block breaking!

src/main.rs

@@ -34,7 +34,7 @@ use rendering::{
 use world::{
   init_game_world,
   loading::update_loaded_world_around_player, 
-  raycast::update_raycasts
+  raycast::{update_raycasts, break_block_test_only}
 };
 use player::spawn_player;
 use prefabs::load_prefabs;
@@ -65,6 +65,7 @@ fn update() -> Workload {
     update_controllers,
     update_loaded_world_around_player,
     update_raycasts,
+    break_block_test_only,
     compute_cameras
   ).into_workload()
 }

src/rendering/selection_box.rs

@@ -7,7 +7,9 @@ use glium::{
   VertexBuffer, uniform, 
   DrawParameters, 
   BackfaceCullingMode, 
-  PolygonMode, Blend, BlendingFunction, LinearBlendingFactor, Depth, DepthTest
+  Blend, BlendingFunction, 
+  LinearBlendingFactor, 
+  Depth, DepthTest,
 };
 use crate::{
   world::raycast::LookingAtBlock, 

src/rendering/world.rs

@@ -1,4 +1,4 @@
-use glam::{vec3a, Vec3A, Vec4Swizzles, Vec3};
+use glam::Vec3;
 use shipyard::{NonSendSync, UniqueView, UniqueViewMut, View, IntoIter};
 use glium::{
   implement_vertex, uniform,

src/world.rs

@@ -51,6 +51,16 @@ impl ChunkStorage {
       .get(block.z as usize)?;
     Some(*block)
   }
+  pub fn get_block_mut(&mut self, position: IVec3) -> Option<&mut Block> {
+    let (chunk, block) = Self::to_chunk_coords(position);
+    let block = self.chunks
+      .get_mut(&chunk)?
+      .block_data.as_mut()?
+      .blocks.get_mut(block.x as usize)?
+      .get_mut(block.y as usize)?
+      .get_mut(block.z as usize)?;
+    Some(block)
+  }
   pub fn new() -> Self {
     Self::default()
   }

src/world/chunk.rs

@@ -18,7 +18,6 @@ impl ChunkData {
 }
 
 pub struct ChunkMesh {
-  pub is_dirty: bool,
   pub vertex_buffer: VertexBuffer<ChunkVertex>,
   pub index_buffer: IndexBuffer<u32>,
 }
@@ -50,6 +49,7 @@ pub struct Chunk {
   pub mesh_index: Option<usize>,
   pub current_state: CurrentChunkState,
   pub desired_state: DesiredChunkState,
+  pub dirty: bool,
 }
 impl Chunk {
   pub fn new(position: IVec3) -> Self {
@@ -59,6 +59,7 @@ impl Chunk {
       mesh_index: None,
       current_state: Default::default(),
       desired_state: Default::default(),
+      dirty: false,
     }
   }
 }

src/world/loading.rs

@@ -95,7 +95,7 @@ fn unload_downgrade_chunks(
       false
     } else {
       match chunk.desired_state {
-        DesiredChunkState::Loaded if matches!(chunk.current_state, CurrentChunkState::Rendered | CurrentChunkState::CalculatingMesh) => {
+        DesiredChunkState::Loaded if matches!(chunk.current_state, CurrentChunkState::Rendered | CurrentChunkState::CalculatingMesh | CurrentChunkState::RecalculatingMesh) => {
           if let Some(mesh_index) = chunk.mesh_index {
             vm_meshes.remove(mesh_index).unwrap();
           }
@@ -133,7 +133,7 @@ fn start_required_tasks(
         // ===========
         //log::trace!("Started loading chunk {position}");
       },
-      DesiredChunkState::Rendered if chunk.current_state == CurrentChunkState::Loaded => {
+      DesiredChunkState::Rendered if (chunk.current_state == CurrentChunkState::Loaded || chunk.dirty) => {
         //get needed data
         let Some(neighbors) = world.neighbors_all(position) else {
           continue
@@ -145,7 +145,12 @@ fn start_required_tasks(
         task_manager.spawn_task(ChunkTask::GenerateMesh { data, position });
         //Update chunk state
         let chunk = world.chunks.get_mut(&position).unwrap();
+        if chunk.dirty {
+          chunk.current_state = CurrentChunkState::RecalculatingMesh;
+          chunk.dirty = false;
+        } else {
           chunk.current_state = CurrentChunkState::CalculatingMesh;
+        }
         // ===========
         //log::trace!("Started generating mesh for chunk {position}");
       }
@@ -201,7 +206,6 @@ fn process_completed_tasks(
           let vertex_buffer = VertexBuffer::new(&renderer.display, &vertices).unwrap();
           let index_buffer = IndexBuffer::new(&renderer.display, PrimitiveType::TrianglesList, &indexes).unwrap();
           let mesh_index = meshes.insert(ChunkMesh {
-            is_dirty: false,
             vertex_buffer,
             index_buffer,
           });

src/world/raycast.rs

@@ -1,6 +1,6 @@
 use glam::{Vec3, IVec3};
-use shipyard::{View, Component, ViewMut, IntoIter, UniqueView};
+use shipyard::{View, Component, ViewMut, IntoIter, UniqueView, UniqueViewMut};
-use crate::{player::MainPlayer, transform::Transform};
+use crate::{player::MainPlayer, transform::Transform, input::Inputs};
 
 use super::{ChunkStorage, block::Block};
 
@@ -46,9 +46,31 @@ pub fn update_raycasts(
   mut raycast: ViewMut<LookingAtBlock>,
   world: UniqueView<ChunkStorage>,
 ) {
-  for (transform, report) in (transform.inserted_or_modified(), &mut raycast).iter() {
+  //idk if this check is even needed
+  if !(world.is_inserted_or_modified() || (transform.inserted_or_modified(), &raycast).iter().next().is_some()) {
+    return
+  }
+  for (transform, report) in (&transform, &mut raycast).iter() {
     let (_, rotation, position) = transform.0.to_scale_rotation_translation();
     let direction = rotation * Vec3::NEG_Z;
     *report = LookingAtBlock(world.raycast(position, direction, Some(30.)));
   }
 }
+
+pub fn break_block_test_only(
+  raycast: View<LookingAtBlock>,
+  input: UniqueView<Inputs>,
+  mut world: UniqueViewMut<ChunkStorage>
+) {
+  if input.action_a {
+    //get raycast info
+    let Some(ray) = raycast.iter().next().unwrap().0 else { return };
+    //update block
+    let Some(block) = world.get_block_mut(ray.block_position) else { return };
+    *block = Block::Air;
+    //mark chunk as dirty
+    let (chunk_pos, _) = ChunkStorage::to_chunk_coords(ray.block_position);
+    let chunk = world.chunks.get_mut(&chunk_pos).unwrap();
+    chunk.dirty = true;
+  }
+}