WIP towns

src/main.rs

@@ -1,4 +1,5 @@
 mod world;
+mod state;
 
 use noise::{Perlin, ScalePoint, Add, NoiseFn, Multiply, ScaleBias};
 use noise::utils::{NoiseMapBuilder, PlaneMapBuilder};
@@ -37,6 +38,8 @@ impl NoiseFn<f64, 2> for BorderNoise {
 
 fn main() {
 
+    let N_TOWNS = 10;
+
     let mut rng = rand::thread_rng();
 
     let map_size = 256;
@@ -80,11 +83,31 @@ fn main() {
         for y in 0..map_size {
             let h = plane.get_value(x, y);
             let t = world::Terrain::from_height(h);
-            world.map[x][y] = t;
+            world.map[x][y] = world::WorldCell::new(t);
             img.put_pixel(x as u32, y as u32, Rgb(t.to_color()));
         }
     }
-    img.save("world.png").unwrap();
+
+    let mut placed = 0;
+    while placed < N_TOWNS {
+        let x = rng.gen_range(0..map_size);
+        let y = rng.gen_range(0..map_size);
+        if 
+            world.map[x][y].terrain == world::Terrain::Flats ||
+            world.map[x][y].terrain == world::Terrain::Hills
+        {
+            world.add_structure(x, y, world::Structure::Town(world::Town::new()));
+            placed += 1;
+            img.put_pixel(x as u32, y as u32, Rgb([255, 0, 0]));
+        }
+    }
+
+    let scaled = image::imageops::resize(
+        &img,
+        map_size as u32 * 4, map_size as u32 * 4,
+        image::imageops::FilterType::Nearest);
+
+    scaled.save("world.png").unwrap();
 
 
 

src/state.rs

@@ -0,0 +1,4 @@
+use crate::world::World;
+pub struct GameState {
+    pub world: World,
+}

src/world.rs

@@ -1,6 +1,6 @@
-
-#[derive(Debug, Clone, Copy)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub enum Terrain {
+    Void,
     DeepOcean,
     Ocean,
     Beach,
@@ -10,18 +10,41 @@ pub enum Terrain {
     HighMountains,
 }
 
+pub struct Town {
+    pub name: String,
+    pub population: u32,
+}
+
+pub enum Structure {
+    Town(Town),
+}
+
+pub struct WorldCell {
+    pub terrain: Terrain,
+    pub structure: Option<Structure>,
+}
+
 pub struct World {
-    pub map: Vec<Vec<Terrain>>,
+    pub map: Vec<Vec<WorldCell>>,
     pub size: usize,
 }
 
+impl WorldCell {
+    pub fn new(terrain: Terrain) -> WorldCell {
+        WorldCell {
+            terrain: terrain,
+            structure: None,
+        }
+    }
+}
+
 impl World {
     pub fn new(size: usize) -> World {
         let mut map = Vec::new();
         for _ in 0..size {
             let mut row = Vec::new();
             for _ in 0..size {
-                row.push(Terrain::DeepOcean);
+                row.push(WorldCell::new(Terrain::Void));
             }
             map.push(row);
         }
@@ -30,6 +53,10 @@ impl World {
             size: size,
         }
     }
+
+    pub fn add_structure(&mut self, x: usize, y: usize, structure: Structure) {
+        self.map[x][y].structure = Some(structure);
+    }
 }
 
 impl Terrain {
@@ -53,6 +80,7 @@ impl Terrain {
 
     pub fn to_color(self) -> [u8; 3] {
         match self {
+            Terrain::Void => [0, 0, 0],
             Terrain::DeepOcean => [20, 60, 255],
             Terrain::Ocean => [20, 120, 255],
             Terrain::Beach => [255, 255, 100],
@@ -63,3 +91,12 @@ impl Terrain {
         }
     }
 }
+
+impl Town {
+    pub fn new() -> Town {
+        Town {
+            name: "Town".to_string(),
+            population: 100,
+        }
+    }
+}