return function() local playerLookVector = nil local function updateLookVector() -- pitch: -- 0 => positive Z -- 90 => negative X local yawr = math.rad(player.yaw) local pitchr = math.rad(player.pitch) local cosPitch = math.cos(pitchr) local x = cosPitch * -math.sin(yawr) local z = cosPitch * math.cos(yawr) local y = math.sin(pitchr) playerLookVector = {x, y, z, x = x, y = y, z = z} return playerLookVector end local function dotProduct3(u, v) return u.x * v.x + u.y * v.y + u.z * v.z end local function vec3Scale(k, v) return {k * v.x, k * v.y, k * v.z} end local function vec3Add(u, v) return {u.x + v.x, u.y + v.y, u.z + v.z} end local function toFrontCoords(entity) local dotResult = dotProduct3(entity, playerLookVector) if dotResult >= 0.0 then return {x = entity.x, y = entity.y, z = entity.z, flipped = false} end local result = vec3Add(entity, vec3Scale(-2 * dotResult, playerLookVector)) result.flipped = true return result end local cache = {} while _G._running do updateLookVector() for id, entry in pairs(cache) do if nearbyEntitiesByUUID[id] == nil then entry.cube.remove() entry.frame.remove() cache[id] = nil end end for id, entity in pairs(nearbyEntitiesByUUID) do if id ~= player.id then if cache[id] == nil then cache[id] = {} cache[id].cube = canvas3d.addBox(0, 0, 0) cache[id].cube.setSize(0.5, 0.5, 0.5) cache[id].frame = canvas3d.addFrame({ 0, 0, 0 }) cache[id].text = cache[id].frame.addText({ 0, 0 }, "") end local entityFront = toFrontCoords(entity) if entityFront.flipped then cache[id].cube.setColor(0x004040FF) else cache[id].cube.setColor(0xFFC0C0FF) end cache[id].cube.setAlpha(0x20) cache[id].cube.setDepthTested(false) cache[id].frame.setDepthTested(false) cache[id].cube.setPosition(entityFront.x - 0.25, entityFront.y - 0.25, entityFront.z - 0.25) cache[id].frame.setPosition(entityFront.x, entityFront.y, entityFront.z) cache[id].text.setAlpha(0xFF) cache[id].text.setText(entity.name .. "\n" .. textutils.serialize(entity)) if entityFront.flipped then cache[id].text.setColor(0x00FFFFFF) else cache[id].text.setColor(0xFF0000FF) end end end os.sleep(0.05) end end