create radars

local str = "Hello"
local monitor = peripheral.find("monitor")
local modem = peripheral.find("modem", rednet.open)
--create_radar:monitor is the name of the monitor block from Create Radars
local radar = peripheral.find("create_radar:monitor")

local inc = 0
local tracksList = radar.getTracks()
local targetTrack
local playerTrack

local computerPos = vector.new(7.3,111.0,4.850)

local randomPos = vector.new(25,108.0,15.850)

-- REDNET

function sendMessagePos(id, pos)
        rednet.send(id, pos)
end


-- MAIN UPDATE
function update()
    tracksList = radar.getTracks()
    findImportantTracks()
    monitor.clear()
    monitor.setCursorPos(1,1)
    monitor.write("Hi "..inc .. ", num: " .. #tracksList .. ", stuff: "..tracksList[1].id)
    monitor.setCursorPos(1,2)
    if (playerTrack ~= nil) then
        monitor.write("dist between pc and play: " .. distance(computerPos,playerTrack.position))
    end
    --monitor.write("pos1: " .. vec3ToString(computerPos) .. "pos2: " .. vec3ToString(computerPos))
    inc = inc+1
    --printAllTracks()
    printImportantTracks()
    sendMessagePos(5,playerTrack.position)
end
--- MATH
function distance(v1,v2)
    if v1 == nil then return end
    if v2 == nil then return end
    return math.sqrt((v2.x - v1.x) ^ 2 + (v2.y - v1.y) ^ 2 + (v2.z - v1.z) ^ 2 )
end

--- PRINT
function printAllTracks()
    local cursorY = 2
    monitor.setCursorPos(1,cursorY)
    for i = 1,#tracksList,1 do
        monitor.write(getTrackInfoString(tracksList[i]))
        cursorY = cursorY + 1
        monitor.setCursorPos(1,cursorY)
        monitor.write("--> POS: " .. vec3ToString(tracksList[i].position))
        cursorY = cursorY + 1
        monitor.setCursorPos(1,cursorY)
    end
end

function printImportantTracks()
    local cursorX, cursorY = monitor.getCursorPos()
    monitor.setCursorPos(1,cursorY+1)
    -- player track
    if (playerTrack ~= nil) then
        monitor.write(getTrackInfoString(playerTrack))
        cursorY = cursorY + 1
        monitor.setCursorPos(1,cursorY)
        monitor.write("--> POS: " .. vec3ToString(playerTrack.position))
    end
    --
end

function vec3ToString(vec3)
    local str = ("(x:" .. math.floor(vec3.x+0.5) .. ", y:" .. math.floor(vec3.y+0.5) .. ", z:" .. math.floor(vec3.z+0.5) .. ")")
    return str
end

--- TRACK UTILS

function findImportantTracks()
    --find player track
    for i = 1,#tracksList,1 do
        if tracksList[i].category == "PLAYER" then
            playerTrack = tracksList[i]
        end
    end
end

function getTrackInfoString(track)
    -- categories: vs2 ship = "VS2", player = "PLAYER", create contraption = "CONTRAPTION", passive mob = "ANIMAL", hostile mob = "HOSTILE"
    -- vs2 ships get randomly generated id's that are human readable apparently
    -- type just gives you the actual type of the entity, ex: entity.minecraft.pig, VS2:ship
    local str = ("- Cat: " .. track.category .. ", ID:" .. ", type: " .. track.entityType)
    return str
end



--- MAIN
monitor.setTextScale(0.5)

while true do
    sleep(0.5)
    update()
end