From dd3c4d06ac2dfd19e907e552f282949449f278f0 Mon Sep 17 00:00:00 2001
From: Patrick 'Quezler' Mounier <patrick@queztech.net>
Date: Mon, 6 Jan 2020 17:32:18 +0100
Subject: [PATCH] Mass driver place range assist (#1331)

---
 .../world/blocks/distribution/MassDriver.java          | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/core/src/mindustry/world/blocks/distribution/MassDriver.java b/core/src/mindustry/world/blocks/distribution/MassDriver.java
index 2974fe457f..f55c31fd28 100644
--- a/core/src/mindustry/world/blocks/distribution/MassDriver.java
+++ b/core/src/mindustry/world/blocks/distribution/MassDriver.java
@@ -162,6 +162,16 @@ public class MassDriver extends Block{
     @Override
     public void drawPlace(int x, int y, int rotation, boolean valid){
         Drawf.dashCircle(x * tilesize, y*tilesize, range, Pal.accent);
+
+        // check if a mass driver is selected while placing this driver
+        if(!control.input.frag.config.isShown()) return;
+        Tile selected = control.input.frag.config.getSelectedTile();
+        if(!(selected.block() instanceof MassDriver) || !(selected.dst(x * tilesize, y * tilesize) <= range)) return;
+
+        // if so, draw a dotted line towards it while it is in range
+        Lines.stroke(2f, Pal.placing);
+        Lines.dashLine(x * tilesize, y * tilesize, selected.drawx(), selected.drawy(), (int)range / tilesize / 4);
+        Draw.reset();
     }
 
     @Override