From 00f54a2f5f3b8570ec6bb53050f07058e751fda8 Mon Sep 17 00:00:00 2001
From: griffi-gh <prasol258@gmail.com>
Date: Sun, 5 Feb 2023 00:42:37 +0100
Subject: [PATCH] wip block queue

---
 kubi/src/world.rs       |  1 +
 kubi/src/world/queue.rs | 45 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 kubi/src/world/queue.rs

diff --git a/kubi/src/world.rs b/kubi/src/world.rs
index 518fee7..355d33b 100644
--- a/kubi/src/world.rs
+++ b/kubi/src/world.rs
@@ -13,6 +13,7 @@ pub mod loading;
 pub mod mesh;
 pub mod neighbors;
 pub mod raycast;
+pub mod queue;
 
 use chunk::{Chunk, ChunkMesh};
 use tasks::ChunkTaskManager;
diff --git a/kubi/src/world/queue.rs b/kubi/src/world/queue.rs
new file mode 100644
index 0000000..31c9f79
--- /dev/null
+++ b/kubi/src/world/queue.rs
@@ -0,0 +1,45 @@
+use std::collections::VecDeque;
+use glam::IVec3;
+use kubi_shared::blocks::Block;
+use shipyard::{UniqueViewMut, Unique};
+
+use super::ChunkStorage;
+
+#[derive(Clone, Copy, Debug)]
+pub struct BlockUpdateEvent {
+  pub position: IVec3,
+  pub value: Block
+}
+
+#[derive(Unique, Default, Clone)]
+pub struct BlockUpdateQueue {
+  queue: VecDeque<BlockUpdateEvent>
+}
+impl BlockUpdateQueue {
+  pub fn new() -> Self {
+    Self::default()
+  }
+  pub fn push(&mut self, event: BlockUpdateEvent) {
+    self.queue.push_back(event)
+  }
+  pub fn pop(&mut self) -> Option<BlockUpdateEvent> {
+    self.queue.pop_front()
+  }
+  pub fn clear(&mut self) {
+    self.queue.clear();
+  }
+}
+
+pub fn apply_events(
+  mut queue: UniqueViewMut<BlockUpdateQueue>,
+  mut world: UniqueViewMut<ChunkStorage>
+) {
+  while let Some(event) = queue.pop() {
+    if let Some(block) = world.get_block_mut(event.position) {
+      let (chunk_pos, _) = ChunkStorage::to_chunk_coords(event.position);
+      let chunk = world.chunks.get_mut(&chunk_pos).expect("This error should never happen, if it does then something is super fucked up and the whole project needs to be burnt down.");
+      chunk.dirty = true;
+    }
+    
+  }
+}