1534 lines
45 KiB
JavaScript
1534 lines
45 KiB
JavaScript
(() => {
|
|
// https://git.cyborggrizzly.com/emma/doodler/raw/tag/0.1.1/geometry/constants.ts
|
|
var Constants = {
|
|
TWO_PI: Math.PI * 2
|
|
};
|
|
|
|
// https://git.cyborggrizzly.com/emma/doodler/raw/tag/0.1.1/geometry/vector.ts
|
|
var Vector = class _Vector {
|
|
x;
|
|
y;
|
|
z;
|
|
constructor(x = 0, y = 0, z = 0) {
|
|
if (typeof x === "number") {
|
|
this.x = x;
|
|
this.y = y;
|
|
this.z = z;
|
|
} else {
|
|
this.x = x.x;
|
|
this.y = x.y || y;
|
|
this.z = x.z || z;
|
|
}
|
|
}
|
|
set(v, y, z) {
|
|
if (arguments.length === 1 && typeof v !== "number") {
|
|
this.set(
|
|
v.x || v[0] || 0,
|
|
v.y || v[1] || 0,
|
|
v.z || v[2] || 0
|
|
);
|
|
} else {
|
|
this.x = v;
|
|
this.y = y || 0;
|
|
this.z = z || 0;
|
|
}
|
|
}
|
|
get() {
|
|
return new _Vector(this.x, this.y, this.z);
|
|
}
|
|
mag() {
|
|
const x = this.x, y = this.y, z = this.z;
|
|
return Math.sqrt(x * x + y * y + z * z);
|
|
}
|
|
magSq() {
|
|
const x = this.x, y = this.y, z = this.z;
|
|
return x * x + y * y + z * z;
|
|
}
|
|
setMag(v_or_len, len) {
|
|
if (len === void 0) {
|
|
len = v_or_len;
|
|
this.normalize();
|
|
this.mult(len);
|
|
} else {
|
|
const v = v_or_len;
|
|
v.normalize();
|
|
v.mult(len);
|
|
return v;
|
|
}
|
|
}
|
|
add(v, y, z) {
|
|
if (arguments.length === 1 && typeof v !== "number") {
|
|
this.x += v.x;
|
|
this.y += v.y;
|
|
this.z += v.z;
|
|
} else if (arguments.length === 2) {
|
|
this.x += v;
|
|
this.y += y ?? 0;
|
|
} else {
|
|
this.x += v;
|
|
this.y += y ?? 0;
|
|
this.z += z ?? 0;
|
|
}
|
|
return this;
|
|
}
|
|
sub(v, y, z) {
|
|
if (arguments.length === 1 && typeof v !== "number") {
|
|
this.x -= v.x;
|
|
this.y -= v.y;
|
|
this.z -= v.z || 0;
|
|
} else if (arguments.length === 2) {
|
|
this.x -= v;
|
|
this.y -= y ?? 0;
|
|
} else {
|
|
this.x -= v;
|
|
this.y -= y ?? 0;
|
|
this.z -= z ?? 0;
|
|
}
|
|
return this;
|
|
}
|
|
mult(v) {
|
|
if (typeof v === "number") {
|
|
this.x *= v;
|
|
this.y *= v;
|
|
this.z *= v;
|
|
} else {
|
|
this.x *= v.x;
|
|
this.y *= v.y;
|
|
this.z *= v.z;
|
|
}
|
|
return this;
|
|
}
|
|
div(v) {
|
|
if (typeof v === "number") {
|
|
this.x /= v;
|
|
this.y /= v;
|
|
this.z /= v;
|
|
} else {
|
|
this.x /= v.x;
|
|
this.y /= v.y;
|
|
this.z /= v.z;
|
|
}
|
|
return this;
|
|
}
|
|
rotate(angle) {
|
|
const prev_x = this.x;
|
|
const c = Math.cos(angle);
|
|
const s = Math.sin(angle);
|
|
this.x = c * this.x - s * this.y;
|
|
this.y = s * prev_x + c * this.y;
|
|
return this;
|
|
}
|
|
dist(v) {
|
|
const dx = this.x - v.x, dy = this.y - v.y, dz = this.z - (v.z || 0);
|
|
return Math.sqrt(dx * dx + dy * dy + dz * dz);
|
|
}
|
|
dot(v, y, z) {
|
|
if (arguments.length === 1 && typeof v !== "number") {
|
|
return this.x * v.x + this.y * v.y + this.z * v.z;
|
|
}
|
|
return this.x * v + this.y * y + this.z * z;
|
|
}
|
|
cross(v) {
|
|
const x = this.x, y = this.y, z = this.z;
|
|
return new _Vector(y * v.z - v.y * z, z * v.x - v.z * x, x * v.y - v.x * y);
|
|
}
|
|
lerp(v_or_x, amt_or_y, z, amt) {
|
|
const lerp_val = (start, stop, amt2) => {
|
|
return start + (stop - start) * amt2;
|
|
};
|
|
let x, y;
|
|
if (arguments.length === 2 && typeof v_or_x !== "number") {
|
|
amt = amt_or_y;
|
|
x = v_or_x.x;
|
|
y = v_or_x.y;
|
|
z = v_or_x.z;
|
|
} else {
|
|
x = v_or_x;
|
|
y = amt_or_y;
|
|
}
|
|
this.x = lerp_val(this.x, x, amt);
|
|
this.y = lerp_val(this.y, y, amt);
|
|
this.z = lerp_val(this.z, z, amt);
|
|
return this;
|
|
}
|
|
normalize() {
|
|
const m = this.mag();
|
|
if (m > 0) {
|
|
this.div(m);
|
|
}
|
|
return this;
|
|
}
|
|
limit(high) {
|
|
if (this.mag() > high) {
|
|
this.normalize();
|
|
this.mult(high);
|
|
}
|
|
return this;
|
|
}
|
|
heading() {
|
|
return -Math.atan2(-this.y, this.x);
|
|
}
|
|
heading2D() {
|
|
return this.heading();
|
|
}
|
|
toString() {
|
|
return "[" + this.x + ", " + this.y + ", " + this.z + "]";
|
|
}
|
|
array() {
|
|
return [this.x, this.y, this.z];
|
|
}
|
|
copy() {
|
|
return new _Vector(this.x, this.y, this.z);
|
|
}
|
|
drawDot(color) {
|
|
if (!doodler) return;
|
|
doodler.dot(this, { weight: 2, color: color || "red" });
|
|
}
|
|
draw(origin) {
|
|
if (!doodler) return;
|
|
const startPoint = origin ? new _Vector(origin) : new _Vector();
|
|
doodler.line(
|
|
startPoint,
|
|
startPoint.copy().add(this.copy().normalize().mult(100))
|
|
);
|
|
}
|
|
normal(v) {
|
|
if (!v) return new _Vector(-this.y, this.x);
|
|
const dx = v.x - this.x;
|
|
const dy = v.y - this.y;
|
|
return new _Vector(-dy, dx);
|
|
}
|
|
static fromAngle(angle, v) {
|
|
if (v === void 0 || v === null) {
|
|
v = new _Vector();
|
|
}
|
|
v.x = Math.cos(angle);
|
|
v.y = Math.sin(angle);
|
|
return v;
|
|
}
|
|
static random2D(v) {
|
|
return _Vector.fromAngle(Math.random() * (Math.PI * 2), v);
|
|
}
|
|
static random3D(v) {
|
|
const angle = Math.random() * Constants.TWO_PI;
|
|
const vz = Math.random() * 2 - 1;
|
|
const mult = Math.sqrt(1 - vz * vz);
|
|
const vx = mult * Math.cos(angle);
|
|
const vy = mult * Math.sin(angle);
|
|
if (v === void 0 || v === null) {
|
|
v = new _Vector(vx, vy, vz);
|
|
} else {
|
|
v.set(vx, vy, vz);
|
|
}
|
|
return v;
|
|
}
|
|
static dist(v1, v2) {
|
|
return v1.dist(v2);
|
|
}
|
|
static dot(v1, v2) {
|
|
return v1.dot(v2);
|
|
}
|
|
static cross(v1, v2) {
|
|
return v1.cross(v2);
|
|
}
|
|
static add(v1, v2) {
|
|
return new _Vector(v1.x + v2.x, v1.y + v2.y, v1.z + v2.z);
|
|
}
|
|
static sub(v1, v2) {
|
|
return new _Vector(v1.x - v2.x, v1.y - v2.y, v1.z - v2.z);
|
|
}
|
|
static angleBetween(v1, v2) {
|
|
return Math.acos(v1.dot(v2) / Math.sqrt(v1.magSq() * v2.magSq()));
|
|
}
|
|
static lerp(v1, v2, amt) {
|
|
const val = new _Vector(v1.x, v1.y, v1.z);
|
|
val.lerp(v2, amt);
|
|
return val;
|
|
}
|
|
static vectorProjection(v1, v2) {
|
|
v2 = v2.copy();
|
|
v2.normalize();
|
|
const sp = v1.dot(v2);
|
|
v2.mult(sp);
|
|
return v2;
|
|
}
|
|
static vectorProjectionAndDot(v1, v2) {
|
|
v2 = v2.copy();
|
|
v2.normalize();
|
|
const sp = v1.dot(v2);
|
|
v2.mult(sp);
|
|
return [v2, sp];
|
|
}
|
|
static hypot2(a, b) {
|
|
return _Vector.dot(_Vector.sub(a, b), _Vector.sub(a, b));
|
|
}
|
|
};
|
|
var OriginVector = class _OriginVector extends Vector {
|
|
origin;
|
|
get halfwayPoint() {
|
|
return {
|
|
x: this.mag() / 2 * Math.sin(this.heading()) + this.origin.x,
|
|
y: this.mag() / 2 * Math.cos(this.heading()) + this.origin.y
|
|
};
|
|
}
|
|
constructor(origin, p) {
|
|
super(p.x, p.y, p.z);
|
|
this.origin = origin;
|
|
}
|
|
static from(origin, p) {
|
|
const v = {
|
|
x: p.x - origin.x,
|
|
y: p.y - origin.y
|
|
};
|
|
return new _OriginVector(origin, v);
|
|
}
|
|
};
|
|
|
|
// https://git.cyborggrizzly.com/emma/doodler/raw/tag/0.1.1/canvas.ts
|
|
var Doodler = class {
|
|
ctx;
|
|
_canvas;
|
|
layers = [];
|
|
bg;
|
|
framerate;
|
|
get width() {
|
|
return this.ctx.canvas.width;
|
|
}
|
|
get height() {
|
|
return this.ctx.canvas.height;
|
|
}
|
|
draggables = [];
|
|
clickables = [];
|
|
dragTarget;
|
|
constructor({
|
|
width,
|
|
height,
|
|
fillScreen,
|
|
canvas,
|
|
bg,
|
|
framerate
|
|
}, postInit) {
|
|
if (!canvas) {
|
|
canvas = document.createElement("canvas");
|
|
document.body.append(canvas);
|
|
}
|
|
this.bg = bg || "white";
|
|
this.framerate = framerate;
|
|
canvas.width = fillScreen ? document.body.clientWidth : width;
|
|
canvas.height = fillScreen ? document.body.clientHeight : height;
|
|
if (fillScreen) {
|
|
const resizeObserver = new ResizeObserver((entries) => {
|
|
for (const entry of entries) {
|
|
this._canvas.width = entry.target.clientWidth;
|
|
this._canvas.height = entry.target.clientHeight;
|
|
}
|
|
});
|
|
resizeObserver.observe(document.body);
|
|
}
|
|
this._canvas = canvas;
|
|
const ctx = canvas.getContext("2d");
|
|
if (!ctx) throw "Unable to initialize Doodler: Canvas context not found";
|
|
this.ctx = ctx;
|
|
postInit?.(this.ctx);
|
|
}
|
|
init() {
|
|
this._canvas.addEventListener("mousedown", (e) => this.onClick(e));
|
|
this._canvas.addEventListener("mouseup", (e) => this.offClick(e));
|
|
this._canvas.addEventListener("mousemove", (e) => this.onDrag(e));
|
|
this.startDrawLoop();
|
|
}
|
|
timer;
|
|
lastFrameAt = 0;
|
|
startDrawLoop() {
|
|
this.lastFrameAt = Date.now();
|
|
if (this.framerate) {
|
|
this.timer = setInterval(
|
|
() => this.draw(Date.now()),
|
|
1e3 / this.framerate
|
|
);
|
|
} else {
|
|
const cb = (t) => {
|
|
this.draw(t);
|
|
requestAnimationFrame(cb);
|
|
};
|
|
requestAnimationFrame(cb);
|
|
}
|
|
}
|
|
draw(time) {
|
|
const frameTime = time - this.lastFrameAt;
|
|
this.ctx.clearRect(0, 0, this.width, this.height);
|
|
this.ctx.fillStyle = this.bg;
|
|
this.ctx.fillRect(0, 0, this.width, this.height);
|
|
for (const [i, l] of (this.layers || []).entries()) {
|
|
l(this.ctx, i, frameTime);
|
|
this.drawDeferred();
|
|
}
|
|
this.drawUI();
|
|
this.lastFrameAt = time;
|
|
}
|
|
// Layer management
|
|
createLayer(layer) {
|
|
this.layers.push(layer);
|
|
}
|
|
deleteLayer(layer) {
|
|
this.layers = this.layers.filter((l) => l !== layer);
|
|
}
|
|
moveLayer(layer, index) {
|
|
let temp = this.layers.filter((l) => l !== layer);
|
|
temp = [...temp.slice(0, index), layer, ...temp.slice(index)];
|
|
this.layers = temp;
|
|
}
|
|
// Drawing
|
|
line(start, end, style) {
|
|
this.setStyle(style);
|
|
this.ctx.beginPath();
|
|
this.ctx.moveTo(start.x, start.y);
|
|
this.ctx.lineTo(end.x, end.y);
|
|
this.ctx.stroke();
|
|
}
|
|
dot(at, style) {
|
|
this.setStyle({ ...style, weight: 1 });
|
|
this.ctx.beginPath();
|
|
this.ctx.arc(at.x, at.y, style?.weight || 1, 0, Constants.TWO_PI);
|
|
this.ctx.fill();
|
|
}
|
|
drawCircle(at, radius, style) {
|
|
this.setStyle(style);
|
|
this.ctx.beginPath();
|
|
this.ctx.arc(at.x, at.y, radius, 0, Constants.TWO_PI);
|
|
this.ctx.stroke();
|
|
}
|
|
fillCircle(at, radius, style) {
|
|
this.setStyle(style);
|
|
this.ctx.beginPath();
|
|
this.ctx.arc(at.x, at.y, radius, 0, Constants.TWO_PI);
|
|
this.ctx.fill();
|
|
}
|
|
drawRect(at, width, height, style) {
|
|
this.setStyle(style);
|
|
this.ctx.strokeRect(at.x, at.y, width, height);
|
|
}
|
|
fillRect(at, width, height, style) {
|
|
this.setStyle(style);
|
|
this.ctx.fillRect(at.x, at.y, width, height);
|
|
}
|
|
drawSquare(at, size, style) {
|
|
this.drawRect(at, size, size, style);
|
|
}
|
|
fillSquare(at, size, style) {
|
|
this.fillRect(at, size, size, style);
|
|
}
|
|
drawCenteredRect(at, width, height, style) {
|
|
this.ctx.save();
|
|
this.ctx.translate(-width / 2, -height / 2);
|
|
this.drawRect(at, width, height, style);
|
|
this.ctx.restore();
|
|
}
|
|
fillCenteredRect(at, width, height, style) {
|
|
this.ctx.save();
|
|
this.ctx.translate(-width / 2, -height / 2);
|
|
this.fillRect(at, width, height, style);
|
|
this.ctx.restore();
|
|
}
|
|
drawCenteredSquare(at, size, style) {
|
|
this.drawCenteredRect(at, size, size, style);
|
|
}
|
|
fillCenteredSquare(at, size, style) {
|
|
this.fillCenteredRect(at, size, size, style);
|
|
}
|
|
drawBezier(a, b, c, d, style) {
|
|
this.setStyle(style);
|
|
this.ctx.beginPath();
|
|
this.ctx.moveTo(a.x, a.y);
|
|
this.ctx.bezierCurveTo(b.x, b.y, c.x, c.y, d.x, d.y);
|
|
this.ctx.stroke();
|
|
}
|
|
drawRotated(origin, angle, cb) {
|
|
this.ctx.save();
|
|
this.ctx.translate(origin.x, origin.y);
|
|
this.ctx.rotate(angle);
|
|
this.ctx.translate(-origin.x, -origin.y);
|
|
cb();
|
|
this.ctx.restore();
|
|
}
|
|
drawScaled(scale, cb) {
|
|
this.ctx.save();
|
|
this.ctx.transform(scale, 0, 0, scale, 0, 0);
|
|
cb();
|
|
this.ctx.restore();
|
|
}
|
|
drawWithAlpha(alpha, cb) {
|
|
this.ctx.save();
|
|
this.ctx.globalAlpha = Math.min(Math.max(alpha, 0), 1);
|
|
cb();
|
|
this.ctx.restore();
|
|
}
|
|
drawImage(img, at, w, h) {
|
|
w && h ? this.ctx.drawImage(img, at.x, at.y, w, h) : this.ctx.drawImage(img, at.x, at.y);
|
|
}
|
|
drawImageWithOutline(img, at, w, h, style) {
|
|
this.ctx.save();
|
|
const s = (typeof w === "number" || !w ? style?.weight : w.weight) || 1;
|
|
this.ctx.shadowColor = (typeof w === "number" || !w ? style?.color || style?.fillColor : w.color || w.strokeColor) || "red";
|
|
this.ctx.shadowBlur = 0;
|
|
for (let x = -s; x <= s; x++) {
|
|
for (let y = -s; y <= s; y++) {
|
|
this.ctx.shadowOffsetX = x;
|
|
this.ctx.shadowOffsetY = y;
|
|
typeof w === "number" && h ? this.ctx.drawImage(img, at.x, at.y, w, h) : this.ctx.drawImage(img, at.x, at.y);
|
|
}
|
|
}
|
|
this.ctx.restore();
|
|
}
|
|
drawSprite(img, spritePos, sWidth, sHeight, at, width, height) {
|
|
this.ctx.drawImage(
|
|
img,
|
|
spritePos.x,
|
|
spritePos.y,
|
|
sWidth,
|
|
sHeight,
|
|
at.x,
|
|
at.y,
|
|
width,
|
|
height
|
|
);
|
|
}
|
|
deferredDrawings = [];
|
|
deferDrawing(cb) {
|
|
this.deferredDrawings.push(cb);
|
|
}
|
|
drawDeferred() {
|
|
while (this.deferredDrawings.length) {
|
|
this.deferredDrawings.pop()?.();
|
|
}
|
|
}
|
|
setStyle(style) {
|
|
const ctx = this.ctx;
|
|
ctx.fillStyle = style?.color || style?.fillColor || "black";
|
|
ctx.strokeStyle = style?.color || style?.strokeColor || "black";
|
|
ctx.lineWidth = style?.weight || 1;
|
|
ctx.textAlign = style?.textAlign || ctx.textAlign;
|
|
ctx.textBaseline = style?.textBaseline || ctx.textBaseline;
|
|
}
|
|
fillText(text, pos, maxWidth, style) {
|
|
this.setStyle(style);
|
|
this.ctx.fillText(text, pos.x, pos.y, maxWidth);
|
|
}
|
|
strokeText(text, pos, maxWidth, style) {
|
|
this.setStyle(style);
|
|
this.ctx.strokeText(text, pos.x, pos.y, maxWidth);
|
|
}
|
|
clearRect(at, width, height) {
|
|
this.ctx.clearRect(at.x, at.y, width, height);
|
|
}
|
|
// Interaction
|
|
mouseX = 0;
|
|
mouseY = 0;
|
|
registerDraggable(point, radius, style) {
|
|
if (this.draggables.find((d) => d.point === point)) return;
|
|
const id = this.addUIElement("circle", point, radius, {
|
|
fillColor: "#5533ff50",
|
|
strokeColor: "#5533ff50"
|
|
});
|
|
this.draggables.push({ point, radius, style, id });
|
|
}
|
|
unregisterDraggable(point) {
|
|
for (const d of this.draggables) {
|
|
if (d.point === point) {
|
|
this.removeUIElement(d.id);
|
|
}
|
|
}
|
|
this.draggables = this.draggables.filter((d) => d.point !== point);
|
|
}
|
|
registerClickable(p1, p2, cb) {
|
|
const top = Math.min(p1.y, p2.y);
|
|
const left = Math.min(p1.x, p2.x);
|
|
const bottom = Math.max(p1.y, p2.y);
|
|
const right = Math.max(p1.x, p2.x);
|
|
this.clickables.push({
|
|
onClick: cb,
|
|
checkBound: (p) => p.y >= top && p.x >= left && p.y <= bottom && p.x <= right
|
|
});
|
|
}
|
|
unregisterClickable(cb) {
|
|
this.clickables = this.clickables.filter((c) => c.onClick !== cb);
|
|
}
|
|
addDragEvents({
|
|
onDragEnd,
|
|
onDragStart,
|
|
onDrag,
|
|
point
|
|
}) {
|
|
const d = this.draggables.find((d2) => d2.point === point);
|
|
if (d) {
|
|
d.onDragEnd = onDragEnd;
|
|
d.onDragStart = onDragStart;
|
|
d.onDrag = onDrag;
|
|
}
|
|
}
|
|
onClick(e) {
|
|
const mouse = new Vector(this.mouseX, this.mouseY);
|
|
for (const d of this.draggables) {
|
|
if (d.point.dist(mouse) <= d.radius) {
|
|
d.beingDragged = true;
|
|
d.onDragStart?.call(null);
|
|
this.dragTarget = d;
|
|
} else d.beingDragged = false;
|
|
}
|
|
for (const c of this.clickables) {
|
|
if (c.checkBound(mouse)) {
|
|
c.onClick();
|
|
}
|
|
}
|
|
}
|
|
offClick(e) {
|
|
for (const d of this.draggables) {
|
|
d.beingDragged = false;
|
|
d.onDragEnd?.call(null);
|
|
}
|
|
this.dragTarget = void 0;
|
|
}
|
|
onDrag(e) {
|
|
const rect = this._canvas.getBoundingClientRect();
|
|
this.mouseX = e.offsetX;
|
|
this.mouseY = e.offsetY;
|
|
for (const d of this.draggables.filter((d2) => d2.beingDragged)) {
|
|
d.point.add(e.movementX, e.movementY);
|
|
d.onDrag && d.onDrag({ x: e.movementX, y: e.movementY });
|
|
}
|
|
}
|
|
// UI Layer
|
|
uiElements = /* @__PURE__ */ new Map();
|
|
uiDrawing = {
|
|
rectangle: (...args) => {
|
|
!args[3].noFill && this.fillRect(args[0], args[1], args[2], args[3]);
|
|
!args[3].noStroke && this.drawRect(args[0], args[1], args[2], args[3]);
|
|
},
|
|
square: (...args) => {
|
|
!args[2].noFill && this.fillSquare(args[0], args[1], args[2]);
|
|
!args[2].noStroke && this.drawSquare(args[0], args[1], args[2]);
|
|
},
|
|
circle: (...args) => {
|
|
!args[2].noFill && this.fillCircle(args[0], args[1], args[2]);
|
|
!args[2].noStroke && this.drawCircle(args[0], args[1], args[2]);
|
|
}
|
|
};
|
|
drawUI() {
|
|
for (const [shape, ...args] of this.uiElements.values()) {
|
|
this.uiDrawing[shape].apply(null, args);
|
|
}
|
|
}
|
|
addUIElement(shape, ...args) {
|
|
const id = crypto.randomUUID();
|
|
for (const arg of args) {
|
|
delete arg.color;
|
|
}
|
|
this.uiElements.set(id, [shape, ...args]);
|
|
return id;
|
|
}
|
|
removeUIElement(id) {
|
|
this.uiElements.delete(id);
|
|
}
|
|
};
|
|
|
|
// https://git.cyborggrizzly.com/emma/doodler/raw/tag/0.1.1/timing/EaseInOut.ts
|
|
var easeInOut = (x) => x < 0.5 ? 4 * x * x * x : 1 - Math.pow(-2 * x + 2, 3) / 2;
|
|
|
|
// https://git.cyborggrizzly.com/emma/doodler/raw/tag/0.1.1/timing/Map.ts
|
|
var map = (value, x1, y1, x2, y2) => (value - x1) * (y2 - x2) / (y1 - x1) + x2;
|
|
|
|
// https://git.cyborggrizzly.com/emma/doodler/raw/tag/0.1.1/zoomableCanvas.ts
|
|
var ZoomableDoodler = class extends Doodler {
|
|
scale = 1;
|
|
dragging = false;
|
|
origin = {
|
|
x: 0,
|
|
y: 0
|
|
};
|
|
mouse = {
|
|
x: 0,
|
|
y: 0
|
|
};
|
|
previousTouchLength;
|
|
touchTimer;
|
|
hasDoubleTapped = false;
|
|
zooming = false;
|
|
scaleAround = { x: 0, y: 0 };
|
|
maxScale = 4;
|
|
minScale = 1;
|
|
constructor(options, postInit) {
|
|
super(options, postInit);
|
|
this._canvas.addEventListener("wheel", (e) => {
|
|
this.scaleAtMouse(e.deltaY < 0 ? 1.1 : 0.9);
|
|
if (this.scale === 1) {
|
|
this.origin.x = 0;
|
|
this.origin.y = 0;
|
|
}
|
|
});
|
|
this._canvas.addEventListener("dblclick", (e) => {
|
|
e.preventDefault();
|
|
this.scale = 1;
|
|
this.origin.x = 0;
|
|
this.origin.y = 0;
|
|
this.ctx.setTransform(1, 0, 0, 1, 0, 0);
|
|
});
|
|
this._canvas.addEventListener("mousedown", (e) => {
|
|
e.preventDefault();
|
|
this.dragging = true;
|
|
});
|
|
this._canvas.addEventListener("mouseup", (e) => {
|
|
e.preventDefault();
|
|
this.dragging = false;
|
|
});
|
|
this._canvas.addEventListener("mouseleave", (_e) => {
|
|
this.dragging = false;
|
|
});
|
|
this._canvas.addEventListener("mousemove", (e) => {
|
|
const prev = this.mouse;
|
|
this.mouse = {
|
|
x: e.offsetX,
|
|
y: e.offsetY
|
|
};
|
|
if (this.dragging && !this.dragTarget) this.drag(prev);
|
|
});
|
|
this._canvas.addEventListener("touchstart", (e) => {
|
|
e.preventDefault();
|
|
if (e.touches.length === 1) {
|
|
const t1 = e.touches.item(0);
|
|
if (t1) {
|
|
this.mouse = this.getTouchOffset({
|
|
x: t1.clientX,
|
|
y: t1.clientY
|
|
});
|
|
}
|
|
} else {
|
|
clearTimeout(this.touchTimer);
|
|
}
|
|
});
|
|
this._canvas.addEventListener("touchend", (e) => {
|
|
if (e.touches.length !== 2) {
|
|
this.previousTouchLength = void 0;
|
|
}
|
|
switch (e.touches.length) {
|
|
case 1:
|
|
break;
|
|
case 0:
|
|
if (!this.zooming) {
|
|
this.events.get("touchend")?.map((cb) => cb(e));
|
|
}
|
|
break;
|
|
}
|
|
this.dragging = e.touches.length === 1;
|
|
clearTimeout(this.touchTimer);
|
|
});
|
|
this._canvas.addEventListener("touchmove", (e) => {
|
|
e.preventDefault();
|
|
if (e.touches.length === 2) {
|
|
const t1 = e.touches.item(0);
|
|
const t2 = e.touches.item(1);
|
|
if (t1 && t2) {
|
|
const vect = OriginVector.from(
|
|
this.getTouchOffset({
|
|
x: t1.clientX,
|
|
y: t1.clientY
|
|
}),
|
|
{
|
|
x: t2.clientX,
|
|
y: t2.clientY
|
|
}
|
|
);
|
|
if (this.previousTouchLength) {
|
|
const diff = this.previousTouchLength - vect.mag();
|
|
this.scaleAt(vect.halfwayPoint, diff < 0 ? 1.01 : 0.99);
|
|
this.scaleAround = { ...vect.halfwayPoint };
|
|
}
|
|
this.previousTouchLength = vect.mag();
|
|
}
|
|
}
|
|
if (e.touches.length === 1) {
|
|
this.dragging === true;
|
|
const t1 = e.touches.item(0);
|
|
if (t1) {
|
|
const prev = this.mouse;
|
|
this.mouse = this.getTouchOffset({
|
|
x: t1.clientX,
|
|
y: t1.clientY
|
|
});
|
|
this.drag(prev);
|
|
}
|
|
}
|
|
});
|
|
this._canvas.addEventListener("touchstart", (e) => {
|
|
if (e.touches.length !== 1) return false;
|
|
if (!this.hasDoubleTapped) {
|
|
this.hasDoubleTapped = true;
|
|
setTimeout(() => this.hasDoubleTapped = false, 300);
|
|
return false;
|
|
}
|
|
if (this.scale > 1) {
|
|
this.frameCounter = map(this.scale, this.maxScale, 1, 0, 59);
|
|
this.zoomDirection = -1;
|
|
} else {
|
|
this.frameCounter = 0;
|
|
this.zoomDirection = 1;
|
|
}
|
|
if (this.zoomDirection > 0) {
|
|
this.scaleAround = { ...this.mouse };
|
|
}
|
|
this.events.get("doubletap")?.map((cb) => cb(e));
|
|
});
|
|
}
|
|
worldToScreen(x, y) {
|
|
x = x * this.scale + this.origin.x;
|
|
y = y * this.scale + this.origin.y;
|
|
return { x, y };
|
|
}
|
|
screenToWorld(x, y) {
|
|
x = (x - this.origin.x) / this.scale;
|
|
y = (y - this.origin.y) / this.scale;
|
|
return { x, y };
|
|
}
|
|
scaleAtMouse(scaleBy) {
|
|
if (this.scale === this.maxScale && scaleBy > 1) return;
|
|
this.scaleAt({
|
|
x: this.mouse.x,
|
|
y: this.mouse.y
|
|
}, scaleBy);
|
|
}
|
|
scaleAt(p, scaleBy) {
|
|
this.scale = Math.min(
|
|
Math.max(this.scale * scaleBy, this.minScale),
|
|
this.maxScale
|
|
);
|
|
this.origin.x = p.x - (p.x - this.origin.x) * scaleBy;
|
|
this.origin.y = p.y - (p.y - this.origin.y) * scaleBy;
|
|
this.constrainOrigin();
|
|
}
|
|
moveOrigin(motion) {
|
|
if (this.scale > 1) {
|
|
this.origin.x += motion.x;
|
|
this.origin.y += motion.y;
|
|
this.constrainOrigin();
|
|
}
|
|
}
|
|
drag(prev) {
|
|
if (this.scale > 1) {
|
|
const xOffset = this.mouse.x - prev.x;
|
|
const yOffset = this.mouse.y - prev.y;
|
|
this.origin.x += xOffset;
|
|
this.origin.y += yOffset;
|
|
this.constrainOrigin();
|
|
}
|
|
}
|
|
constrainOrigin() {
|
|
this.origin.x = Math.min(
|
|
Math.max(
|
|
this.origin.x,
|
|
-this._canvas.width * this.scale + this._canvas.width
|
|
),
|
|
0
|
|
);
|
|
this.origin.y = Math.min(
|
|
Math.max(
|
|
this.origin.y,
|
|
-this._canvas.height * this.scale + this._canvas.height
|
|
),
|
|
0
|
|
);
|
|
}
|
|
draw(time) {
|
|
this.ctx.setTransform(
|
|
this.scale,
|
|
0,
|
|
0,
|
|
this.scale,
|
|
this.origin.x,
|
|
this.origin.y
|
|
);
|
|
this.animateZoom();
|
|
this.ctx.fillStyle = this.bg;
|
|
this.ctx.fillRect(0, 0, this.width / this.scale, this.height / this.scale);
|
|
super.draw(time);
|
|
}
|
|
getTouchOffset(p) {
|
|
const { x, y } = this._canvas.getBoundingClientRect();
|
|
const offsetX = p.x - x;
|
|
const offsetY = p.y - y;
|
|
return {
|
|
x: offsetX,
|
|
y: offsetY
|
|
};
|
|
}
|
|
onDrag(e) {
|
|
const d = {
|
|
...e,
|
|
movementX: e.movementX / this.scale,
|
|
movementY: e.movementY / this.scale
|
|
};
|
|
super.onDrag(d);
|
|
const { x, y } = this.screenToWorld(e.offsetX, e.offsetY);
|
|
this.mouseX = x;
|
|
this.mouseY = y;
|
|
}
|
|
zoomDirection = -1;
|
|
frameCounter = 60;
|
|
animateZoom() {
|
|
if (this.frameCounter < 60) {
|
|
const frame = easeInOut(map(this.frameCounter, 0, 59, 0, 1));
|
|
switch (this.zoomDirection) {
|
|
case 1:
|
|
{
|
|
this.scale = map(frame, 0, 1, 1, this.maxScale);
|
|
}
|
|
break;
|
|
case -1:
|
|
{
|
|
this.scale = map(frame, 0, 1, this.maxScale, 1);
|
|
}
|
|
break;
|
|
}
|
|
this.origin.x = this.scaleAround.x - this.scaleAround.x * this.scale;
|
|
this.origin.y = this.scaleAround.y - this.scaleAround.y * this.scale;
|
|
this.constrainOrigin();
|
|
this.frameCounter++;
|
|
}
|
|
}
|
|
events = /* @__PURE__ */ new Map();
|
|
registerEvent(eventName, cb) {
|
|
let events = this.events.get(eventName);
|
|
if (!events) events = this.events.set(eventName, []).get(eventName);
|
|
events.push(cb);
|
|
}
|
|
};
|
|
|
|
// https://git.cyborggrizzly.com/emma/doodler/raw/tag/0.1.1/init.ts
|
|
function init(opt, zoomable, postInit) {
|
|
if (window.doodler) {
|
|
throw "Doodler has already been initialized in this window";
|
|
}
|
|
window.doodler = zoomable ? new ZoomableDoodler(opt, postInit) : new Doodler(opt, postInit);
|
|
window.doodler.init();
|
|
}
|
|
|
|
// train.ts
|
|
var Train = class {
|
|
nodes = [];
|
|
cars = [];
|
|
path;
|
|
t;
|
|
engineLength = 40;
|
|
spacing = 30;
|
|
speed = 0;
|
|
constructor(track, cars2 = []) {
|
|
this.path = track;
|
|
this.t = 0;
|
|
this.nodes.push(this.path.followEvenPoints(this.t));
|
|
this.nodes.push(this.path.followEvenPoints(this.t - this.real2Track(40)));
|
|
const engineSprites2 = document.getElementById(
|
|
"engine-sprites"
|
|
);
|
|
this.cars.push(
|
|
new TrainCar(
|
|
55,
|
|
engineSprites2,
|
|
80,
|
|
20,
|
|
{ at: new Vector(0, 60), width: 80, height: 20 }
|
|
),
|
|
new TrainCar(
|
|
25,
|
|
engineSprites2,
|
|
40,
|
|
20,
|
|
{ at: new Vector(80, 0), width: 40, height: 20 }
|
|
)
|
|
);
|
|
this.cars[0].points = this.nodes.map((n) => n);
|
|
this.cars[1].points = this.nodes.map((n) => n);
|
|
let currentOffset = 40;
|
|
for (const car of cars2) {
|
|
currentOffset += this.spacing;
|
|
const a = this.path.followEvenPoints(this.t - currentOffset);
|
|
currentOffset += car.length;
|
|
const b = this.path.followEvenPoints(this.t - currentOffset);
|
|
car.points = [a, b];
|
|
this.cars.push(car);
|
|
}
|
|
}
|
|
move(dTime) {
|
|
this.t = (this.t + this.speed * dTime * 10) % this.path.evenPoints.length;
|
|
let currentOffset = 0;
|
|
for (const car of this.cars) {
|
|
if (!car.points) return;
|
|
const [a, b] = car.points;
|
|
a.set(this.path.followEvenPoints(this.t - currentOffset));
|
|
currentOffset += car.length;
|
|
b.set(this.path.followEvenPoints(this.t - currentOffset));
|
|
currentOffset += this.spacing;
|
|
car.draw();
|
|
}
|
|
}
|
|
// draw() {
|
|
// for (const [i, node] of this.nodes.entries()) {
|
|
// doodler.drawCircle(node.point, 10, { color: 'purple', weight: 3 })
|
|
// // const next = this.nodes[i + 1];
|
|
// // if (next) {
|
|
// // const to = Vector.sub(node.point, next.point);
|
|
// // to.setMag(40);
|
|
// // doodler.line(next.point, Vector.add(to, next.point))
|
|
// // }
|
|
// }
|
|
// }
|
|
real2Track(length2) {
|
|
return length2 / this.path.pointSpacing;
|
|
}
|
|
};
|
|
var TrainCar = class {
|
|
img;
|
|
imgWidth;
|
|
imgHeight;
|
|
sprite;
|
|
points;
|
|
length;
|
|
constructor(length2, img, w, h, sprite) {
|
|
this.img = img;
|
|
this.sprite = sprite;
|
|
this.imgWidth = w;
|
|
this.imgHeight = h;
|
|
this.length = length2;
|
|
}
|
|
draw() {
|
|
if (!this.points) return;
|
|
const [a, b] = this.points;
|
|
const origin = Vector.add(Vector.sub(a, b).div(2), b);
|
|
const angle = Vector.sub(b, a).heading();
|
|
doodler.drawCircle(origin, 4, { color: "blue" });
|
|
doodler.drawRotated(origin, angle, () => {
|
|
this.sprite ? doodler.drawSprite(
|
|
this.img,
|
|
this.sprite.at,
|
|
this.sprite.width,
|
|
this.sprite.height,
|
|
origin.copy().sub(this.imgWidth / 2, this.imgHeight / 2),
|
|
this.imgWidth,
|
|
this.imgHeight
|
|
) : doodler.drawImage(
|
|
this.img,
|
|
origin.copy().sub(this.imgWidth / 2, this.imgHeight / 2)
|
|
);
|
|
});
|
|
}
|
|
};
|
|
|
|
// math/path.ts
|
|
var PathSegment = class {
|
|
points;
|
|
ctx;
|
|
length;
|
|
constructor(points) {
|
|
this.points = points;
|
|
this.length = this.calculateApproxLength(100);
|
|
}
|
|
setContext(ctx) {
|
|
this.ctx = ctx;
|
|
}
|
|
draw() {
|
|
const [a, b, c, d] = this.points;
|
|
doodler.drawBezier(a, b, c, d, {
|
|
strokeColor: "#ffffff50"
|
|
});
|
|
}
|
|
getPointAtT(t) {
|
|
const [a, b, c, d] = this.points;
|
|
const res = a.copy();
|
|
res.add(Vector.add(a.copy().mult(-3), b.copy().mult(3)).mult(t));
|
|
res.add(Vector.add(Vector.add(a.copy().mult(3), b.copy().mult(-6)), c.copy().mult(3)).mult(Math.pow(t, 2)));
|
|
res.add(Vector.add(Vector.add(a.copy().mult(-1), b.copy().mult(3)), Vector.add(c.copy().mult(-3), d.copy())).mult(Math.pow(t, 3)));
|
|
return res;
|
|
}
|
|
getClosestPoint(v) {
|
|
const samples = 25;
|
|
const resolution = 1 / samples;
|
|
let closest = this.points[0];
|
|
let closestDistance = this.points[0].dist(v);
|
|
let closestT = 0;
|
|
for (let i = 0; i < samples; i++) {
|
|
const point = this.getPointAtT(i * resolution);
|
|
const distance = v.dist(point);
|
|
if (distance < closestDistance) {
|
|
closest = point;
|
|
closestDistance = distance;
|
|
closestT = i * resolution;
|
|
}
|
|
}
|
|
return [closest, closestDistance, closestT];
|
|
}
|
|
getPointsWithinRadius(v, r) {
|
|
const points = [];
|
|
const samples = 25;
|
|
const resolution = 1 / samples;
|
|
for (let i = 0; i < samples; i++) {
|
|
const point = this.getPointAtT(i * resolution);
|
|
const distance = v.dist(point);
|
|
if (distance < r) {
|
|
points.push([i * resolution, this]);
|
|
}
|
|
}
|
|
return points;
|
|
}
|
|
tangent(t) {
|
|
const [a, b, c, d] = this.points;
|
|
const res = Vector.sub(b, a).mult(3 * Math.pow(1 - t, 2));
|
|
res.add(Vector.add(Vector.sub(c, b).mult(6 * (1 - t) * t), Vector.sub(d, c).mult(3 * Math.pow(t, 2))));
|
|
return res;
|
|
}
|
|
doesIntersectCircle(x, y, r) {
|
|
const v = new Vector(x, y);
|
|
const samples = 25;
|
|
const resolution = 1 / samples;
|
|
let distance = Infinity;
|
|
let t;
|
|
for (let i = 0; i < samples; i++) {
|
|
if (i !== samples - 1) {
|
|
const a = this.getPointAtT(i * resolution);
|
|
const b = this.getPointAtT((i + 1) * resolution);
|
|
const ac = Vector.sub(v, a);
|
|
const ab = Vector.sub(b, a);
|
|
const d = Vector.add(Vector.vectorProjection(ac, ab), a);
|
|
const ad = Vector.sub(d, a);
|
|
const k = Math.abs(ab.x) > Math.abs(ab.y) ? ad.x / ab.x : ad.y / ab.y;
|
|
let dist;
|
|
if (k <= 0) {
|
|
dist = Vector.hypot2(v, a);
|
|
} else if (k >= 1) {
|
|
dist = Vector.hypot2(v, b);
|
|
}
|
|
dist = Vector.hypot2(v, d);
|
|
if (dist < distance) {
|
|
distance = dist;
|
|
t = i * resolution;
|
|
}
|
|
}
|
|
}
|
|
if (distance < r) return t;
|
|
return false;
|
|
}
|
|
calculateApproxLength(resolution = 25) {
|
|
const stepSize = 1 / resolution;
|
|
const points = [];
|
|
for (let i = 0; i <= resolution; i++) {
|
|
const current = stepSize * i;
|
|
points.push(this.getPointAtT(current));
|
|
}
|
|
this.length = points.reduce((acc, cur) => {
|
|
const prev = acc.prev;
|
|
acc.prev = cur;
|
|
if (!prev) return acc;
|
|
acc.length += cur.dist(prev);
|
|
return acc;
|
|
}, { prev: void 0, length: 0 }).length;
|
|
return this.length;
|
|
}
|
|
calculateEvenlySpacedPoints(spacing, resolution = 1) {
|
|
const points = [];
|
|
points.push(this.points[0]);
|
|
let prev = points[0];
|
|
let distSinceLastEvenPoint = 0;
|
|
let t = 0;
|
|
const div = Math.ceil(this.length * resolution * 10);
|
|
while (t < 1) {
|
|
t += 1 / div;
|
|
const point = this.getPointAtT(t);
|
|
distSinceLastEvenPoint += prev.dist(point);
|
|
if (distSinceLastEvenPoint >= spacing) {
|
|
const overshoot = distSinceLastEvenPoint - spacing;
|
|
const evenPoint = Vector.add(point, Vector.sub(point, prev).normalize().mult(overshoot));
|
|
distSinceLastEvenPoint = overshoot;
|
|
points.push(evenPoint);
|
|
prev = evenPoint;
|
|
}
|
|
prev = point;
|
|
}
|
|
return points;
|
|
}
|
|
};
|
|
|
|
// track.ts
|
|
var Track = class extends PathSegment {
|
|
editable = false;
|
|
next;
|
|
prev;
|
|
id;
|
|
constructor(points, next, prev) {
|
|
super(points);
|
|
this.id = crypto.randomUUID();
|
|
this.next = next || this;
|
|
this.prev = prev || this;
|
|
}
|
|
// followTrack(train: Train): [Vector, number] {
|
|
// const predict = train.velocity.copy();
|
|
// predict.normalize();
|
|
// predict.mult(1);
|
|
// const predictpos = Vector.add(train.position, predict)
|
|
// // const leading = train.leadingPoint;
|
|
// // let closest = this.points[0];
|
|
// // let closestDistance = this.getClosestPoint(leading);
|
|
// let [closest, closestDistance, closestT] = this.getClosestPoint(predictpos);
|
|
// // deno-lint-ignore no-this-alias
|
|
// let mostValid: Track = this;
|
|
// if (this.next !== this) {
|
|
// const [point, distance, t] = this.next.getClosestPoint(predictpos);
|
|
// if (distance < closestDistance) {
|
|
// closest = point;
|
|
// closestDistance = distance;
|
|
// mostValid = this.next;
|
|
// closestT = t;
|
|
// }
|
|
// }
|
|
// if (this.prev !== this) {
|
|
// const [point, distance, t] = this.next.getClosestPoint(predictpos);
|
|
// if (distance < closestDistance) {
|
|
// closest = point;
|
|
// closestDistance = distance;
|
|
// mostValid = this.next;
|
|
// closestT = t;
|
|
// }
|
|
// }
|
|
// train.currentTrack = mostValid;
|
|
// train.arrive(closest);
|
|
// // if (predictpos.dist(closest) > 2) train.arrive(closest);
|
|
// return [closest, closestT];
|
|
// }
|
|
getNearestPoint(p) {
|
|
let [closest, closestDistance] = this.getClosestPoint(p);
|
|
if (this.next !== this) {
|
|
const [point, distance, t] = this.next.getClosestPoint(p);
|
|
if (distance < closestDistance) {
|
|
closest = point;
|
|
closestDistance = distance;
|
|
}
|
|
}
|
|
if (this.prev !== this) {
|
|
const [point, distance, t] = this.next.getClosestPoint(p);
|
|
if (distance < closestDistance) {
|
|
closest = point;
|
|
closestDistance = distance;
|
|
}
|
|
}
|
|
return closest;
|
|
}
|
|
getAllPointsInRange(v, r) {
|
|
const points = this.getPointsWithinRadius(v, r).concat(this.next.getPointsWithinRadius(v, r), this.prev.getPointsWithinRadius(v, r));
|
|
return points;
|
|
}
|
|
draw() {
|
|
super.draw();
|
|
if (this.editable) {
|
|
const [a, b, c, d] = this.points;
|
|
doodler.line(a, b);
|
|
doodler.line(c, d);
|
|
}
|
|
}
|
|
setNext(t) {
|
|
this.next = t;
|
|
this.next.points[0] = this.points[3];
|
|
}
|
|
setPrev(t) {
|
|
this.prev = t;
|
|
this.prev.points[3] = this.points[0];
|
|
}
|
|
};
|
|
var Spline = class {
|
|
segments = [];
|
|
ctx;
|
|
evenPoints;
|
|
pointSpacing;
|
|
get points() {
|
|
return Array.from(new Set(this.segments.flatMap((s) => s.points)));
|
|
}
|
|
nodes;
|
|
constructor(segs) {
|
|
this.segments = segs;
|
|
this.pointSpacing = 1;
|
|
this.evenPoints = this.calculateEvenlySpacedPoints(1);
|
|
this.nodes = [];
|
|
for (let i = 0; i < this.points.length; i += 3) {
|
|
const node = {
|
|
anchor: this.points[i],
|
|
controls: [this.points.at(i - 1), this.points[(i + 1) % this.points.length]],
|
|
mirrored: false,
|
|
tangent: true
|
|
};
|
|
this.nodes.push(node);
|
|
}
|
|
}
|
|
setContext(ctx) {
|
|
this.ctx = ctx;
|
|
for (const segment of this.segments) {
|
|
segment.setContext(ctx);
|
|
}
|
|
}
|
|
draw() {
|
|
for (const segment of this.segments) {
|
|
segment.draw();
|
|
}
|
|
}
|
|
calculateEvenlySpacedPoints(spacing, resolution = 1) {
|
|
this.pointSpacing = 1;
|
|
const points = [];
|
|
points.push(this.segments[0].points[0]);
|
|
let prev = points[0];
|
|
let distSinceLastEvenPoint = 0;
|
|
for (const seg of this.segments) {
|
|
let t = 0;
|
|
const div = Math.ceil(seg.length * resolution * 10);
|
|
while (t < 1) {
|
|
t += 1 / div;
|
|
const point = seg.getPointAtT(t);
|
|
distSinceLastEvenPoint += prev.dist(point);
|
|
if (distSinceLastEvenPoint >= spacing) {
|
|
const overshoot = distSinceLastEvenPoint - spacing;
|
|
const evenPoint = Vector.add(point, Vector.sub(point, prev).normalize().mult(overshoot));
|
|
distSinceLastEvenPoint = overshoot;
|
|
points.push(evenPoint);
|
|
prev = evenPoint;
|
|
}
|
|
prev = point;
|
|
}
|
|
}
|
|
this.evenPoints = points;
|
|
return points;
|
|
}
|
|
followEvenPoints(t) {
|
|
if (t < 0) t += this.evenPoints.length;
|
|
const i = Math.floor(t);
|
|
const a = this.evenPoints[i];
|
|
const b = this.evenPoints[(i + 1) % this.evenPoints.length];
|
|
return Vector.lerp(a, b, t % 1);
|
|
}
|
|
calculateApproxLength() {
|
|
for (const s of this.segments) {
|
|
s.calculateApproxLength();
|
|
}
|
|
}
|
|
toggleNodeTangent(p) {
|
|
const node = this.nodes.find((n) => n.anchor === p);
|
|
node && (node.tangent = !node.tangent);
|
|
}
|
|
toggleNodeMirrored(p) {
|
|
const node = this.nodes.find((n) => n.anchor === p);
|
|
node && (node.mirrored = !node.mirrored);
|
|
}
|
|
handleNodeEdit(p, movement) {
|
|
const node = this.nodes.find((n) => n.anchor === p || n.controls.includes(p));
|
|
if (!node || !(node.mirrored || node.tangent)) return;
|
|
if (node.anchor !== p) {
|
|
if (node.mirrored || node.tangent) {
|
|
const mover = node.controls.find((e) => e !== p);
|
|
const v = Vector.sub(node.anchor, p);
|
|
if (!node.mirrored) v.setMag(Vector.sub(node.anchor, mover).mag());
|
|
mover.set(Vector.add(v, node.anchor));
|
|
}
|
|
} else {
|
|
for (const control of node.controls) {
|
|
control.add(movement.x, movement.y);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
var generateSquareTrack = () => {
|
|
const first = new Track([new Vector(20, 40), new Vector(20, 100), new Vector(20, 300), new Vector(20, 360)]);
|
|
const second = new Track([first.points[3], new Vector(20, 370), new Vector(30, 380), new Vector(40, 380)]);
|
|
const third = new Track([second.points[3], new Vector(100, 380), new Vector(300, 380), new Vector(360, 380)]);
|
|
const fourth = new Track([third.points[3], new Vector(370, 380), new Vector(380, 370), new Vector(380, 360)]);
|
|
const fifth = new Track([fourth.points[3], new Vector(380, 300), new Vector(380, 100), new Vector(380, 40)]);
|
|
const sixth = new Track([fifth.points[3], new Vector(380, 30), new Vector(370, 20), new Vector(360, 20)]);
|
|
const seventh = new Track([sixth.points[3], new Vector(300, 20), new Vector(100, 20), new Vector(40, 20)]);
|
|
const eighth = new Track([seventh.points[3], new Vector(30, 20), new Vector(20, 30), first.points[0]]);
|
|
const tracks = [first, second, third, fourth, fifth, sixth, seventh, eighth];
|
|
for (const [i, track] of tracks.entries()) {
|
|
track.next = tracks[(i + 1) % tracks.length];
|
|
track.prev = tracks.at(i - 1);
|
|
}
|
|
return new Spline([first, second, third, fourth, fifth, sixth, seventh, eighth]);
|
|
};
|
|
var loadFromJson = () => {
|
|
const json = JSON.parse(localStorage.getItem("railPath") || "");
|
|
if (!json) return generateSquareTrack();
|
|
const segments = [];
|
|
for (const { points } of json.segments) {
|
|
segments.push(new Track(points.map((p) => new Vector(p.x, p.y))));
|
|
}
|
|
for (const [i, s] of segments.entries()) {
|
|
s.setNext(segments[(i + 1) % segments.length]);
|
|
s.setPrev(segments.at(i - 1));
|
|
}
|
|
return new Spline(segments);
|
|
};
|
|
|
|
// main.ts
|
|
var engineSprites = document.createElement("img");
|
|
engineSprites.src = "./sprites/EngineSprites.png";
|
|
engineSprites.style.display = "none";
|
|
engineSprites.id = "engine-sprites";
|
|
document.body.append(engineSprites);
|
|
init({
|
|
fillScreen: true,
|
|
bg: "#333"
|
|
}, true);
|
|
var doodler2 = window.doodler;
|
|
var path;
|
|
try {
|
|
path = loadFromJson();
|
|
} catch {
|
|
path = generateSquareTrack();
|
|
}
|
|
var speed = 1;
|
|
var length = Math.floor(Math.random() * 7);
|
|
var cars = Array.from(
|
|
{ length },
|
|
() => new TrainCar(40, engineSprites, 61, 20, {
|
|
at: new Vector(80, 20 * Math.ceil(Math.random() * 3)),
|
|
width: 61,
|
|
height: 20
|
|
})
|
|
);
|
|
var train = new Train(path, cars);
|
|
var dragEndCounter = 0;
|
|
var selectedNode;
|
|
doodler2.createLayer((_1, _2, _3) => {
|
|
_1.imageSmoothingEnabled = false;
|
|
const dTime = (_3 < 0 ? 1 : _3) / 1e3;
|
|
for (let i = 0; i < path.evenPoints.length; i += 10) {
|
|
const p = path.evenPoints[i];
|
|
const next = path.evenPoints[(i + 1) % path.evenPoints.length];
|
|
const last = path.evenPoints.at(i - 1);
|
|
if (!last) break;
|
|
const tan = Vector.sub(last, next);
|
|
doodler2.drawRotated(p, tan.heading(), () => {
|
|
doodler2.line(p, p.copy().add(0, 10), { color: "#291b17", weight: 4 });
|
|
doodler2.line(p, p.copy().add(0, -10), { color: "#291b17", weight: 4 });
|
|
doodler2.line(p.copy().add(-6, 5), p.copy().add(6, 5), {
|
|
color: "grey",
|
|
weight: 2
|
|
});
|
|
doodler2.line(p.copy().add(-6, -5), p.copy().add(6, -5), {
|
|
color: "grey",
|
|
weight: 2
|
|
});
|
|
});
|
|
}
|
|
path.draw();
|
|
train.move(dTime);
|
|
selectedNode?.anchor.drawDot();
|
|
selectedNode?.controls.forEach((e) => e.drawDot());
|
|
});
|
|
var editable = false;
|
|
var clickables = /* @__PURE__ */ new Map();
|
|
var selectedPoint;
|
|
document.addEventListener("keyup", (e) => {
|
|
if (e.key === "d") {
|
|
}
|
|
if (e.key === "ArrowUp") {
|
|
speed += 0.1;
|
|
train.speed += 1;
|
|
}
|
|
if (e.key === "ArrowDown") {
|
|
speed -= 0.1;
|
|
train.speed -= 1;
|
|
}
|
|
if (e.key === "m" && selectedPoint) {
|
|
const points = path.points;
|
|
const index = points.findIndex((p) => p === selectedPoint);
|
|
if (index > -1) {
|
|
const prev = points.at(index - 1);
|
|
const next = points[(index + 1) % points.length];
|
|
const toPrev = Vector.sub(prev, selectedPoint);
|
|
toPrev.setMag(next.dist(selectedPoint));
|
|
toPrev.rotate(Math.PI);
|
|
const toNext = Vector.add(toPrev, selectedPoint);
|
|
next.set(toNext);
|
|
path.calculateApproxLength();
|
|
path.calculateEvenlySpacedPoints(1);
|
|
}
|
|
}
|
|
let translate = false;
|
|
if (e.key === "e" && !translate) {
|
|
editable = !editable;
|
|
for (const t of path.segments) {
|
|
t.editable = !t.editable;
|
|
for (const p of t.points) {
|
|
if (t.editable) {
|
|
doodler2.registerDraggable(p, 10);
|
|
doodler2.addDragEvents({
|
|
point: p,
|
|
onDragEnd: () => {
|
|
dragEndCounter++;
|
|
t.length = t.calculateApproxLength(100);
|
|
path.evenPoints = path.calculateEvenlySpacedPoints(1);
|
|
},
|
|
onDrag: (movement) => {
|
|
path.handleNodeEdit(p, movement);
|
|
}
|
|
});
|
|
} else {
|
|
doodler2.unregisterDraggable(p);
|
|
}
|
|
}
|
|
}
|
|
for (const p of path.points) {
|
|
if (editable) {
|
|
const onClick = () => {
|
|
selectedPoint = p;
|
|
selectedNode = path.nodes.find(
|
|
(e2) => e2.anchor === p || e2.controls.includes(p)
|
|
);
|
|
};
|
|
clickables.set(p, onClick);
|
|
doodler2.registerClickable(
|
|
p.copy().sub(10, 10),
|
|
p.copy().add(10, 10),
|
|
onClick
|
|
);
|
|
} else {
|
|
const the = clickables.get(p);
|
|
doodler2.unregisterClickable(the);
|
|
}
|
|
}
|
|
}
|
|
let x = 0;
|
|
let y = 0;
|
|
const onDrag = (e2) => {
|
|
x += e2.movementX;
|
|
y += e2.movementY;
|
|
console.log("draggin");
|
|
};
|
|
const dragEnd = () => {
|
|
x = 0;
|
|
y = 0;
|
|
for (const t of path.points) {
|
|
t.add(x, y);
|
|
}
|
|
};
|
|
if (e.key === "t" && editable) {
|
|
for (const t of path.points) {
|
|
t.add(100, 100);
|
|
}
|
|
path.calculateEvenlySpacedPoints(1);
|
|
}
|
|
});
|
|
document.addEventListener("keydown", (e) => {
|
|
if (e.key === "s") {
|
|
e.preventDefault();
|
|
path.segments.forEach((s) => {
|
|
s.next = s.next.id;
|
|
s.prev = s.prev.id;
|
|
delete s.ctx;
|
|
});
|
|
delete path.ctx;
|
|
const json = JSON.stringify(path);
|
|
localStorage.setItem("railPath", json);
|
|
}
|
|
});
|
|
})();
|