Add vendor NPC type

raws/spawns.json

@@ -265,7 +265,7 @@
         "power": 4
       },
       "vision_range": 4,
-      "ai": "bystander"
+      "ai": "vendor"
     },
     {
       "name": "Shady Salesman",
@@ -283,7 +283,7 @@
         "power": 4
       },
       "vision_range": 4,
-      "ai": "bystander"
+      "ai": "vendor"
     },
     {
       "name": "Patron",
@@ -355,7 +355,7 @@
         "power": 4
       },
       "vision_range": 4,
-      "ai": "bystander"
+      "ai": "vendor"
     },
     {
       "name": "Clothier",
@@ -373,7 +373,7 @@
         "power": 4
       },
       "vision_range": 4,
-      "ai": "bystander"
+      "ai": "vendor"
     },
     {
       "name": "Alchemist",
@@ -391,7 +391,7 @@
         "power": 4
       },
       "vision_range": 4,
-      "ai": "bystander"
+      "ai": "vendor"
     },
     {
       "name": "Mom",

src/components.rs

@@ -240,6 +240,9 @@ pub struct Door {
 #[derive(Component, Debug, Serialize, Deserialize, Clone)]
 pub struct Bystander {}
 
+#[derive(Component, Debug, Serialize, Deserialize, Clone)]
+pub struct Vendor {}
+
 // Serialization helper code. We need to implement ConvertSaveLoad for each type that contains an
 // Entity.
 

src/main.rs

@@ -534,6 +534,7 @@ fn main() -> ::rltk::BError {
         BlocksVisibility,
         Door,
         Bystander,
+        Vendor,
     );
 
     gs.ecs.insert(SimpleMarkerAllocator::<SerializeMe>::new());

src/player.rs

@@ -5,7 +5,7 @@ use ::specs::prelude::*;
 
 use crate::components::{
     BlocksTile, BlocksVisibility, CombatStats, Door, EntityMoved, HungerClock, HungerState, Item,
-    Monster, Player, Position, Renderable, Viewshed, WantsToMelee, WantsToPickupItem,
+    Monster, Player, Position, Renderable, Vendor, Viewshed, WantsToMelee, WantsToPickupItem,
 };
 use crate::game_log::GameLog;
 use crate::{Bystander, Map, RunState, State, TileType};
@@ -24,6 +24,7 @@ pub fn try_move_player(delta_x: i32, delta_y: i32, ecs: &mut World) {
     let mut blocks_movement = ecs.write_storage::<BlocksTile>();
     let mut renderables = ecs.write_storage::<Renderable>();
     let bystanders = ecs.read_storage::<Bystander>();
+    let vendors = ecs.read_storage::<Vendor>();
 
     let mut swap_entities: Vec<(Entity, i32, i32)> = Vec::new();
 
@@ -40,7 +41,9 @@ pub fn try_move_player(delta_x: i32, delta_y: i32, ecs: &mut World) {
         let destination_idx = map.xy_idx(pos.x + delta_x, pos.y + delta_y);
 
         for potential_target in map.tile_content[destination_idx].iter() {
-            if bystanders.get(*potential_target).is_some() {
+            let bystander = bystanders.get(*potential_target);
+            let vendor = vendors.get(*potential_target);
+            if bystander.is_some() || vendor.is_some() {
                 // Note that we want to move the bystander
                 swap_entities.push((*potential_target, pos.x, pos.y));
 

src/raws/rawmaster.rs

@@ -215,6 +215,7 @@ pub fn spawn_named_mob(
         match mob_template.ai.as_ref() {
             "melee" => eb = eb.with(Monster {}),
             "bystander" => eb = eb.with(Bystander {}),
+            "vendor" => eb = eb.with(Vendor {}),
             _ => {}
         };
 

src/saveload_system.rs

@@ -90,6 +90,7 @@ pub fn save_game(ecs: &mut World) {
             BlocksVisibility,
             Door,
             Bystander,
+            Vendor,
         );
     }
 
@@ -182,6 +183,7 @@ pub fn load_game(ecs: &mut World) {
             BlocksVisibility,
             Door,
             Bystander,
+            Vendor,
         );
     }