From aa02b5376d57ee1cf1561486f251c5dffb18827b Mon Sep 17 00:00:00 2001
From: Maximilian Ammann <max@maxammann.org>
Date: Sat, 2 Apr 2022 13:25:32 +0200
Subject: [PATCH] Add is_in_view and fix paddings

---
 src/coords.rs | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/coords.rs b/src/coords.rs
index e07b0134..dc229463 100644
--- a/src/coords.rs
+++ b/src/coords.rs
@@ -384,9 +384,17 @@ impl ViewRegion {
         }
     }
 
+    pub fn is_in_view(&self, &world_coords: &WorldTileCoords) -> bool {
+        world_coords.x <= self.max_tile.x + self.padding
+            && world_coords.y <= self.max_tile.y + self.padding
+            && world_coords.x >= self.min_tile.x - self.padding
+            && world_coords.y >= self.min_tile.y - self.padding
+            && world_coords.z == self.z
+    }
+
     pub fn iter(&self) -> impl Iterator<Item = WorldTileCoords> + '_ {
-        (self.min_tile.x..self.max_tile.x + self.padding).flat_map(move |x| {
-            (self.min_tile.y..self.max_tile.y + self.padding).map(move |y| {
+        (self.min_tile.x - self.padding..self.max_tile.x + 1 + self.padding).flat_map(move |x| {
+            (self.min_tile.y - self.padding..self.max_tile.y + 1 + self.padding).map(move |y| {
                 let tile_coord: WorldTileCoords = (x, y, self.z as u8).into();
                 tile_coord
             })