From a4f5ae5b89f60a1c1a918089d8474e2f37430561 Mon Sep 17 00:00:00 2001
From: number Zero <numzer0@yandex.ru>
Date: Mon, 27 Aug 2018 00:17:35 +0300
Subject: [PATCH] Remove tiny (+0.001) selection box oversize

---
 mesecons_extrawires/corner.lua    | 3 ++-
 mesecons_extrawires/crossover.lua | 8 ++++----
 mesecons_extrawires/tjunction.lua | 3 ++-
 mesecons_insulated/init.lua       | 6 ++++--
 4 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/mesecons_extrawires/corner.lua b/mesecons_extrawires/corner.lua
index 61ce933..d33447a 100644
--- a/mesecons_extrawires/corner.lua
+++ b/mesecons_extrawires/corner.lua
@@ -2,13 +2,14 @@ local screwdriver_exists = minetest.global_exists("screwdriver")
 
 local corner_nodebox = {
 	type = "fixed",
+	-- ±0.001 is to prevent z-fighting
 	fixed = {{ -16/32-0.001, -17/32, -3/32, 0, -13/32, 3/32 },
 		   { -3/32, -17/32, -16/32+0.001, 3/32, -13/32, 3/32}}
 }
 
 local corner_selectionbox = {
 		type = "fixed",
-		fixed = { -16/32-0.001, -16/32, -16/32, 5/32, -12/32, 5/32 },
+		fixed = { -16/32, -16/32, -16/32, 5/32, -12/32, 5/32 },
 }
 
 local corner_get_rules = function (node)
diff --git a/mesecons_extrawires/crossover.lua b/mesecons_extrawires/crossover.lua
index 277b87c..2656d61 100644
--- a/mesecons_extrawires/crossover.lua
+++ b/mesecons_extrawires/crossover.lua
@@ -32,7 +32,7 @@ minetest.register_node("mesecons_extrawires:crossover_off", {
 	is_ground_content = false,
 	walkable = false,
 	stack_max = 99,
-	selection_box = {type="fixed", fixed={-16/32-0.0001, -16/32, -16/32-0.001, 16/32+0.001, -5/32, 16/32+0.001}},
+	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
 	groups = {dig_immediate=3, mesecon=3},
 	sounds = default.node_sound_defaults(),
 	mesecons = {
@@ -59,7 +59,7 @@ minetest.register_node("mesecons_extrawires:crossover_01", {
 	is_ground_content = false,
 	walkable = false,
 	stack_max = 99,
-	selection_box = {type="fixed", fixed={-16/32-0.0001, -16/32, -16/32-0.001, 16/32+0.001, -5/32, 16/32+0.001}},
+	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
 	groups = {dig_immediate=3, mesecon=3, not_in_creative_inventory=1},
 	sounds = default.node_sound_defaults(),
 	mesecons = {
@@ -86,7 +86,7 @@ minetest.register_node("mesecons_extrawires:crossover_10", {
 	is_ground_content = false,
 	walkable = false,
 	stack_max = 99,
-	selection_box = {type="fixed", fixed={-16/32-0.0001, -16/32, -16/32-0.001, 16/32+0.001, -5/32, 16/32+0.001}},
+	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
 	groups = {dig_immediate=3, mesecon=3, not_in_creative_inventory=1},
 	sounds = default.node_sound_defaults(),
 	mesecons = {
@@ -113,7 +113,7 @@ minetest.register_node("mesecons_extrawires:crossover_on", {
 	is_ground_content = false,
 	walkable = false,
 	stack_max = 99,
-	selection_box = {type="fixed", fixed={-16/32-0.0001, -16/32, -16/32-0.001, 16/32+0.001, -5/32, 16/32+0.001}},
+	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
 	groups = {dig_immediate=3, mesecon=3, not_in_creative_inventory=1},
 	sounds = default.node_sound_defaults(),
 	mesecons = {
diff --git a/mesecons_extrawires/tjunction.lua b/mesecons_extrawires/tjunction.lua
index 9a520d1..77c4290 100644
--- a/mesecons_extrawires/tjunction.lua
+++ b/mesecons_extrawires/tjunction.lua
@@ -2,13 +2,14 @@ local screwdriver_exists = minetest.global_exists("screwdriver")
 
 local tjunction_nodebox = {
 	type = "fixed",
+	-- ±0.001 is to prevent z-fighting
 	fixed = {{ -16/32-0.001, -17/32, -3/32, 16/32+0.001, -13/32, 3/32 },
 		 { -3/32, -17/32, -16/32+0.001, 3/32, -13/32, -3/32},}
 }
 
 local tjunction_selectionbox = {
 		type = "fixed",
-		fixed = { -16/32-0.001, -16/32, -16/32, 16/32+0.001, -12/32, 7/32 },
+		fixed = { -16/32, -16/32, -16/32, 16/32, -12/32, 7/32 },
 }
 
 local tjunction_get_rules = function (node)
diff --git a/mesecons_insulated/init.lua b/mesecons_insulated/init.lua
index e6e8232..ca55b9a 100644
--- a/mesecons_insulated/init.lua
+++ b/mesecons_insulated/init.lua
@@ -27,10 +27,11 @@ minetest.register_node("mesecons_insulated:insulated_on", {
 	sunlight_propagates = true,
 	selection_box = {
 		type = "fixed",
-		fixed = { -16/32-0.001, -16/32, -7/32, 16/32+0.001, -12/32, 7/32 }
+		fixed = { -16/32, -16/32, -7/32, 16/32, -12/32, 7/32 }
 	},
 	node_box = {
 		type = "fixed",
+		-- ±0.001 is to prevent z-fighting
 		fixed = { -16/32-0.001, -17/32, -3/32, 16/32+0.001, -13/32, 3/32 }
 	},
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
@@ -63,10 +64,11 @@ minetest.register_node("mesecons_insulated:insulated_off", {
 	sunlight_propagates = true,
 	selection_box = {
 		type = "fixed",
-		fixed = { -16/32-0.001, -16/32, -7/32, 16/32+0.001, -12/32, 7/32 }
+		fixed = { -16/32, -16/32, -7/32, 16/32, -12/32, 7/32 }
 	},
 	node_box = {
 		type = "fixed",
+		-- ±0.001 is to prevent z-fighting
 		fixed = { -16/32-0.001, -17/32, -3/32, 16/32+0.001, -13/32, 3/32 }
 	},
 	groups = {dig_immediate = 3},