diff --git a/Cargo.lock b/Cargo.lock
index a693f8e..9462a79 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -46,11 +46,17 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "heck"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
+
 [[package]]
 name = "indoc"
-version = "1.0.9"
+version = "2.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa799dd5ed20a7e349f3b4639aa80d74549c81716d9ec4f994c9b5815598306"
+checksum = "1e186cfbae8084e513daff4240b4797e342f988cecda4fb6c939150f96315fd8"
 
 [[package]]
 name = "libc"
@@ -70,9 +76,9 @@ dependencies = [
 
 [[package]]
 name = "memoffset"
-version = "0.8.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d61c719bcfbcf5d62b3a09efa6088de8c54bc0bfcd3ea7ae39fcc186108b8de1"
+checksum = "5a634b1c61a95585bd15607c6ab0c4e5b226e695ff2800ba0cdccddf208c406c"
 dependencies = [
  "autocfg",
 ]
@@ -106,6 +112,12 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "portable-atomic"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7170ef9988bc169ba16dd36a7fa041e5c4cbeb6a35b76d4c03daded371eae7c0"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.17"
@@ -123,15 +135,16 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.18.1"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06a3d8e8a46ab2738109347433cb7b96dffda2e4a218b03ef27090238886b147"
+checksum = "53bdbb96d49157e65d45cc287af5f32ffadd5f4761438b527b055fb0d4bb8233"
 dependencies = [
  "cfg-if",
  "indoc",
  "libc",
  "memoffset",
  "parking_lot",
+ "portable-atomic",
  "pyo3-build-config",
  "pyo3-ffi",
  "pyo3-macros",
@@ -140,9 +153,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.18.1"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75439f995d07ddfad42b192dfcf3bc66a7ecfd8b4a1f5f6f046aa5c2c5d7677d"
+checksum = "deaa5745de3f5231ce10517a1f5dd97d53e5a2fd77aa6b5842292085831d48d7"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -150,9 +163,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.18.1"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "839526a5c07a17ff44823679b68add4a58004de00512a95b6c1c98a6dcac0ee5"
+checksum = "62b42531d03e08d4ef1f6e85a2ed422eb678b8cd62b762e53891c05faf0d4afa"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -160,9 +173,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.18.1"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd44cf207476c6a9760c4653559be4f206efafb924d3e4cbf2721475fc0d6cc5"
+checksum = "7305c720fa01b8055ec95e484a6eca7a83c841267f0dd5280f0c8b8551d2c158"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -172,11 +185,13 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.18.1"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc1f43d8e30460f36350d18631ccf85ded64c059829208fe680904c65bcd0a4c"
+checksum = "7c7e9b68bb9c3149c5b0cade5d07f953d6d125eb4337723c4ccdb665f1f96185"
 dependencies = [
+ "heck",
  "proc-macro2",
+ "pyo3-build-config",
  "quote",
  "syn",
 ]
@@ -243,9 +258,9 @@ checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
 
 [[package]]
 name = "syn"
-version = "1.0.109"
+version = "2.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+checksum = "79d9531f94112cfc3e4c8f5f02cb2b58f72c97b7efd85f70203cc6d8efda5927"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -266,9 +281,9 @@ checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
 
 [[package]]
 name = "unindent"
-version = "0.1.11"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1766d682d402817b5ac4490b3c3002d91dfa0d22812f341609f97b08757359c"
+checksum = "c7de7d73e1754487cb58364ee906a499937a0dfabd86bcb980fa99ec8c8fa2ce"
 
 [[package]]
 name = "wasi"
diff --git a/Cargo.toml b/Cargo.toml
index e2ba62f..0d20614 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,5 +10,5 @@ crate-type = ["cdylib"]
 
 [dependencies]
 float_eq = "1"
-pyo3 = "0.18.1"
+pyo3 = "0.20.3"
 rand = "0.8.5"
diff --git a/pyproject.toml b/pyproject.toml
index 8b6a363..89b79fd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["maturin>=0.14,<0.15"]
+requires = ["maturin>=1.4.0,<1.5.0"]
 build-backend = "maturin"
 
 [project]
diff --git a/python/arcade_accelerate/__init__.py b/python/arcade_accelerate/__init__.py
index 7c00d00..e74fa08 100644
--- a/python/arcade_accelerate/__init__.py
+++ b/python/arcade_accelerate/__init__.py
@@ -24,12 +24,12 @@ def patch_hitboxes(patches):
 
 
 def patch_spritelist_collision(patches):
-    patches[
-        "arcade.sprite_list.collision"
-    ].check_for_collision_with_list = arcade_accelerate.check_for_collision_with_list
-    patches[
-        "arcade.sprite_list.collision"
-    ].check_for_collision_with_lists = arcade_accelerate.check_for_collision_with_lists
+    patches["arcade.sprite_list.collision"].check_for_collision_with_list = (
+        arcade_accelerate.check_for_collision_with_list
+    )
+    patches["arcade.sprite_list.collision"].check_for_collision_with_lists = (
+        arcade_accelerate.check_for_collision_with_lists
+    )
 
 
 def patch_math(patches):
@@ -37,6 +37,6 @@ def patch_math(patches):
 
 
 def patch_geometry(patches):
-    patches[
-        "arcade.geometry"
-    ].are_polygons_intersecting = arcade_accelerate.are_polygons_intersecting
+    patches["arcade.geometry"].are_polygons_intersecting = (
+        arcade_accelerate.are_polygons_intersecting
+    )
diff --git a/src/geometry.rs b/src/geometry.rs
index eb512f5..6d8b33e 100644
--- a/src/geometry.rs
+++ b/src/geometry.rs
@@ -2,6 +2,10 @@ use pyo3::prelude::*;
 
 #[pyfunction]
 pub fn are_polygons_intersecting(poly_a: Vec<(f32, f32)>, poly_b: Vec<(f32, f32)>) -> bool {
+    // If either polygon is empty, we should just return False
+    if poly_a.is_empty() || poly_b.is_empty() {
+        return false;
+    }
     let polygons = [poly_a, poly_b];
     for polygon in &polygons {
         for i1 in 0..polygon.len() {
@@ -171,6 +175,14 @@ mod tests {
         assert!(!result);
     }
 
+    #[test]
+    fn test_empty_polygons_intersecting() {
+        let poly_a: Vec<(f32, f32)> = vec![];
+        let poly_b: Vec<(f32, f32)> = vec![];
+        let result = are_polygons_intersecting(poly_a, poly_b);
+        assert!(!result);
+    }
+
     #[test]
     fn test_is_point_in_box() {
         // point inside
diff --git a/src/hitbox.rs b/src/hitbox.rs
index 5b35dfc..34b3c84 100644
--- a/src/hitbox.rs
+++ b/src/hitbox.rs
@@ -158,8 +158,8 @@ impl RotatableHitBox {
         let rad_cos = rad.cos();
         let rad_sin = rad.sin();
         for point in super_.points.iter() {
-            let x = ((point.0 * rad_cos - point.1 * rad_sin) * super_.scale.0) + super_.position.0;
-            let y = ((point.0 * rad_sin + point.1 * rad_cos) * super_.scale.1) + super_.position.1;
+            let x = ((point.0 * rad_cos + point.1 * rad_sin) * super_.scale.0) + super_.position.0;
+            let y = ((-point.0 * rad_sin + point.1 * rad_cos) * super_.scale.1) + super_.position.1;
             new_points.push((x, y));
         }
 
diff --git a/src/math.rs b/src/math.rs
index 385336f..8637e93 100644
--- a/src/math.rs
+++ b/src/math.rs
@@ -14,8 +14,8 @@ pub fn rotate_point(x: f32, y: f32, cx: f32, cy: f32, angle: f32) -> (f32, f32)
     let temp_y = y - cy;
 
     // rotate point
-    let xnew = (temp_x * c - temp_y * s) + cx;
-    let ynew = (temp_x * s + temp_y * c) + cy;
+    let xnew = (temp_x * c + temp_y * s) + cx;
+    let ynew = (-temp_x * s + temp_y * c) + cy;
 
     let precision = 10i32.pow(_PRECISION) as f32;
     let x_rounded = (xnew * precision).round() / precision;
@@ -232,6 +232,11 @@ mod tests {
     use super::*;
     use float_eq::assert_float_eq;
 
+    fn round_float(n: f32, decimals: u32) -> f32 {
+        let nn = 10i32.pow(decimals) as f32;
+        (n * nn).round() / nn
+    }
+
     #[test]
     fn test_clamp() {
         let mut result = clamp(1.2, 1.0, 2.0);
@@ -392,4 +397,52 @@ mod tests {
         assert_eq!(result.x, 0.0);
         assert_eq!(result.y, 0.0);
     }
+
+    #[test]
+    fn test_rotate_point() {
+        let mut x: f32 = 0.0;
+        let mut y: f32 = 0.0;
+        let mut cx: f32 = 0.0;
+        let mut cy: f32 = 0.0;
+        let mut angle: f32 = 0.0;
+        let mut point: (f32, f32) = rotate_point(x, y, cx, cy, angle);
+        assert_float_eq!(round_float(point.0, 2), 0.0, abs <= 1.0e-3);
+        assert_float_eq!(round_float(point.1, 2), 0.0, abs <= 1.0e-3);
+
+        x = 0.0;
+        y = 0.0;
+        cx = 0.0;
+        cy = 0.0;
+        angle = 90.0;
+        point = rotate_point(x, y, cx, cy, angle);
+        assert_float_eq!(round_float(point.0, 2), 0.0, abs <= 1.0e-3);
+        assert_float_eq!(round_float(point.1, 2), 0.0, abs <= 1.0e-3);
+
+        x = 50.0;
+        y = 50.0;
+        cx = 0.0;
+        cy = 0.0;
+        angle = 0.0;
+        point = rotate_point(x, y, cx, cy, angle);
+        assert_float_eq!(round_float(point.0, 2), 50.0, abs <= 1.0e-3);
+        assert_float_eq!(round_float(point.1, 2), 50.0, abs <= 1.0e-3);
+
+        x = 50.0;
+        y = 0.0;
+        cx = 0.0;
+        cy = 0.0;
+        angle = 90.0;
+        point = rotate_point(x, y, cx, cy, angle);
+        assert_float_eq!(round_float(point.0, 2), 0.0, abs <= 1.0e-3);
+        assert_float_eq!(round_float(point.1, 2), -50.0, abs <= 1.0e-3);
+
+        x = 20.0;
+        y = 10.0;
+        cx = 10.0;
+        cy = 10.0;
+        angle = 180.0;
+        point = rotate_point(x, y, cx, cy, angle);
+        assert_float_eq!(round_float(point.0, 2), 0.0, abs <= 1.0e-3);
+        assert_float_eq!(round_float(point.1, 2), 10.0, abs <= 1.0e-3);
+    }
 }