From cde43cfd5c285dc213895cebc305d9ba7f094d1a Mon Sep 17 00:00:00 2001
From: tcmal <me@aria.rip>
Date: Sun, 25 Aug 2024 17:44:22 +0100
Subject: feat(contrib): add mouse input to flycam controls

---
 stockton-contrib/src/flycam.rs | 31 ++++++++++++++++++++++---------
 1 file changed, 22 insertions(+), 9 deletions(-)

(limited to 'stockton-contrib')

diff --git a/stockton-contrib/src/flycam.rs b/stockton-contrib/src/flycam.rs
index 7b82c4f..093f75a 100644
--- a/stockton-contrib/src/flycam.rs
+++ b/stockton-contrib/src/flycam.rs
@@ -15,7 +15,9 @@
  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-use stockton_input::{Axis, InputManager};
+use std::f32::consts::PI;
+
+use stockton_input::{Axis, InputManager, Mouse};
 use stockton_types::components::Transform;
 use stockton_types::Vector3;
 
@@ -29,27 +31,38 @@ pub trait FlycamInput {
 
 pub struct FlycamControlled {
     pub speed: f32,
+    pub sensitivity: f32,
+}
+
+impl FlycamControlled {
+    pub fn new(speed: f32, pixels_per_360: f32) -> Self {
+        FlycamControlled {
+            speed,
+            sensitivity: (2.0 * PI) / pixels_per_360,
+        }
+    }
 }
 
 #[system(for_each)]
 pub fn flycam_move<T>(
     #[resource] manager: &T,
     #[resource] timing: &Timing,
+    #[resource] mouse: &Mouse,
     transform: &mut Transform,
     flycam: &FlycamControlled,
 ) where
     T: 'static + InputManager,
     T::Inputs: FlycamInput,
 {
-    // TODO: Deal with looking around
-
     let inputs = manager.get_inputs();
-    let speed = flycam.speed;
-    let impulse = Vector3::new(
-        **inputs.get_x_axis() as f32 * speed * timing.delta_time,
-        **inputs.get_y_axis() as f32 * speed * timing.delta_time,
-        **inputs.get_z_axis() as f32 * speed * timing.delta_time,
+    let delta = Vector3::new(
+        **inputs.get_x_axis() as f32 * flycam.speed * timing.delta_time,
+        **inputs.get_y_axis() as f32 * flycam.speed * timing.delta_time,
+        **inputs.get_z_axis() as f32 * flycam.speed * timing.delta_time,
     );
 
-    transform.position += impulse;
+    transform.translate(delta);
+
+    let rotation = mouse.delta * flycam.sensitivity;
+    transform.rotate(Vector3::new(-rotation.y, rotation.x, 0.0));
 }
-- 
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