fun: lootz!

common/packets/trait-update-receptacle-item-full.packet.js

@@ -0,0 +1,29 @@
+import msgpack from 'msgpack-lite';
+
+import {Packet} from '@avocado/net';
+
+export class TraitUpdateReceptacleItemFullPacket extends Packet {
+
+  static pack(packet) {
+    const data = packet.data[1];
+    data.json = msgpack.encode(data.json);
+    return super.pack(packet);
+  }
+
+  static get schema() {
+    return {
+      ...super.schema,
+      data: {
+        slotIndex: 'uint16',
+        json: 'buffer',
+      },
+    };
+  }
+
+  static unpack(packet) {
+    const data = super.unpack(packet);
+    data.json = msgpack.decode(data.json);
+    return data;
+  }
+
+}

common/traits/lootable.trait.js

@@ -0,0 +1,68 @@
+import {compose, Property} from '@avocado/core';
+import {StateProperty, Trait, Entity} from '@avocado/entity';
+import {Rectangle, Vector} from '@avocado/math';
+
+const decorate = compose(
+  StateProperty('lootable', {
+    track: true,
+  }),
+);
+
+export class Lootable extends decorate(Trait) {
+
+  static defaultParams() {
+    return {
+      table: [],
+    };
+  }
+
+  static defaultState() {
+    return {
+      lootable: true,
+    };
+  }
+
+  static type() {
+    return 'lootable';
+  }
+
+  constructor(entity, params, state) {
+    super(entity, params, state);
+  }
+
+  calculateLoot() {
+    const jsons = [];
+    const roll = Math.random() * 100;
+    for (const {perc, json} of this.params.table) {
+      if (perc > roll) {
+        jsons.push(json);
+      }
+    }
+    return jsons;
+  }
+
+  listeners() {
+    const listeners = {};
+    if (AVOCADO_SERVER) {
+      listeners['died'] = () => {
+        const jsons = this.calculateLoot();
+        const position = this.entity.position;
+        for (let i = 0; i < jsons.length; i++) {
+          const offset = Vector.sub(
+            [
+              Math.floor(Math.random() * 16),
+              Math.floor(Math.random() * 16)
+            ],
+            [8, 8]
+          );
+          this.entity.spawnRawAt(
+            Vector.add(position, offset),
+            jsons[i]
+          );
+        }
+      };
+    }
+    return listeners;
+  }
+
+}

common/traits/receptacle.trait.js

@@ -7,6 +7,9 @@ import {
 import {
   TraitUpdateReceptacleItemSwapPacket,
 } from '../packets/trait-update-receptacle-item-swap.packet';
+import {
+  TraitUpdateReceptacleItemFullPacket,
+} from '../packets/trait-update-receptacle-item-full.packet';
 
 const decorate = compose(
   StateProperty('slotCount', {
@@ -79,6 +82,14 @@ export class Receptacle extends decorate(Trait) {
         item.qty = packet.data.qty;
       }
     }
+    // Full item.
+    if (packet instanceof TraitUpdateReceptacleItemFullPacket) {
+      Entity.loadOrInstance(packet.data.json).then((item) => {
+        item.hydrate().then(() => {
+          this.entity.addItemToSlot(item, packet.data.slotIndex);
+        });
+      });
+    }
     // Slot swap.
     if (packet instanceof TraitUpdateReceptacleItemSwapPacket) {
       // NULL destination slot === remove.
@@ -105,7 +116,7 @@ export class Receptacle extends decorate(Trait) {
           this.packetUpdates.push(new TraitUpdateReceptacleItemQtyPacket({
             slotIndex,
             qty: item.qty,
-          }, this.entity));
+          }));
         }
         // Item was used up.
         else {
@@ -197,6 +208,10 @@ export class Receptacle extends decorate(Trait) {
       listeners.collisionStart = (other) => {
         if (other.is('item')) {
           this.entity.addItemToSlot(other);
+          const slotIndex = this.itemSlotIndex(other);
+          if (other.is('listed')) {
+            other.list.removeEntity(other);
+          }
         }
       };
     }
@@ -207,12 +222,20 @@ export class Receptacle extends decorate(Trait) {
     return {
 
       addItemToSlot: (item, slotIndex = AUTO_SLOT) => {
+        slotIndex = slotIndex >> 0;
         if (AUTO_SLOT === slotIndex) {
           return this.mergeItem(item);
         }
         else {
           this.addListenersForItem(item);
           this.slotItems[slotIndex] = item;
+          if (AVOCADO_SERVER) {
+            this.packetUpdates.push(new TraitUpdateReceptacleItemFullPacket({
+              slotIndex,
+              // CHEATING: assuming this entity is the informed
+              json: item.toNetwork(this.entity),
+            }));
+          }
         }
         this.entity.emit('inventoryChanged');
       },
@@ -228,7 +251,7 @@ export class Receptacle extends decorate(Trait) {
           this.packetUpdates.push(new TraitUpdateReceptacleItemSwapPacket({
             firstSlotIndex: slotIndex,
             secondSlotIndex: NULL_SLOT,
-          }, this.entity));
+          }));
         }
         this.entity.emit('inventoryChanged');
         return item;

server/create-fixtures.js

@@ -40,6 +40,8 @@ import {wateringCanJSON} from './fixtures/watering-can.entity';
 writeFixture('watering-can.entity.json', wateringCanJSON());
 import {tomatoSeedsJSON} from './fixtures/tomato-seeds.entity';
 writeFixture('tomato-seeds.entity.json', tomatoSeedsJSON());
+import {yarnBallJSON} from './fixtures/yarn-ball.entity';
+writeFixture('yarn-ball.entity.json', yarnBallJSON());
 // Write rooms.
 import {kittyFireJSON} from './fixtures/kitty-fire.room';
 writeFixture('kitty-fire.room.json', kittyFireJSON());

server/fixtures/kitty-fire.room.js

@@ -64,15 +64,15 @@ export function kittyFireJSON() {
   // for (let i = 0; i < 20; ++i) {
   //   addEntityWithRandomPosition('/rock.entity.json');
   // }
-  for (let i = 0; i < 30; ++i) {
-    addEntityWithRandomPosition('/flower-barrel.entity.json');
-  }
+  // for (let i = 0; i < 30; ++i) {
+  //   addEntityWithRandomPosition('/flower-barrel.entity.json');
+  // }
   for (let i = 0; i < 5; ++i) {
     addEntityWithRandomPosition('/mama-kitty-spawner.entity.json');
   }
-  for (let i = 0; i < 50; ++i) {
-    addEntityWithRandomPosition('/fire.entity.json');
-  }
+  // for (let i = 0; i < 50; ++i) {
+  //   addEntityWithRandomPosition('/fire.entity.json');
+  // }
   for (let i = 0; i < 5; ++i) {
     addEntityWithRandomPosition('/blue-fire.entity.json');
   }

server/fixtures/kitty.entity.js

@@ -111,6 +111,24 @@ export function kittyJSON() {
       },
       layered: {},
       listed: {},
+      lootable: {
+        params: {
+          table: [
+            {
+              perc: 20,
+              json: {
+                uri: '/rock.entity.json',
+              },
+            },
+            {
+              perc: 70,
+              json: {
+                uri: '/yarn-ball.entity.json',
+              },
+            },
+          ],
+        },
+      },
       mobile: {
         state: {
           speed: 40,
@@ -128,6 +146,7 @@ export function kittyJSON() {
           },
         },
       },
+      spawner: {},
       vulnerable: {},
     },
   };

server/fixtures/rock.entity.js

@@ -1,7 +1,5 @@
 import {buildInvoke, buildTraversal} from '@avocado/behavior';
 
-import {AFFINITY_NONE} from '../../common/combat/constants';
-
 // Rock.
 export function rockJSON() {
   const spawnProjectile = buildInvoke(

server/fixtures/yarn-ball.entity.js

@@ -0,0 +1,54 @@
+import {buildInvoke, buildTraversal} from '@avocado/behavior';
+
+// Yarn ball.
+export function yarnBallJSON() {
+  return {
+    traits: {
+      collider: {
+        params: {
+          isSensor: true,
+        },
+      },
+      existent: {
+        state: {
+          name: 'Yarn Ball',
+        },
+      },
+      item: {
+        params: {
+          slotImageUris: {
+            default: '/yarn-ball.png',
+          },
+        },
+      },
+      layered: {},
+      listed: {},
+      magnetic: {},
+      mobile: {},
+      physical: {},
+      pictured: {
+        params: {
+          images: {
+            initial: {
+              offset: [0, 0],
+              size: [8, 8], // Derive?
+              uri: '/yarn-ball.png',
+            },
+          }
+        },
+      },
+      positioned: {},
+      roomed: {},
+      shaped: {
+        params: {
+          shape: {
+            type: 'rectangle',
+            position: [0, 0],
+            size: [16, 16],
+          },
+        },
+      },
+      visible: {},
+    },
+  };
+}