From 75d17c630ed46b5073c2cf3fc4c634478a035a03 Mon Sep 17 00:00:00 2001
From: protocol_1903 <67478786+protocol-1903@users.noreply.github.com>
Date: Tue, 25 Aug 2026 00:34:19 -0700
Subject: [PATCH] Fixed misaligned pipe connection graphics. Resolves
 https://github.com/pyanodon/pybugreports/issues/1540

---
 changelog.txt                               |  1 +
 prototypes/buildings/cooling-tower-mk01.lua |  4 ++--
 prototypes/buildings/cooling-tower-mk02.lua |  4 ++--
 prototypes/buildings/glassworks.lua         | 10 +++++-----
 prototypes/buildings/hpf.lua                |  4 ++--
 prototypes/buildings/niobium-mine.lua       |  2 +-
 6 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/changelog.txt b/changelog.txt
index 78e3a10a..3565a88c 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -3,6 +3,7 @@ Version: 3.1.4
 Date: ????
   Changes:
     - Fixed that assembling machine fluidbox connections were referenced instead of copied. Resolves https://github.com/pyanodon/pybugreports/issues/1551
+    - Fixed misaligned pipe connection graphics. Resolves https://github.com/pyanodon/pybugreports/issues/1540
 ---------------------------------------------------------------------------------------------------
 Version: 3.1.3
 Date: 2026-07-16
diff --git a/prototypes/buildings/cooling-tower-mk01.lua b/prototypes/buildings/cooling-tower-mk01.lua
index b60c66c0..374f7fb1 100644
--- a/prototypes/buildings/cooling-tower-mk01.lua
+++ b/prototypes/buildings/cooling-tower-mk01.lua
@@ -61,14 +61,14 @@ ENTITY {
     fluid_boxes = {
         {
             production_type = "input",
-            pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {-0.0, -0.9}, nil, nil),
+            pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {-0.0, -0.75}, nil, nil),
             pipe_covers = py.pipe_covers(false, true, true, true),
             volume = 100,
             pipe_connections = {{flow_direction = "input", position = {1.0, 0.0}, direction = defines.direction.east}}
         },
         {
             production_type = "output",
-            pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {-0.0, -0.9}, nil, nil),
+            pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {-0.0, -0.75}, nil, nil),
             pipe_covers = py.pipe_covers(false, true, true, true),
             volume = 100,
             pipe_connections = {{flow_direction = "output", position = {-1.0, 0.0}, direction = defines.direction.west}}
diff --git a/prototypes/buildings/cooling-tower-mk02.lua b/prototypes/buildings/cooling-tower-mk02.lua
index 937807b0..4a6e58af 100644
--- a/prototypes/buildings/cooling-tower-mk02.lua
+++ b/prototypes/buildings/cooling-tower-mk02.lua
@@ -87,14 +87,14 @@ ENTITY {
     fluid_boxes = {
         {
             production_type = "input",
-            pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {-0.05, -0.7}, nil, nil, pipes),
+            pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {-0.0, -0.75}, nil, nil),
             pipe_covers = py.pipe_covers(false, true, true, true),
             volume = 100,
             pipe_connections = {{flow_direction = "input", position = {1.0, -2.0}, direction = defines.direction.north}}
         },
         {
             production_type = "output",
-            pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {-0.05, -0.7}, nil, nil, pipes),
+            pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {-0.0, -0.75}, nil, nil),
             pipe_covers = py.pipe_covers(false, true, true, true),
             volume = 100,
             pipe_connections = {{flow_direction = "output", position = {-1.0, -2.0}, direction = defines.direction.north}}
diff --git a/prototypes/buildings/glassworks.lua b/prototypes/buildings/glassworks.lua
index abdf9562..7bf53b70 100644
--- a/prototypes/buildings/glassworks.lua
+++ b/prototypes/buildings/glassworks.lua
@@ -156,7 +156,7 @@ for i = 1, 4 do
                     {flow_direction = "input-output", position = {-3.0, 0}, direction = defines.direction.west}
                 },
                 pipe_covers = py.pipe_covers(false, true, true, true),
-                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.96}, nil, nil),
+                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.75}, nil, nil),
                 production_type = "input",
             },
             effectivity = 1,
@@ -199,28 +199,28 @@ for i = 1, 4 do
             --1
             {
                 production_type = "input",
-                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.96}, nil, nil),
+                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.75}, nil, nil),
                 pipe_covers = py.pipe_covers(false, true, true, true),
                 volume = 100,
                 pipe_connections = {{flow_direction = "input", position = {1.0, -3.0}, direction = defines.direction.north}}
             },
             {
                 production_type = "input",
-                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.96}, nil, nil),
+                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.75}, nil, nil),
                 pipe_covers = py.pipe_covers(false, true, true, true),
                 volume = 100,
                 pipe_connections = {{flow_direction = "input", position = {-1.0, -3.0}, direction = defines.direction.north}}
             },
             {
                 production_type = "input",
-                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.96}, nil, nil),
+                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.75}, nil, nil),
                 pipe_covers = py.pipe_covers(false, true, true, true),
                 volume = 100,
                 pipe_connections = {{flow_direction = "input", position = {2.0, 3.0}, direction = defines.direction.south}}
             },
             {
                 production_type = "output",
-                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.96}, nil, nil),
+                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.75}, nil, nil),
                 pipe_covers = py.pipe_covers(false, true, true, true),
                 volume = 100,
                 pipe_connections = {{flow_direction = "output", position = {-2.0, 3.0}, direction = defines.direction.south}}
diff --git a/prototypes/buildings/hpf.lua b/prototypes/buildings/hpf.lua
index bef29162..6035a7ee 100644
--- a/prototypes/buildings/hpf.lua
+++ b/prototypes/buildings/hpf.lua
@@ -144,14 +144,14 @@ for i = 1, 4 do
         fluid_boxes = {
             {
                 production_type = "input",
-                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.96}, nil, nil),
+                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.75}, nil, nil),
                 pipe_covers = py.pipe_covers(false, true, true, true),
                 volume = 100,
                 pipe_connections = {{flow_direction = "input", position = {3.0, 0.0}, direction = defines.direction.east}}
             },
             {
                 production_type = "output",
-                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.96}, nil, nil),
+                pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {0.0, -0.75}, nil, nil),
                 pipe_covers = py.pipe_covers(false, true, true, true),
                 volume = 100,
                 pipe_connections = {{flow_direction = "output", position = {-3.0, 0.0}, direction = defines.direction.west}}
diff --git a/prototypes/buildings/niobium-mine.lua b/prototypes/buildings/niobium-mine.lua
index 9b16c64d..fd8bfd42 100644
--- a/prototypes/buildings/niobium-mine.lua
+++ b/prototypes/buildings/niobium-mine.lua
@@ -89,7 +89,7 @@ ENTITY {
     collision_box = {{-3.3, -3.3}, {3.3, 3.3}},
     selection_box = {{-3.5, -3.5}, {3.5, 3.5}},
     input_fluid_box = {
-        pipe_picture = py.pipe_pictures("assembling-machine-2", nil, {-3, 3}),
+        pipe_picture = require("__base__.prototypes.entity.assembler-pictures").assembler2pipepictures,
         pipe_covers = _G.pipecoverspictures(),
         volume = 200,
         pipe_connections = {