Try to change the Dwarven Miner's image to the withstuff variant in

the appropriate move_to events.  This doesn't break anything but it
doesn't work yet either -- needs fixing by a WML expert.

data/campaigns/Sceptre_of_Fire/scenarios/4_Gathering_Materials.cfg

@@ -324,6 +324,8 @@
                     [/not]
                 [/filter]
 
+                {DWARVEN_MINERS_LOAD_UP x,y=$x,$y}
+
                 [message]
                     speaker=unit
                     message= _ "I have all the coal I can carry..."
@@ -359,6 +361,8 @@
                     [/not]
                 [/filter]
 
+                {DWARVEN_MINERS_LOAD_UP x,y=$x,$y}
+
                 [message]
                     speaker=unit
                     message= _ "I have all the coal I can carry..."
@@ -389,6 +393,8 @@
                     [/not]
                 [/filter]
 
+                {DWARVEN_MINERS_LOAD_UP x,y=$x,$y}
+
                 [message]
                     speaker=unit
                     message= _ "Here is the mine of precious gold! Send the miners this way."
@@ -414,6 +420,8 @@
                     [/not]
                 [/filter]
 
+                {DWARVEN_MINERS_LOAD_UP x,y=$x,$y}
+
                 [message]
                     speaker=unit
                     message= _ "I have all the gold I can carry..."

data/campaigns/Sceptre_of_Fire/units/Dwarvish_Miner.cfg

@@ -60,3 +60,31 @@
         [/frame]
     [/attack_anim]
 [/unit]
+
+#define DWARVEN_MINERS_LOAD_UP FILTER
+    # Load up all Dwarvish Miners satisfying FILTER; changes unit images.
+    # This is the body of MODIFY_UNIT with some arguments bound.
+    [store_unit]
+        [filter]
+            type=Dwarvish Miner
+            {FILTER}
+        [/filter]
+
+        variable=MODIFY_UNIT_store
+        kill=yes
+    [/store_unit]
+
+    {FOREACH MODIFY_UNIT_store MODIFY_UNIT_i}
+    [set_variable]
+        name=MODIFY_UNIT_store[$MODIFY_UNIT_i].image
+        value=units/dwarves/miner-withstuff.png
+    [/set_variable]
+
+    [unstore_unit]
+        variable=MODIFY_UNIT_store[$MODIFY_UNIT_i]
+        find_vacant=no
+    [/unstore_unit]
+    {NEXT MODIFY_UNIT_i}
+
+    {CLEAR_VARIABLE MODIFY_UNIT_store}
+#enddef