diff --git a/src/engine/datatypes.ts b/src/engine/datatypes.ts
index 479e768..341065f 100644
--- a/src/engine/datatypes.ts
+++ b/src/engine/datatypes.ts
@@ -84,6 +84,13 @@ export class Point {
     return new Point(this.x * other.w, this.y * other.h);
   }
 
+  unscale(other: Point | Size) {
+    if (other instanceof Point) {
+      return new Point(this.x / other.x, this.y / other.y);
+    }
+    return new Point(this.x / other.w, this.y / other.h);
+  }
+
   subtract(top: Point): Size {
     return new Size(this.x - top.x, this.y - top.y);
   }
@@ -91,6 +98,13 @@ export class Point {
   manhattan(other: Point) {
     return Math.abs(this.x - other.x) + Math.abs(this.y - other.y);
   }
+
+  snap(x: number, y: number) {
+    return new Point(
+      lerp(x, Math.floor(this.x), Math.ceil(this.x)),
+      lerp(y, Math.floor(this.y), Math.ceil(this.y))
+    );
+  }
 }
 
 export class Size {
@@ -118,12 +132,16 @@ export class Size {
 export class Rect {
   readonly top: Point;
   readonly size: Size;
-
   constructor(top: Point, size: Size) {
     this.top = top;
     this.size = size;
   }
 
+  toString(): string {
+    return `Rect(${this.top},${this.size})`;
+  }
+
+
   offset(offset: Point) {
     return new Rect(this.top.offset(offset), this.size);
   }
@@ -137,6 +155,28 @@ export class Rect {
     );
   }
 
+  overlappedCells(size: Size) {
+    let x0 = this.top.x;
+    let y0 = this.top.y;
+    let x1 = x0 + this.size.w;
+    let y1 = y0 + this.size.w;
+
+    let cx0 = Math.floor(x0 / size.w);
+    let cy0 = Math.floor(y0 / size.h);
+    let cx1 = Math.ceil(x1 / size.w);
+    let cy1 = Math.ceil(y1 / size.h);
+
+    let cells = [];
+    for (let cy = cy0; cy < cy1; cy++) {
+      for (let cx = cx0; cx < cx1; cx++) {
+        let px0 = cx * size.w;
+        let py0 = cy * size.h;
+        cells.push(new Rect(new Point(px0, py0), size));
+      }
+    }
+    return cells;
+  }
+
   overlaps(other: Rect) {
     let ax0 = this.top.x;
     let ay0 = this.top.y;
@@ -254,3 +294,13 @@ export enum AlignY {
   Middle = 1,
   Bottom = 2,
 }
+
+export function lerp(amt: number, lo: number, hi: number) {
+  if (amt <= 0) {
+    return lo;
+  }
+  if (amt >= 1) {
+    return hi;
+  }
+  return lo + (hi - lo) * amt;
+};
diff --git a/src/gridart.ts b/src/gridart.ts
index 2d33bae..7249895 100644
--- a/src/gridart.ts
+++ b/src/gridart.ts
@@ -8,7 +8,7 @@ export const CENTER = new Point(192, 192);
 export const MOULDING_SZ = new Size(1, 1);
 
 export class GridArt {
-  #at: Point;
+  #atPixel: Point;
 
   #floorCenter: Point;
   #ceilingCenter: Point;
@@ -17,27 +17,29 @@ export class GridArt {
   #floorBr: Point;
   #ceilingBr: Point;
 
-  constructor(at: Point) {
-    this.#at = at;
-    this.#floorCenter = at.scale(FLOOR_CELL_SIZE).offset(CENTER);
+  constructor(atPixel: Point) {
+    this.#atPixel = atPixel;
+    let at = atPixel.unscale(FLOOR_CELL_SIZE);
+    this.#floorCenter = atPixel.offset(CENTER);
     this.#ceilingCenter = at.scale(CEILING_CELL_SIZE).offset(CENTER);
 
-    this.#floorTl = at
-      .offset(new Point(-0.5, -0.5))
-      .scale(FLOOR_CELL_SIZE)
+    this.#floorTl = atPixel.offset(new Point(-FLOOR_CELL_SIZE.w / 2, -FLOOR_CELL_SIZE.h / 2))
       .offset(CENTER);
     this.#ceilingTl = at
       .offset(new Point(-0.5, -0.5))
       .scale(CEILING_CELL_SIZE)
-      .offset(CENTER);
-    this.#floorBr = at
-      .offset(new Point(0.5, 0.5))
-      .scale(FLOOR_CELL_SIZE)
+      .offset(CENTER)
+      .snap(0, 0)
+    this.#floorBr = atPixel.offset(new Point(FLOOR_CELL_SIZE.w / 2, FLOOR_CELL_SIZE.h / 2))
       .offset(CENTER);
     this.#ceilingBr = at
       .offset(new Point(0.5, 0.5))
       .scale(CEILING_CELL_SIZE)
-      .offset(CENTER);
+      .offset(CENTER)
+      .snap(0, 0)
+
+    // console.log(`floorTl: ${this.#floorTl}`)
+    // console.log(`floorBr: ${this.#floorBr}`)
   }
 
   get floorRect(): Rect {
@@ -83,84 +85,134 @@ export class GridArt {
   }
 
   drawWallTop(color: Color) {
-    if (this.#at.y > 0) {
+    if (this.#atPixel.y > FLOOR_CELL_SIZE.h / 2) {
       return;
     }
     this.#drawWallTop(color);
   }
 
   drawWallLeft(color: Color) {
-    if (this.#at.x > 0) {
+    if (this.#atPixel.x > FLOOR_CELL_SIZE.w / 2) {
       return;
     }
     this.#drawWallLeft(color);
   }
 
   drawWallBottom(color: Color) {
-    if (this.#at.y < 0) {
+    if (this.#atPixel.y < -FLOOR_CELL_SIZE.h / 2) {
       return;
     }
-    new GridArt(this.#at.offset(new Point(0, 1))).#drawWallTop(color);
+    new GridArt(this.#atPixel.offset(new Point(0, FLOOR_CELL_SIZE.h))).#drawWallTop(color);
   }
 
   drawWallRight(color: Color) {
-    if (this.#at.x < 0) {
+    if (this.#atPixel.x < -FLOOR_CELL_SIZE.w / 2) {
       return;
     }
-    new GridArt(this.#at.offset(new Point(1, 0))).#drawWallLeft(color);
+    new GridArt(this.#atPixel.offset(new Point(FLOOR_CELL_SIZE.w, 0))).#drawWallLeft(color);
   }
 
   drawMouldingTop(color: Color) {
-    let lhs = this.#ceilingTl.offset(new Point(0, -MOULDING_SZ.h));
-    D.fillRect(lhs, new Size(CEILING_CELL_SIZE.w, MOULDING_SZ.h), color);
+    let x0 = this.#ceilingTl.x;
+    let y0 = this.#ceilingTl.y - MOULDING_SZ.h;
+    let x1 = this.#ceilingBr.x;
+    let y1 = this.#ceilingTl.y;
+
+    D.fillRect(
+      new Point(x0, y0),
+      new Size(x1 - x0, y1 - y0),
+      color
+    );
   }
 
   drawMouldingTopLeft(color: Color) {
+    let x0 = this.#ceilingTl.x - MOULDING_SZ.w;
+    let y0 = this.#ceilingTl.y - MOULDING_SZ.h;
+    let x1 = this.#ceilingTl.x;
+    let y1 = this.#ceilingTl.y;
+
     D.fillRect(
-      this.#ceilingTl.offset(new Point(-MOULDING_SZ.w, -MOULDING_SZ.h)),
-      MOULDING_SZ,
-      color,
+      new Point(x0, y0),
+      new Size(x1 - x0, y1 - y0),
+      color
     );
   }
 
   drawMouldingLeft(color: Color) {
-    let lhs = this.#ceilingTl.offset(new Point(-MOULDING_SZ.w, 0));
-    D.fillRect(lhs, new Size(MOULDING_SZ.w, CEILING_CELL_SIZE.h), color);
+    let x0 = this.#ceilingTl.x - MOULDING_SZ.w;
+    let y0 = this.#ceilingTl.y;
+    let x1 = this.#ceilingTl.x;
+    let y1 = this.#ceilingBr.y;
+
+    D.fillRect(
+      new Point(x0, y0),
+      new Size(x1 - x0, y1 - y0),
+      color
+    );
   }
 
   drawMouldingTopRight(color: Color) {
+    let x0 = this.#ceilingBr.x;
+    let y0 = this.#ceilingTl.y - MOULDING_SZ.h;
+    let x1 = this.#ceilingBr.x + MOULDING_SZ.w;
+    let y1 = this.#ceilingTl.y;
+
     D.fillRect(
-      this.#ceilingTl.offset(new Point(CEILING_CELL_SIZE.w, -MOULDING_SZ.h)),
-      MOULDING_SZ,
-      color,
+      new Point(x0, y0),
+      new Size(x1 - x0, y1 - y0),
+      color
     );
   }
 
   drawMouldingBottom(color: Color) {
-    let lhs = this.#ceilingTl.offset(new Point(0, CEILING_CELL_SIZE.h));
-    D.fillRect(lhs, new Size(CEILING_CELL_SIZE.w, MOULDING_SZ.h), color);
+    let x0 = this.#ceilingTl.x;
+    let y0 = this.#ceilingBr.y;
+    let x1 = this.#ceilingBr.x;
+    let y1 = this.#ceilingBr.y + MOULDING_SZ.h;
+
+    D.fillRect(
+      new Point(x0, y0),
+      new Size(x1 - x0, y1 - y0),
+      color
+    );
   }
 
   drawMouldingBottomLeft(color: Color) {
+    let x0 = this.#ceilingTl.x - MOULDING_SZ.w;
+    let y0 = this.#ceilingBr.y;
+    let x1 = this.#ceilingTl.x;
+    let y1 = this.#ceilingBr.y + MOULDING_SZ.h;
+
     D.fillRect(
-      this.#ceilingTl.offset(new Point(-MOULDING_SZ.w, CEILING_CELL_SIZE.h)),
-      MOULDING_SZ,
+      new Point(x0, y0),
+      new Size(x1 - x0, y1 - y0),
       color,
     );
   }
 
   drawMouldingRight(color: Color) {
-    let lhs = this.#ceilingTl.offset(new Point(CEILING_CELL_SIZE.w, 0));
-    D.fillRect(lhs, new Size(MOULDING_SZ.w, CEILING_CELL_SIZE.h), color);
+    let x0 = this.#ceilingBr.x;
+    let y0 = this.#ceilingTl.y;
+    let x1 = this.#ceilingBr.x + MOULDING_SZ.w;
+    let y1 = this.#ceilingBr.y;
+
+    D.fillRect(
+      new Point(x0, y0),
+      new Size(x1 - x0, y1 - y0),
+      color
+    );
   }
 
   drawMouldingBottomRight(color: Color) {
+    let x0 = this.#ceilingBr.x;
+    let y0 = this.#ceilingBr.y;
+    let x1 = this.#ceilingBr.x + MOULDING_SZ.w;
+    let y1 = this.#ceilingBr.y + MOULDING_SZ.h;
+
     D.fillRect(
-      this.#ceilingTl.offset(
-        new Point(CEILING_CELL_SIZE.w, CEILING_CELL_SIZE.h),
-      ),
-      MOULDING_SZ,
-      color,
+      new Point(x0, y0),
+      new Size(x1 - x0, y1 - y0),
+      color
     );
   }
 
diff --git a/src/huntmode.ts b/src/huntmode.ts
index 90916d0..da5bce0 100644
--- a/src/huntmode.ts
+++ b/src/huntmode.ts
@@ -1,7 +1,7 @@
-import { Point, Size } from "./engine/datatypes.ts";
-import { DrawPile } from "./drawpile.ts";
-import { D } from "./engine/public.ts";
-import { sprThrallLore } from "./sprites.ts";
+import {Point, Rect, Size} from "./engine/datatypes.ts";
+import {DrawPile} from "./drawpile.ts";
+import {D, I} from "./engine/public.ts";
+import {sprThrallLore} from "./sprites.ts";
 import {
   BG_INSET,
   BG_WALL_OR_UNREVEALED,
@@ -11,16 +11,16 @@ import {
   FG_TEXT_ENDORSED,
   FG_TOO_EXPENSIVE,
 } from "./colors.ts";
-import { getPlayerProgress } from "./playerprogress.ts";
-import { Architecture, LoadedNewMap } from "./newmap.ts";
-import { FLOOR_CELL_SIZE, GridArt } from "./gridart.ts";
-import { shadowcast } from "./shadowcast.ts";
-import { getCheckModal } from "./checkmodal.ts";
-import { withCamera } from "./layout.ts";
+import {getPlayerProgress} from "./playerprogress.ts";
+import {Architecture, LoadedNewMap} from "./newmap.ts";
+import {FLOOR_CELL_SIZE, GridArt} from "./gridart.ts";
+import {shadowcast} from "./shadowcast.ts";
+import {withCamera} from "./layout.ts";
 
 export class HuntMode {
   map: LoadedNewMap;
-  player: Point;
+  floatingPlayer: Point;
+  velocity: Point;
   faceLeft: boolean;
 
   drawpile: DrawPile;
@@ -29,7 +29,8 @@ export class HuntMode {
 
   constructor(depth: number, map: LoadedNewMap) {
     this.map = map;
-    this.player = map.entrance;
+    this.floatingPlayer = map.entrance.offset(new Point(0.5, 0.5));
+    this.velocity = new Point(0, 0);
     this.faceLeft = false;
 
     this.drawpile = new DrawPile();
@@ -39,13 +40,27 @@ export class HuntMode {
     // getCheckModal().show(standardVaultTemplates[5].checks[1], null)
   }
 
+  get gridifiedPlayer(): Point {
+    return new Point(
+      Math.floor(this.floatingPlayer.x),
+      Math.floor(this.floatingPlayer.y),
+    );
+  }
+
+  get pixelPlayer(): Point {
+    return new Point(
+      Math.floor(this.floatingPlayer.x * FLOOR_CELL_SIZE.w - FLOOR_CELL_SIZE.w / 2),
+      Math.floor(this.floatingPlayer.y * FLOOR_CELL_SIZE.h - FLOOR_CELL_SIZE.h / 2),
+    )
+  }
+
   getDepth() {
     return this.depth;
   }
 
   // == update logic ==
   #collectResources() {
-    let cell = this.map.get(this.player);
+    let cell = this.map.get(this.gridifiedPlayer);
 
     let pickup = cell.pickup;
     if (pickup != null) {
@@ -61,11 +76,11 @@ export class HuntMode {
     }
 
     let dist = Math.max(
-      Math.abs(mapPosition.x - this.player.x),
-      Math.abs(mapPosition.y - this.player.y),
+      Math.abs(mapPosition.x - this.gridifiedPlayer.x),
+      Math.abs(mapPosition.y - this.gridifiedPlayer.y),
     );
 
-    if (dist != 1) {
+    if (dist > 1) {
       return null;
     }
 
@@ -76,6 +91,7 @@ export class HuntMode {
     return pickup.computeCostToClick();
   }
 
+  /*
   movePlayerTo(newPosition: Point) {
     let oldX = this.player.x;
     let newX = newPosition.x;
@@ -88,9 +104,10 @@ export class HuntMode {
     }
     this.#collectResources();
   }
+   */
 
   getZoneLabel(): string | null {
-    return this.map.get(this.player).zoneLabel;
+    return this.map.get(this.gridifiedPlayer).zoneLabel;
   }
 
   // draw
@@ -109,18 +126,20 @@ export class HuntMode {
     this.frame += 1;
     this.drawpile.clear();
 
-    let globalOffset = new Point(
-      this.player.x * FLOOR_CELL_SIZE.w,
-      this.player.y * FLOOR_CELL_SIZE.h,
-    ).offset(new Point(-192, -192));
+    let globalOffset = this.pixelPlayer.offset(
+      new Point(-192, -192)
+    );
 
+    this.#updatePlayer();
     this.#updateFov();
     this.#updatePickups();
 
     for (let y = 0; y < this.map.size.h; y += 1) {
       for (let x = 0; x < this.map.size.w; x += 1) {
-        let offsetInCells = new Point(x - this.player.x, y - this.player.y);
-        this.#drawMapCell(offsetInCells, new Point(x, y));
+        let offsetInPixels = new Point(x, y).scale(FLOOR_CELL_SIZE).offset(
+          this.pixelPlayer.negate()
+        );
+        this.#drawMapCell(offsetInPixels, new Point(x, y));
       }
     }
     this.#drawPlayer(globalOffset);
@@ -130,6 +149,60 @@ export class HuntMode {
     this.drawpile.executeOnClick();
   }
 
+  #updatePlayer() {
+    let dx = this.velocity.x;
+    let dy = this.velocity.y;
+
+    let amt = 0.005;
+
+    if (I.isKeyDown("w")) { dy -= amt; }
+    if (I.isKeyDown("s")) { dy += amt; }
+    if (I.isKeyDown("a")) { dx -= amt; }
+    if (I.isKeyDown("d")) { dx += amt; }
+
+    dx *= 0.9;
+    dy *= 0.9;
+
+    this.velocity = new Point(dx, dy);
+    let nSteps = 40;
+    let szX = 0.5;
+    let szY = 0.5;
+
+    for (let i = 0; i < nSteps; i++) {
+      let oldXy = this.floatingPlayer;
+      let newXy = oldXy.offset(new Point(this.velocity.x / nSteps, 0));
+
+      let bbox = new Rect(
+        newXy.offset(new Point(-szX / 2, -szY / 2)),
+        new Size(szX, szY)
+      )
+
+      for (let cell of bbox.overlappedCells(new Size(1, 1)).values()) {
+        if (this.#blocksMovement(cell.top)) {
+          this.velocity = new Point(0, this.velocity.y);
+          newXy = oldXy;
+        }
+      }
+
+      oldXy = newXy;
+      newXy = oldXy.offset(new Point(0, this.velocity.y / nSteps));
+
+      bbox = new Rect(
+        newXy.offset(new Point(-szX / 2, -szY / 2)),
+        new Size(szX, szY)
+      )
+
+      for (let cell of bbox.overlappedCells(new Size(1, 1)).values()) {
+        if (this.#blocksMovement(cell.top)) {
+          this.velocity = new Point(this.velocity.x, 0);
+          newXy = oldXy;
+        }
+      }
+
+      this.floatingPlayer = newXy;
+    }
+  }
+
   #updateFov() {
     for (let y = 0; y < this.map.size.h; y += 1) {
       for (let x = 0; x < this.map.size.w; x += 1) {
@@ -137,15 +210,15 @@ export class HuntMode {
       }
     }
 
-    this.map.get(new Point(this.player.x, this.player.y)).revealed = true;
+    this.map.get(this.gridifiedPlayer).revealed = true;
     shadowcast(
-      [this.player.x, this.player.y],
+      [this.gridifiedPlayer.x, this.gridifiedPlayer.y],
       ([x, y]: [number, number]): boolean => {
         let cell = this.map.get(new Point(x, y));
         let pickup = cell.pickup;
         return (
           cell.architecture == Architecture.Wall ||
-          (pickup != null && pickup.isObstructive())
+          (pickup != null && pickup.obstructsVision())
         );
       },
       ([x, y]: [number, number]) => {
@@ -167,8 +240,8 @@ export class HuntMode {
   }
 
   #inVisibilityRange(x: number, y: number): boolean {
-    let dx = x - this.player.x;
-    let dy = y - this.player.y;
+    let dx = x - this.gridifiedPlayer.x;
+    let dy = y - this.gridifiedPlayer.y;
     return dx * dx + dy * dy < 13;
   }
 
@@ -176,14 +249,14 @@ export class HuntMode {
     this.drawpile.draw();
   }
 
-  #drawMapCell(offsetInCells: Point, mapPosition: Point) {
+  #drawMapCell(offsetInPixels: Point, mapPosition: Point) {
     const OFFSET_UNDER_FLOOR = -512 + mapPosition.y;
     const OFFSET_FLOOR = -256 + mapPosition.y;
     const OFFSET_AIR = 0 + mapPosition.y;
     const OFFSET_TOP = 256 + mapPosition.y;
     const OFFSET_TOP_OF_TOP = 512 + mapPosition.y;
 
-    const gridArt = new GridArt(offsetInCells);
+    const gridArt = new GridArt(offsetInPixels);
 
     let cellData = this.map.get(mapPosition);
 
@@ -240,8 +313,10 @@ export class HuntMode {
           }
 
           getPlayerProgress().spendBlood(cost);
-          this.movePlayerTo(mapPosition);
-          getCheckModal().show(null, null);
+
+          // TODO: This isn't a thing anymore
+          // this.movePlayerTo(mapPosition);
+          // getCheckModal().show(null, null);
         },
         onSqueeze: () => {
           // the cost _gates_ squeezes
@@ -320,10 +395,7 @@ export class HuntMode {
   }
 
   #drawPlayer(globalOffset: Point) {
-    let cellOffset = new Point(
-      this.player.x * FLOOR_CELL_SIZE.w,
-      this.player.y * FLOOR_CELL_SIZE.h,
-    ).offset(globalOffset.negate());
+    let cellOffset = this.pixelPlayer.offset(globalOffset.negate());
     this.drawpile.add(0, () => {
       D.drawSprite(sprThrallLore, cellOffset, 1, {
         xScale: this.faceLeft ? -2 : 2,
@@ -379,6 +451,20 @@ export class HuntMode {
       );
     });
   }
+
+  #blocksMovement(xy: Point) {
+    let cell = this.map.get(xy);
+    if (cell.architecture == Architecture.Wall) {
+      return true;
+    }
+
+    if (cell.pickup?.blocksMovement()) {
+      return true;
+    }
+
+    // TODO: Other cases
+    return false;
+  }
 }
 
 let active: HuntMode | null = null;
diff --git a/src/pickups.ts b/src/pickups.ts
index 84feafb..6345084 100644
--- a/src/pickups.ts
+++ b/src/pickups.ts
@@ -44,7 +44,11 @@ export class LockPickup {
     return true;
   }
 
-  isObstructive() {
+  blocksMovement() {
+    return true;
+  }
+
+  obstructsVision() {
     return true;
   }
 
@@ -90,7 +94,11 @@ export class BreakableBlockPickup {
     return true;
   }
 
-  isObstructive() {
+  blocksMovement() {
+    return true;
+  }
+
+  obstructsVision() {
     return true;
   }
 
@@ -175,7 +183,11 @@ export class LadderPickup {
     return true;
   }
 
-  isObstructive() {
+  blocksMovement() {
+    return true;
+  }
+
+  obstructsVision() {
     return false;
   }
 
@@ -217,7 +229,11 @@ export class ThrallPickup {
     return true;
   }
 
-  isObstructive() {
+  blocksMovement() {
+    return true;
+  }
+
+  obstructsVision() {
     return false;
   }
 
@@ -263,7 +279,11 @@ export class ThrallPosterPickup {
     return true;
   }
 
-  isObstructive() {
+  blocksMovement() {
+    return true;
+  }
+
+  obstructsVision() {
     return false;
   }
 
@@ -310,7 +330,11 @@ export class ThrallRecruitedPickup {
     return !this.bitten;
   }
 
-  isObstructive() {
+  blocksMovement() {
+    return true;
+  }
+
+  obstructsVision() {
     return false;
   }
 
@@ -425,7 +449,11 @@ export class ThrallCollectionPlatePickup {
     return !this.rewarded;
   }
 
-  isObstructive() {
+  blocksMovement() {
+    return false;
+  }
+
+  obstructsVision() {
     return false;
   }
 
@@ -530,7 +558,10 @@ export class ThrallItemPickup {
     return true;
   }
 
-  isObstructive() {
+  blocksMovement() {
+    return true;
+  }
+  obstructsVision() {
     return false;
   }