feat(editor): improve level preview and auto-calculate time limits

- Fix terrain preview aspect ratio to match in-game rendering by using
  consistent X/Y scaling, preventing slopes from appearing distorted
- Calculate timeLimit automatically based on level length and pace
  (TIME_LIMIT_PACE) to ensure consistent difficulty scaling across levels
- Add max-height and vertical scrolling to the level preview panel
- Generate level02 (The Big Jump) from the editor with manual tweak
This commit is contained in:
Brian Fertig 2026-08-20 12:38:21 -06:00
parent 7f4c632cce
commit ef47daea6d
5 changed files with 286 additions and 26 deletions

View File

@ -174,6 +174,8 @@
}
#preview-scroll {
overflow-x: auto;
overflow-y: auto;
max-height: 640px;
border: 1px solid #232c40;
border-radius: 4px;
background: #0b0e14;

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@ -1,25 +1,260 @@
import { generateWave, withRamp } from './terrainHelpers.js';
import { WORLD_SCALE } from '../../config.js';
const RUNWAY_END_X = 1850 * WORLD_SCALE;
const LANDING_START_X = 2200 * WORLD_SCALE;
const END_X = 3900 * WORLD_SCALE;
const runway = generateWave(-200 * WORLD_SCALE, RUNWAY_END_X, 60 * WORLD_SCALE, 420 * WORLD_SCALE, 10 * WORLD_SCALE, 500 * WORLD_SCALE);
withRamp(runway, 1500 * WORLD_SCALE, RUNWAY_END_X, -170 * WORLD_SCALE); // launch ramp climbing up to the jump-off edge
const landing = generateWave(LANDING_START_X, END_X, 80 * WORLD_SCALE, 460 * WORLD_SCALE, 15 * WORLD_SCALE, 400 * WORLD_SCALE);
// Generated by editor.html - review before dropping into src/data/levels/.
export default {
id: 'level02',
name: 'Big Air',
description: 'Clear the gap and land level, or the kids pay for it.',
id: "level02",
name: "The Big Jump",
description: "Make the Jump or the kids pay!",
kidsAboard: 3,
timeLimit: 20,
startPosition: { x: 100 * WORLD_SCALE, y: 350 * WORLD_SCALE },
timeLimit: 41,
startPosition: { x: 200, y: 700 },
startAngle: 0,
terrain: [{ points: runway }, { points: landing }],
terrain: [
{ points: [
{ x: -400, y: 840 },
{ x: -330, y: 840 },
{ x: -260, y: 840 },
{ x: -190, y: 840 },
{ x: -120, y: 840 },
{ x: -50, y: 840 },
{ x: 20, y: 840 },
{ x: 90, y: 840 },
{ x: 160, y: 840 },
{ x: 230, y: 840 },
{ x: 300, y: 840 },
{ x: 370, y: 840 },
{ x: 440, y: 840 },
{ x: 510, y: 840 },
{ x: 580, y: 840 },
{ x: 650, y: 840 },
{ x: 720, y: 840 },
{ x: 790, y: 840 },
{ x: 860, y: 840 },
{ x: 930, y: 840 },
{ x: 1000, y: 840 },
{ x: 1070, y: 838 },
{ x: 1140, y: 834 },
{ x: 1210, y: 830 },
{ x: 1280, y: 822 },
{ x: 1350, y: 812 },
{ x: 1420, y: 802 },
{ x: 1490, y: 790 },
{ x: 1560, y: 776 },
{ x: 1630, y: 764 },
{ x: 1700, y: 750 },
{ x: 1770, y: 736 },
{ x: 1840, y: 724 },
{ x: 1910, y: 710 },
{ x: 1980, y: 698 },
{ x: 2050, y: 688 },
{ x: 2120, y: 678 },
{ x: 2190, y: 670 },
{ x: 2260, y: 666 },
{ x: 2330, y: 662 },
{ x: 2400, y: 660 },
{ x: 2470, y: 658 },
{ x: 2540, y: 654 },
{ x: 2610, y: 650 },
{ x: 2680, y: 642 },
{ x: 2750, y: 632 },
{ x: 2820, y: 622 },
{ x: 2890, y: 610 },
{ x: 2960, y: 596 },
{ x: 3030, y: 584 },
{ x: 3100, y: 570 },
{ x: 3170, y: 556 },
{ x: 3240, y: 544 },
{ x: 3310, y: 530 },
{ x: 3380, y: 518 },
{ x: 3450, y: 508 },
{ x: 3520, y: 498 },
{ x: 3590, y: 490 },
{ x: 3660, y: 486 },
{ x: 3730, y: 482 },
{ x: 3800, y: 480 },
{ x: 3870, y: 464 },
{ x: 3940, y: 448 },
{ x: 4010, y: 432 },
{ x: 4080, y: 416 },
{ x: 4150, y: 400 },
{ x: 4220, y: 384 },
{ x: 4290, y: 368 },
{ x: 4360, y: 352 },
{ x: 4430, y: 336 },
{ x: 4500, y: 320 },
{ x: 4570, y: 304 },
{ x: 4640, y: 288 },
{ x: 4710, y: 272 },
{ x: 4780, y: 256 },
{ x: 4850, y: 240 },
{ x: 4920, y: 224 },
{ x: 4990, y: 208 },
{ x: 5060, y: 192 },
{ x: 5130, y: 176 },
{ x: 5200, y: 160 },
{ x: 5270, y: 144 },
{ x: 5340, y: 126 },
{ x: 5410, y: 104 },
{ x: 5480, y: 80 },
{ x: 5550, y: 52 },
{ x: 5620, y: 22 },
{ x: 5690, y: -8 },
{ x: 5760, y: -40 },
{ x: 5830, y: -70 },
{ x: 5900, y: -100 },
{ x: 5970, y: -130 },
{ x: 6040, y: -160 },
{ x: 6110, y: -192 },
{ x: 6180, y: -222 },
{ x: 6250, y: -252 },
{ x: 6320, y: -282 },
{ x: 6390, y: -312 },
{ x: 6460, y: -344 },
{ x: 6530, y: -374 },
{ x: 6600, y: -404 },
{ x: 6670, y: -434 },
{ x: 6740, y: -466 },
{ x: 6810, y: -498 },
{ x: 6880, y: -530 },
{ x: 6950, y: -566 },
{ x: 7020, y: -602 },
{ x: 7090, y: -638 },
{ x: 7160, y: -674 },
{ x: 7230, y: -712 },
{ x: 7300, y: -742 },
{ x: 7356, y: -742 },
] },
{ points: [
{ x: 7776, y: -612 },
{ x: 7846, y: -600 },
{ x: 7916, y: -572 },
{ x: 7986, y: -534 },
{ x: 8056, y: -490 },
{ x: 8126, y: -450 },
{ x: 8196, y: -418 },
{ x: 8266, y: -404 },
{ x: 8280, y: -404 },
{ x: 8350, y: -370 },
{ x: 8420, y: -336 },
{ x: 8490, y: -302 },
{ x: 8560, y: -268 },
{ x: 8630, y: -236 },
{ x: 8700, y: -202 },
{ x: 8770, y: -168 },
{ x: 8840, y: -134 },
{ x: 8910, y: -100 },
{ x: 8980, y: -68 },
{ x: 9050, y: -34 },
{ x: 9120, y: 0 },
{ x: 9190, y: 34 },
{ x: 9260, y: 68 },
{ x: 9330, y: 100 },
{ x: 9400, y: 134 },
{ x: 9470, y: 168 },
{ x: 9540, y: 202 },
{ x: 9610, y: 236 },
{ x: 9680, y: 268 },
{ x: 9750, y: 296 },
{ x: 9820, y: 322 },
{ x: 9890, y: 342 },
{ x: 9960, y: 354 },
{ x: 10030, y: 358 },
{ x: 10100, y: 354 },
{ x: 10170, y: 342 },
{ x: 10240, y: 322 },
{ x: 10310, y: 296 },
{ x: 10380, y: 268 },
{ x: 10450, y: 240 },
{ x: 10520, y: 216 },
{ x: 10590, y: 196 },
{ x: 10660, y: 184 },
{ x: 10730, y: 178 },
{ x: 10800, y: 184 },
{ x: 10870, y: 196 },
{ x: 10940, y: 216 },
{ x: 11010, y: 240 },
{ x: 11080, y: 268 },
{ x: 11150, y: 312 },
{ x: 11220, y: 350 },
{ x: 11290, y: 382 },
{ x: 11360, y: 402 },
{ x: 11430, y: 408 },
{ x: 11500, y: 402 },
{ x: 11570, y: 382 },
{ x: 11640, y: 350 },
{ x: 11710, y: 312 },
{ x: 11780, y: 268 },
{ x: 11850, y: 226 },
{ x: 11920, y: 186 },
{ x: 11990, y: 156 },
{ x: 12060, y: 136 },
{ x: 12130, y: 130 },
{ x: 12200, y: 136 },
{ x: 12270, y: 156 },
{ x: 12340, y: 186 },
{ x: 12410, y: 226 },
{ x: 12480, y: 268 },
{ x: 12550, y: 328 },
{ x: 12620, y: 382 },
{ x: 12690, y: 426 },
{ x: 12760, y: 452 },
{ x: 12830, y: 462 },
{ x: 12900, y: 452 },
{ x: 12970, y: 426 },
{ x: 13040, y: 382 },
{ x: 13110, y: 328 },
{ x: 13180, y: 268 },
{ x: 13250, y: 208 },
{ x: 13320, y: 154 },
{ x: 13390, y: 112 },
{ x: 13460, y: 84 },
{ x: 13530, y: 76 },
{ x: 13600, y: 84 },
{ x: 13670, y: 112 },
{ x: 13740, y: 154 },
{ x: 13810, y: 208 },
{ x: 13880, y: 268 },
{ x: 13950, y: 326 },
{ x: 14020, y: 376 },
{ x: 14090, y: 418 },
{ x: 14160, y: 448 },
{ x: 14230, y: 470 },
{ x: 14300, y: 488 },
{ x: 14370, y: 504 },
{ x: 14440, y: 520 },
{ x: 14510, y: 536 },
{ x: 14580, y: 552 },
{ x: 14650, y: 568 },
{ x: 14720, y: 584 },
{ x: 14790, y: 600 },
{ x: 14860, y: 616 },
{ x: 14930, y: 632 },
{ x: 15000, y: 648 },
{ x: 15070, y: 664 },
{ x: 15140, y: 680 },
{ x: 15210, y: 696 },
{ x: 15280, y: 712 },
{ x: 15350, y: 712 },
{ x: 15420, y: 712 },
{ x: 15490, y: 712 },
{ x: 15560, y: 712 },
{ x: 15630, y: 712 },
{ x: 15700, y: 712 },
{ x: 15770, y: 712 },
{ x: 15840, y: 712 },
{ x: 15910, y: 712 },
{ x: 15980, y: 712 },
{ x: 16050, y: 712 },
{ x: 16120, y: 712 },
{ x: 16190, y: 712 },
{ x: 16260, y: 712 },
{ x: 16330, y: 712 },
{ x: 16400, y: 712 },
{ x: 16470, y: 712 },
{ x: 16540, y: 712 },
{ x: 16610, y: 712 },
{ x: 16680, y: 712 },
] },
],
obstacles: [],
goal: { x: END_X - 120 * WORLD_SCALE, y: 340 * WORLD_SCALE, width: 140 * WORLD_SCALE, height: 320 * WORLD_SCALE },
cameraBounds: { x: -300 * WORLD_SCALE, y: 0, width: END_X + 700 * WORLD_SCALE, height: 1000 * WORLD_SCALE },
goal: { x: 16440, y: 472, width: 280, height: 640 },
cameraBounds: { x: -600, y: -1542, width: 18080, height: 3182 },
};

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@ -28,6 +28,7 @@ export function exportLevelToSource(levelData) {
` name: ${JSON.stringify(levelData.name)},`,
` description: ${JSON.stringify(levelData.description)},`,
` kidsAboard: ${levelData.kidsAboard},`,
` timeLimit: ${levelData.timeLimit},`,
` startPosition: { x: ${levelData.startPosition.x}, y: ${levelData.startPosition.y} },`,
` startAngle: ${levelData.startAngle},`,
` terrain: ${terrainLiteral(levelData.terrain)},`,

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@ -26,6 +26,17 @@ const CAMERA_RIGHT_MARGIN = 700;
const CAMERA_VERTICAL_PADDING = 400;
const CAMERA_MIN_HEIGHT = 1000;
// PlayScene reads level.timeLimit directly with no fallback (see
// PlayScene._updateTimer) - a level missing it entirely counts down from
// `undefined`, which never satisfies <= 0, so the level can simply never
// time out and the HUD clock reads "NaN:NaN". Auto-deriving it from the
// level's own start-to-goal distance means every exported level always has
// one, tuned by playtesting to a pace matching level01/03/04's
// hand-authored limits (~380-420 scaled units/sec each) rather than a flat
// number that wouldn't scale with track length.
const TIME_LIMIT_PACE = 400; // scaled world-units of track per second
const TIME_LIMIT_MIN = 15;
function scalePoint(p) {
return { x: Math.round(p.x * WORLD_SCALE), y: Math.round(p.y * WORLD_SCALE) };
}
@ -197,6 +208,10 @@ export function buildLevelData(sections, metadata) {
const endX = Math.round(baseX * WORLD_SCALE);
const groundYAtEnd = Math.round(baseY * WORLD_SCALE);
const spawnX = Math.round(BUS_SPAWN_X * WORLD_SCALE);
const goalX = endX - Math.round(GOAL_END_MARGIN * WORLD_SCALE);
const timeLimit = Math.max(TIME_LIMIT_MIN, Math.round((goalX - spawnX) / TIME_LIMIT_PACE));
let minTerrainY = Infinity;
let maxTerrainY = -Infinity;
for (const segment of terrainSegments) {
@ -218,15 +233,16 @@ export function buildLevelData(sections, metadata) {
name: metadata.name,
description: metadata.description,
kidsAboard: metadata.kidsAboard,
timeLimit,
startPosition: {
x: Math.round(BUS_SPAWN_X * WORLD_SCALE),
x: spawnX,
y: Math.round((INITIAL_GROUND_Y - BUS_SPAWN_DROP) * WORLD_SCALE),
},
startAngle: 0,
terrain: terrainSegments,
obstacles: [],
goal: {
x: endX - Math.round(GOAL_END_MARGIN * WORLD_SCALE),
x: goalX,
y: groundYAtEnd - Math.round(GOAL_HEIGHT_OFFSET * WORLD_SCALE),
width: Math.round(GOAL_WIDTH * WORLD_SCALE),
height: Math.round(GOAL_HEIGHT * WORLD_SCALE),

View File

@ -224,7 +224,7 @@ removeBtn.addEventListener('click', () => {
const PADDING = 40;
const H_PX_PER_UNIT = 0.12;
const CANVAS_HEIGHT = 460;
const MIN_CANVAS_HEIGHT = 260;
function computeBounds(levelData) {
let minX = Infinity;
@ -251,14 +251,20 @@ function drawPreview(levelData) {
const contentWidth = Math.max(1, maxX - minX);
const contentHeight = Math.max(1, maxY - minY);
// One scale factor for both axes - the actual game (Terrain.js) always
// scales X and Y identically (everything just multiplies by WORLD_SCALE),
// so fitting height to a fixed canvas box with its own independently
// derived vertical scale (the old behavior) stretched or squashed every
// incline/hill relative to how it actually plays. Height now just follows
// from content height at the same scale, with a floor so a nearly-flat
// level doesn't render as a sliver.
const width = Math.max(600, Math.round(contentWidth * H_PX_PER_UNIT) + PADDING * 2);
const height = CANVAS_HEIGHT;
const height = Math.max(MIN_CANVAS_HEIGHT, Math.round(contentHeight * H_PX_PER_UNIT) + PADDING * 2);
previewCanvas.width = width;
previewCanvas.height = height;
const vScale = (height - PADDING * 2) / contentHeight;
const screenX = (worldX) => (worldX - minX) * H_PX_PER_UNIT + PADDING;
const screenY = (worldY) => (worldY - minY) * vScale + PADDING;
const screenY = (worldY) => (worldY - minY) * H_PX_PER_UNIT + PADDING;
const ctx = previewCanvas.getContext('2d');
ctx.fillStyle = '#0b0e14';