From 00fd077642627b7c4618d23031eb67d2ed008cc2 Mon Sep 17 00:00:00 2001
From: Piotrek <piotrek54pl@gmail.com>
Date: Sat, 24 Apr 2021 17:17:09 +0200
Subject: [PATCH] grass? testing

---
 src/app/mod.rs                       | 20 +++++++++++++++++---
 src/renderer/buffers/brick_buffer.rs |  4 ++++
 src/renderer/mod.rs                  |  8 ++++----
 3 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/src/app/mod.rs b/src/app/mod.rs
index c284826..8d52d52 100644
--- a/src/app/mod.rs
+++ b/src/app/mod.rs
@@ -3,6 +3,7 @@ use winit::{
     window::Window
 };
 use std::sync::Arc;
+use rand::Rng;
 
 mod camera_controller; use camera_controller::CameraController;
 mod world_gen; use world_gen::WorldGen;
@@ -37,9 +38,11 @@ impl App {
         // println!("Generated in {}ms", start.elapsed().as_millis());
 
 
+        let mut rng = rand::thread_rng();
+
         let start = std::time::Instant::now();
-        for bx in 0..4 {
-            for bz in 0..4 {
+        for bx in 0..32 {
+            for bz in 0..32 {
 
                 let brick_id = renderer.brick_get_id(bx, 0, bz);
                 renderer.brick_mark_changed(brick_id);
@@ -53,7 +56,18 @@ impl App {
                         renderer.brick_set_voxel(brick_id, x, 31, z, 2);
                     }
                 }
-                
+
+                let brick_id = renderer.brick_get_id(bx, 1, bz);
+                renderer.brick_mark_changed(brick_id);
+                for x in 0..32 {
+                    for z in 0..32 {
+                        // Dirt
+                        let h = (rng.gen::<f32>() * 16.0) as usize;
+                        for y in 0..h {
+                            renderer.brick_set_voxel(brick_id, x, y, z, 2);
+                        }
+                    }
+                }
             }
         }
         println!("Generated in {}ms", start.elapsed().as_millis());
diff --git a/src/renderer/buffers/brick_buffer.rs b/src/renderer/buffers/brick_buffer.rs
index bdba9ea..4ee2955 100644
--- a/src/renderer/buffers/brick_buffer.rs
+++ b/src/renderer/buffers/brick_buffer.rs
@@ -101,6 +101,10 @@ impl BrickBuffer {
         );
     }
 
+    /*
+    *   Get id of next free brick
+    *   Later: reusing old bricks
+    */
     pub fn next_brick(&mut self) -> usize {
         if self.free_brick >= self.bricks.len() {
             panic!("No more free bricks! we should consider reusing bricks...");
diff --git a/src/renderer/mod.rs b/src/renderer/mod.rs
index fb26e3b..6ba9f4b 100644
--- a/src/renderer/mod.rs
+++ b/src/renderer/mod.rs
@@ -166,6 +166,8 @@ impl Renderer {
             for node in &self.changed_bricks {
                 self.brick_buffer.write(&self.queue, *node);
             }
+
+            println!("Changed: {}", self.changed_bricks.len());
             self.changed_bricks.clear();
         }
 
@@ -213,8 +215,7 @@ impl Renderer {
     *   Create or update brick at given location
     */
     #[allow(dead_code)]
-    pub fn set_voxel(&mut self, x: usize, y: usize, z:usize, value: u8)
-    {
+    pub fn set_voxel(&mut self, x: usize, y: usize, z:usize, value: u8) {
         let brick_id = self.brick_get_id(x/32, y/32, z/32 );
         self.brick_set_voxel(brick_id, x%32, y%32, z%32, value);
         self.brick_mark_changed(brick_id);
@@ -223,8 +224,7 @@ impl Renderer {
      /*
     *   Create or update brick at given location
     */
-    pub fn brick_set_voxel(&mut self, brick_id:usize, x: usize, y: usize, z:usize, value: u8)
-    {
+    pub fn brick_set_voxel(&mut self, brick_id:usize, x: usize, y: usize, z:usize, value: u8) {
         let voxel_id = x + buffers::BRICK_SIZE * (y + buffers::BRICK_SIZE * z);
         let brick_offset = brick_id * buffers::BRICK_LEN;
         self.brick_buffer.bricks[brick_offset + voxel_id] = value;