@litecanvas/utils/dist/collision.js

Utilities to help build litecanvas games

(() => {
  // src/_global.js
  globalThis.utils = globalThis.utils || {};
  globalThis.utils.global = () => {
    for (const key in globalThis.utils) {
      if ("global" === key) continue;
      globalThis[key] = globalThis.utils[key];
    }
  };

  // src/collision/intersection.js
  var intersection_default = (x1, y1, w1, h1, x2, y2, w2, h2) => {
    const left = Math.max(x1, x2);
    const width = Math.min(x1 + w1, x2 + w2) - left;
    const top = Math.max(y1, y2);
    const height = Math.min(y1 + h1, y2 + h2) - top;
    return [left, top, width, height];
  };

  // src/collision/resolve.js
  var resolve_default = (x1, y1, w1, h1, x2, y2, w2, h2) => {
    const [left, top, width, height] = intersection_default(
      x1,
      y1,
      w1,
      h1,
      x2,
      y2,
      w2,
      h2
    );
    let direction = "";
    let resolveX = x1;
    let resolveY = y1;
    if (width < height) {
      if (x1 < x2) {
        direction = "right";
        resolveX = x2 - w1;
      } else {
        direction = "left";
        resolveX = x2 + w2;
      }
    } else {
      if (y1 < y2) {
        direction = "bottom";
        resolveY = y2 - h1;
      } else {
        direction = "top";
        resolveY = y2 + h2;
      }
    }
    return { direction, x: resolveX, y: resolveY };
  };

  // src/collision/_web.js
  globalThis.utils = Object.assign(globalThis.utils || {}, {
    resolve: resolve_default,
    intersection: intersection_default
  });
})();