switchcraft movment program

local modules = peripheral.find("neuralInterface")
if not modules then
    error("Must have a neural interface", 0)
end



if not modules.hasModule("plethora:glasses") then error("Must have the overlay glasses", 0) end
if not modules.hasModule("plethora:kinetic", 0) then error("Must have a kinetic agument", 0) end
canvas = modules.canvas()
power = 1
playerData = modules.getMetaByName("Skyslayer415")





function info(X,Y, TEXT)
canvas.clear()
    local text = canvas.addText({ x = X, y = Y }, "")
text.setScale(1)

  text.setText(TEXT)
end


function MaxPower(currentPower, Max)
        if currentPower > Max then return(Max)
        elseif currentPower < 1 then return(1)
        else return(currentPower)
end end


while true do
local event, key = os.pullEvent()

if not modules.hasModule("plethora:sensor") then error("Must have a sensor", 0) end
playerData = modules.getMetaByName("Skyslayer415")

     info(1,1,"press I,J,K,K to move in flight, C to fire weapon,Y to raise power, H to lower power, power is ["..power.."]")
        if event == "key" and key == keys.i then
                modules.launch(playerData.yaw, playerData.pitch+40, MaxPower(power, 4))
            elseif event == "key" and key == keys.j then
                modules.launch(playerData.yaw-90, playerData.pitch+40,MaxPower(power, 4))
            elseif event == "key" and key == keys.l then
                modules.launch(playerData.yaw+90, playerData.pitch+40, MaxPower(power, 4))
            elseif event == "key" and key == keys.k then
                modules.launch(playerData.yaw-180, playerData.pitch+40, MaxPower(power, 4))
            elseif event == "key" and key == keys.c then
                modules.fire(playerData.yaw, playerData.pitch, MaxPower(power, 5))
            elseif event == "key" and key == keys.y then
                power = MaxPower(power+1, 5)
            elseif event == "key" and key == keys.h then
                power = power-1

            end end