local CMD_QUEUE_TERRAMARKER = 39802

-- order of arguments is different than other command funcs for some silly reason, and wrong in the wiki
-- also options are passed as a bitfield instead of table
function widget:UnitCommand(unitID, unitDefID, teamID, cmdId, cmdOptions, cmdParams)
	if cmdId == CMD_QUEUE_TERRAMARKER then
		local oldParams = {}
		for i = 1, #cmdParams - 1, 1 do
			oldParams[i] = cmdParams[i]
		end
		local pos = - 1 -- this is the end of the queue and -should- be behind the terra-build order. however, sometimes it isn't
		Spring.GiveOrderToUnit(unitID, CMD.INSERT,{pos, cmdParams[#cmdParams], cmdOptions, unpack(oldParams)}, CMD.OPT_ALT)

	end

end


function widget:CommandNotify(cmdId, cmdParams, cmdOptions)

	if currentTerraformSelectedIndex > 1 then
		if cmdId < 0 then
			local unitDefId = -cmdId

			if unitDefId == 37 or unitDefId == 275 then

				local commandPos = {}
				commandPos.x = cmdParams[1]
				commandPos.y = cmdParams[2]
				commandPos.z = cmdParams[3]

				local terraformHowMuch = 0 + currentTerraformSelectedValue

				local unitWidth = 10
				local unitHeight = 10

				local rect = GetTerraRectByParams(commandPos.x, commandPos.z, unitWidth, unitHeight, commandPos.y + terraformHowMuch, 0, 0)

				local selectedUnits = Spring.GetSelectedUnits()
				local myTeamId = Spring.GetMyTeamID()
				local volumeSelection = 0
				local terraformParams = GetTerraParameters(1, rect, selectedUnits, myTeamId, volumeSelection)

				Spring.GiveOrderToUnit(selectedUnits[1], CMD_TERRAFORM_INTERNAL, terraformParams, {"shift"})

				local newParams = {}
				for i = 1, #cmdParams, 1 do
						newParams[i] = cmdParams[i]
				end
				newParams[#cmdParams+1]  = cmdId
				Spring.GiveOrderToUnit(selectedUnits[1], CMD_QUEUE_TERRAMARKER, newParams, cmdOptions)

				return true
			end
		end
	end
	return false
end