and a loop to add and call render for each asteroid is identified as part of the imagining process.', 'The constructor function for the asteroid in JavaScript needs to be defined, and the asteroid should have a position created using a random spot function.', 'The render function for the asteroid in JavaScript should draw the asteroid using the translate and circle functions.', 'The issue of relative positioning is addressed by utilizing the push and pop functions to save and restore the translation and rotation states, ensuring independence of positioning for multiple asteroids.', 'The ellipse function is used to draw circles, with the radius being defined as the diameter, as demonstrated by setting this.r times 2 for drawing an asteroid.']}, {'end': 1903.332, 'segs': [{'end': 1534.618, 'src': 'embed', 'start': 1478.866, 'weight': 0, 'content': [{'end': 1480.907, 'text': "I'm going to use i.", 'start': 1478.866, 'duration': 2.041}, {'end': 1481.767, 'text': 'i equals 0.', 'start': 1480.907, 'duration': 0.86}, {'end': 1485.368, 'text': "i is less than, I don't know, let's just use 10 points.", 'start': 1481.767, 'duration': 3.601}, {'end': 1486.629, 'text': 'i plus plus.', 'start': 1485.929, 'duration': 0.7}, {'end': 1491.231, 'text': 'I can use the p5 map function to get an angle.', 'start': 1487.97, 'duration': 3.261}, {'end': 1502.976, 'text': "So I want to take i, which goes from zero to 10, and I want to get an angle that's between zero and two pi,", 'start': 1491.611, 'duration': 11.365}, {'end': 1505.137, 'text': 'two pi being the equivalent of 360 degrees.', 'start': 1502.976, 'duration': 2.161}, {'end': 1511.179, 'text': 'Then I want to say var x equals, This dot r times cosine of that angle.', 'start': 1505.717, 'duration': 5.462}, {'end': 1514.201, 'text': 'This is the polar to Cartesian coordinate.', 'start': 1511.459, 'duration': 2.742}, {'end': 1516.782, 'text': 'The polar coordinate is r comma angle.', 'start': 1514.561, 'duration': 2.221}, {'end': 1521.504, 'text': 'The Cartesian coordinate is x comma y, named for Rene Descartes, the mathematician.', 'start': 1517.062, 'duration': 4.442}, {'end': 1524.045, 'text': 'Var y equals sine of the angle.', 'start': 1521.984, 'duration': 2.061}, {'end': 1529.508, 'text': 'And then what I can do is I can set a vertex at that x and y position.', 'start': 1524.405, 'duration': 5.103}, {'end': 1534.618, 'text': "OK? In addition to that, what I'm going to do is say beginShape.", 'start': 1529.528, 'duration': 5.09}], 'summary': 'Using i from 0 to 10, map angle to x, y coordinates for shapes.', 'duration': 55.752, 'max_score': 1478.866, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1478866.jpg'}, {'end': 1671.338, 'src': 'embed', 'start': 1644.078, 'weight': 2, 'content': [{'end': 1648.3, 'text': "So let's just start it with five.", 'start': 1644.078, 'duration': 4.222}, {'end': 1651.764, 'text': "Okay, so we can see here's now a bunch of asteroids.", 'start': 1649.522, 'duration': 2.242}, {'end': 1654.786, 'text': "Now here's the thing, these don't look like the asteroids in asteroids.", 'start': 1651.884, 'duration': 2.902}, {'end': 1657.768, 'text': 'So how am I going to make them jaggedy and more interesting looking?', 'start': 1655.146, 'duration': 2.622}, {'end': 1665.994, 'text': "What I believe I can do is I can actually, let's see how am I going to do this in the asteroids?", 'start': 1658.088, 'duration': 7.906}, {'end': 1671.338, 'text': 'What I can do is offset r each time by some random value.', 'start': 1666.194, 'duration': 5.144}], 'summary': 'Discussing ways to make asteroids look jaggedy and more interesting using offset values.', 'duration': 27.26, 'max_score': 1644.078, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1644078.jpg'}, {'end': 1843.456, 'src': 'embed', 'start': 1809.201, 'weight': 3, 'content': [{'end': 1819.088, 'text': 'This.velocity equals and p5 has a function to create a random vector, so a vector of length, one pointing in a random direction.', 'start': 1809.201, 'duration': 9.887}, {'end': 1822.09, 'text': 'so I can just say random2D to give me a random vector.', 'start': 1819.088, 'duration': 3.002}, {'end': 1832.692, 'text': 'If I go to sketch.js, I can say asteroids, index i.update.', 'start': 1822.41, 'duration': 10.282}, {'end': 1836.773, 'text': 'And here we go.', 'start': 1835.813, 'duration': 0.96}, {'end': 1839.334, 'text': 'There we go, now the asteroids are moving around.', 'start': 1836.793, 'duration': 2.541}, {'end': 1843.456, 'text': 'Oh, the asteroids also need to, when they leave, to come back.', 'start': 1839.714, 'duration': 3.742}], 'summary': "Using p5's random vector function to move asteroids in sketch.js.", 'duration': 34.255, 'max_score': 1809.201, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1809201.jpg'}, {'end': 1903.332, 'src': 'embed', 'start': 1894.749, 'weight': 4, 'content': [{'end': 1903.332, 'text': 'But I should add a feature where I can now fire little, lasers at the asteroids and break them apart.', 'start': 1894.749, 'duration': 8.583}], 'summary': 'Adding a feature to fire lasers at asteroids to break them apart.', 'duration': 8.583, 'max_score': 1894.749, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1894749.jpg'}], 'start': 1439.915, 'title': 'Transforming polar to cartesian coordinates and generating procedural asteroids', 'summary': 'Explains the process of transforming polar coordinates to cartesian coordinates using trigonometry in p5, creating shapes with 10 vertices and adjusting the resolution. it also discusses creating procedurally generated asteroids with varying vertices and sizes, adding movement and edge detection, and considering collision detection and laser firing feature.', 'chapters': [{'end': 1567.887, 'start': 1439.915, 'title': 'Polar to cartesian coordinate transformation', 'summary': 'Explains the process of transforming polar coordinates to cartesian coordinates using trigonometry and implementing it in p5, creating a shape with 10 vertices and adjusting the resolution for different shapes.', 'duration': 127.972, 'highlights': ['The process of transforming polar coordinates to Cartesian coordinates is explained using trigonometry. The chapter explains the process of transforming polar coordinates to Cartesian coordinates using trigonometry.', 'Implementing the transformation in P5 to create a shape with 10 vertices. The chapter demonstrates implementing the transformation in P5 to create a shape with 10 vertices.', 'Adjusting the resolution for different shapes by having a different number of vertices. The chapter discusses adjusting the resolution for different shapes by having a different number of vertices.']}, {'end': 1903.332, 'start': 1568.287, 'title': 'Procedurally generated asteroids', 'summary': 'Discusses the process of creating procedurally generated asteroids with varying vertices and sizes, adding movement and edge detection to the asteroids, and considering the implementation of collision detection and a feature to fire lasers at the asteroids.', 'duration': 335.045, 'highlights': ['The chapter explains the process of creating procedurally generated asteroids with varying vertices and sizes, using random number generation and offset arrays to achieve a jaggedy and more interesting appearance. The process involves generating asteroids with random number of vertices and sizes between 15 and 50, utilizing offset arrays to add jaggedy appearance, and adjusting the offset values to achieve the desired visual effect.', "The chapter covers the addition of movement to the asteroids by assigning them a random velocity using the p5 library's function for creating a random vector, allowing the asteroids to move around the screen. Asteroids are given a random velocity using the p5 library's function, enabling them to move around the screen, and the 'update' function is utilized to manage their movement.", 'The author considers the potential implementation of collision detection and a feature to fire lasers at the asteroids, acknowledging the absence of collision detection and expressing the intention to add a feature for breaking the asteroids apart with lasers. The author mentions the absence of collision detection, expressing the decision to not add it at the moment, and hints at a potential feature to fire lasers at the asteroids to break them apart.']}], 'duration': 463.417, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/hacZU523FyM/pics/hacZU523FyM1439915.jpg', 'highlights': ['The process of transforming polar coordinates to Cartesian coordinates is explained using trigonometry.', 'Implementing the transformation in P5 to create a shape with 10 vertices.', 'The chapter explains the process of creating procedurally generated asteroids with varying vertices and sizes, using random number generation and offset arrays to achieve a jaggedy and more interesting appearance.', "The chapter covers the addition of movement to the asteroids by assigning them a random velocity using the p5 library's function for creating a random vector.", 'The author considers the potential implementation of collision detection and a feature to fire lasers at the asteroids.']}], 'highlights': ['The speaker demonstrates a coding challenge using p5.js library in JavaScript.', "The speaker plans to pass the game to Suraj for training a bot and invites viewers to check Suraj's video for the bot's performance.", "The game doesn't have score features yet, but the speaker plans to add them in later.", 'Using p5.js framework to create Asteroids game with customized game mechanics.', 'The chapter demonstrates creating a ship object using p5.js, including defining its position and enabling smooth rotation.', "The chapter emphasizes handling key press and release events differently to set and unset the object's rotation.", 'The chapter discusses implementing object rotation by creating a global variable and a function to set the rotation, handling key press and release events differently, and implementing object movement.', 'The process involves handling edge collisions, enabling the ship to drive off the edge and return, and implementing functionalities for driving off the top and the side, with the ability to turn around and slow down.', 'The process involves imagining the necessary code and functions for rendering asteroids in JavaScript, including a constructor function and a render function.', 'The process of transforming polar coordinates to Cartesian coordinates is explained using trigonometry.', 'The chapter explains the process of creating procedurally generated asteroids with varying vertices and sizes, using random number generation and offset arrays to achieve a jaggedy and more interesting appearance.']}