ts

1 files changed, 41 insertions, 0 deletions

diff --git a/client/src/logic/items.ts b/client/src/logic/items.ts
new file mode 100644
index 0000000..5f8a38e
--- /dev/null
+++ b/client/src/logic/items.ts
@@ -0,0 +1,41 @@
+import { getMap, getItemKey } from "../map.js"
+import { GameState, Map, Player } from "../types.js"
+
+const ceilHalf = (n: number): number => {
+    return Math.ceil(n*2)/2
+}
+
+const floorHalf = (n: number): number => {
+    return Math.floor(n*2)/2
+}
+
+const eatItems = (data: GameState, map: Map, player: Player) => {
+
+    let pos = player.pos
+    
+    for (let x = ceilHalf(pos.x-.5); x <= floorHalf(pos.x+.5); x += .5) {
+        for (let y = ceilHalf(pos.y-.5); y <= floorHalf(pos.y+.5); y += .5) {
+            let item_key = getItemKey(x, y, map.width)
+            delete data.items[item_key]
+        }
+    }
+}
+
+export const updateItems = (data: GameState) => {
+
+    let map = getMap(data.mapId)
+    if (!map) return
+
+	for(const id in data.input) {
+
+        const player = data.players[id]
+		
+        if(!player) {
+			continue;
+		}
+
+        eatItems(data, map, player)
+
+    }
+
+}