slide a point along a wall / surface / triangle mesh [eg for games, slide camera along wall upon collision]
slide a point along a wall / implicit surface / triangle mesh [eg for games, slide camera along wall upon collision]
``sh`
npm i slide-along-wall
`javascript
var saw = require('slide-along-wall');
var camera_oldPosition = [0,10,0]; //old camera position [x,y,z]
var camera_newPosition = [0,-10,0]; //desired camera position after some movement
//usage with list of triangles:
var triangles = [ triangle1, triangle2, ... ]; //each triangle = [[x,y,z],[x,y,z],[x,y,z]]
var camera_positionAfterSliding =
saw.slideAlongTriangles(camera_newPosition, camera_oldPosition, triangles)
// optional raytracingFunction param:
// saw.slideAlongTriangles(camera_newPosition, camera_oldPosition, triangles, raytracingFunction)
//// raytracingFunction is auto-generated if not provided,
//// and can be pulled out after and reused with saw.getRecentTracingFunction(),
//// or you can generate one separately with saw.generateTracingFunction(triangles)
//usage with implicit surface / distance function:
var distanceFunction = function(x,y,z){
return y; //this function represents a "floor"
}
var camera_positionAfterSliding =
saw.slideAlongDistanceFunction(camera_newPosition, camera_oldPosition, distanceFunction);
``
