Navmesh the conversion between the name, layer index, and layer value

    //gets the layer value that the object is currently standing on, 1, 2, 4, 8,     Public Static intGetagentlayer (navmeshagent agent) {Navmeshhit hit; BOOLreach = Navmesh.sampleposition (Agent.transform.position, outHit , Agent.radius, Agent.walkablemask); returnHit.mask; }    //NAV layer name-to-layer index (several), 0, 1, 2, 3, 4     Public Static intAgentlayernametoindex (stringname) {        returnnavmesh.getnavmeshlayerfromname (name); }    //NAV layer name-to-layer values, 1, 2, 4, 8,     Public Static intAgentlayernametovalue (stringname) {        intIDX =navmesh.getnavmeshlayerfromname (name); return(int) Mathf.pow (2, IDX); }    //checks if an object layer is open     Public Static BOOLIsnavmeshlayeropen (navmeshagent agent,stringlayername) {        intLayervalue =Navmesh.getnavmeshlayerfromname (LayerName); if(Layervalue = =-1)            return true; intret = Agent.walkablemask & (0x1<<layervalue); returnRET >0?true:false; }     //open a navigation layer     Public Static voidEnablenavmeshlayer (navmeshagent agent,stringlayername) {        if(Agent = =NULL)            return; intLayervalue =Navmesh.getnavmeshlayerfromname (LayerName); if(Layervalue = =-1)            return; intMask = Agent.walkablemask |0x1<<Layervalue; Agent.walkablemask=mask;; }    //close a navigation layer     Public Static voidDisablenavmeshlayer (navmeshagent agent,stringlayername) {        if(Agent = =NULL)            return; intLayervalue =Navmesh.getnavmeshlayerfromname (LayerName); if(Layervalue = =-1)            return; intMask = agent.walkablemask & ~ (0x1<<layervalue); Agent.walkablemask=mask;; }

Navmesh the conversion between the name, layer index, and layer value