diff --git a/src/core/GameImpl.ts b/src/core/GameImpl.ts
index 429b88ea4..86706765a 100644
--- a/src/core/GameImpl.ts
+++ b/src/core/GameImpl.ts
@@ -190,22 +190,6 @@ class TerraNulliusImpl implements TerraNullius {
 
 }
 
-export class TerrainMapImpl implements TerrainMap {
-
-    constructor(public readonly tiles: TerrainType[][]) { }
-
-    terrain(cell: Cell): TerrainType {
-        return this.tiles[cell.x][cell.y]
-    }
-
-    width(): number {
-        return this.tiles.length
-    }
-
-    height(): number {
-        return this.tiles[0].length
-    }
-}
 
 export class GameImpl implements MutableGame {
     private ticks = 0
diff --git a/src/core/TerrainMapLoader.ts b/src/core/TerrainMapLoader.ts
index 578e71afe..7ba7c1701 100644
--- a/src/core/TerrainMapLoader.ts
+++ b/src/core/TerrainMapLoader.ts
@@ -1,12 +1,28 @@
 import {Jimp as JimpType, JimpConstructors} from '@jimp/core';
 import 'jimp';
-import {TerrainMapImpl} from './GameImpl';
 import {TerrainTile} from '../../generated/protos';
 import {Cell} from './Game';
 
 declare const Jimp: JimpType & JimpConstructors;
 
 
+export class TerrainMap {
+
+    constructor(public readonly tiles: TerrainType[][]) { }
+
+    terrain(cell: Cell): TerrainType {
+        return this.tiles[cell.x][cell.y]
+    }
+
+    width(): number {
+        return this.tiles.length
+    }
+
+    height(): number {
+        return this.tiles[0].length
+    }
+}
+
 // TODO: make terrain api better.
 export class Terrain {
     constructor(
@@ -22,12 +38,6 @@ export const TerrainTypes = {
     Water: new Terrain(0, 0)
 }
 
-export interface TerrainMap {
-    terrain(cell: Cell): Terrain
-    width(): number
-    height(): number
-}
-
 export async function loadTerrainMap(): Promise<TerrainMap> {
     const imageModule = await import(`../../resources/maps/World.png`);
     const imageUrl = imageModule.default;
@@ -45,5 +55,5 @@ export async function loadTerrainMap(): Promise<TerrainMap> {
         }
     })
 
-    return new TerrainMapImpl(terrain);
+    return new TerrainMap(terrain);
 }
\ No newline at end of file