Clean up personality "magic numbers"-->defined constants

src/mutation_data.cpp

@@ -217,14 +217,14 @@ bool mut_personality_score::load( const JsonObject &jsobj, const std::string_vie
 {
     JsonObject j = jsobj.get_object( member );
 
-    optional( j, false, "min_aggression", min_aggression, -10 );
-    optional( j, false, "max_aggression", max_aggression, 10 );
-    optional( j, false, "min_bravery", min_bravery, -10 );
-    optional( j, false, "max_bravery", max_bravery, 10 );
-    optional( j, false, "min_collector", min_collector, -10 );
-    optional( j, false, "max_collector", max_collector, 10 );
-    optional( j, false, "min_altruism", min_altruism, -10 );
-    optional( j, false, "max_altruism", max_altruism, 10 );
+    optional( j, false, "min_aggression", min_aggression, NPC_PERSONALITY_MIN );
+    optional( j, false, "max_aggression", max_aggression, NPC_PERSONALITY_MAX );
+    optional( j, false, "min_bravery", min_bravery, NPC_PERSONALITY_MIN );
+    optional( j, false, "max_bravery", max_bravery, NPC_PERSONALITY_MAX );
+    optional( j, false, "min_collector", min_collector, NPC_PERSONALITY_MIN );
+    optional( j, false, "max_collector", max_collector, NPC_PERSONALITY_MAX );
+    optional( j, false, "min_altruism", min_altruism, NPC_PERSONALITY_MIN );
+    optional( j, false, "max_altruism", max_altruism, NPC_PERSONALITY_MAX );
 
     return true;
 }

src/npc.cpp

@@ -559,16 +559,18 @@ void npc::randomize( const npc_class_id &type, const npc_template_id &tem_id )
 
     set_wielded_item( item( "null", calendar::turn_zero ) );
     inv->clear();
-    personality.aggression = rng( -10, 10 );
-    personality.bravery    = rng( -3, 10 );
-    personality.collector  = rng( -1, 10 );
-    // Normal distribution. Mean = 0, stddev = 3, clamp at -10 and 10. Rounded to return integer value.
-    personality.altruism   = std::round( std::max( -10.0, std::min( normal_roll( 0, 3 ), 10.0 ) ) );
+    personality.aggression = rng( NPC_PERSONALITY_MIN, NPC_PERSONALITY_MAX );
+    personality.bravery    = rng( -3, NPC_PERSONALITY_MAX );
+    personality.collector  = rng( -1, NPC_PERSONALITY_MAX );
+    // Normal distribution. Mean = 0, stddev = 3, clamp at NPC_PERSONALITY_MIN and NPC_PERSONALITY_MAX. Rounded to return integer value.
+    personality.altruism   = std::round( std::clamp( normal_roll( 0, 3 ),
+                                         static_cast<double>( NPC_PERSONALITY_MIN ), static_cast<double>( NPC_PERSONALITY_MAX ) ) );
     moves = 100;
     mission = NPC_MISSION_NULL;
     male = one_in( 2 );
     pick_name();
     randomize_height();
+    // Normally 16-55, but potential violence towards *underage* NPCs is a more problematic than towards adults.
     set_base_age( rng( 18, 55 ) );
     str_max = dice( 4, 3 );
     dex_max = dice( 4, 3 );
@@ -622,12 +624,14 @@ void npc::randomize( const npc_class_id &type, const npc_template_id &tem_id )
     personality.collector += myclass->roll_collector();
     personality.altruism += myclass->roll_altruism();
 
-    personality.aggression = std::clamp( personality.aggression, NPC_PERSONALITY_MIN,
-                                         NPC_PERSONALITY_MAX );
-    personality.bravery = std::clamp( personality.bravery, NPC_PERSONALITY_MIN, NPC_PERSONALITY_MAX );
-    personality.collector = std::clamp( personality.collector, NPC_PERSONALITY_MIN,
-                                        NPC_PERSONALITY_MAX );
-    personality.altruism = std::clamp( personality.altruism, NPC_PERSONALITY_MIN, NPC_PERSONALITY_MAX );
+    personality.aggression = std::clamp<int8_t>( personality.aggression,
+                             NPC_PERSONALITY_MIN, NPC_PERSONALITY_MAX );
+    personality.bravery = std::clamp<int8_t>( personality.bravery,
+                          NPC_PERSONALITY_MIN, NPC_PERSONALITY_MAX );
+    personality.collector = std::clamp<int8_t>( personality.collector,
+                            NPC_PERSONALITY_MIN, NPC_PERSONALITY_MAX );
+    personality.altruism = std::clamp<int8_t>( personality.altruism,
+                           NPC_PERSONALITY_MIN, NPC_PERSONALITY_MAX );
 
     for( Skill &skill : Skill::skills ) {
         int level = myclass->roll_skill( skill.ident() );

src/npc.h

@@ -57,8 +57,8 @@ class npc_class;
 class talker;
 class vehicle;
 
-constexpr int8_t NPC_PERSONALITY_MIN = -10;
-constexpr int8_t NPC_PERSONALITY_MAX = 10;
+constexpr int NPC_PERSONALITY_MIN = -10;
+constexpr int NPC_PERSONALITY_MAX = 10;
 constexpr float NPC_DANGER_VERY_LOW = 5.0f;
 constexpr float NPC_MONSTER_DANGER_MAX = 150.0f;
 constexpr float NPC_CHARACTER_DANGER_MAX = 250.0f;

src/npc_attack.cpp

@@ -312,7 +312,7 @@ void npc_attack_melee::use( npc &source, const tripoint &location ) const
         }
     } else if( source.mem_combat.formation_distance != -1 &&
                source.mem_combat.formation_distance <= target_distance &&
-               rng( -10, 10 ) > source.personality.aggression ) {
+               rng( NPC_PERSONALITY_MIN, NPC_PERSONALITY_MAX ) > source.personality.aggression ) {
         add_msg_debug( debugmode::DF_NPC_MOVEAI,
                        "<color_light_gray>%s decided to fall back to formation with allies.</color>", source.name );
         source.look_for_player( get_player_character() );

src/npctalk_funcs.cpp

@@ -1290,7 +1290,8 @@ void talk_function::npc_thankful( npc &p )
     if( p.chatbin.first_topic != p.chatbin.talk_friend ) {
         p.chatbin.first_topic = p.chatbin.talk_stranger_friendly;
     }
-    p.personality.aggression -= 1;
+    int8_t &aggro = p.personality.aggression;
+    aggro = std::clamp<int8_t>( aggro - 1, NPC_PERSONALITY_MIN, NPC_PERSONALITY_MAX );
 
 }