michael/pathfinder
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pathfinder
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Basic drawing working now

This commit is contained in:
Patrick Walton 2018-11-15 21:23:03 -08:00
parent 052e9b27cd
commit fd848468bc
1 changed files with 39 additions and 8 deletions
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47
demo2/pathfinder.ts
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@ -217,14 +217,18 @@ class App {
const stencilVertexPositions: number[] = [], stencilVertexTileIndices: number[] = [];
for (let tileIndex = 0; tileIndex < scene.tiles.length; tileIndex++) {
const tile = scene.tiles[tileIndex];
let lastPoint = {x: 0.0, y: 0.0};
let firstPoint = {x: 0.0, y: 0.0}, lastPoint = {x: 0.0, y: 0.0};
tile.path.iterate(segment => {
if (segment[0] === 'Z')
return;
const point = {
x: parseFloat(segment[segment.length - 2]) - tile.origin.x,
y: parseFloat(segment[segment.length - 1]) - tile.origin.y,
};
let point;
if (segment[0] === 'Z') {
point = firstPoint;
} else {
point = {
x: parseFloat(segment[segment.length - 2]) - tile.origin.x,
y: parseFloat(segment[segment.length - 1]) - tile.origin.y,
};
}
if (!(point.x > -1.0))
throw new Error("x too low");
if (!(point.y > -1.0))
@ -233,7 +237,10 @@ class App {
throw new Error("x too high:" + point.x);
if (!(point.y < TILE_SIZE + 1.0))
throw new Error("y too high");
if (segment[0] !== 'M') {
if (segment[0] === 'M') {
firstPoint = point;
} else {
stencilVertexPositions.push(lastPoint.x, lastPoint.y, point.x, point.y);
stencilVertexTileIndices.push(tileIndex);
primitives++;
@ -380,6 +387,30 @@ class Scene {
}
}
/*
for (const tile of tiles) {
const newSVG = staticCast(document.createElementNS(SVG_NS, 'svg'), SVGElement);
newSVG.setAttribute('class', "tile");
newSVG.style.left = (GLOBAL_OFFSET.x + tile.origin.x) + "px";
newSVG.style.top = (GLOBAL_OFFSET.y + tile.origin.y) + "px";
newSVG.style.width = TILE_SIZE + "px";
newSVG.style.height = TILE_SIZE + "px";
const newPath = document.createElementNS(SVG_NS, 'path');
newPath.setAttribute('d',
tile.path
.translate(-tile.origin.x, -tile.origin.y)
.toString());
const color = pathColors[tile.pathIndex];
newPath.setAttribute('fill',
"rgba(" + color.r + "," + color.g + "," + color.b + "," +
(color.a / 255.0));
newSVG.appendChild(newPath);
document.body.appendChild(newSVG);
}*/
document.body.removeChild(svgElement);
this.tiles = tiles;