voxel-raycast

voxel-raycast
=============
Ray casting queries for voxel.js

Installation
============
Via npm:

npm install voxel-raycast

Example
=======
Here is how you could use the library to make a ray query:

var traceRay = require("voxel-raycast").bind({}, voxels);

var hit_normal = new Array(3);
var hit_position = new Array(3);
var hit_block = traceRay([0,0,0], [1,0,0], 10.0, hit_positions, hit_normal);

if(hit_block > 0) {
console.log("Hit:", hit_block, hit_position, hit_normal);
} else {
console.log("Miss");
}

$3

Casts a ray against a voxel.js game instance.

* voxels is the main voxel.js instance
* origin is the origin of the ray
* direction is the direction of the ray
* max_d is a limit on the distance the ray can travel
* hit_position is the point of impact of the ray and the voxel world
* hit_normal is the normal of the ray impact

Returns the block type of the voxel that the ray cast hit, or if no voxel was encountered returns -1.

Credits
=======
(c) 2013 Mikola Lysenko. BSD License