diff options
Diffstat (limited to 'src/camera.rs')
| -rw-r--r-- | src/camera.rs | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/src/camera.rs b/src/camera.rs index 2a2a2e6..22f9837 100644 --- a/src/camera.rs +++ b/src/camera.rs @@ -44,12 +44,18 @@ impl Camera { self.zoom } + /// Get the camera's current rotation, in radians + #[must_use] + pub const fn rotation(&self) -> f32 { + self.rotation + } + /// Set the position of the camera pub fn set_position(&mut self, x: f32, y: f32) { debug_assert!( - x <= 1000.0 && y <= 1000.0, - "The position of the camera is ({}, {}), which is too large. \ - Please keep both the x and y positions below 1000 units. \ + (-1000.0..1000.0).contains(&x) && (-1000.0..1000.0).contains(&y), + "The position of the camera is (x: {}, y: {}). \ + Please keep both the x and y positions above -1000 and below 1000 units. \ Otherwise, everything will look crazy. \ For an explanation, see https://www.youtube.com/watch?v=Q2OGwnRik24", x, @@ -61,9 +67,22 @@ impl Camera { /// Set the zoom of the camera pub fn set_zoom(&mut self, zoom: f32) { + debug_assert!( + (-1000.0..1000.0).contains(&zoom), + "The zoom of the camera is {}. \ + Please keep above -1000, and below 1000, or else smooth zoom may be difficult. \ + For an explanation, see https://www.youtube.com/watch?v=Q2OGwnRik24", + zoom + ); + self.zoom = zoom; } + /// Set the camera rotation, in radians + pub fn set_rotation(&mut self, rotation: f32) { + self.rotation = rotation % std::f32::consts::TAU; + } + /// Set the aspect ratio of the camera pub(crate) fn set_size(&mut self, width: u32, height: u32) { self.inverse_aspect_ratio = inverse_aspect_ratio(width, height); |