From f7323afe1031a551ed292a958370e583e9688e23 Mon Sep 17 00:00:00 2001
From: VorTechnix <45538536+VorTechnix@users.noreply.github.com>
Date: Sun, 18 Jul 2021 17:27:37 -0700
Subject: [PATCH] wireframe corner

---
 .../lib/wireframe/corner_set.lua              | 32 +++++++++++++++++++
 .../commands/wireframe/wcorner.lua            | 30 +++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 worldeditadditions/lib/wireframe/corner_set.lua

diff --git a/worldeditadditions/lib/wireframe/corner_set.lua b/worldeditadditions/lib/wireframe/corner_set.lua
new file mode 100644
index 0000000..822c7e1
--- /dev/null
+++ b/worldeditadditions/lib/wireframe/corner_set.lua
@@ -0,0 +1,32 @@
+--  ██████  ██████  ██████  ███    ██ ███████ ██████      ███████ ███████ ████████
+-- ██      ██    ██ ██   ██ ████   ██ ██      ██   ██     ██      ██         ██
+-- ██      ██    ██ ██████  ██ ██  ██ █████   ██████      ███████ █████      ██
+-- ██      ██    ██ ██   ██ ██  ██ ██ ██      ██   ██          ██ ██         ██
+--  ██████  ██████  ██   ██ ██   ████ ███████ ██   ██     ███████ ███████    ██
+
+--- Puts a node at each corner of selection box.
+-- @param	{Position}	pos1	The 1st position defining the WorldEdit selection
+-- @param	{Position}	pos2	The 2nd positioon defining the WorldEdit selection
+-- @param	{string}	node	Name of the node to place
+function worldeditadditions.corner_set(pos1,pos2,node)
+	local node_id_replace = minetest.get_content_id(node)
+	
+	-- Fetch the nodes in the specified area
+	local manip, area = worldedit.manip_helpers.init(pos1, pos2)
+	local data = manip:get_data()
+	
+	-- z y x is the preferred loop order (because CPU cache I'd guess, since then we're iterating linearly through the data array)
+	local counts = { replaced = 0 }
+	for k,z in pairs({pos1.z,pos2.z}) do
+		for k,y in pairs({pos1.y,pos2.y}) do
+			for k,x in pairs({pos1.x,pos2.x}) do
+				data[area:index(x, y, z)] = node_id_replace
+				counts.replaced = counts.replaced + 1
+			end
+		end
+	end
+	-- Save the modified nodes back to disk & return
+	worldedit.manip_helpers.finish(manip, data)
+	
+	return true, counts.replaced
+end
diff --git a/worldeditadditions_commands/commands/wireframe/wcorner.lua b/worldeditadditions_commands/commands/wireframe/wcorner.lua
index e69de29..fb66d60 100644
--- a/worldeditadditions_commands/commands/wireframe/wcorner.lua
+++ b/worldeditadditions_commands/commands/wireframe/wcorner.lua
@@ -0,0 +1,30 @@
+-- ██     ██  ██████  ██████  ██████  ███    ██ ███████ ██████
+-- ██     ██ ██      ██    ██ ██   ██ ████   ██ ██      ██   ██
+-- ██  █  ██ ██      ██    ██ ██████  ██ ██  ██ █████   ██████
+-- ██ ███ ██ ██      ██    ██ ██   ██ ██  ██ ██ ██      ██   ██
+--  ███ ███   ██████  ██████  ██   ██ ██   ████ ███████ ██   ██
+local wea = worldeditadditions
+worldedit.register_command("wcorner", {
+	params = "<node>",
+	description = "Set the corners of the current selection to <node>",
+	privs = {worldedit=true},
+	require_pos = 2,
+	parse = function(param)
+		local node = worldedit.normalize_nodename(param)
+		if not node then
+			return false, "invalid node name: " .. param
+		end
+		return true, node
+	end,
+	nodes_needed = function(name)
+		local p1, p2, total = worldedit.pos1[name], worldedit.pos2[name], 1
+		for k,v in pairs({"x","y","z"}) do
+			if p1[v] ~= p2[v] then total = total*2 end
+		end
+		return total
+	end,
+	func = function(name, node)
+		local _, count = wea.corner_set(worldedit.pos1[name], worldedit.pos2[name], node)
+		return _, count .. " nodes set"
+	end,
+})