You will have to look into ue4 raytracing. a simple interaction will work something like this: on press of E key u do a line trace and check if the line hits the door or not. if it does you use the Teleport function.
You will have to look into ue4 raytracing. a simple interaction will work something like this: on press of E key u do a line trace and check if the line hits the door or not. if it does you use the Teleport function.