Prevent nonintelligent monsters such as slimes from being charmed.

For now, constructs like golems are still affected, but that may also be something to consider changing in the future.
This change prevents charm monster from affecting these monsters, as well as singing and oratory.

ChangeLog

@@ -1,3 +1,16 @@
+Prevent nonintelligent living monsters from being charmable.
+This includes acid spheres, slimes, blobs, and some others.
+Basically all of these are of race slime.
+Mechanically, these monsters don't have a brain, so they logically cannot be charmed.
+monster/acid/acidsphere.arc
+monster/acid/slimecrawler/slimecrawler.arc
+monster/acid/bpudding.arc
+monster/acid/greenslime.arc
+monster/acid/slime.arc
+monster/misc/blob.arc
+monster/misc/firechest.arc
+Daniel Hawkins 2023-05-01
+
 Add one_hit to magic missile.
 For server version a763845fa3 or later, this will prevent magic missiles from
 having a magic-bullet-like piercing effect when they overkill enemies. For

monster/acid/acidsphere.arc

@@ -38,4 +38,7 @@ speed 0.01
 anim_speed 1
 exp 100
 one_hit 1
+# It's literally a blob of acid.
+# Charming it would require it to have intellect
+no_mood_change 1
 end

monster/acid/bpudding.arc

@@ -26,6 +26,7 @@ attacktype 64
 resist_fire -100
 resist_blind 100
 hitback 1
+no_mood_change 1
 end
 Object black_pudding_grow
 name black pudding
@@ -50,6 +51,7 @@ level 7
 attacktype 64
 resist_fire -100
 hitback 1
+no_mood_change 1
 end
 Object black_pudding_split
 name black pudding
@@ -74,4 +76,5 @@ level 7
 attacktype 64
 resist_fire -100
 hitback 1
+no_mood_change 1
 end

monster/acid/greenslime.arc

@@ -21,4 +21,5 @@ attacktype 64
 hitback 1
 hp 40
 maxhp 40
+no_mood_change 1
 end

monster/acid/slime.arc

@@ -28,4 +28,5 @@ maxhp 5
 level 1
 speed 0.06
 weight 20000
+no_mood_change 1
 end

monster/acid/slimecrawler/slimecrawler.arc

@@ -30,4 +30,5 @@ resist_cold 50
 resist_physical 40
 resist_acid 90
 resist_blind 80
+no_mood_change 1
 end

monster/misc/blob.arc

@@ -27,4 +27,5 @@ weight 50000
 run_away 100
 pick_up 64
 attacktype 1
+no_mood_change 1
 end

monster/misc/firechest.arc

@@ -12,4 +12,5 @@ level 1
 no_pick 1
 resist_fire 100
 direction 0
+no_mood_change 1
 end