base on Implementation of tearable cloth in Flutter. # Flutter Cloth Simulation This documentation provides an overview of the classes and their roles, each class plays a crucial role in achieving the interactive and dynamic cloth behavior. Use this documentation as a reference to understand the structure and purpose of each component in the project.  ## Table of Contents 1. [ClothPainter Class](#clothpainter-class) 2. [Cloth Class](#cloth-class) 3. [Point Class](#point-class) 4. [Constraint Class](#constraint-class) 5. [Pointer Class](#pointer-class) 6. [Settings](#settings) 7. [Inspiration](#inspiration) 8. [License](#license) ## ClothPainter Class The `ClothPainter` class is responsible for painting the cloth on the canvas. ### Attributes - `cloth`: An instance of the `Cloth` class representing the cloth. - `showHeatmap`: A boolean value indicating whether to display a heatmap effect. - `pointMode`: A `PointMode` enum value representing the point drawing mode. ### Methods - `paint(Canvas canvas, Size size)`: Paints the cloth on the canvas. - `shouldRepaint(CustomPainter oldDelegate)`: Determines if a repaint is required. ## Cloth Class The `Cloth` class represents the cloth and is responsible for its creation and simulation. ### Attributes - `_points`: A list of `Point` objects representing the cloth's points. ### Methods - `update()`: Updates the cloth's simulation. - `draw(Canvas canvas, Paint paint, bool showHeatmap, PointMode pointMode)`: Draws the cloth on the canvas. - Other helper methods to handle cloth simulation. ## Point Class The `Point` class represents a point in the cloth and handles its behavior. ### Attributes - `position`: The position of the point. - `pointer`: An instance of the `Pointer` class representing user interaction. - `velocity`: The velocity of the point. - `pinPosition`: The position at which the point is pinned. ### Methods - `update(double delta)`: Updates the point's position. - `draw(Canvas canvas, Paint paint, PointMode pointMode)`: Draws the point on the canvas. - `resolveConstraints()`: Resolves constraints related to the point. - Other methods for point behavior. ## Constraint Class The `Constraint` class defines a constraint between two points in the cloth. ### Attributes - `p1`: The first `Point` involved in the constraint. - `p2`: The second `Point` involved in the constraint. - `length`: The desired length of the constraint. ### Methods - `resolve()`: Resolves the constraint to maintain the desired length. - `draw(Canvas canvas, Paint paint, PointMode pointMode)`: Draws the constraint on the canvas. ## Pointer Class The `Pointer` class represents user interaction with the cloth. ### Attributes - `pressed`: A boolean indicating if the pointer is pressed. - `isActionPressed`: A boolean indicating if the pointer is in an action (e.g., tearing the cloth). - `position`: The current position of the pointer. - `previousPosition`: The previous position of the pointer. ## Settings The `Settings` class defines constants and settings for the cloth simulation. ```dart const double canvasWidth = 800; const double canvasHeight = 600; const double clothWidth = 80; const double clothHeight = 60; const double gravity = 1200; const int physicsAccuracy = 3; const double friction = 0.98; const double spacing = 5; const double tearDistance = 50; const Offset start = Offset(canvasWidth * 0.5 - (clothWidth * spacing) * 0.5, 20); const double pointerInfluence = 40; const double pointerCut = 7; ``` ## Inspiration This project is inspired by [Tearable Cloth](https://codepen.io/dissimulate/pen/eZxEBO) by [Dissimulate](https://codepen.io/dissimulate). ## License This project is licensed under the MIT License - see the [LICENSE](/LICENSE) file for details. ", Assign "at most 3 tags" to the expected json: {"id":"3450","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"