From dd5285875e67f110871e290ca03edb91b6b70ef7 Mon Sep 17 00:00:00 2001
From: Mike <mike@prime31.com>
Date: Fri, 12 Jun 2020 23:41:49 -0700
Subject: [PATCH] clear clears

---
 zig-ecs/src/ecs/sparse_set.zig | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/zig-ecs/src/ecs/sparse_set.zig b/zig-ecs/src/ecs/sparse_set.zig
index e5cfc9a..d0660b4 100644
--- a/zig-ecs/src/ecs/sparse_set.zig
+++ b/zig-ecs/src/ecs/sparse_set.zig
@@ -224,6 +224,14 @@ pub fn SparseSet(comptime SparseT: type) type {
         }
 
         pub fn clear(self: *Self) void {
+            self.sparse.expandToCapacity();
+            for (self.sparse.items) |array, i| {
+                if (array) |arr| {
+                    self.sparse.allocator.free(arr);
+                    self.sparse.items[i] = null;
+                }
+            }
+
             self.sparse.items.len = 0;
             self.dense.items.len = 0;
         }