Fixed a bad reference

libraries/pool/pool.odin

@@ -1,14 +1,13 @@
 package adb_pool
 
 Pool :: struct($T: typeid) {
-	pool: []T,
-	usage, capacity: int,
+	pool:  []T,
+	usage: int,
 }
 
 init :: proc(pool: ^Pool($T), capacity: int, allocator := context.allocator) {
 	pool.pool = make([]T, capacity, allocator)
 	pool.usage = 0
-	pool.capacity = capacity
 }
 
 elems_available :: proc(pool: ^Pool($T), capacity: int) -> bool {
@@ -16,7 +15,9 @@ elems_available :: proc(pool: ^Pool($T), capacity: int) -> bool {
 }
 
 get :: proc(pool: ^Pool($T), count: int) -> []T {
-	elements := pool.pool[pool.usage:pool.usage + count]
+	range_to := pool.usage + count
+	assert(range_to <= len(pool.pool), "pool.get count reaches outside preallocated size")
+	elements := pool.pool[pool.usage:]
 	pool.usage += count
 	return elements
 }