@rpgjs/physic/dist/index18.js

A deterministic 2D top-down physics library for RPG, sandbox and MMO games

import { CircleCollider } from "./index11.js";
import { AABBCollider } from "./index12.js";
import { entityToPolygonConfig, PolygonCollider } from "./index19.js";
import { CapsuleCollider } from "./index13.js";
const colliderCache = /* @__PURE__ */ new WeakMap();
function createCollider(entity) {
  const cached = colliderCache.get(entity);
  if (cached) {
    return cached;
  }
  let collider = null;
  if (entityToPolygonConfig.has(entity)) {
    collider = new PolygonCollider(entity);
  } else if (entity.capsule) {
    collider = new CapsuleCollider(entity);
  } else if (entity.radius > 0) {
    collider = new CircleCollider(entity);
  } else if (entity.width > 0 && entity.height > 0) {
    collider = new AABBCollider(entity);
  }
  if (collider) {
    colliderCache.set(entity, collider);
  }
  return collider;
}
function testCollision(entityA, entityB) {
  if (!entityA.canCollideWith(entityB)) {
    return null;
  }
  if (entityA.isStatic() && entityB.isStatic()) {
    return null;
  }
  const colliderA = createCollider(entityA);
  const colliderB = createCollider(entityB);
  if (!colliderA || !colliderB) {
    return null;
  }
  return colliderA.testCollision(colliderB);
}
function findCollisions(entities) {
  const collisions = [];
  for (let i = 0; i < entities.length; i++) {
    const entityA = entities[i];
    if (!entityA) continue;
    for (let j = i + 1; j < entities.length; j++) {
      const entityB = entities[j];
      if (!entityB) continue;
      const collision = testCollision(entityA, entityB);
      if (collision) {
        collisions.push(collision);
      }
    }
  }
  return collisions;
}
export {
  createCollider,
  findCollisions,
  testCollision
};
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