src/Matter/World.js
function buildEdgeVertex(index, x, y, tileBody, isGhost) {
	let vertex = {
		x: x,
		y: y,
		index: index,
		body: tileBody,
		isInternal: false,
		isGhost: isGhost,
		contact: null
	};
	
	vertex.contact = {
		vertex: vertex,
		normalImpulse: 0,
		tangentImpulse: 0
	};
	
	return vertex;
}
function buildEdgeVertex(index, x, y, tileBody, isGhost) {
	let vertex = {
		x: x,
		y: y,
		index: index,
		body: tileBody,
		isInternal: false,
		isGhost: isGhost,
		contact: null
	};
	
	vertex.contact = {
		vertex: vertex,
		normalImpulse: 0,
		tangentImpulse: 0
	};
	
	return vertex;
}
function buildEdgeVertex ( index , x , y , tileBody , isGhost ) { let vertex = { x : x , y : y , index : index , body : tileBody , isInternal : false , isGhost : isGhost , contact : null } ; vertex . contact = { vertex : vertex , normalImpulse : 0 , tangentImpulse : 0 } ; return vertex ; }
Build a vertex for an edge.

@param {int} index
@param {number} x
@param {number} y
@param {Object} tileBody
@param {boolean} [isGhost]
Build a vertex for an edge .