diff --git a/lib/index.d.ts b/lib/index.d.ts
index 17c1ae5..b78fa76 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -600,9 +600,13 @@ export class Sound {
   stop(): void;
 }
 
-interface NumericalEntity {pos: Coordinates, w: number, h: number}
+interface NumericalEntityBase {pos: Coordinates}
+interface NumericalSprite {w: number, h: number}
+interface NumericalTileSprite {tileW: number, tileH: number}
 
-interface NumericalEntityWithHitbox extends NumericalEntity {hitBox: NumericalEntity}
+type NumericalEntity = NumericalSprite | NumericalTileSprite
+
+type NumericalEntityWithHitbox = {hitBox: NumericalEntity} & NumericalEntity
 
 export namespace deadInTracks {
   /**
@@ -646,7 +650,7 @@ export namespace entity {
    * @param container The container.
    * @param hitCallback The callback that is executed when an entity hits something in the container.
    */
-  export function hits(entity: NumericalEntityWithHitbox | NumericalEntity, container: Container<NumericalEntityWithHitbox | NumericalEntity>, hitCallback: (e2: NumericalEntityWithHitbox | NumericalEntity) => any): void;
+  export function hits<T extends NumericalEntityWithHitbox | NumericalEntity>(entity: NumericalEntityWithHitbox | NumericalEntity, container: Container<T>, hitCallback: (e2: T) => any): void;
 
   /**
    * This functions calculates whether two entities hit each other.
diff --git a/lib/utilities/entity.js b/lib/utilities/entity.js
index 67c2aaa..736f758 100644
--- a/lib/utilities/entity.js
+++ b/lib/utilities/entity.js
@@ -20,7 +20,16 @@ function angle(a, b) {
 }
 
 function bounds(entity) {
-	const { w, h, pos, hitBox } = entity;
+	let pos, w, h, hitBox;
+	// Object.prototype.hasOwnProperty.call is needed because of eslint
+	if (Object.prototype.hasOwnProperty.call(entity, "tileW") && Object.prototype.hasOwnProperty.call(entity, "tileH")) {
+		({pos, w, h} = {pos: entity.pos, w: entity.tileW, h: entity.tileH});
+	} else {
+		({pos, w, h} = entity);
+	}
+
+	if (entity.hitBox) hitBox = entity.hitBox;
+
 	const hit = hitBox || { x: 0, y: 0, w, h };
 	return {
 		x: hit.x + pos.x,
@@ -31,7 +40,15 @@ function bounds(entity) {
 }
 
 function center(entity) {
-	const { pos, w, h } = entity;
+	let pos, w, h;
+
+	// Object.prototype.hasOwnProperty.call is needed because of eslint
+	if (Object.prototype.hasOwnProperty.call(entity, "tileW") && Object.prototype.hasOwnProperty.call(entity, "tileH")) {
+		({pos, w, h} = {pos: entity.pos, w: entity.tileW, h: entity.tileH});
+	} else {
+		({pos, w, h} = entity);
+	}
+	
 	return {
 		x: pos.x + w / 2,
 		y: pos.y + h / 2