From b8de7d4cf8b5378054fca850d8dcc49b61e2f1da Mon Sep 17 00:00:00 2001
From: Kelly Kinkade <kelly.lynn.martin@gmail.com>
Date: Tue, 20 Mar 2018 01:44:10 -0500
Subject: [PATCH] check for tile material == MINERAL in digtype (#1243)

---
 plugins/dig.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/plugins/dig.cpp b/plugins/dig.cpp
index 148da5482..d18176f5a 100644
--- a/plugins/dig.cpp
+++ b/plugins/dig.cpp
@@ -1522,6 +1522,8 @@ command_result digtype (color_ostream &out, vector <string> & parameters)
                 tt = mCache->tiletypeAt(current);
                 if (!DFHack::isWallTerrain(tt))
                     continue;
+                if (tileMaterial(tt) != df::enums::tiletype_material::MINERAL)
+                    continue;
 
                 //designate it for digging
                 df::tile_designation des = mCache->designationAt(current);