-- LUA Script - precede every function and global member with lowercase name of script + '_main'
 -- check these are nil first so we can carry over from over levels or saves etc if needs be

g_woodcollected    = g_woodcollected   or 0
g_iingot           = g_iingot          or 0
g_singot           = g_singot          or 0
g_carboncollected  = g_carboncollected or 0

-- added the other material items here if needed
 
local benchtomake = 1 

local benchnames = { "Planks", "Logs", "Nails", "Steel Plate"}

local woodneeded   = { 4, 6, 0, 0 }     -- ingredience used to craft each item listed downwards
local iingotneeded = { 0, 0, 0, 4 }
local singotneeded   = { 0, 0, 1, 0 }
local carbonneeded = { 0, 0, 0, 2 }

local maxbench = 4 
  
function workbench_init(e)
end

local pressed = false

function workbench_main(e)

    --check player is near the funace
    if GetPlayerDistance(e) < 80 then
	
	       --show shop text 
        TextCenterOnX( 50, 59, 1, "Press 1 ~ " .. maxbench .. " to select the Equiptment to craft" )
        TextCenterOnX( 50, 62, 1, "Press E to Craft a " .. benchnames[benchtomake] )
         --show how much player has in inventory
        TextCenterOnX( 50, 65, 1, "No of Wood = " .. g_woodcollected .. "  No of Iron Ingots = " .. g_iingot .. "  No of Steel plating = " .. g_singot .. "  No of Carbon = " .. g_carboncollected)
  
        --check player presses a number key and it corresponds to our items above 
        if g_Scancode > 1 and g_Scancode <= maxbench+1 then -- +1  because scancodes start at 2 for number 1 
            benchtomake = g_Scancode-1 
        end
		
        --find out if player has enough of each material seperately 
        local havewood   = g_woodcollected   >= woodneeded[benchtomake]
		local haveiingot = g_iingot          >= iingotneeded[benchtomake]
        local havesingot = g_singot          >= singotneeded[benchtomake]
		local havecarbon = g_carboncollected >= carbonneeded[benchtomake]
			
        --now we will show number in red if player doesn't have enough 
        if havewood then
            TextCenterOnX(50,68,1,woodneeded[benchtomake])
        else
            TextCenterOnXColor(50,68,1,woodneeded[benchtomake],255,0,0)
        end
        TextCenterOnX(50,71,1,"Wood required")
		
        if haveiingot then
            TextCenterOnX(50,74,1,iingotneeded[benchtomake])
        else
            TextCenterOnXColor(50,74,1,iingotneeded[benchtomake],255,0,0)
        end
        TextCenterOnX(50,77,1,"Iron Ingots required")
		
        if havesingot then
            TextCenterOnX(50,80,1,singotneeded[benchtomake])
        else
            TextCenterOnXColor(50,80,1,singotneeded[benchtomake],255,0,0)
        end
        TextCenterOnX(50,83,1,"Steel Plate required")
		
        if havecarbon then
            TextCenterOnX(50,86,1,carbonneeded[benchtomake])
        else
            TextCenterOnXColor(50,86,1,carbonneeded[benchtomake],255,0,0)
        end
        TextCenterOnX(50,89,1,"Carbon required")		
         
        --if player presses E to craft 
        if g_KeyPressE == 1 then
			if not pressed then
				pressed = true
			
			   --not enough materials 
				if havewood and haveiingot and havesingot and havecarbon then
				
					PlaySound(e,1)
					g_woodcollected = g_woodcollected - woodneeded[benchtomake]
					g_iingot = g_iingot - iingotneeded[benchtomake]
					g_singot = g_singot - singotneeded[benchtomake]
					g_carboncollected = g_carboncollected - carbonneeded[benchtomake]
					
					local benchName = benchnames[benchtomake]
					PromptDuration( "You Crafted a " .. benchName, 2000 ) 
					
					if benchName == "Planks" then 
						g_planks = g_planks + 1  
			
					elseif benchName == "Logs" then
						g_logs = g_logs + 1  
			
					elseif benchName == "Nails" then
						g_nails = g_nails + 10
									
					elseif benchName ==  "Steel Plate" then
						g_singot = g_singot + 1
					end
				else
					PromptDuration("You do not have enough Items to craft  " .. benchnames[benchtomake], 2000)
				end
			end	
		else
			pressed = false
        end
    end
end