merge state debug dumper

src/mapgen.ts

@@ -89,6 +89,72 @@ class Knife {
       }
     }
   }
+
+  showDebug(merged: Record<number, number>) {
+    if (true) {
+      let out = "";
+      let errors: string[] = [];
+      const size = this.#regions.size;
+      for (let y = 0; y < size.h; y++) {
+        for (let x = 0; x < size.w; x++) {
+          const loc = new Point(x, y);
+          out += (() => {
+            if (this.#sealedWalls.get(loc)) {
+              return "█";
+            }
+            if (this.#map.get(loc).architecture == Architecture.Wall) {
+              return "#";
+            }
+            let r = this.#regions.get(loc);
+            if(typeof r === "number") {
+              const resolved = merged[r];
+              if (typeof resolved === "number") {
+                r = resolved;
+              } else {
+                errors.push(`${loc} is region ${r}, not found in merged`)
+              }
+              // 0...9 and lowercase
+              if (r < 36) {
+                return r.toString(36)
+              }
+              // uppercase
+              r -= 26;
+              if (r < 36) {
+                return r.toString(36).toUpperCase()
+              }
+              // Greek lowercase
+              r -= 36;
+              if (r < 25) {
+                return String.fromCodePoint(r + 0x3b1);
+              }
+              // Greek uppercase (there is a hole at 0x3a2)
+              r -= 25;
+              if (r < 17) {
+                return String.fromCodePoint(r + 0x391);
+              }
+              r -= 17;
+              if (r < 7) {
+                return String.fromCodePoint(r + 0x3a3);
+              }
+              // Hebrew
+              r -= 7
+              if (r < 27) {
+                return String.fromCodePoint(r+0x5d0);
+              }
+              // give up
+              return "?"
+            }
+            return ".";  // room without region
+          })();
+        }
+        out += "\n";
+      }
+      console.log(out);
+      if (errors.length > 0) {
+        console.log(`uh-oh: \n\t${errors.join("\n\t")}`);
+      }
+    }
+  }
 }
 
 export function generateMap(): LoadedNewMap {