Files
Foundry-VTT-Docker/resources/app/node_modules/@pixi/graphics-smooth/lib/shapes/CircleBuilder.mjs
2025-01-04 00:34:03 +01:00

224 lines
5.8 KiB
JavaScript

import { SHAPES } from '@pixi/core';
import { JOINT_TYPE } from '../core/const.mjs';
class CircleBuilder {
path(graphicsData, _target) {
const points = graphicsData.points;
let x;
let y;
let dx;
let dy;
let rx;
let ry;
if (graphicsData.type === SHAPES.CIRC) {
const circle = graphicsData.shape;
x = circle.x;
y = circle.y;
rx = ry = circle.radius;
dx = dy = 0;
} else if (graphicsData.type === SHAPES.ELIP) {
const ellipse = graphicsData.shape;
x = ellipse.x;
y = ellipse.y;
rx = ellipse.width;
ry = ellipse.height;
dx = dy = 0;
} else {
const roundedRect = graphicsData.shape;
const halfWidth = roundedRect.width / 2;
const halfHeight = roundedRect.height / 2;
x = roundedRect.x + halfWidth;
y = roundedRect.y + halfHeight;
rx = ry = Math.max(0, Math.min(roundedRect.radius, Math.min(halfWidth, halfHeight)));
dx = halfWidth - rx;
dy = halfHeight - ry;
}
if (!(rx >= 0 && ry >= 0 && dx >= 0 && dy >= 0)) {
points.length = 0;
return;
}
const n = Math.ceil(2.3 * Math.sqrt(rx + ry));
const m = n * 8 + (dx ? 4 : 0) + (dy ? 4 : 0);
points.length = m;
if (m === 0) {
return;
}
if (n === 0) {
points.length = 8;
points[0] = points[6] = x + dx;
points[1] = points[3] = y + dy;
points[2] = points[4] = x - dx;
points[5] = points[7] = y - dy;
return;
}
let j1 = 0;
let j2 = n * 4 + (dx ? 2 : 0) + 2;
let j3 = j2;
let j4 = m;
{
const x0 = dx + rx;
const y0 = dy;
const x1 = x + x0;
const x2 = x - x0;
const y1 = y + y0;
points[j1++] = x1;
points[j1++] = y1;
points[--j2] = y1;
points[--j2] = x2;
if (dy) {
const y2 = y - y0;
points[j3++] = x2;
points[j3++] = y2;
points[--j4] = y2;
points[--j4] = x1;
}
}
for (let i = 1; i < n; i++) {
const a = Math.PI / 2 * (i / n);
const x0 = dx + Math.cos(a) * rx;
const y0 = dy + Math.sin(a) * ry;
const x1 = x + x0;
const x2 = x - x0;
const y1 = y + y0;
const y2 = y - y0;
points[j1++] = x1;
points[j1++] = y1;
points[--j2] = y1;
points[--j2] = x2;
points[j3++] = x2;
points[j3++] = y2;
points[--j4] = y2;
points[--j4] = x1;
}
{
const x0 = dx;
const y0 = dy + ry;
const x1 = x + x0;
const x2 = x - x0;
const y1 = y + y0;
const y2 = y - y0;
points[j1++] = x1;
points[j1++] = y1;
points[--j4] = y2;
points[--j4] = x1;
if (dx) {
points[j1++] = x2;
points[j1++] = y1;
points[--j4] = y2;
points[--j4] = x2;
}
}
}
fill(graphicsData, target) {
const { verts, joints } = target;
const { points, triangles } = graphicsData;
if (points.length === 0) {
return;
}
let x;
let y;
if (graphicsData.type !== SHAPES.RREC) {
const circle = graphicsData.shape;
x = circle.x;
y = circle.y;
} else {
const roundedRect = graphicsData.shape;
x = roundedRect.x + roundedRect.width / 2;
y = roundedRect.y + roundedRect.height / 2;
}
const matrix = graphicsData.matrix;
const cx = matrix ? matrix.a * x + matrix.c * y + matrix.tx : x;
const cy = matrix ? matrix.b * x + matrix.d * y + matrix.ty : y;
let vertPos = 1;
const center = 0;
if (!graphicsData.fillAA) {
verts.push(cx, cy);
joints.push(JOINT_TYPE.FILL);
verts.push(points[0], points[1]);
joints.push(JOINT_TYPE.FILL);
for (let i = 2; i < points.length; i += 2) {
verts.push(points[i], points[i + 1]);
joints.push(JOINT_TYPE.FILL);
triangles.push(vertPos++, center, vertPos);
}
triangles.push(center + 1, center, vertPos);
return;
}
const len = points.length;
let x1 = points[len - 2];
let y1 = points[len - 1];
let nx1 = y1 - points[len - 3];
let ny1 = points[len - 4] - x1;
const n1 = Math.sqrt(nx1 * nx1 + ny1 * ny1);
nx1 /= n1;
ny1 /= n1;
let bx1;
let by1;
for (let i = 0; i < len; i += 2) {
const x2 = points[i];
const y2 = points[i + 1];
let nx2 = y2 - y1;
let ny2 = x1 - x2;
const n2 = Math.sqrt(nx2 * nx2 + ny2 * ny2);
nx2 /= n2;
ny2 /= n2;
let bx2 = nx1 + nx2;
let by2 = ny1 + ny2;
const b2 = nx2 * bx2 + ny2 * by2;
bx2 /= b2;
by2 /= b2;
if (i > 0) {
verts.push(bx2);
verts.push(by2);
} else {
bx1 = bx2;
by1 = by2;
}
verts.push(cx);
verts.push(cy);
verts.push(x1);
verts.push(y1);
verts.push(x2);
verts.push(y2);
verts.push(0);
verts.push(0);
verts.push(bx2);
verts.push(by2);
joints.push(JOINT_TYPE.FILL_EXPAND + 2);
joints.push(JOINT_TYPE.NONE);
joints.push(JOINT_TYPE.NONE);
joints.push(JOINT_TYPE.NONE);
joints.push(JOINT_TYPE.NONE);
joints.push(JOINT_TYPE.NONE);
x1 = x2;
y1 = y2;
nx1 = nx2;
ny1 = ny2;
}
verts.push(bx1);
verts.push(by1);
}
line(graphicsData, target) {
const { verts, joints } = target;
const { points } = graphicsData;
const joint = points.length === 8 ? graphicsData.goodJointType() : JOINT_TYPE.JOINT_MITER + 3;
const len = points.length;
if (len === 0) {
return;
}
verts.push(points[len - 2], points[len - 1]);
joints.push(JOINT_TYPE.NONE);
for (let i = 0; i < len; i += 2) {
verts.push(points[i], points[i + 1]);
joints.push(joint);
}
verts.push(points[0], points[1]);
joints.push(JOINT_TYPE.NONE);
verts.push(points[2], points[3]);
joints.push(JOINT_TYPE.NONE);
}
}
export { CircleBuilder };
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