First Commit

src/core/TerrainMapLoader.ts

@@ -0,0 +1,25 @@
+import {Jimp as JimpType, JimpConstructors} from '@jimp/core';
+import 'jimp';
+import {TerrainMap, TerrainType, TerrainTypes} from './Game';
+import {TerrainMapImpl} from './GameImpl';
+
+declare const Jimp: JimpType & JimpConstructors;
+
+export async function loadTerrainMap(): Promise<TerrainMap> {
+    const imageModule = await import(`../../resources/maps/World.png`);
+    const imageUrl = imageModule.default;
+    const image = await Jimp.read(imageUrl)
+    const {width, height} = image.bitmap;
+
+    const terrain: TerrainType[][] = Array(width).fill(null).map(() => Array(height).fill(TerrainTypes.Water));
+
+    image.scan(0, 0, width, height, function (x: number, y: number, idx: number) {
+        const red = this.bitmap.data[idx + 0];
+
+        if (red > 100) {
+            terrain[x][y] = TerrainTypes.Land;
+        }
+    })
+
+    return new TerrainMapImpl(terrain);
+}