1 files changed, 77 insertions, 0 deletions
diff --git a/src/map/polygon_room.rs b/src/map/polygon_room.rs
new file mode 100644
index 0000000..a209a7c
--- /dev/null
+++ b/src/map/polygon_room.rs
@@ -0,0 +1,77 @@
+use super::Mappable;
+use crate::colours::DEFAULT_COLOURS;
+use crate::math::{self, Polygon, Rect, Triangle, Vec2};
+use crate::scaleable::Scaleable;
+use crate::transform::Transform;
+use raylib::drawing::{RaylibDraw, RaylibDrawHandle};
+
+pub type PolygonRoomData = Polygon<f64>;
+
+pub struct PolygonRoom {
+    data: PolygonRoomData,
+    // The polygon shape, but in triangles, so the polygon does not have to be triangulated every frame.
+    triangulated: Vec<Triangle<f64>>,
+    selected: bool,
+}
+
+impl PolygonRoom {
+    pub fn from_data(data: PolygonRoomData) -> Self {
+        Self {
+            data: data.clone(),
+            triangulated: math::triangulate(data),
+            selected: false,
+        }
+    }
+
+    fn retriangulate(&mut self) {
+        self.triangulated = math::triangulate(self.data.clone());
+    }
+}
+
+impl Mappable for PolygonRoom {
+    fn draw(&self, rld: &mut RaylibDrawHandle, transform: &Transform) {
+        for triangle in &self.triangulated {
+            rld.draw_triangle(
+                transform.point_m_to_px(&triangle.corners()[0]),
+                transform.point_m_to_px(&triangle.corners()[1]),
+                transform.point_m_to_px(&triangle.corners()[2]),
+                if self.selected() {
+                    DEFAULT_COLOURS.room_selected
+                } else {
+                    DEFAULT_COLOURS.room_normal
+                },
+            )
+        }
+    }
+
+    fn set_selected(&mut self, selected: bool) {
+        self.selected = selected;
+    }
+
+    fn selected(&self) -> bool {
+        self.selected
+    }
+
+    fn bounding_rect(&self) -> Rect<f64> {
+        Rect::bounding_rect_n(&self.data.corners())
+    }
+
+    fn as_scaleable(&self) -> Option<&dyn Scaleable> {
+        Some(self as &dyn Scaleable)
+    }
+}
+
+impl Scaleable for PolygonRoom {
+    fn scale(&mut self, by: &Vec2<f64>) {
+        if by.x < 0. || by.y < 0. {
+            panic!("Cannot set dimensions with negative size");
+        }
+
+        for corner in self.data.corners_mut() {
+            corner.x *= by.x;
+            corner.y *= by.y;
+        }
+
+        self.retriangulate();
+    }
+}