rust/landgen/src/outline_template_based/template_based.rs
branchtransitional_engine
changeset 15921 5f00829c55ec
parent 15916 e82de0410da5
child 15922 da6b67f13c12
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rust/landgen/src/outline_template_based/template_based.rs	Mon Feb 13 11:00:12 2023 +0100
@@ -0,0 +1,69 @@
+use super::{
+    outline::OutlinePoints, outline_template::OutlineTemplate};
+use crate::{LandGenerationParameters,
+    LandGenerator,
+};
+use land2d::Land2D;
+
+pub struct TemplatedLandGenerator {
+    outline_template: OutlineTemplate,
+}
+
+impl TemplatedLandGenerator {
+    pub fn new(outline_template: OutlineTemplate) -> Self {
+        Self { outline_template }
+    }
+}
+
+impl LandGenerator for TemplatedLandGenerator {
+    fn generate_land<T: Copy + PartialEq + Default, I: Iterator<Item = u32>>(
+        &self,
+        parameters: &LandGenerationParameters<T>,
+        random_numbers: &mut I,
+    ) -> Land2D<T> {
+        let mut land = Land2D::new(&self.outline_template.size, parameters.basic);
+
+        let mut points = OutlinePoints::from_outline_template(
+            &self.outline_template,
+            land.play_box(),
+            land.size().size(),
+            random_numbers,
+        );
+
+        // mirror
+        if self.outline_template.can_mirror {
+            if let Some(b) = random_numbers.next() {
+                if b & 1 != 0 {
+                    points.mirror();
+                }
+            }
+        }
+
+        // flip
+        if self.outline_template.can_flip {
+            if let Some(b) = random_numbers.next() {
+                if b & 1 != 0 {
+                    points.flip();
+                }
+            }
+        }
+
+        if !parameters.skip_distort {
+            points.distort(parameters.distance_divisor, random_numbers);
+        }
+
+        if !parameters.skip_bezier {
+            points.bezierize(5);
+        }
+
+        points.draw(&mut land, parameters.zero);
+
+        for p in &points.fill_points {
+            land.fill(*p, parameters.zero, parameters.zero)
+        }
+
+        points.draw(&mut land, parameters.basic);
+
+        land
+    }
+}