Added functions required for working with a camera and a cursorHEADmaster

1 files changed, 15 insertions, 2 deletions

diff --git a/gate/src/renderer/geom.rs b/gate/src/renderer/geom.rs
index 0f0e478..619555f 100644
--- a/gate/src/renderer/geom.rs
+++ b/gate/src/renderer/geom.rs
@@ -215,13 +215,26 @@ impl Affine {
         }
     }
 
-    pub(crate) fn apply(&self, input: Vec2) -> Vec2 { self.mat * input + self.offset }
+    pub fn invert_translate(&self) -> Affine {
+        Affine {
+            mat: self.mat,
+            offset: -1. * self.offset
+        }
+    }
+
+    pub fn apply(&self, input: Vec2) -> Vec2 { self.mat * input + self.offset }
 
-    pub(crate) fn apply_f32(&self, input: (f32, f32)) -> (f32, f32) {
+    pub fn apply_f32(&self, input: (f32, f32)) -> (f32, f32) {
         let input = Vec2::new(input.0 as f64, input.1 as f64);
         let result = self.apply(input);
         (result.x as f32, result.y as f32)
     }
 
+    pub fn apply_f64(&self, input: (f64, f64)) -> (f64, f64) {
+        let input = Vec2::new(input.0 as f64, input.1 as f64);
+        let result = self.apply(input);
+        (result.x, result.y)
+    }
+
     pub(crate) fn mat(&self) -> &Mat2 { &self.mat }
 }