Multidirectional map generation

src/core/types.ts

@@ -177,6 +177,7 @@ export type Inventory = {
 export type RunState = {
   stats: Stats;
   inventory: Inventory;
+  seed: number;
   lastReloadableWeaponId?: string | null;
 };
 

src/engine/world/generator.ts

@@ -38,13 +38,13 @@ export function generateWorld(floor: number, runState: RunState): { world: World
   const height = GAME_CONFIG.map.height;
   const tiles: Tile[] = new Array(width * height).fill(TileType.WALL);
 
-  const random = seededRandom(floor * 12345);
+  const random = seededRandom(runState.seed + floor * 12345);
 
   // Create ECS World first
   const ecsWorld = new ECSWorld(); // Starts at ID 1 by default
 
   // Set ROT's RNG seed for consistent dungeon generation
-  ROT.RNG.setSeed(floor * 12345);
+  ROT.RNG.setSeed(runState.seed + floor * 12345);
 
   // Replace generateRooms call with track-first logic for mine cart mechanic
   const { rooms, trackPath } = generateTrackLevel(width, height, tiles, floor, random);
@@ -156,19 +156,52 @@ function generateTrackLevel(width: number, height: number, tiles: Tile[], _floor
 
   // 1. Generate a winding path of "Anchor Points" for rooms
   const anchors: Vec2[] = [];
-  let currA = { x: 10, y: Math.floor(height / 2) };
+  const startDir = Math.floor(random() * 4); // 0: East, 1: West, 2: South, 3: North
-  anchors.push({ ...currA });
 
-  const targetX = width - 10;
+  let currA: Vec2;
+  const margin = 10;
   const stepSize = 12;
 
-  while (currA.x < targetX) {
+  if (startDir === 0) { // East (Left to Right)
-    const nextX = currA.x + Math.floor(stepSize * (0.8 + random() * 0.4));
+    currA = { x: margin, y: margin + Math.floor(random() * (height - margin * 2)) };
-    const nextY = currA.y + Math.floor((random() - 0.5) * height * 0.6);
+  } else if (startDir === 1) { // West (Right to Left)
+    currA = { x: width - margin, y: margin + Math.floor(random() * (height - margin * 2)) };
+  } else if (startDir === 2) { // South (Top to Bottom)
+    currA = { x: margin + Math.floor(random() * (width - margin * 2)), y: margin };
+  } else { // North (Bottom to Top)
+    currA = { x: margin + Math.floor(random() * (width - margin * 2)), y: height - margin };
+  }
+
+  anchors.push({ ...currA });
+
+  const isFinished = () => {
+    if (startDir === 0) return currA.x >= width - margin;
+    if (startDir === 1) return currA.x <= margin;
+    if (startDir === 2) return currA.y >= height - margin;
+    return currA.y <= margin;
+  };
+
+  while (!isFinished()) {
+    let nextX = currA.x;
+    let nextY = currA.y;
+
+    if (startDir === 0) { // East
+      nextX += Math.floor(stepSize * (0.8 + random() * 0.4));
+      nextY += Math.floor((random() - 0.5) * height * 0.4);
+    } else if (startDir === 1) { // West
+      nextX -= Math.floor(stepSize * (0.8 + random() * 0.4));
+      nextY += Math.floor((random() - 0.5) * height * 0.4);
+    } else if (startDir === 2) { // South
+      nextY += Math.floor(stepSize * (0.8 + random() * 0.4));
+      nextX += Math.floor((random() - 0.5) * width * 0.4);
+    } else { // North
+      nextY -= Math.floor(stepSize * (0.8 + random() * 0.4));
+      nextX += Math.floor((random() - 0.5) * width * 0.4);
+    }
 
     currA = {
-      x: Math.min(width - 5, nextX),
+      x: Math.max(margin / 2, Math.min(width - margin / 2, nextX)),
-      y: Math.max(5, Math.min(height - 5, nextY))
+      y: Math.max(margin / 2, Math.min(height - margin / 2, nextY))
     };
     anchors.push({ ...currA });
   }

src/scenes/GameScene.ts

@@ -50,6 +50,7 @@ export class GameScene extends Phaser.Scene {
   public runState: RunState = {
     stats: { ...GAME_CONFIG.player.initialStats },
     inventory: { gold: 0, items: [] },
+    seed: Math.floor(Math.random() * 1000000),
     lastReloadableWeaponId: null
   };
 
@@ -478,6 +479,7 @@ export class GameScene extends Phaser.Scene {
     this.runState = {
       stats: { ...p.stats },
       inventory: { gold: p.inventory.gold, items: [...p.inventory.items] },
+      seed: this.runState.seed,
       lastReloadableWeaponId: this.runState.lastReloadableWeaponId
     };
   }
@@ -486,6 +488,7 @@ export class GameScene extends Phaser.Scene {
     this.runState = {
       stats: { ...GAME_CONFIG.player.initialStats },
       inventory: { gold: 0, items: [] },
+      seed: Math.floor(Math.random() * 1000000),
       lastReloadableWeaponId: null
     };
     this.floorIndex = 1;