Add entities to mark the WorldEdit region positions and add the //reset command. Document regions, and the //reset command.

mark.lua

@@ -0,0 +1,68 @@
+worldedit.marker1 = {}
+worldedit.marker2 = {}
+
+--marks worldedit region position 1
+worldedit.mark_pos1 = function(name)
+	local pos = worldedit.pos1[name]
+	if worldedit.marker1[name] == nil then --marker does not yet exist
+		if pos ~= nil then --add marker
+			worldedit.marker1[name] = minetest.env:add_entity(pos, "worldedit:pos1")
+		end
+	else --marker already exists
+		if pos == nil then --remove marker
+			worldedit.marker1[name]:remove()
+			worldedit.marker1[name] = nil
+		else --move marker
+			worldedit.marker1[name]:setpos(pos)
+		end
+	end
+end
+
+--marks worldedit region position 2
+worldedit.mark_pos2 = function(name)
+	local pos = worldedit.pos2[name]
+	if worldedit.marker2[name] == nil then --marker does not yet exist
+		if pos ~= nil then --add marker
+			worldedit.marker2[name] = minetest.env:add_entity(pos, "worldedit:pos2")
+		end
+	else --marker already exists
+		if pos == nil then --remove marker
+			worldedit.marker2[name]:remove()
+			worldedit.marker2[name] = nil
+		else --move marker
+			worldedit.marker2[name]:setpos(pos)
+		end
+	end
+end
+
+minetest.register_entity("worldedit:pos1", {
+	initial_properties = {
+		visual = "cube",
+		visual_size = {x=1.1, y=1.1},
+		textures = {"worldedit_pos1.png", "worldedit_pos1.png",
+			"worldedit_pos1.png", "worldedit_pos1.png",
+			"worldedit_pos1.png", "worldedit_pos1.png"},
+		collisionbox = {-0.55, -0.55, -0.55, 0.55, 0.55, 0.55},
+	},
+	on_punch = function(self, hitter)
+		self.object:remove()
+		local name = hitter:get_player_name()
+		worldedit.marker1[name] = nil
+	end,
+})
+
+minetest.register_entity("worldedit:pos2", {
+	initial_properties = {
+		visual = "cube",
+		visual_size = {x=1.1, y=1.1},
+		textures = {"worldedit_pos2.png", "worldedit_pos2.png",
+			"worldedit_pos2.png", "worldedit_pos2.png",
+			"worldedit_pos2.png", "worldedit_pos2.png"},
+		collisionbox = {-0.55, -0.55, -0.55, 0.55, 0.55, 0.55},
+	},
+	on_punch = function(self, hitter)
+		self.object:remove()
+		local name = hitter:get_player_name()
+		worldedit.marker2[name] = nil
+	end,
+})