fire, optimize viewport rendering

1 files changed, 8 insertions, 0 deletions

diff --git a/src/camera.rs b/src/camera.rs
index 0b69833..d14adbd 100644
--- a/src/camera.rs
+++ b/src/camera.rs
@@ -20,6 +20,14 @@ impl Camera {
         (1.0 / half_w, -1.0 / half_h)
     }
 
+    // xl, xu, yl, yu
+    pub fn viewport_bounds_world(&self) -> (f32, f32, f32, f32) {
+        let (xl, yl) = self.screen_position_to_world(0.0, 0.0);
+        let (xu, yu) =
+            self.screen_position_to_world(self.screen_size.0 as f32, self.screen_size.1 as f32);
+        (xl, xu, yl, yu)
+    }
+
     pub fn handle_camera_input(&mut self, input: &Input, delta_time: f32) {
         // wasd movement
         let x: f32 = if input.is_left_pressed {