1 files changed, 33 insertions, 0 deletions
diff --git a/azalea-block/src/range.rs b/azalea-block/src/range.rs
new file mode 100644
index 00000000..6ccf4152
--- /dev/null
+++ b/azalea-block/src/range.rs
@@ -0,0 +1,33 @@
+use std::{collections::HashSet, ops::RangeInclusive};
+
+use crate::BlockState;
+
+#[derive(Debug, Clone)]
+pub struct BlockStates {
+    pub set: HashSet<BlockState>,
+}
+
+impl From<RangeInclusive<u32>> for BlockStates {
+    fn from(range: RangeInclusive<u32>) -> Self {
+        let mut set = HashSet::with_capacity((range.end() - range.start() + 1) as usize);
+        for id in range {
+            set.insert(BlockState { id });
+        }
+        Self { set }
+    }
+}
+
+impl IntoIterator for BlockStates {
+    type Item = BlockState;
+    type IntoIter = std::collections::hash_set::IntoIter<BlockState>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.set.into_iter()
+    }
+}
+
+impl BlockStates {
+    pub fn contains(&self, state: &BlockState) -> bool {
+        self.set.contains(state)
+    }
+}