[WIP] Adds ability for weather to spawn monsters, and a new weather type, Mist, which uses it.

data/json/effects.json

@@ -1967,7 +1967,19 @@
   },
   {
     "type": "effect_type",
-    "id": "recently_coughed"
+    "id": "disrupted_sleep",
+    "max_duration": "72 h"
+  },
+  {
+    "type": "effect_type",
+    "id": "nightmares",
+    "max_duration": "72 h"
+  },
+  {
+    "type": "effect_type",
+    "id": "incorporeal",
+    "name": [ "Incorporeal" ],
+    "desc": [ "You have as much substance as mist does." ]
   },
   {
     "type": "effect_type",

data/json/monster_factions.json

@@ -201,5 +201,10 @@
     "type": "MONSTER_FACTION",
     "name": "triffid",
     "base_faction": "plant"
+  },
+  {
+    "type": "MONSTER_FACTION",
+    "name": "mist",
+    "neutral": [ "animal", "insect", "blob", "zombie", "zombie_aquatic", "plant", "bot", "blob", "nether", "jabberwock" ]
   }
 ]

data/json/monsters/mist.json

@@ -0,0 +1,84 @@
+[
+  {
+    "id": "mon_mist_wraith",
+    "type": "MONSTER",
+    "name": { "str": "Mist wraith" },
+    "description": "A wispy figure slightly more solid than the mist surrounding it.  Its form is constantly shifting and never distinct.",
+    "default_faction": "mist",
+    "species": [ "MIST" ],
+    "volume": "62500 ml",
+    "weight": "0 g",
+    "hp": 1,
+    "speed": 110,
+    "symbol": "X",
+    "color": "white",
+    "aggression": 100,
+    "morale": 100,
+    "dodge": 8,
+    "special_attacks": [ [ "DISSIPATE_DRAIN", 1 ] ],
+    "death_function": [ "DISSIPATE" ],
+    "flags": [ "FLIES", "NO_BREATHE", "SEES", "HEARS" ]
+  },
+  {
+    "id": "mon_mist_spectre",
+    "type": "MONSTER",
+    "name": { "str": "Mist spectre" },
+    "description": "A menacing figure slightly more solid than the mist surrounding it.  Its shape brings back painful memories.",
+    "default_faction": "mist",
+    "bodytype": "human",
+    "species": [ "MIST" ],
+    "volume": "62500 ml",
+    "weight": "0 g",
+    "hp": 1,
+    "speed": 110,
+    "symbol": "U",
+    "color": "white",
+    "aggression": 100,
+    "morale": 100,
+    "dodge": 9,
+    "special_attacks": [ [ "DISSIPATE_NIGHTMARES", 1 ], [ "DISSIPATE_FORCE_SCREAM", 1 ] ],
+    "death_function": [ "DISSIPATE" ],
+    "flags": [ "FLIES", "NO_BREATHE", "SEES", "HEARS" ]
+  },
+  {
+    "id": "mon_mist_phantom",
+    "type": "MONSTER",
+    "name": { "str": "Mist phantom" },
+    "description": "A hollow figure no more solid than the mist surrounding it.",
+    "default_faction": "mist",
+    "bodytype": "human",
+    "species": [ "MIST" ],
+    "volume": "62500 ml",
+    "weight": "0 g",
+    "hp": 1,
+    "speed": 110,
+    "symbol": "W",
+    "color": "white",
+    "aggression": 100,
+    "morale": 100,
+    "dodge": 10,
+    "special_attacks": [ [ "DISSIPATE_INCORPOREAL", 1 ] ],
+    "death_function": [ "DISSIPATE" ],
+    "flags": [ "FLIES", "NO_BREATHE", "SEES", "HEARS" ]
+  },
+  {
+    "id": "mon_mist_bag",
+    "type": "MONSTER",
+    "name": { "str": "Mist bag" },
+    "description": "A bag seemingly made of mist, it appears to be on the edge of bursting.",
+    "default_faction": "mist",
+    "bodytype": "human",
+    "species": [ "MIST" ],
+    "volume": "62500 ml",
+    "weight": "0 g",
+    "hp": 1,
+    "speed": 70,
+    "symbol": "B",
+    "color": "white",
+    "aggression": 100,
+    "morale": 100,
+    "special_attacks": [ [ "DISSIPATE", 1 ] ],
+    "death_function": [ "RELEASE_MIST" ],
+    "flags": [ "FLIES", "NO_BREATHE", "SEES", "HEARS" ]
+  }
+]

data/json/morale_types.json

@@ -383,5 +383,15 @@
     "id": "morale_perm_debug",
     "type": "morale_type",
     "text": "Debug Morale"
+  },
+  {
+    "id": "morale_traumatic_memory",
+    "type": "morale_type",
+    "text": "Relived a traumatic memory"
+  },
+  {
+    "id": "morale_nightmare",
+    "type": "morale_type",
+    "text": "Had a vivid nightmare"
   }
 ]

data/json/regional_map_settings.json

@@ -916,7 +916,51 @@
       "base_acid": 0.0,
       "base_wind": 3.4,
       "base_wind_distrib_peaks": 80,
-      "base_wind_season_variation": 50
+      "base_wind_season_variation": 50,
+      "mist": {
+        "mist_active": true,
+        "mist_scaling": 1.0,
+        "mist_frequency": 7,
+        "mist_length": 8,
+        "mist_increases_per": 10,
+        "mist_thick_threshold": 10,
+        "mist_stifling_threshold": 20
+      },
+      "weather_spawn": [
+        {
+          "index": 14,
+          "hallucinations": true,
+          "spawns": [ "mon_mist_wraith" ],
+          "time_between_spawns": 60,
+          "chance_to_spawn": 75,
+          "max_spawns": 2,
+          "max_radius": 8,
+          "min_radius": 5,
+          "message": "You feel the mist react to you and shapes form."
+        },
+        {
+          "index": 15,
+          "hallucinations": true,
+          "spawns": [ "mon_mist_wraith", "mon_mist_spectre" ],
+          "time_between_spawns": 50,
+          "chance_to_spawn": 75,
+          "max_spawns": 2,
+          "max_radius": 6,
+          "min_radius": 4,
+          "message": "The mist reacts to you and nightmarish shapes form."
+        },
+        {
+          "index": 16,
+          "hallucinations": true,
+          "spawns": [ "mon_mist_wraith", "mon_mist_spectre", "mon_mist_phantom" ],
+          "time_between_spawns": 40,
+          "chance_to_spawn": 75,
+          "max_spawns": 3,
+          "max_radius": 4,
+          "min_radius": 3,
+          "message": "The mist reflects your darkest thoughts and shapes form."
+        }
+      ]
     },
     "overmap_feature_flag_settings": { "clear_blacklist": false, "blacklist": [  ], "clear_whitelist": false, "whitelist": [  ] }
   }

data/json/snippets/mist.json

@@ -0,0 +1,53 @@
+[
+  {
+    "type": "snippet",
+    "category": "mist_increase_intensity",
+    "text": [ "The mist thickens.", "The mist feels slightly stronger and more alive." ]
+  },
+  {
+    "type": "snippet",
+    "category": "mist_arrives",
+    "text": [
+      "You blink and there is dense mist as far as you can see, which is much less than it used to be.",
+      "In an instant a thick mist descends upon the world, far too fast to be natural.  Or are you finally losing it?."
+    ]
+  },
+  {
+    "type": "snippet",
+    "category": "mist_leaves",
+    "text": [ "The mist evaporates like it was never there.", "In a heartbeat the mist is gone." ]
+  },
+  {
+    "type": "snippet",
+    "category": "mist_shouts",
+    "text": [
+      "I'm sorry mommy!",
+      "Please stop sir, that hurts!",
+      "Why?  I tried my best!",
+      "No, please get up, please be ok!",
+      "Why would you lie about THAT?",
+      "I never loved you!",
+      "I only ever tolerated you!",
+      "That's why I never trusted you!",
+      "It's not fair!",
+      "Enjoy the funeral, you sicko!",
+      "Help!",
+      "Cmon I can still be fun, there's no need for that!",
+      "I can do better, I promise, please!",
+      "I'm going to kill that son of a bitch!",
+      "That's no excuse!"
+    ]
+  },
+  {
+    "type": "snippet",
+    "category": "nightmares",
+    "text": [
+      "You awaken from a nightmare about being eaten alive while your friends applaud.",
+      "You awaken from a nightmare about being naked in a the arctic tundra and freezing to death.",
+      "You awaken from a nightmare about an unseen predator slowly killing you.",
+      "You awaken from a nightmare about killing those you love with your bare hands.",
+      "You awaken from a nightmare about being finally judged for your ill deeds.",
+      "You awaken from a nightmare about the cataclysm not having happened and being stuck in an office job."
+    ]
+  }
+]

data/json/species.json

@@ -123,6 +123,11 @@
     "id": "HUMAN",
     "description": "a human"
   },
+  {
+    "type": "SPECIES",
+    "id": "MIST",
+    "description": "a slightly solid shape in the mist"
+  },
   {
     "type": "SPECIES",
     "id": "UNKNOWN"

doc/REGION_SETTINGS.md

@@ -494,7 +494,8 @@ The **weather** section defines the base weather attributes used for the region.
 | `base_wind`                    | Base wind for the region in mph units. Roughly the yearly average.    |
 | `base_wind_distrib_peaks`      | How high the wind peaks can go. Higher values produce windier days.   |
 | `base_wind_season_variation`   | How the wind varies with season. Lower values produce more variation  |
-
+| `mist`   						 | Section defining mist, if this is missing mist is disabled
+| `weather_spawn`   			 | Section defining if monsters will spawn in weather  |
 ### Example
 
 ```json
@@ -512,6 +513,76 @@ The **weather** section defines the base weather attributes used for the region.
 }
 ```
 
+## Mist
+
+The **mist** section defines the base mist attributes used for the region.
+
+### Fields
+
+|     Identifier                 |                              Description                              |
+| ------------------------------ | --------------------------------------------------------------------- |
+| `mist_active`             	 | bool defining if the mist is enabled                   |
+| `mist_scaling`                 | float that affects how fast the mist grows more powerful with each appearance, at 0 the mist will not grow stronger each time |
+| `mist_frequency`               | the average number of days between mist appearances, the actual value is random between .5 and 1.5 this value minus scaling effects |
+| `mist_length`                  | the average number of hours the mist will last, the actual value is random between .7 and 1.3 this plus mist scaling effects |
+| `mist_increases_per`           | the number of times the mist will increase its intensity per instance |
+| `mist_thick_threshold`         | the intensity at which the mist will become thick instead of regular |
+
+### Example
+
+```json
+{
+	"mist": {
+        "mist_active": true,
+        "mist_scaling": 1.5,
+        "mist_frequency": 3,
+        "mist_length": 12,
+        "mist_increases_per": 10,
+        "mist_thick_threshold": 10,
+        "mist_stifling_threshold": 20
+      },
+}
+```
+
+
+## Weather Spawn
+
+The **weather_spawn** section defines creatures that will spawn in weather.
+
+### Fields
+
+|     Identifier                 |                              Description                              |
+| ------------------------------ | --------------------------------------------------------------------- |
+| `index`             	 		 | the index of the weather in the enum weather_type found in weather.h                    |
+| `hallucinations`               | bool determining whether the weather should spawn hallucinations for nearby creatures, if true this will be treated as another spawn |
+| `spawns`               		 | an array of the monster_ids of every monster you want to spawn, one will be chosen at random every spawn |
+| `time_between_spawns`          | the number of seconds between monster spawns |
+| `chance_to_spawn`           	 | the percent chance a monster will spawn for each spawn attempt in max_spawns |
+| `max_spawns`         			 | the maximum number of monsters/hallucinations that will spawn |
+| `max_radius`         			 | the maximum distance monsters/hallucinations will spawn from the target |
+| `min_radius`         			 | the closest distance monsters/hallucinations will spawn to the target |
+| `message`         			 | Message to be displayed if at least one non hallucination spawns |
+
+### Example
+
+```json
+{
+	"weather_spawn": [
+        {
+          "index": 14,
+          "hallucinations": true,
+          "spawns": [ "mon_mist_wraith" ],
+          "seconds_between_spawns": 60,
+          "chance_to_spawn": 75,
+          "max_spawns": 2,
+          "max_radius": 8,
+          "min_radius": 4,
+          "message": "You feel the mist react to you and shapes form."
+        }
+	]
+}
+```
+
 ## Overmap Feature Flag Settings
 
 The **overmap_feature_flag_settings** section defines operations that operate on the flags assigned to overmap features.

src/activity_item_handling.cpp

@@ -88,6 +88,8 @@ static const activity_id ACT_TIDY_UP( "ACT_TIDY_UP" );
 static const activity_id ACT_VEHICLE( "ACT_VEHICLE" );
 static const activity_id ACT_VEHICLE_DECONSTRUCTION( "ACT_VEHICLE_DECONSTRUCTION" );
 static const activity_id ACT_VEHICLE_REPAIR( "ACT_VEHICLE_REPAIR" );
+
+static const efftype_id effect_incorporeal( "incorporeal" );
 static const efftype_id effect_pet( "pet" );
 static const efftype_id effect_nausea( "nausea" );
 
@@ -2188,7 +2190,7 @@ static bool mine_activity( player &p, const tripoint &src_loc )
                ( itm.type->can_use( "JACKHAMMER" ) && itm.ammo_sufficient() );
     } );
     if( mining_inv.empty() || p.is_mounted() || p.is_underwater() || g->m.veh_at( src_loc ) ||
-        !g->m.has_flag( "MINEABLE", src_loc ) ) {
+        !g->m.has_flag( "MINEABLE", src_loc ) ||  p.has_effect( effect_incorporeal ) ) {
         return false;
     }
     item *chosen_item = nullptr;

src/animation.cpp

@@ -682,6 +682,7 @@ void game::draw_weather( const weather_printable &w )
     static const std::string weather_acid_drop {"weather_acid_drop"};
     static const std::string weather_rain_drop {"weather_rain_drop"};
     static const std::string weather_snowflake {"weather_snowflake"};
+    static const std::string weather_mist {"weather_mist"};
 
     std::string weather_name;
     switch( w.wtype ) {
@@ -704,6 +705,11 @@ void game::draw_weather( const weather_printable &w )
         case WEATHER_SNOWSTORM:
             weather_name = weather_snowflake;
             break;
+        case WEATHER_MIST:
+        case WEATHER_THICK_MIST:
+        case WEATHER_STIFLING_MIST:
+            weather_name = weather_mist;
+            break;
         default:
             break;
     }