title
3.1: Flow (setup and draw) - Processing Tutorial

description
This video covers the "flow" of a Processing sketch implemented via the setup() and draw() functions. Support this channel on Patreon: https://patreon.com/codingtrain Contact: https://twitter.com/shiffman Send me your questions and coding challenges!: https://github.com/CodingTrain/Rainbow-Topics Link to code on Github: https://github.com/CodingTrain/Rainbow-Code Processing: http://processing.org Processing Foundation: https://processingfoundation.org/ Learning Processing Book: http://learningprocessing.com/ For More Processing Tutorials: https://www.youtube.com/user/shiffman/playlists?view=50&sort=dd&shelf_id=2 📄 Code of Conduct: https://github.com/CodingTrain/Code-of-Conduct

detail
{'title': '3.1: Flow (setup and draw) - Processing Tutorial', 'heatmap': [{'end': 86.638, 'start': 60.316, 'weight': 1}, {'end': 557.827, 'start': 537.728, 'weight': 0.781}, {'end': 703.551, 'start': 678.432, 'weight': 0.757}], 'summary': 'Tutorial covers the concept of program flow, emphasizing sequential code execution, event-driven, and continuous looping methods. it also introduces code blocks, program flow, and program lifecycle in the context of pong game, discussing setting up initial conditions for drawing and the significance of void setup and void draw functions in processing.', 'chapters': [{'end': 174.637, 'segs': [{'end': 57.615, 'src': 'embed', 'start': 29.343, 'weight': 1, 'content': [{'end': 33.107, 'text': 'about programming the computer, that we really need to tackle right now.', 'start': 29.343, 'duration': 3.764}, {'end': 36.309, 'text': "So this video and the next video, we're going to tackle something.", 'start': 33.307, 'duration': 3.002}, {'end': 37.41, 'text': "We're going to think about.", 'start': 36.329, 'duration': 1.081}, {'end': 40.712, 'text': "We're going to call this the flow of a program.", 'start': 38.331, 'duration': 2.381}, {'end': 43.072, 'text': 'The flow of a program.', 'start': 40.772, 'duration': 2.3}, {'end': 48.153, 'text': "So let's consider this idea of flow in the context of what we have so far.", 'start': 43.372, 'duration': 4.781}, {'end': 51.514, 'text': 'So over here, we have a very simple processing sketch.', 'start': 48.553, 'duration': 2.961}, {'end': 53.314, 'text': "It's what we've kind of started with.", 'start': 51.994, 'duration': 1.32}, {'end': 55.135, 'text': 'We have size of the window.', 'start': 53.635, 'duration': 1.5}, {'end': 57.615, 'text': 'We draw a background, and we draw a rectangle on the screen.', 'start': 55.195, 'duration': 2.42}], 'summary': 'Tackling the flow of a program in programming.', 'duration': 28.272, 'max_score': 29.343, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs29343.jpg'}, {'end': 86.638, 'src': 'heatmap', 'start': 60.316, 'weight': 1, 'content': [{'end': 66.442, 'text': "What's the flow of this program? Well, we can count 1, 2, 3, 4, 5, 6 lines of code.", 'start': 60.316, 'duration': 6.126}, {'end': 69.125, 'text': 'It executes each one of those in order.', 'start': 67.083, 'duration': 2.042}, {'end': 70.887, 'text': "And when it gets to the end, it's done.", 'start': 69.185, 'duration': 1.702}, {'end': 74.25, 'text': 'And voila, rectangle on the screen.', 'start': 70.907, 'duration': 3.343}, {'end': 78.554, 'text': "But truth be told, I don't know why I walked over here, but I like the white background.", 'start': 75.351, 'duration': 3.203}, {'end': 83.339, 'text': 'Truth be told, that is not how most programs operate.', 'start': 78.834, 'duration': 4.505}, {'end': 86.638, 'text': 'Programs operate in a lot of different ways.', 'start': 85.217, 'duration': 1.421}], 'summary': 'Program flow involves executing 6 lines of code in order, resulting in a rectangle on the screen.', 'duration': 26.322, 'max_score': 60.316, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs60316.jpg'}, {'end': 137.643, 'src': 'embed', 'start': 95.603, 'weight': 0, 'content': [{'end': 97.684, 'text': 'some code is executed and an image is processed.', 'start': 95.603, 'duration': 2.081}, {'end': 101.747, 'text': 'You can also think of a program as kind of running forever in this loop.', 'start': 98.084, 'duration': 3.663}, {'end': 108.671, 'text': "If you're playing a game or watching some procedural animation, it's happening over time.", 'start': 102.067, 'duration': 6.604}, {'end': 111.132, 'text': 'Draw the stuff to the screen, move the stuff.', 'start': 109.091, 'duration': 2.041}, {'end': 112.912, 'text': 'Draw the stuff to the screen, move the stuff.', 'start': 111.212, 'duration': 1.7}, {'end': 114.013, 'text': "That's what Pong is doing.", 'start': 112.932, 'duration': 1.081}, {'end': 116.153, 'text': 'Move the mouse, draw the paddle over here.', 'start': 114.333, 'duration': 1.82}, {'end': 117.834, 'text': 'Move the mouse, draw the paddle over here.', 'start': 116.194, 'duration': 1.64}, {'end': 120.635, 'text': 'Programs run over time.', 'start': 118.854, 'duration': 1.781}, {'end': 122.516, 'text': 'They keep track of data over time.', 'start': 120.675, 'duration': 1.841}, {'end': 127.597, 'text': 'They take different paths based on what the user does or what inputs are coming to the program.', 'start': 122.836, 'duration': 4.761}, {'end': 137.643, 'text': 'We need foundation for writing programs, writing, processing, sketches that happen over time, whether that means they run in a loop,', 'start': 127.978, 'duration': 9.665}], 'summary': 'Programs process data over time, running in a loop, responding to user inputs.', 'duration': 42.04, 'max_score': 95.603, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs95603.jpg'}], 'start': 3.68, 'title': 'Program flow', 'summary': 'Introduces the concept of program flow, highlighting sequential code execution and different program operation methods, such as event-driven and continuous looping, to process data and user inputs over time.', 'chapters': [{'end': 174.637, 'start': 3.68, 'title': 'Understanding the flow of a program', 'summary': 'Introduces the concept of program flow, highlighting the sequential execution of code and the different ways programs operate, such as event-driven and continuous looping, to process data and user inputs over time.', 'duration': 170.957, 'highlights': ['Programs can operate in different ways such as event-driven or continuous looping over time to process data and user inputs. The chapter explains that programs can operate in various ways, including event-driven or continuous looping over time to process data and user inputs.', 'Introduction of the concept of program flow, emphasizing the sequential execution of code and the need for understanding the flow of a program when writing software. The chapter introduces the concept of program flow, emphasizing the sequential execution of code and the importance of understanding the flow of a program when writing software.', 'Explanation of an animation loop as a scenario to illustrate program flow and the continuous processing of data over time, particularly in the context of creating games. The chapter explains the concept of an animation loop as a scenario to illustrate program flow and the continuous processing of data over time, especially in the context of creating games.']}], 'duration': 170.957, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs3680.jpg', 'highlights': ['Programs can operate in different ways such as event-driven or continuous looping over time to process data and user inputs.', 'Introduction of the concept of program flow, emphasizing the sequential execution of code and the need for understanding the flow of a program when writing software.', 'Explanation of an animation loop as a scenario to illustrate program flow and the continuous processing of data over time, particularly in the context of creating games.']}, {'end': 399.426, 'segs': [{'end': 254.634, 'src': 'embed', 'start': 199.318, 'weight': 0, 'content': [{'end': 200.679, 'text': 'Block of code.', 'start': 199.318, 'duration': 1.361}, {'end': 204.342, 'text': "We're going to use blocks of code all the time.", 'start': 201.04, 'duration': 3.302}, {'end': 208.425, 'text': 'When we want to segment this part of our code.', 'start': 204.682, 'duration': 3.743}, {'end': 209.806, 'text': 'does this this part of our code?', 'start': 208.425, 'duration': 1.381}, {'end': 210.486, 'text': 'does this?', 'start': 209.806, 'duration': 0.68}, {'end': 212.088, 'text': 'this is the definition of this.', 'start': 210.486, 'duration': 1.602}, {'end': 213.669, 'text': 'this is the definition of that.', 'start': 212.088, 'duration': 1.581}, {'end': 215.15, 'text': 'we need to create a block of code.', 'start': 213.669, 'duration': 1.481}, {'end': 231.389, 'text': 'A block of code is always noted with an open curly bracket to begin and a closed curly bracket to end.', 'start': 215.41, 'duration': 15.979}, {'end': 236.394, 'text': 'And then the code that is contained within that block goes in between those curly brackets.', 'start': 231.809, 'duration': 4.585}, {'end': 240.258, 'text': 'So we need two blocks of code.', 'start': 237.034, 'duration': 3.224}, {'end': 241.159, 'text': "Let's think about this.", 'start': 240.278, 'duration': 0.881}, {'end': 244.702, 'text': 'The flow of our program is actually going to be very, very simple.', 'start': 241.859, 'duration': 2.843}, {'end': 246.484, 'text': "We're going to have two elements.", 'start': 245.063, 'duration': 1.421}, {'end': 248.186, 'text': "One we're going to call setup.", 'start': 247.065, 'duration': 1.121}, {'end': 252.372, 'text': "And one we're going to call draw.", 'start': 250.29, 'duration': 2.082}, {'end': 254.634, 'text': "I don't know what I'm drawing over here.", 'start': 253.153, 'duration': 1.481}], 'summary': 'Using blocks of code to segment and define parts of the program. creating two blocks: setup and draw.', 'duration': 55.316, 'max_score': 199.318, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs199318.jpg'}, {'end': 324.697, 'src': 'embed', 'start': 297.483, 'weight': 2, 'content': [{'end': 301.464, 'text': 'So when it gets to the end, it comes right back up and executes that code again.', 'start': 297.483, 'duration': 3.981}, {'end': 304.625, 'text': 'Code that happens once, code that happens over and over again.', 'start': 301.844, 'duration': 2.781}, {'end': 309.387, 'text': 'Why does this flow make sense for us? This flow makes sense for us.', 'start': 305.065, 'duration': 4.322}, {'end': 312.588, 'text': "Let's just take, for example, the game Pong again.", 'start': 309.907, 'duration': 2.681}, {'end': 317.688, 'text': 'Because there are often a bunch of things you want to do to initialize a program.', 'start': 313.502, 'duration': 4.186}, {'end': 319.029, 'text': 'Pong begins.', 'start': 318.128, 'duration': 0.901}, {'end': 320.932, 'text': 'Set the score to zero.', 'start': 319.59, 'duration': 1.342}, {'end': 322.494, 'text': 'Set the level to zero.', 'start': 321.312, 'duration': 1.182}, {'end': 324.697, 'text': 'Place the paddles in their starting location.', 'start': 322.834, 'duration': 1.863}], 'summary': 'Repeated execution of code makes sense for initializing programs, like setting score and levels in pong.', 'duration': 27.214, 'max_score': 297.483, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs297483.jpg'}, {'end': 378.01, 'src': 'embed', 'start': 342.727, 'weight': 3, 'content': [{'end': 345.628, 'text': 'If the puck goes past the paddle, increase the score, that type of thing.', 'start': 342.727, 'duration': 2.901}, {'end': 348.809, 'text': 'So all that stuff is always happening while that program is running.', 'start': 345.888, 'duration': 2.921}, {'end': 351.845, 'text': "When does the program stop? I don't know.", 'start': 349.089, 'duration': 2.756}, {'end': 354.806, 'text': 'In this case, absolutely never.', 'start': 352.085, 'duration': 2.721}, {'end': 358.486, 'text': "When the computer breaks, when the user turns it off, it's quit.", 'start': 354.846, 'duration': 3.64}, {'end': 364.387, 'text': 'Obviously, we could create all sorts of different types of scenarios where a program stops, restarts, all sorts of things.', 'start': 358.746, 'duration': 5.641}, {'end': 370.829, 'text': 'But this is our basic foundation, some stuff that happens at the beginning and some stuff that happens forever and ever.', 'start': 364.647, 'duration': 6.182}, {'end': 376.51, 'text': "So let's go back and look at this code for a second and say, OK, here are some things in this program.", 'start': 371.009, 'duration': 5.501}, {'end': 378.01, 'text': "There's the size function.", 'start': 376.85, 'duration': 1.16}], 'summary': 'Program runs continuously, with events increasing score, until stopped by user or computer failure.', 'duration': 35.283, 'max_score': 342.727, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs342727.jpg'}], 'start': 175.712, 'title': 'Code blocks, program flow, and program lifecycle', 'summary': 'Introduces code blocks and program flow in the context of pong game, emphasizing the continuous execution and basic program lifecycle functions such as size, background, and drawing.', 'chapters': [{'end': 297.243, 'start': 175.712, 'title': 'Introduction to code blocks and program flow', 'summary': 'Introduces the concept of code blocks and explains the program flow using two main blocks, setup and draw, for initializing and continuous execution, respectively.', 'duration': 121.531, 'highlights': ['The chapter introduces the concept of code blocks, which are noted with open and closed curly brackets and contain code within them, essential for segmenting different parts of the code.', "It explains the program flow using two main blocks, 'setup' and 'draw', where 'setup' initializes conditions once, while 'draw' executes continuously in a loop."]}, {'end': 358.486, 'start': 297.483, 'title': 'Understanding program flow in pong game', 'summary': 'Explains the concept of program flow using the example of the game pong, illustrating how certain code executes once while other code loops over and over, demonstrating the continuous nature of program execution.', 'duration': 61.003, 'highlights': ["The program execution involves code that runs once for initialization (e.g., setting score, level, paddle and puck positions) and code that loops repeatedly during the program's runtime (e.g., moving and drawing the paddle, handling puck collisions).", "The continuous nature of the program's execution is emphasized, depicting how the program keeps running until the computer is turned off or experiences a malfunction.", 'The example of the game Pong is used to illustrate the concept of program flow, providing a relatable context for understanding the continuous and repetitive nature of program execution.']}, {'end': 399.426, 'start': 358.746, 'title': 'Programming basics: program lifecycle', 'summary': 'Discusses the basic foundation of a program, highlighting the functions of size, background, and drawing, and emphasizes the concepts of initialization and continuous looping.', 'duration': 40.68, 'highlights': ['The chapter emphasizes the concepts of initialization and continuous looping, discussing the basic foundation of a program and highlighting the functions of size, background, and drawing.', 'The program contains the size function, background function, and other functions for drawing, illustrating the concepts of initialization and continuous looping.', 'Various scenarios involving program stops, restarts, and continuous execution are mentioned, demonstrating the versatility of program control.']}], 'duration': 223.714, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs175712.jpg', 'highlights': ['The chapter introduces the concept of code blocks, essential for segmenting different parts of the code.', "The program flow is explained using two main blocks, 'setup' and 'draw', emphasizing their respective roles.", 'The program execution involves initialization code and code that loops repeatedly during runtime.', "The continuous nature of the program's execution is emphasized, depicting how the program keeps running until the computer is turned off or experiences a malfunction.", 'The example of the game Pong is used to illustrate the concept of program flow, providing a relatable context for understanding program execution.', 'The chapter emphasizes the concepts of initialization and continuous looping, discussing the basic foundation of a program.', 'Various scenarios involving program stops, restarts, and continuous execution are mentioned, demonstrating the versatility of program control.']}, {'end': 942.967, 'segs': [{'end': 439.974, 'src': 'embed', 'start': 399.506, 'weight': 0, 'content': [{'end': 401.907, 'text': 'But anyway, maybe you did.', 'start': 399.506, 'duration': 2.401}, {'end': 402.747, 'text': 'Thank you for like.', 'start': 402.007, 'duration': 0.74}, {'end': 410.587, 'text': "Humoring me, but I think at least there's one thing that's incredibly obvious, which is that size should go at the beginning.", 'start': 403.806, 'duration': 6.781}, {'end': 413.128, 'text': 'Size is an initialization condition.', 'start': 411.087, 'duration': 2.041}, {'end': 415.388, 'text': "We're setting up the size of our window.", 'start': 413.408, 'duration': 1.98}, {'end': 421.21, 'text': 'Now, of course, you could probably come up with some scenario where you want the window to dynamically resize while the program is running,', 'start': 415.428, 'duration': 5.782}, {'end': 422.49, 'text': "but that's not what we're doing right now.", 'start': 421.21, 'duration': 1.28}, {'end': 430.271, 'text': "What we're doing right now is we're saying size is something that we have to add, that we have to do once and only once.", 'start': 422.83, 'duration': 7.441}, {'end': 437.592, 'text': 'Now, in an animation program, presumably, We want to draw our stuff over and over again.', 'start': 430.751, 'duration': 6.841}, {'end': 439.974, 'text': 'We always want to draw it in the window.', 'start': 437.612, 'duration': 2.362}], 'summary': 'In an animation program, the size should be initialized at the beginning to set up the window dimensions.', 'duration': 40.468, 'max_score': 399.506, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs399506.jpg'}, {'end': 489.544, 'src': 'embed', 'start': 461.687, 'weight': 2, 'content': [{'end': 464.188, 'text': 'So there was one more thing over here, background.', 'start': 461.687, 'duration': 2.501}, {'end': 465.468, 'text': 'I forgot to start the timer.', 'start': 464.508, 'duration': 0.96}, {'end': 466.489, 'text': "I don't know how long I'm going.", 'start': 465.488, 'duration': 1.001}, {'end': 474.051, 'text': "Background, where does that go? I'm going to say there's no correct answer to this question.", 'start': 466.909, 'duration': 7.142}, {'end': 477.893, 'text': "And for now, I'm actually just going to put background here.", 'start': 474.652, 'duration': 3.241}, {'end': 481.742, 'text': "And we're going to examine this later.", 'start': 480.342, 'duration': 1.4}, {'end': 486.223, 'text': 'What happens if we put background in setup? What happens if we put other things? There really are no right answers to these questions.', 'start': 481.762, 'duration': 4.461}, {'end': 488.184, 'text': "It has to do with what you're creating.", 'start': 486.923, 'duration': 1.261}, {'end': 489.544, 'text': 'This is just the foundation.', 'start': 488.404, 'duration': 1.14}], 'summary': "Discussion on the placement of 'background' with no clear answers or conclusions.", 'duration': 27.857, 'max_score': 461.687, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs461687.jpg'}, {'end': 557.827, 'src': 'heatmap', 'start': 522.866, 'weight': 4, 'content': [{'end': 525.728, 'text': "We've got setup, which has size in a block of code.", 'start': 522.866, 'duration': 2.862}, {'end': 528.89, 'text': "We've got draw, which has background and rectangle in a block of code.", 'start': 525.968, 'duration': 2.922}, {'end': 535.095, 'text': "But what do we actually have to write in processing? So I'm going to erase everything around this.", 'start': 529.19, 'duration': 5.905}, {'end': 542.861, 'text': "and I'm going to look at what the actual processing syntax for establishing setup and draw is.", 'start': 537.728, 'duration': 5.133}, {'end': 552.066, 'text': 'And what it is is we say void setup parentheses open bracket close bracket.', 'start': 543.562, 'duration': 8.504}, {'end': 557.827, 'text': 'void draw parentheses open bracket close bracket.', 'start': 552.066, 'duration': 5.761}], 'summary': 'Processing syntax includes void setup() and void draw() functions for setup and drawing.', 'duration': 29.2, 'max_score': 522.866, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs522866.jpg'}, {'end': 600.055, 'src': 'embed', 'start': 575.233, 'weight': 3, 'content': [{'end': 580.637, 'text': 'Any stray code just somewhere outside of these two blocks would not make any sense.', 'start': 575.233, 'duration': 5.404}, {'end': 583.24, 'text': 'Code only happens in setup and draw.', 'start': 581.018, 'duration': 2.222}, {'end': 589.185, 'text': 'Of course there are going to be more functions and lots more stuff later, but for now we can sort of think of it in this simple way.', 'start': 583.54, 'duration': 5.645}, {'end': 593.469, 'text': 'Code only happens either at the beginning or over and over again in a loop.', 'start': 589.565, 'duration': 3.904}, {'end': 598.313, 'text': 'So looking at this, we can understand now, aha, setup.', 'start': 594.75, 'duration': 3.563}, {'end': 600.055, 'text': 'This is the setup block of code.', 'start': 598.373, 'duration': 1.682}], 'summary': 'Code only happens in setup and draw, either at the beginning or in a loop.', 'duration': 24.822, 'max_score': 575.233, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs575233.jpg'}, {'end': 703.551, 'src': 'heatmap', 'start': 678.432, 'weight': 0.757, 'content': [{'end': 689.342, 'text': "so I'm going to add in, I'm going to say void setup, curly bracket, curly bracket, void draw, curly bracket, curly bracket,", 'start': 678.432, 'duration': 10.91}, {'end': 692.785, 'text': "and I'm going to obnoxiously remove my comments here just for a second.", 'start': 689.342, 'duration': 3.443}, {'end': 693.966, 'text': 'oh, I did something.', 'start': 692.785, 'duration': 1.181}, {'end': 695.928, 'text': 'ah, help everybody stop.', 'start': 693.966, 'duration': 1.962}, {'end': 700.209, 'text': 'So I did something.', 'start': 699.388, 'duration': 0.821}, {'end': 703.551, 'text': "that's a force of unbelievable habit and nature.", 'start': 700.209, 'duration': 3.342}], 'summary': 'Transcript: coding setup and draw functions, removing comments, with unexpected error.', 'duration': 25.119, 'max_score': 678.432, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs678432.jpg'}, {'end': 877.798, 'src': 'embed', 'start': 853.519, 'weight': 5, 'content': [{'end': 859.604, 'text': 'If we have a program that runs over time, how do we introduce the concept of variation into this loop?', 'start': 853.519, 'duration': 6.085}, {'end': 870.492, 'text': 'So I suppose what I would suggest to you before you watch the next video is find something you made and sort of get setup and draw into your sketch.', 'start': 860.845, 'duration': 9.647}, {'end': 873.334, 'text': 'Try to type out the syntax, see if you run into any errors.', 'start': 870.532, 'duration': 2.802}, {'end': 876.757, 'text': 'Just get a sketch with setup and draw.', 'start': 873.615, 'duration': 3.142}, {'end': 877.798, 'text': 'And something I will say.', 'start': 876.817, 'duration': 0.981}], 'summary': 'Introduce variation into a program loop by practicing sketch setup and drawing.', 'duration': 24.279, 'max_score': 853.519, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs853519.jpg'}], 'start': 399.506, 'title': 'Setting up initial conditions for drawing', 'summary': 'Discusses setting up the size as an initialization condition for the window, drawing content repeatedly, and considering background placement. it also explains the syntax and significance of void setup and void draw functions in processing.', 'chapters': [{'end': 481.742, 'start': 399.506, 'title': 'Setting up initial conditions for drawing', 'summary': 'Discusses the importance of setting up the size as an initialization condition for the window, followed by the necessity of drawing the content repeatedly in an animation program, and the consideration of the background placement, emphasizing the need for initial setup and continuous drawing.', 'duration': 82.236, 'highlights': ['The size of the window is emphasized as an initialization condition, to be set up once and only once.', 'Drawing the content repeatedly in an animation program is highlighted as a key aspect, emphasizing the need for continuous drawing.', 'The placement of background is discussed with the recognition that there is no definitive answer, indicating the need for further examination.']}, {'end': 793.699, 'start': 481.762, 'title': 'Understanding processing setup and draw', 'summary': 'Explains the concept of setup and draw blocks in processing, highlighting the syntax and significance of void setup and void draw functions containing the code, emphasizing the need for code only within these blocks.', 'duration': 311.937, 'highlights': ['The chapter explains the concept of setup and draw blocks in processing. It describes the fundamental concept of setup and draw blocks, focusing on their role in processing.', 'Emphasizing the need for code only within these blocks. It emphasizes the necessity of placing code exclusively within the setup and draw blocks, illustrating the fundamental rule of processing.', 'Highlighting the syntax and significance of void setup and void draw functions containing the code. It emphasizes the syntax and significance of the void setup and void draw functions, illustrating their purpose in containing the code for setup and draw blocks.']}, {'end': 942.967, 'start': 794.219, 'title': 'Introducing variation in dynamic programs', 'summary': 'Discusses the concept of introducing variation into a program that runs over time and suggests starting with a simple sketch to animate a basic element, emphasizing the importance of focusing on the flow of a program.', 'duration': 148.748, 'highlights': ['The chapter emphasizes the importance of starting with a simple sketch to introduce variation into the program. Starting with a simple design like one circle or one rectangle makes it easier to focus on animating a simple element and introducing variation into the program.', 'The chapter mentions the need to focus on the flow of a program and suggests building more elaborate designs later. The focus is on understanding the flow of a program before moving on to building more elaborate designs, emphasizing the importance of animating a simple element and introducing variation.', 'The chapter discusses the static nature of the program and the need to introduce variation into the loop. The program is currently static, repeating the same actions over and over again without variation, and the next step is to introduce the concept of variation into the loop.']}], 'duration': 543.461, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/o8dffrZ86gs/pics/o8dffrZ86gs399506.jpg', 'highlights': ['Drawing the content repeatedly in an animation program is highlighted as a key aspect, emphasizing the need for continuous drawing.', 'The size of the window is emphasized as an initialization condition, to be set up once and only once.', 'The placement of background is discussed with the recognition that there is no definitive answer, indicating the need for further examination.', 'Emphasizing the need for code only within these blocks. It emphasizes the necessity of placing code exclusively within the setup and draw blocks, illustrating the fundamental rule of processing.', 'The chapter explains the concept of setup and draw blocks in processing. It describes the fundamental concept of setup and draw blocks, focusing on their role in processing.', 'The chapter discusses the static nature of the program and the need to introduce variation into the loop. The program is currently static, repeating the same actions over and over again without variation, and the next step is to introduce the concept of variation into the loop.']}], 'highlights': ['Introduction of the concept of program flow, emphasizing the sequential execution of code and the need for understanding the flow of a program when writing software.', 'Programs can operate in different ways such as event-driven or continuous looping over time to process data and user inputs.', "The program flow is explained using two main blocks, 'setup' and 'draw', emphasizing their respective roles.", "The continuous nature of the program's execution is emphasized, depicting how the program keeps running until the computer is turned off or experiences a malfunction.", 'Drawing the content repeatedly in an animation program is highlighted as a key aspect, emphasizing the need for continuous drawing.', 'The size of the window is emphasized as an initialization condition, to be set up once and only once.', 'The chapter discusses the static nature of the program and the need to introduce variation into the loop. The program is currently static, repeating the same actions over and over again without variation, and the next step is to introduce the concept of variation into the loop.']}