From 4faf685029b248a80b5cd42182303e759b2f6c69 Mon Sep 17 00:00:00 2001
From: cha0s <git@cha0s.io>
Date: Sun, 9 May 2021 21:15:56 -0500
Subject: [PATCH] refactor: farming

---
 packages/farm/src/index.js                    |  5 +-
 .../farm/src/resources/decorators/room.js     | 66 +++++++++++++++++++
 packages/farm/src/traits/seeds.js             | 24 -------
 packages/farm/src/traits/tool.js              |  1 +
 4 files changed, 71 insertions(+), 25 deletions(-)
 create mode 100644 packages/farm/src/resources/decorators/room.js
 delete mode 100644 packages/farm/src/traits/seeds.js

diff --git a/packages/farm/src/index.js b/packages/farm/src/index.js
index be0f06b..33d9d01 100644
--- a/packages/farm/src/index.js
+++ b/packages/farm/src/index.js
@@ -1,7 +1,10 @@
-import {gatherWithLatus} from '@latus/core';
+import {decorateWithLatus, gatherWithLatus} from '@latus/core';
 
 export default {
   hooks: {
+    '@avocado/resource/resources.decorate': decorateWithLatus(
+      require.context('./resources/decorators', false, /\.js$/),
+    ),
     '@avocado/traits/traits': gatherWithLatus(
       require.context('./traits', false, /\.js$/),
     ),
diff --git a/packages/farm/src/resources/decorators/room.js b/packages/farm/src/resources/decorators/room.js
new file mode 100644
index 0000000..528fc21
--- /dev/null
+++ b/packages/farm/src/resources/decorators/room.js
@@ -0,0 +1,66 @@
+import {Rectangle, Vector} from '@avocado/math';
+
+const DIRT = 6;
+const TILLED = 7;
+
+export default (Room) => class FarmableRoom extends Room {
+
+  #water = {};
+
+  adjustWaterAt(target, increase) {
+    const [tiles] = this.tiles;
+    if (
+      'client' === process.env.SIDE
+      || TILLED !== tiles.tileAt(target)
+    ) {
+      return;
+    }
+    const hash = Vector.packToUint32(target);
+    if (!(hash in this.#water)) {
+      this.#water[hash] = 0;
+    }
+    this.#water[hash] += increase;
+    if (this.#water[hash] < 0) {
+      // Drought
+      this.#water[hash] = Math.max(this.#water[hash], -128);
+    }
+    else if (this.#water[hash] > 0) {
+      // Flood
+      this.#water[hash] = Math.min(this.#water[hash], 127);
+    }
+  }
+
+  isPlantAt(target) {
+    const entities = this.entityList.visibleEntities(Rectangle.centerOn(target, [1, 1]));
+    for (let i = 0; i < entities.length; ++i) {
+      const entity = entities[i];
+      if (Vector.equals(entity.position, target) && entity.is('Plant')) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  mayPrepareSoilAt(target) {
+    const [tiles] = this.tiles;
+    return DIRT === tiles.tileAt(target);
+    // return -1 !== GRASS.indexOf(tiles.tileAt(target));
+  }
+
+  maySowAt(target) {
+    const [tiles] = this.tiles;
+    return (
+      'client' !== process.env.SIDE
+      && TILLED === tiles.tileAt(target)
+      && !this.isPlantAt(target)
+    );
+  }
+
+  prepareSoilAt(target) {
+    if ('client' !== process.env.SIDE) {
+      const [tiles] = this.tiles;
+      tiles.setTileAt(target, TILLED);
+    }
+  }
+
+};
diff --git a/packages/farm/src/traits/seeds.js b/packages/farm/src/traits/seeds.js
deleted file mode 100644
index 2e5a2c6..0000000
--- a/packages/farm/src/traits/seeds.js
+++ /dev/null
@@ -1,24 +0,0 @@
-import {Rectangle, Vector} from '@avocado/math';
-import {Trait} from '@avocado/traits';
-
-export default () => class Seeds extends Trait {
-
-  // eslint-disable-next-line class-methods-use-this
-  methods() {
-    return {
-
-      isPlantAt: (position, list) => {
-        const entities = list.visibleEntities(Rectangle.centerOn(position, [1, 1]));
-        for (let i = 0; i < entities.length; ++i) {
-          const entity = entities[i];
-          if (Vector.equals(entity.position, position) && entity.is('Plant')) {
-            return true;
-          }
-        }
-        return false;
-      },
-
-    };
-  }
-
-};
diff --git a/packages/farm/src/traits/tool.js b/packages/farm/src/traits/tool.js
index 9e0feff..43558f0 100644
--- a/packages/farm/src/traits/tool.js
+++ b/packages/farm/src/traits/tool.js
@@ -97,6 +97,7 @@ export default (latus) => class Tool extends Trait {
       ),
       entity: this.entity,
       target,
+      room,
       tiles,
       wielder,
     };