diff --git a/build.rs b/build.rs
index 1f7211c1..b697e98a 100755
--- a/build.rs
+++ b/build.rs
@@ -2,6 +2,7 @@ use std::env;
 use std::path::PathBuf;
 
 fn main() {
+    println!("cargo::rustc-check-cfg=cfg(Debug)");
     // #[cfg(all(target_os = "macos", feature = "sdl2-bundled"))]
     // println!("cargo:rustc-link-arg=-Wl,-rpath,@loader_path");
 
diff --git a/game-exe/src/d_main.rs b/game-exe/src/d_main.rs
index 26be79a4..1249a211 100644
--- a/game-exe/src/d_main.rs
+++ b/game-exe/src/d_main.rs
@@ -29,7 +29,7 @@ use gamestate::Game;
 use gamestate_traits::sdl2::keyboard::Scancode;
 use gamestate_traits::sdl2::pixels::PixelFormatEnum;
 use gamestate_traits::sdl2::render::Canvas;
-use gamestate_traits::sdl2::video::{Window, WindowPos};
+use gamestate_traits::sdl2::video::Window;
 use gamestate_traits::{sdl2, GameState, SubsystemTrait};
 use hud_doom::Messages;
 use input::Input;
@@ -453,7 +453,7 @@ fn process_events(
     let event_callback = |event: sdl2::event::Event| match event {
         sdl2::event::Event::Window {
             timestamp: _,
-            window_id,
+            window_id: _,
             win_event,
         } => {
             match win_event {
diff --git a/game-exe/src/main.rs b/game-exe/src/main.rs
index 82f9380c..440d6e33 100644
--- a/game-exe/src/main.rs
+++ b/game-exe/src/main.rs
@@ -97,7 +97,6 @@ fn main() -> Result<(), Box<dyn Error>> {
     for n in 0..num_disp {
         info!("Found display {:?}", video_ctx.display_name(n)?);
     }
-    let b = video_ctx.display_bounds(1)?;
     let mut window = video_ctx
         .window("ROOM4DOOM", 0, 0)
         .opengl()
diff --git a/gameplay/src/thing/movement.rs b/gameplay/src/thing/movement.rs
index dce992d1..3bb0c641 100755
--- a/gameplay/src/thing/movement.rs
+++ b/gameplay/src/thing/movement.rs
@@ -16,7 +16,7 @@ use crate::level::flags::LineDefFlags;
 use crate::level::map_data::BSPTrace;
 use crate::level::map_defs::{BBox, LineDef, SlopeType};
 use crate::utilities::{
-    box_on_line_side, circle_circle_intersect, p_random, path_traverse, BestSlide, Intercept, PortalZ, FRACUNIT_DIV4
+    box_on_line_side, circle_circle_intersect, fixed_to_float, p_random, path_traverse, BestSlide, Intercept, PortalZ, FRACUNIT_DIV4
 };
 use crate::{MapObjKind, MapObject, MapPtr};
 
@@ -24,8 +24,8 @@ use super::MapObjFlag;
 
 pub const GRAVITY: f32 = 1.0;
 pub const MAXMOVE: f32 = 30.0;
-pub const STOPSPEED: f32 = 0.06250095; // 0x1000
-pub const FRICTION: f32 = 0.9062638; // 0xE800
+pub const STOPSPEED: f32 = fixed_to_float(0x1000);
+pub const FRICTION: f32 = fixed_to_float(0xE800);
 
 //const MAXSPECIALCROSS: i32 = 8;
 pub const PT_ADDLINES: i32 = 1;
@@ -235,11 +235,10 @@ impl MapObject {
             if let Some(player) = self.player_mut() {
                 if player.cmd.forwardmove == 0 && player.cmd.sidemove == 0 {
                     self.set_state(StateNum::PLAY);
-                    self.momxyz = Vec3::default();
                 }
-            } else {
-                self.momxyz = Vec3::default();
             }
+            self.momxyz.x = 0.0;
+            self.momxyz.y = 0.0;
         } else {
             self.momxyz.x *= FRICTION;
             self.momxyz.y *= FRICTION;
diff --git a/gameplay/src/utilities.rs b/gameplay/src/utilities.rs
index 0862ca0b..9dc2d9de 100755
--- a/gameplay/src/utilities.rs
+++ b/gameplay/src/utilities.rs
@@ -17,14 +17,14 @@ const FRACUNIT: f32 = (1 << FRACBITS) as f32;
 pub const FRACUNIT_DIV4: f32 = FRACUNIT / 4.0;
 
 /// Convert a Doom `fixed_t` fixed-point float to `f32`
-pub fn fixed_to_float(value: i32) -> f32 {
+pub const fn fixed_to_float(value: i32) -> f32 {
     value as f32 / FRACUNIT
 }
 
 const DEG_TO_RAD: f32 = PI / 180.0;
 
 /// Convert a BAM (Binary Angle Measure) to radians
-pub fn bam_to_radian(value: u32) -> f32 {
+pub const fn bam_to_radian(value: u32) -> f32 {
     (value as f32 * 8.381_903e-8) * DEG_TO_RAD
 }
 
@@ -47,21 +47,21 @@ pub const RNDTABLE: [i32; 256] = [
     84, 118, 222, 187, 136, 120, 163, 236, 249,
 ];
 
-pub fn p_random() -> i32 {
+pub const fn p_random() -> i32 {
     unsafe {
         PRNDINDEX = (PRNDINDEX + 1) & 0xFF;
         RNDTABLE[PRNDINDEX]
     }
 }
 
-pub fn m_random() -> i32 {
+pub const fn m_random() -> i32 {
     unsafe {
         RNDINDEX = (RNDINDEX + 1) & 0xFF;
         RNDTABLE[RNDINDEX]
     }
 }
 
-pub fn m_clear_random() {
+pub const fn m_clear_random() {
     unsafe {
         // Not clearing this random as it's used only by screen wipe so far
         //RNDINDEX = 0;
@@ -69,7 +69,7 @@ pub fn m_clear_random() {
     }
 }
 
-pub fn p_subrandom() -> i32 {
+pub const fn p_subrandom() -> i32 {
     let r = p_random();
     r - p_random()
 }
@@ -83,7 +83,7 @@ pub struct Trace {
 }
 
 impl Trace {
-    pub fn new(xyz: Vec3, dxyz: Vec3) -> Self {
+    pub const fn new(xyz: Vec3, dxyz: Vec3) -> Self {
         Self { xyz, dxyz }
     }
 }
diff --git a/intermission/doom/src/defs.rs b/intermission/doom/src/defs.rs
index 93485f57..70000bd1 100644
--- a/intermission/doom/src/defs.rs
+++ b/intermission/doom/src/defs.rs
@@ -11,23 +11,23 @@ pub(crate) struct Patches {
     // pub minus: WadPatch,
     pub percent: WadPatch,
     pub kills: WadPatch,
-    pub secret: WadPatch,
     pub sp_secret: WadPatch,
     pub items: WadPatch,
-    pub frags: WadPatch,
     pub colon: WadPatch,
     pub time: WadPatch,
-    pub sucks: WadPatch,
     pub par: WadPatch,
-    pub killers: WadPatch,
-    pub victims: WadPatch,
-    pub total: WadPatch,
-    pub star: WadPatch,
-    pub bstar: WadPatch,
     pub enter: WadPatch,
     pub finish: WadPatch,
-    pub players: [WadPatch; MAXPLAYERS],
-    pub bplayers: [WadPatch; MAXPLAYERS],
+    // secret: WadPatch,
+    // frags: WadPatch,
+    // killers: WadPatch,
+    // victims: WadPatch,
+    // total: WadPatch,
+    // sucks: WadPatch,
+    // star: WadPatch,
+    // bstar: WadPatch,
+    // players: [WadPatch; MAXPLAYERS],
+    // bplayers: [WadPatch; MAXPLAYERS],
 }
 
 impl Patches {
@@ -58,23 +58,23 @@ impl Patches {
             nums: get_num_sprites("WINUM", 0, wad),
             percent: WadPatch::from_lump(wad.get_lump("WIPCNT").unwrap()),
             kills: WadPatch::from_lump(wad.get_lump("WIOSTK").unwrap()),
-            secret: WadPatch::from_lump(wad.get_lump("WIOSTS").unwrap()),
             sp_secret: WadPatch::from_lump(wad.get_lump("WISCRT2").unwrap()),
             items: WadPatch::from_lump(wad.get_lump("WIOSTI").unwrap()),
-            frags: WadPatch::from_lump(wad.get_lump("WIFRGS").unwrap()),
             colon: WadPatch::from_lump(wad.get_lump("WICOLON").unwrap()),
             time: WadPatch::from_lump(wad.get_lump("WITIME").unwrap()),
-            sucks: WadPatch::from_lump(wad.get_lump("WISUCKS").unwrap()),
             par: WadPatch::from_lump(wad.get_lump("WIPAR").unwrap()),
-            killers: WadPatch::from_lump(wad.get_lump("WIKILRS").unwrap()),
-            victims: WadPatch::from_lump(wad.get_lump("WIVCTMS").unwrap()),
-            total: WadPatch::from_lump(wad.get_lump("WIMSTT").unwrap()),
-            star: WadPatch::from_lump(wad.get_lump("STFST01").unwrap()),
-            bstar: WadPatch::from_lump(wad.get_lump("STFDEAD0").unwrap()),
             enter: WadPatch::from_lump(wad.get_lump("WIENTER").unwrap()),
             finish: WadPatch::from_lump(wad.get_lump("WIF").unwrap()),
-            players: unsafe { players.map(|n| n.assume_init()) },
-            bplayers: unsafe { bplayers.map(|n| n.assume_init()) },
+            // secret: WadPatch::from_lump(wad.get_lump("WIOSTS").unwrap()),
+            // frags: WadPatch::from_lump(wad.get_lump("WIFRGS").unwrap()),
+            // sucks: WadPatch::from_lump(wad.get_lump("WISUCKS").unwrap()),
+            // killers: WadPatch::from_lump(wad.get_lump("WIKILRS").unwrap()),
+            // victims: WadPatch::from_lump(wad.get_lump("WIVCTMS").unwrap()),
+            // total: WadPatch::from_lump(wad.get_lump("WIMSTT").unwrap()),
+            // star: WadPatch::from_lump(wad.get_lump("STFST01").unwrap()),
+            // bstar: WadPatch::from_lump(wad.get_lump("STFDEAD0").unwrap()),
+            // players: unsafe { players.map(|n| n.assume_init()) },
+            // bplayers: unsafe { bplayers.map(|n| n.assume_init()) },
         }
     }
 }
@@ -149,12 +149,12 @@ pub(crate) struct Animation {
     // following must be initialized to zero before use!
     // next value of bcnt (used in conjunction with period)
     pub next_tic: i32,
-    // last drawn animation frame (Doom II)
-    pub last_drawn: i32,
     // next frame number to animate
     pub counter: i32,
-    // used by RANDOM and LEVEL when animating (Doom II)
-    pub state: i32,
+    // // used by RANDOM and LEVEL when animating (Doom II)
+    // pub state: i32,
+    // // last drawn animation frame (Doom II)
+    // pub last_drawn: i32,
 }
 
 impl Animation {
@@ -174,9 +174,9 @@ impl Animation {
             data2: 0,
             patches: Vec::new(),
             next_tic: 0,
-            last_drawn: 0,
             counter: 0,
-            state: 0,
+            // state: 0,
+            // last_drawn: 0,
         }
     }
 }