straight shot mining laser

gistfile1.lua

	local playerpos = player:getpos()
	local dir, pos
	local power = 50 -- number of nodes lasered
	local node
	
	if (pointed_thing.type == "node") then
		dir = {
			x = pointed_thing.under.x - pointed_thing.above.x,
			y = pointed_thing.under.y - pointed_thing.above.y,
			z = pointed_thing.under.z - pointed_thing.above.z
		}
		
		pos = minetest.get_pointed_thing_position(pointed_thing,above)
		
		local i
		for i=0,power do
			node = minetest.env:get_node(pos)
			
			if (node.name == "ignore"
				or node.name == "default:lava_source"
				or node.name == "default:lava_flowing"
			) then
				return
			end
			
			if (node.name == "default:water_source"
				or node.name == "default:water_flowing"
			) then
				minetest.env:remove_node(pos)
				return
			end
			
			if player then
				minetest.node_dig(pos,node,player)
			end
			
			pos.x = pos.x + dir.x
			pos.y = pos.y + dir.y
			pos.z = pos.z + dir.z
		end
	end