camera controller broken

1 files changed, 37 insertions, 0 deletions

diff --git a/client/src/camera.rs b/client/src/camera.rs
new file mode 100644
index 0000000..289e773
--- /dev/null
+++ b/client/src/camera.rs
@@ -0,0 +1,37 @@
+use glam::{EulerRot, Mat3, Mat4, Vec2, Vec3};
+
+pub struct Camera {
+    pos: Vec3,
+    rot: Vec3,
+    fov: f32,
+    aspect: f32,
+}
+
+impl Camera {
+    pub fn new() -> Self {
+        Self {
+            aspect: 1.,
+            fov: 0.5,
+            pos: Vec3::Z * 3.,
+            rot: Vec3::ZERO,
+        }
+    }
+    pub fn update(&mut self, input_move: Vec3, input_rot: Vec2, dt: f32) {
+        self.pos += input_move * dt;
+        self.rot.x += input_rot.x * 0.002;
+        self.rot.y += input_rot.y * 0.002;
+    }
+    pub fn to_matrix(&self) -> Mat4 {
+        // let tdir =
+        //     Mat3::from_euler(EulerRot::ZXY, self.rot.x, self.rot.y, self.rot.z) * Vec3::NEG_Z;
+        // * Mat4::look_at_rh(self.pos, self.pos + tdir, Vec3::Y)
+
+        Mat4::perspective_infinite_reverse_rh(self.fov, self.aspect, 0.1)
+            * Mat4::from_mat3(Mat3::from_euler(
+                EulerRot::ZXY,
+                self.rot.x,
+                self.rot.y,
+                self.rot.z,
+            ))
+    }
+}