ComputerCraft Pictionary

-- Client program (run on each player's ComputerCraft computer)

-- Find the monitor
local monitor = peripheral.find("monitor")
if not monitor then
    print("No monitor found!")
    return
end

local blockWidth, blockHeight = 7, 5
local blocksHorizontal, blocksVertical = 8, 4
local width, height = blocksHorizontal * blockWidth, blocksVertical * blockHeight
local drawingData = {}  -- Table to store drawing data

-- Function to draw the received data on the monitor
function drawOnMonitor()
    monitor.clear()
    for _, pixel in ipairs(drawingData) do
        local blockX, blockY, color = pixel[1], pixel[2], pixel[3]
        -- Calculate pixel coordinates
        local startX = (blockX - 1) * blockWidth + 1
        local startY = (blockY - 1) * blockHeight + 1

        -- Draw the block
        for dx = 0, blockWidth - 1 do
            for dy = 0, blockHeight - 1 do
                local x = startX + dx
                local y = startY + dy
                if x >= 1 and x <= width and y >= 1 and y <= height then
                    monitor.setCursorPos(x, y)
                    monitor.setBackgroundColor(color)
                    monitor.write(" ")
                end
            end
        end
    end
end

-- Function to display the timer on the monitor
function displayTimer(timeLeft)
    monitor.setCursorPos(1, height)
    monitor.setBackgroundColor(colors.black)
    monitor.setTextColor(colors.white)
    monitor.write("Time left: " .. timeLeft)
end

-- Function to handle incoming messages from the server
function handleServerMessages()
    rednet.open("top")
    while true do
        local senderId, message = rednet.receive()

        if message:find("DRAWING") then
            drawingData = textutils.unserialize(message:sub(9))
            drawOnMonitor()
        elseif message:find("TIMER") then
            local timeLeft = message:sub(7)
            displayTimer(timeLeft)
        end
    end
end

-- Notify the server that this client has joined
rednet.open("top")
rednet.broadcast("JOIN")

handleServerMessages()