Randomly generate large track loop with multiple curves in Track exploration scene
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Peter Stockings
@@ -8,8 +8,9 @@ export class TrackExplorationScene extends Phaser.Scene {
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}
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private tracks: Set<string> = new Set();
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private trackSprites: Phaser.GameObjects.Sprite[] = [];
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private cart?: Phaser.GameObjects.Sprite;
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private cartPos = { x: 5, y: 5 };
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private cartPos = { x: 0, y: 0 };
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private cartDir = { dx: 1, dy: 0 };
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private moveTimer?: Phaser.Time.TimerEvent;
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@@ -30,29 +31,28 @@ export class TrackExplorationScene extends Phaser.Scene {
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this.scene.start("MenuScene");
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});
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// Silence lint warning if needed
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backBtn.setAlpha(0.8);
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// Create a smaller track loop to test all corners clearly
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const startX = 5;
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const startY = 5;
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const size = 5; // 5x5 loop
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for (let x = startX; x < startX + size; x++) {
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this.tracks.add(`${x},${startY}`);
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this.tracks.add(`${x},${startY + size - 1}`);
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}
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for (let y = startY + 1; y < startY + size - 1; y++) {
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this.tracks.add(`${startX},${y}`);
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this.tracks.add(`${startX + size - 1},${y}`);
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}
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const regenBtn = this.add.text(width / 2, height - 70, "REGENERATE LOOP", {
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fontSize: "24px",
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color: "#00ff88"
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}).setOrigin(0.5)
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.setInteractive({ useHandCursor: true })
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.on("pointerdown", () => {
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this.generateRandomLoop();
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});
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regenBtn.setAlpha(0.8);
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// Render tracks
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this.renderTracks();
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// Initial generation
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this.generateRandomLoop();
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// Add Mine Cart
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const { mineCarts } = GAME_CONFIG.rendering;
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this.cart = this.add.sprite(5 * 32 + 16, 5 * 32 + 16, "kennys_dungeon", mineCarts.horizontal);
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this.cart.setScale(2); // Make it visible
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this.cart = this.add.sprite(0, 0, "kennys_dungeon", mineCarts.horizontal);
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this.cart.setScale(2);
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this.cart.setDepth(10);
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this.resetCart();
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// Movement Loop
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this.moveTimer = this.time.addEvent({
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@@ -67,17 +67,131 @@ export class TrackExplorationScene extends Phaser.Scene {
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});
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}
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private generateRandomLoop() {
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// Clear existing
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this.trackSprites.forEach(s => s.destroy());
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this.trackSprites = [];
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this.tracks.clear();
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// Start with a 6x6 rectangle
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const startX = 6;
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const startY = 6;
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const initialSize = 15;
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for (let x = startX; x < startX + initialSize; x++) {
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this.tracks.add(`${x},${startY}`);
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this.tracks.add(`${x},${startY + initialSize - 1}`);
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}
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for (let y = startY + 1; y < startY + initialSize - 1; y++) {
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this.tracks.add(`${startX},${y}`);
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this.tracks.add(`${startX + initialSize - 1},${y}`);
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}
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// Apply "perturbations" to create curves
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for (let i = 0; i < 100; i++) {
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this.expandLoop();
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}
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this.renderTracks();
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this.resetCart();
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}
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private expandLoop() {
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const trackArray = Array.from(this.tracks);
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const posKey = trackArray[Math.floor(Math.random() * trackArray.length)];
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const [x, y] = posKey.split(',').map(Number);
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const directions = [
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{ dx: 1, dy: 0 }, { dx: -1, dy: 0 },
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{ dx: 0, dy: 1 }, { dx: 0, dy: -1 }
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];
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for (const dir of directions) {
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const isH = this.tracks.has(`${x-1},${y}`) && this.tracks.has(`${x+1},${y}`);
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const isV = this.tracks.has(`${x},${y-1}`) && this.tracks.has(`${x},${y+1}`);
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if (isH && !isV && Math.abs(dir.dy) === 1) {
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const ny = y + dir.dy;
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const newTiles = [`${x-1},${ny}`, `${x},${ny}`, `${x+1},${ny}`];
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if (newTiles.some(k => this.tracks.has(k))) continue;
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const tempTracks = new Set(this.tracks);
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tempTracks.delete(`${x},${y}`);
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newTiles.forEach(k => tempTracks.add(k));
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// Check rule: Every modified/new tile must have exactly 2 neighbors
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const affected = [...newTiles, `${x-1},${y}`, `${x+1},${y}`];
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const isValid = affected.every(posKey => {
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const [px, py] = posKey.split(',').map(Number);
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const count = [[px+1,py],[px-1,py],[px,py+1],[px,py-1]]
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.filter(([nx, ny]) => tempTracks.has(`${nx},${ny}`)).length;
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return count === 2;
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});
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if (isValid) {
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this.tracks = tempTracks;
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return;
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}
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}
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if (isV && !isH && Math.abs(dir.dx) === 1) {
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const nx = x + dir.dx;
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const newTiles = [`${nx},${y-1}`, `${nx},${y}`, `${nx},${y+1}`];
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if (newTiles.some(k => this.tracks.has(k))) continue;
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const tempTracks = new Set(this.tracks);
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tempTracks.delete(`${x},${y}`);
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newTiles.forEach(k => tempTracks.add(k));
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const affected = [...newTiles, `${x},${y-1}`, `${x},${y+1}`];
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const isValid = affected.every(posKey => {
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const [px, py] = posKey.split(',').map(Number);
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const count = [[px+1,py],[px-1,py],[px,py+1],[px,py-1]]
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.filter(([nx, ny]) => tempTracks.has(`${nx},${ny}`)).length;
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return count === 2;
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});
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if (isValid) {
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this.tracks = tempTracks;
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return;
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}
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}
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}
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}
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private resetCart() {
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if (!this.cart) return;
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const first = Array.from(this.tracks)[0];
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const [x, y] = first.split(',').map(Number);
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this.cartPos = { x, y };
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this.cart.setPosition(x * 32 + 16, y * 32 + 16);
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// Find a valid initial direction
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const neighbors = [
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{ dx: 1, dy: 0 }, { dx: -1, dy: 0 },
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{ dx: 0, dy: 1 }, { dx: 0, dy: -1 }
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];
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for (const n of neighbors) {
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if (this.tracks.has(`${x + n.dx},${y + n.dy}`)) {
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this.cartDir = { dx: n.dx, dy: n.dy };
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break;
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}
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}
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}
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private renderTracks() {
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this.tracks.forEach(posKey => {
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const [x, y] = posKey.split(',').map(Number);
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const connections = TrackSystem.getConnectionsFromNeighbors(x, y, (nx: number, ny: number) => this.tracks.has(`${nx},${ny}`));
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const frame = TrackSystem.getTrackFrame(connections);
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this.add.sprite(x * 32 + 16, y * 32 + 16, "kennys_dungeon", frame).setScale(2);
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const sprite = this.add.sprite(x * 32 + 16, y * 32 + 16, "kennys_dungeon", frame).setScale(2);
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this.trackSprites.push(sprite);
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});
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}
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private moveCart() {
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if (!this.cart) return;
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if (!this.cart || this.tracks.size === 0) return;
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const next = MineCartSystem.getNextPosition(this.cartPos, this.cartDir.dx, this.cartDir.dy, (nx: number, ny: number) => this.tracks.has(`${nx},${ny}`));
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