[OC] Liquid Monitor

--Пользовательские настройки
local fluids = {
    Water = 0x1c86ee;
    Lava = 0xee4000;
    Milk = 0xfdf5e6;
}
local name

local comp = component
local table_insert, unpack, comp_list = table.insert, table.unpack, component.list
name = name or "Monitor"
local color = 0x1c86ee
local gpu = component.proxy(component.list("gpu")())
gpu.bind(component.list("screen")())
local width, height = gpu.getResolution()
gpu.fill(1, 1, width, height, " ")
local cell_w
local function drawBox(x, y, w, h)
    gpu.fill(x+1, y, w-2, 1, "═")
    gpu.set(x, y, "╔")
    gpu.set(x+w-1, y, "╗")
    for i=1, h-2 do
        gpu.set(x, y+i, "║")
        gpu.set(x+w-1, y+i, "║")
    end
    gpu.fill(x+1, y+h-1, w-2, 1, "═")
    gpu.set(x, y+h-1, "╚")
    gpu.set(x+w-1, y+h-1, "╝")
end

local meta = {
    __index = {
        update = function(self)
            local side, tank, n = unpack(self)
            local x, y = cell_w*(n-1)+3, 5
            local info = tank.getFluidInTank(side)[1]
            if not info.label then return end
            local k = info.amount/info.capacity
            gpu.set(x, y-1, ("═"):rep(cell_w-2))
            local name = (info.label or "Empty"):sub(1, cell_w-2)
            gpu.set(x-1+cell_w/2-#name/2, y-1, name)
            local k2 = 1 - k
            local color = fluids[info.label] or color
            local h = height-5
            gpu.setBackground(color)
            gpu.fill(x, y+h*k2, cell_w-2, h*k+0.85, "─")
            gpu.setBackground(0x000000)
            gpu.fill(x, y, cell_w-2, h*k2, " ")
            if k ~= 1 then
                if info.amount <= (info.capacity/h)*(h/2) then
                    gpu.setBackground(0x000000)
                else
                    gpu.setBackground(color)
                end
                gpu.set(x+cell_w/2-#tostring(info.amount)/2-2, y+h/2-1, info.amount.." mb")
            end
            gpu.setBackground(0x000000)
            gpu.set(x, y+h, ("max "..info.capacity.." mb"):sub(1, cell_w-2))
        end;
        draw = function(self)
            local side, tank, n = unpack(self)
            local x, y = cell_w*(n-1)+2, 4
            drawBox(x, y, cell_w, height-3)
            for i=1, height-5 do
                gpu.set(x, y+i, "╟")
                gpu.set(x+cell_w-1, y+i, "╢")
            end
            self:update()
        end;
    };
}

local tank_list = { }
for address, name in comp_list("tank_controller") do
    local comp = comp.proxy(address)
    for i=1, 5 do
        if comp.getTankCapacity(i) then
            table_insert(tank_list, setmetatable({i, comp, #tank_list+1}, meta))
        end
    end
end
cell_w = math.floor(width/(#tank_list)-1)

gpu.setBackground(0x000000)
gpu.setForeground(0xffffff)
drawBox(math.floor(width/2-name:len()/2), 1, #name+2, 3)
gpu.set(math.floor(width/2-name:len()/2)+1, 2, name)
for key, tank in ipairs(tank_list) do
    tank:draw()
end

while true do
    for key, tank in ipairs(tank_list) do
        tank:update()
    end
end