Split state.rs and add debug menu

1 files changed, 57 insertions, 0 deletions

diff --git a/src/gfx/debug_menu.rs b/src/gfx/debug_menu.rs
new file mode 100644
index 0000000..daca08d
--- /dev/null
+++ b/src/gfx/debug_menu.rs
@@ -0,0 +1,57 @@
+use super::{camera::Camera, font::Font};
+use cgmath::{Deg, Rad};
+use wgpu_glyph::{Section, Text};
+
+pub struct DebugMenu {
+    pub enabled: bool,
+    pub fps: usize,
+}
+
+impl DebugMenu {
+    pub fn new() -> Self {
+        Self {
+            enabled: false,
+            fps: 0,
+        }
+    }
+
+    pub fn render(&self, bounds: (f32, f32), camera: &Camera, font: &mut Font) {
+        if !self.enabled {
+            return;
+        }
+
+        let mut offset = 0.0;
+
+        let mut add_text = |txt: &str| {
+            offset += 2.0;
+
+            font.add(Section {
+                screen_position: (2.0, offset),
+                bounds,
+                text: vec![Text::new(txt)
+                    .with_color([1.0, 1.0, 1.0, 1.0])
+                    .with_scale(20.0)],
+                ..Section::default()
+            });
+
+            offset += 20.0;
+        };
+
+        let angle = |x| Deg::from(Rad(x)).0;
+
+        let pos = camera.first_person.position;
+
+        add_text(&format!(
+            "{} {}",
+            env!("CARGO_PKG_NAME"),
+            env!("CARGO_PKG_VERSION")
+        ));
+        add_text(&format!("{} FPS", self.fps));
+        add_text(&format!("({:.1}, {:.1}, {:.1})", pos[0], pos[1], pos[2]));
+        add_text(&format!(
+            "yaw: {:.1}°",
+            (angle(camera.first_person.yaw) + 360.0) % 360.0
+        ));
+        add_text(&format!("pitch: {:.1}°", angle(camera.first_person.pitch)));
+    }
+}