send mapblock block

blocks/send_mapblock.lua

@@ -0,0 +1,78 @@
+
+local update_formspec = function(meta)
+	local pos = meta:get_string("pos")
+
+	meta:set_string("infotext", "Send mapblock block: pos=" .. pos)
+
+	meta:set_string("formspec", "size[8,1;]" ..
+		-- col 2
+		"button_exit[0.1,0.5;4,1;setpos;Set position]" ..
+		"button_exit[4.1,0.5;4,1;showpos;Show]" ..
+		"")
+end
+
+minetest.register_node("epic:send_mapblock", {
+	description = "Epic send_mapblock block: sends the target mapblock to the client",
+	tiles = {
+		"epic_node_bg.png",
+		"epic_node_bg.png",
+		"epic_node_bg.png",
+		"epic_node_bg.png",
+		"epic_node_bg.png",
+		"epic_node_bg.png^epic_anchor.png",
+	},
+	paramtype2 = "facedir",
+	groups = {cracky=3,oddly_breakable_by_hand=3,epic=1},
+	on_rotate = screwdriver.rotate_simple,
+
+	on_construct = function(pos)
+    local meta = minetest.get_meta(pos)
+		meta:set_string("pos", minetest.pos_to_string({x=0, y=0, z=0}))
+    update_formspec(meta, pos)
+  end,
+
+  on_receive_fields = function(pos, _, fields, sender)
+		if not sender or minetest.is_protected(pos, sender:get_player_name()) then
+			-- not allowed
+			return
+		end
+
+		local meta = minetest.get_meta(pos);
+		local playername = sender:get_player_name()
+
+		if fields.setpos then
+			minetest.chat_send_player(playername, "[epic] Please punch the desired target position")
+			epic.punchnode_callback({
+			  timeout = 300,
+			  callback = function(punch_pos)
+					local pos_str = minetest.pos_to_string(epic.to_relative_pos(pos, punch_pos))
+					meta:set_string("pos", pos_str)
+					minetest.chat_send_player(playername, "[epic] target position successfully set to " .. pos_str)
+					update_formspec(meta)
+				end
+			})
+		end
+
+		if fields.showpos then
+			local target_pos = minetest.string_to_pos(meta:get_string("pos"))
+			if target_pos then
+				epic.show_waypoint(sender:get_player_name(), epic.to_absolute_pos(pos, target_pos), "Target position", 2)
+			end
+		end
+
+  end,
+
+	epic = {
+    on_enter = function(pos, meta, player, ctx)
+			local rel_pos = minetest.string_to_pos(meta:get_string("pos"))
+			local target_pos = epic.to_absolute_pos(pos, rel_pos)
+			local block_pos = {
+				x = math.floor(target_pos.x / 16),
+				y = math.floor(target_pos.y / 16),
+				z = math.floor(target_pos.z / 16)
+			}
+			player:send_mapblock(block_pos)
+			ctx.next()
+    end
+  }
+})

init.lua

@@ -52,6 +52,7 @@ dofile(MP.."/blocks/stats.lua")
 dofile(MP.."/blocks/review.lua")
 dofile(MP.."/blocks/branch.lua")
 dofile(MP.."/blocks/kill_count.lua")
+dofile(MP.."/blocks/send_mapblock.lua")
 dofile(MP.."/blocks/set_node.lua")
 dofile(MP.."/blocks/set_clouds.lua")
 dofile(MP.."/blocks/set_gravity.lua")