assuming that i fixed the camera rotation

geng-engine · Jun 10, 2024 · 6caf346 · 6caf346
1 parent 71cbb5e
commit 6caf346
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/crates/geng-camera/src/camera_2d.rs b/crates/geng-camera/src/camera_2d.rs
@@ -10,7 +10,7 @@ pub struct Camera2d {
 
 impl AbstractCamera2d for Camera2d {
     fn view_matrix(&self) -> mat3<f32> {
-        mat3::rotate(self.rotation) * mat3::translate(-self.center)
+        mat3::rotate(-self.rotation) * mat3::translate(-self.center)
     }
     fn projection_matrix(&self, framebuffer_size: vec2<f32>) -> mat3<f32> {
         mat3::scale(vec2(2.0 * framebuffer_size.y / framebuffer_size.x, 2.0) / self.fov)

diff --git a/examples/04_camera_controls.rs b/examples/04_camera_controls.rs
@@ -36,10 +36,10 @@ impl geng::State for State {
 
         // Rotating camera
         if self.geng.window().is_key_pressed(geng::Key::Q) {
-            self.camera.rotation += Angle::from_radians(delta_time);
+            self.camera.rotation -= Angle::from_radians(delta_time);
         }
         if self.geng.window().is_key_pressed(geng::Key::E) {
-            self.camera.rotation -= Angle::from_radians(delta_time);
+            self.camera.rotation += Angle::from_radians(delta_time);
         }
     }
     fn draw(&mut self, framebuffer: &mut ugli::Framebuffer) {
@@ -130,7 +130,7 @@ impl geng::State for State {
                     self.prev_touch_distance = now_dist;
                     let now_angle = diff.map(|x| x as f32).arg();
                     let angle_diff = (now_angle - self.prev_touch_angle).normalized_pi();
-                    self.camera.rotation -= angle_diff;
+                    self.camera.rotation += angle_diff;
                     self.prev_touch_angle = now_angle;
                     if let Some(start) = self.drag_start {
                         let current_pos = self.camera.screen_to_world(