TS RayCasting

!Travis

!Raycast Example

Tutorial

Overview

TS RayCasting is tiny and fast raycast library written in Typescript.

$3

!castray-example

#### castRay(map, x, y, intersection, rayRot)

``typescript
castRay(map: number[][], x: number, y: number, intersection: testintersection, rayRot: number): IRay
`

Will cast ray from position in map, which is two-dimensional world of numbers, where
every number means a specific wall. To check if ray already hit a wall, there's intersection
callback. If testfunction returns false, then it'll stop casting ray further and
it means that wall was hit.

#### castRays(map, x, y, rot, intersection, config)

`typescript
castRays(map: number[][], x: number, y: number, rot: number, intersection: testintersection, config: IRayConf = defaultConfig): IRay[]
`

Will cast several rays from position in map, which is two-dimensional world of numbers,
where every number means a specific wall. rot is direction of camera or caster.
To check if ray already hit a wall, there's intersection callback.
If testfunction returns false, then it'll stop casting ray further and it
means that wall was hit.

#### intersection(row, column, dist, index)

`typescript
type testintersection = (row: number, column: number, dist: number, index: number) => boolean;
`

It's same callback in both castRay and castRays function, where is put a
logic of hitting a wall. If testFunctions returns false, it'll stop casting
ray further (specific ray, not all rays in castRays function).

Devs

- npm run build build library, everything will be in dist/ folder
- npm run build:web build minified raycast library for browser
- npm run build:node build library with all declaration files
- npm run build:example build examples
- npm run lint` lint all .ts files