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planck-js

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2D JavaScript/TypeScript physics engine for cross-platform HTML5 game development

github.com/piqnt/planck.js

piqnt/planck.js

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# Class: Transform A transform contains translation and rotation. It is used to represent the position and orientation of rigid frames. Initialize using a position vector and a rotation. ## Constructors ### new Transform() > **new Transform**(`position`?, `rotation`?): [`Transform`](/api/classes/Transform) #### Parameters • **position?**: [`Vec2Value`](/api/interfaces/Vec2Value) • **rotation?**: `number` #### Returns [`Transform`](/api/classes/Transform) ## Properties ### p > **p**: [`Vec2`](/api/classes/Vec2) position *** ### q > **q**: [`Rot`](/api/classes/Rot) rotation ## Methods ### set() #### set(position, rotation) > **set**(`position`, `rotation`): `void` Set position and angle ##### Parameters • **position**: [`Vec2Value`](/api/interfaces/Vec2Value) • **rotation**: `number` ##### Returns `void` #### set(xf) > **set**(`xf`): `void` Copy from another transform ##### Parameters • **xf**: [`TransformValue`](/api/type-aliases/TransformValue) ##### Returns `void` *** ### setIdentity() > **setIdentity**(): `void` Set this to the identity transform #### Returns `void` *** ### setNum() > **setNum**(`position`, `rotation`): `void` Set position and angle #### Parameters • **position**: [`Vec2Value`](/api/interfaces/Vec2Value) • **rotation**: `number` #### Returns `void` *** ### setTransform() > **setTransform**(`xf`): `void` #### Parameters • **xf**: [`TransformValue`](/api/type-aliases/TransformValue) #### Returns `void` *** ### assert() > `static` **assert**(`o`): `void` #### Parameters • **o**: `any` #### Returns `void` *** ### clone() > `static` **clone**(`xf`): [`Transform`](/api/classes/Transform) #### Parameters • **xf**: [`Transform`](/api/classes/Transform) #### Returns [`Transform`](/api/classes/Transform) *** ### identity() > `static` **identity**(): [`Transform`](/api/classes/Transform) #### Returns [`Transform`](/api/classes/Transform) *** ### isValid() > `static` **isValid**(`obj`): `boolean` #### Parameters • **obj**: `any` #### Returns `boolean` *** ### mul() #### mul(a, b) > `static` **mul**(`a`, `b`): [`Vec2`](/api/classes/Vec2) ##### Parameters • **a**: [`TransformValue`](/api/type-aliases/TransformValue) • **b**: [`Vec2Value`](/api/interfaces/Vec2Value) ##### Returns [`Vec2`](/api/classes/Vec2) #### mul(a, b) > `static` **mul**(`a`, `b`): [`Transform`](/api/classes/Transform) ##### Parameters • **a**: [`TransformValue`](/api/type-aliases/TransformValue) • **b**: [`TransformValue`](/api/type-aliases/TransformValue) ##### Returns [`Transform`](/api/classes/Transform) *** ### mulAll() #### mulAll(a, b) > `static` **mulAll**(`a`, `b`): [`Vec2`](/api/classes/Vec2)[] ##### Parameters • **a**: [`Transform`](/api/classes/Transform) • **b**: [`Vec2Value`](/api/interfaces/Vec2Value)[] ##### Returns [`Vec2`](/api/classes/Vec2)[] #### mulAll(a, b) > `static` **mulAll**(`a`, `b`): [`Transform`](/api/classes/Transform)[] ##### Parameters • **a**: [`Transform`](/api/classes/Transform) • **b**: [`Transform`](/api/classes/Transform)[] ##### Returns [`Transform`](/api/classes/Transform)[] *** ### mulT() #### mulT(a, b) > `static` **mulT**(`a`, `b`): [`Vec2`](/api/classes/Vec2) ##### Parameters • **a**: [`TransformValue`](/api/type-aliases/TransformValue) • **b**: [`Vec2Value`](/api/interfaces/Vec2Value) ##### Returns [`Vec2`](/api/classes/Vec2) #### mulT(a, b) > `static` **mulT**(`a`, `b`): [`Transform`](/api/classes/Transform) ##### Parameters • **a**: [`TransformValue`](/api/type-aliases/TransformValue) • **b**: [`TransformValue`](/api/type-aliases/TransformValue) ##### Returns [`Transform`](/api/classes/Transform) *** ### mulTVec2() > `static` **mulTVec2**(`a`, `b`): [`Vec2`](/api/classes/Vec2) #### Parameters • **a**: [`TransformValue`](/api/type-aliases/TransformValue) • **b**: [`Vec2Value`](/api/interfaces/Vec2Value) #### Returns [`Vec2`](/api/classes/Vec2) *** ### mulTXf() > `static` **mulTXf**(`a`, `b`): [`Transform`](/api/classes/Transform) #### Parameters • **a**: [`TransformValue`](/api/type-aliases/TransformValue) • **b**: [`TransformValue`](/api/type-aliases/TransformValue) #### Returns [`Transform`](/api/classes/Transform) *** ### mulVec2() > `static` **mulVec2**(`a`, `b`): [`Vec2`](/api/classes/Vec2) #### Parameters • **a**: [`TransformValue`](/api/type-aliases/TransformValue) • **b**: [`Vec2Value`](/api/interfaces/Vec2Value) #### Returns [`Vec2`](/api/classes/Vec2) *** ### mulXf() > `static` **mulXf**(`a`, `b`): [`Transform`](/api/classes/Transform) #### Parameters • **a**: [`TransformValue`](/api/type-aliases/TransformValue) • **b**: [`TransformValue`](/api/type-aliases/TransformValue) #### Returns [`Transform`](/api/classes/Transform)