Terminator

glasses=peripheral.wrap("left")
sensor=peripheral.wrap("right")

--local currentPlayer=nil
local currentPlayer="darkbobo00"
local guiSize="normal"

local guiSizes={
    ["small"]={["x"]=1920,["y"]=1057},
    ["normal"]={["x"]=960,["y"]=540},
    ["large"]={["x"]=640,["y"]=353},
    --["auto"]={["x"]=,["y"]=},
}
local screenX=0
local screenY=0

function setScreenSize(guiSize,x,y)
    if guiSize==nil then
        screenX=x
        screenY=y
        return true,screenX,screenY
    else
        screenX=guiSizes[guiSize]["x"]
        screenY=guiSizes[guiSize]["y"]
        return true,screenX,screenY
    end
    return false
end

local function drawBackground()
    glasses.clear()
    backgroundBox=glasses.addBox(0,0,screenX,screenY,0xff0000,0.2)
    glasses.addBox(0,0,screenX,10,0x000000,255)
    glasses.addBox(0,screenY-10,10,screenY,0x000000,255)
    glasses.addBox(screenX-10,0,10,screenY,0x000000,255)
    glasses.addBox(0,0,10,screenY,0x000000,255)
end

local function drawSituation(player)
    local allData=sensor.getPlayerData(player)
    local x=screenX*0.1
    local y=screenX*0.4
    healthBox=glasses.addBox(x-3,y-3,x+6,y+6,0x000000,0.2)
    healthBox=glasses.addBox(x,y,x,y/2,0xff0000,0.2)
end

function systemBoot()
    setScreenSize(guiSize)
    drawBackground()
    drawSituation(currentPlayer)
end
systemBoot()