:)

.eslintignore

@@ -0,0 +1 @@
+/dist

.eslintrc.json

@@ -0,0 +1,38 @@
+{
+    "env": {
+        "es2021": true
+    },
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended"
+    ],
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": {
+        "ecmaVersion": 12,
+        "sourceType": "script"
+    },
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "rules": {
+        "indent": [
+            "error",
+            "tab"
+        ],
+        "linebreak-style": [
+            "error",
+            "windows"
+        ],
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "semi": [
+            "error",
+            "always"
+		],
+		"@typescript-eslint/explicit-module-boundary-types": "off",
+        "brace-style": [2, "allman", { "allowSingleLine": true }]
+	},
+	"ignorePatterns": ["*.config.js", "*.jsx"] // how do you actually do this
+}

README.md

@@ -1,133 +1,46 @@
 # mmkr
+_It's just my handle but shorter_
 
-> This project was create with [create-expression-lib](https://github.com/motiondeveloper/create-expression-lib)
+> This project was created thanks to the help of [create-expression-lib](https://github.com/motiondeveloper/create-expression-lib)!
 
-## Use the library
+## Overview
 
-1. Download the latest version from the releases page.
-2. Import into After Effects and reference in your expressions
+This expressions library is mostly a collection of tools I find personally useful. Some pertain to general tasks and others more specific, i.e. YTPMV/音MAD.
 
-Learn more about writing `.jsx` files for After Effects here: https://motiondeveloper.com/blog/write-expressions-external-files/
+## Usage
+
+1. Download the latest version of `mmkr.jsx` from the releases page.
+2. Import `mmkr.jsx` into your After Effects project.
+3. Reference the library in your expressions like so:
+
+```js
+const MMKR = footage('mmkr.jsx').sourceData.get_functions();
+```
+
+Functions will now be usable from the `MMKR` object:
+```js
+const MMKR = footage('mmkr.jsx').sourceData.get_functions();
+MMKR.inertial_bounce(5, 2, 4); // Apply a bounce to the current property
+```
+
+You can also destructure the returned object:
+```js
+const { inertial_bounce } = footage('mmkr.js').sourceData.get_functions();
+inertial_bounce(5, 2, 4);
+```
 
 ## Development
 
-1. **Clone project locally**
-
-   ```sh
-   git clone repoUrl.git
-   cd mmkr
-   ```
-
-2. **Start Rollup**
-
-   Start Rollup in watch mode to automatically refresh your code as you make changes, by running:
-
-   ```sh
-   npm run watch
-   ```
-
-   _You can run also run a once off build:_ `npm run build`
-
-3. **Edit the `src` files**
-
-   _The `index.ts` contains an example expression setup._
-
-   Any values exported from this file will be included in your library, for example:
-
-   ```js
-   export { someValue };
-   ```
-
-4. **Import the `dist` file into After Effects**
-
-   Use the compiled output file as you would any other `.jsx` library. Any changes to the `src` files will be live updated, and After Effects will update the result of your expression.
-
-5. **Distribute releases**
-
-   To distribute your output file using Github releases (via [Hub](https://github.com/github/hub)), use the command:
-
-   ```sh
-   npm run release
-   ```
-
-   This will use the GitHub CLI to create a new tag and release
-
-   The release version number is the `"version"` in `package.json`, and it will attach the `"main"` file to the release.
-
-   > You can add this version to the output file by placing the string `_npmVersion` in your code, which will be replaced with the version number in `package.json` at build time.
-
-## After Effects API
-
-> This template uses the [`expression-globals-typescript`](https://github.com/motiondeveloper/expression-globals-typescript) package to provide types for the expressions API.
-
-### Classes
-
-To create layers, compositions and properties, you can use the classes exported from the library. For example:
-
-```ts
-import { Comp, Layer } from 'expression-globals-typescript';
-const thisComp = new Comp();
-const thisLayer = new Layer();
-```
-
-To create properties (such as position or scale), you can use the `Property` class.
-
-```ts
-import { Property, Vector } from 'expression-globals-typescript';
-const thisProperty = new Property<Vector>([0, 100]);
-```
-
-> The `Property` constructor takes a value to set as the property value, and a type (`<>`) to set as the type for the property.
-
-### After Effects Types
-
-You can import After Effect's specific types such as `Color` and `Vector` from the package to properly type your expressions.
-
-#### _To see all the Types and Base Objects available, see the [`expression-globals-typescript`](https://github.com/motiondeveloper/expression-globals-typescript) source code._
-
-## Testing
-
-You can test your expression library code using [Jest](https://jestjs.io/), which comes pre-configured in this template repo.
-
-You write tests in the `index.test.ts` file, importing the code you want to test from `index.ts`, for example:
-
-```ts
-import { welcome } from './index';
-
-test('returns correct welcome string', () => {
-  expect(welcome('test')).toEqual('Welcome test!');
-});
-```
-
-And then run the test suite:
-
 ```sh
-npm run test
-```
+git clone repoUrl.git
+cd mmkr
 
-Which will run Jest in watch mode.
+# Automatically refresh .jsx output file
+npm run watch
 
-> You can learn more about testing using Jest from the [Jest docs](https://jestjs.io/docs/en/getting-started).
+# Once off build
+npm run build
 
-## Configuration
-
-There a couple of files you may wish to change to reflect the content of your project:
-
-- `package.json`:
-  - `version`: The current version of the library, which is used for releases and added to `dist` files.
-  - `main`: The build output file which will be attached to releases
-- `rollup.config.js`:
-  - `input`: The source file to be built
-  - `typescript()`: Custom typescript compiler options
-
-## How
-
-- [expression-globals-typescript](https://github.com/motiondeveloper/expression-globals-typescript) mocks the After Effects expressions API in typescript, so you can use global functions and objects such as `linear()` and `time`, while also providing expression specific types such as `Layer`.
-
-- [Rollup](https://rollupjs.org/) is a lightweight module bundler that handles outputting the `.jsx` file via the plugins below.
-
-- The Rollup [Typescript plugin](https://www.npmjs.com/package/@rollup/plugin-typescript) runs the TypeScript compiler
-
-- The Rollup plugin [rollup-plugin-ae-jsx](https://www.npmjs.com/package/rollup-plugin-ae-jsx) transforms the JavaScript output into After Effects JSON (`.jsx`) compliant syntax
-
-- Testing via [Jest](https://jestjs.io/), and [ts-jest](https://github.com/kulshekhar/ts-jest)
+# Distribute release
+npm run release
+```

jest.config.js

@@ -1,4 +1,4 @@
 module.exports = {
-  preset: 'ts-jest',
-  testEnvironment: 'node',
+	preset: 'ts-jest',
+	testEnvironment: 'node',
 };

package.json

@@ -1,7 +1,7 @@
 {
   "name": "mmkr",
-  "version": "1.0.1",
-  "description": "After Effects Expression Library",
+  "version": "1.0.0",
+  "description": "MMaker's After Effects Expression Library",
   "main": "dist/mmkr.jsx",
   "scripts": {
     "test": "jest --watch",
@@ -14,18 +14,17 @@
     "type": "git",
     "url": ""
   },
-  "author": "",
+  "author": "MMaker",
   "license": "MIT",
-  "bugs": {
-    "url": ""
-  },
-  "homepage": "",
+  "homepage": "https://mmaker.moe",
   "devDependencies": {
     "@rollup/plugin-replace": "^2.4.1",
     "@rollup/plugin-typescript": "^8.2.0",
     "@types/jest": "^26.0.22",
+    "@typescript-eslint/eslint-plugin": "^4.22.0",
+    "@typescript-eslint/parser": "^4.22.0",
+    "eslint": "^7.24.0",
     "jest": "^26.6.3",
-    "prettier": "^2.2.1",
     "rollup": "^2.42.4",
     "rollup-plugin-ae-jsx": "^2.0.0",
     "ts-jest": "^26.5.4",

prettier.config.js

@@ -1,4 +0,0 @@
-module.exports = {
-    trailingComma: 'es5',
-    singleQuote: true
-}

src/index.test.ts

@@ -1,11 +0,0 @@
-import { welcome } from './index';
-
-jest.mock('expression-globals-typescript', () => ({
-  Layer: jest.fn(),
-  Comp: jest.fn(),
-  Property: jest.fn(),
-}));
-
-test('returns correct welcome string', () => {
-  expect(welcome('test')).toEqual('Welcome test!');
-});

src/index.ts

@@ -1,31 +1,78 @@
-// Importing object bases (CompBase, LayerBase, PropertyBase)
-// TypeScript types (Layer, Comp, Value, Color etc)
-// and global functions from 'expression-globals-typescript'
 import { Comp, Layer } from 'expression-globals-typescript';
-import { fromOtherFile } from './otherFile';
 
-// Creating a new composition object from CompBase
+const version = '_npmVersion';
 const thisComp = new Comp();
 const thisLayer = new Layer();
+let thisProperty;
 
-// Using the expression types in a function
-function getLayerDuration(layerName: string) {
-  const layer: Layer = thisComp.layer(layerName);
-  return layer.outPoint - layer.inPoint;
+function get_functions(time: number = thisLayer.time)
+{
+	function get_key_index(forward = false, input_property = thisProperty)
+	{
+		let n = 0;
+		if (input_property.numKeys > 0)
+		{
+			n = input_property.nearestKey(time).index;
+			if      (input_property.key(n).time >  time && !forward) n--;
+			else if (input_property.key(n).time <= time &&  forward) n++;
+		}
+		return Math.min(n, input_property.numKeys);
+	}
+
+	function angle_offset(rot: number, pos: number)
+	{
+		rot = thisLayer.degreesToRadians(rot - 90);
+		const x = Math.cos(rot);
+		const y = Math.sin(rot);
+	
+		return [pos*x, pos*y];
+	}
+
+	// https://gist.github.com/animoplex/aafd6a157282351c8dfeea385d969ef2
+	function inertial_bounce(amp: number, freq: number, decay: number, input_property = thisProperty)
+	{
+		const n = get_key_index();
+		let t = 0;
+
+		if (n != 0)
+		{
+			t = time - input_property.key(n).time;
+		}
+
+		if (n > 0 && t < 1)
+		{
+			const v = input_property.velocityAtTime(input_property.key(n).time - thisComp.frameDuration/10);
+			return input_property.value + v * (amp / 100) * Math.sin(freq * t * 2 * Math.PI) / Math.exp(decay*t);
+		}
+		else
+		{
+			return t;
+		}
+	}
+
+	const YTPMV = {
+		flip: function(mult = 100, input_property = thisProperty)
+		{
+			const n = get_key_index(input_property);
+			return (n % 2 != 0 || n == 0) ? 1*mult : -mult;
+		},
+
+		time_reset: function(input_property = thisProperty)
+		{
+			const n = get_key_index(undefined, input_property);
+			return (n > 0) ? time - input_property.key(n).time : 0;
+		}
+	};
+
+	return {
+		get_key_index,
+		angle_offset,
+		inertial_bounce,
+		YTPMV
+	};
 }
 
-// Using expressions global functions
-function remap(value: number) {
-  return thisLayer.linear(value, 0, 10, 0, 1);
-}
-
-function welcome(name: string): string {
-  return `Welcome ${name}!`;
-}
-
-const someValue: number = 2;
-
-const version: string = '_npmVersion';
-
-// Export values to appear in jsx files
-export { getLayerDuration, remap, welcome, someValue, version, fromOtherFile };
+export {
+	version,
+	get_functions
+};

src/otherFile.ts

@@ -1 +0,0 @@
-export const fromOtherFile = 'value in another file';