From aae2ecef857d834e3883dfe4ecc8c5d639b5ab84 Mon Sep 17 00:00:00 2001
From: Niklas Korz <niklas@niklaskorz.de>
Date: Mon, 31 Mar 2025 18:47:39 +0200
Subject: [PATCH] Variable resolution

---
 src/main.rs | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 8cfc354..912a7a9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -30,10 +30,18 @@ fn draw_map(mut query_scene: Single<(&mut Transform, &mut VelloScene)>) {
     scene.reset();
     transform.scale = Vec3::ONE * 30.0;
 
+    let grid_size_x = 40;
+    let grid_max_x = grid_size_x / 2;
+    let grid_min_x = -grid_max_x;
+
+    let grid_size_y = 20;
+    let grid_max_y = grid_size_y / 2;
+    let grid_min_y = -grid_max_y;
+
     let mut rng = rand::rng();
     let mut points = Vec::new();
-    for x in -20..=20 {
-        for y in -10..=10 {
+    for x in grid_min_x..=grid_max_x {
+        for y in grid_min_y..=grid_max_y {
             points.push((
                 (x as f64) + rng.random_range(-JITTER..=JITTER),
                 (y as f64) + rng.random_range(-JITTER..=JITTER),
@@ -41,8 +49,8 @@ fn draw_map(mut query_scene: Single<(&mut Transform, &mut VelloScene)>) {
         }
     }
     let diagram = VoronoiDiagram::<voronator::delaunator::Point>::from_tuple(
-        &(-20.0, -10.0),
-        &(20.0, 10.0),
+        &(grid_min_x as f64, grid_min_y as f64),
+        &(grid_max_x as f64, grid_max_y as f64),
         &points,
     )
     .unwrap();
@@ -65,8 +73,8 @@ fn draw_map(mut query_scene: Single<(&mut Transform, &mut VelloScene)>) {
             }
         }
 
-        let nx = (center.x + 20.0) / 40.0 - 0.5;
-        let ny = (center.y + 10.0) / 20.0 - 0.5;
+        let nx = (center.x + grid_max_x as f64) / (grid_size_x as f64) - 0.5;
+        let ny = (center.y + grid_max_y as f64) / (grid_size_y as f64) - 0.5;
 
         let elevation = (1.0 + noise.get([nx / 0.5, ny / 0.5])) / 2.0;
         let d = 2.0 * nx.abs().max(ny.abs());