import {
  Bone,
  Euler,
  Matrix4,
  Object3D,
  Quaternion,
  SkinnedMesh,
  Vector3
} from '../../../src/Three';

export interface MMDPhysicsParameter {
  unitStep?: number;
  maxStepNum?: number;
  gravity?: Vector3;
}

export class MMDPhysics {
  constructor(mesh: SkinnedMesh, rigidBodyParams: object[], constraintParams?: object[], params?: MMDPhysicsParameter);
  manager: ResourceManager;
  mesh: SkinnedMesh;
  unitStep: number;
  maxStepNum: number;
  gravity: Vector3;
  world: null;
  bodies: RigidBody[];
  constraints: Constraint[];

  update(delta: number): this;
  reset(): this;
  warmup(cycles: number): this;
  setGravity(gravity: Vector3): this;
  createHelper(): MMDPhysicsHelper;
}

export class ResourceManager{
  constructor();
  threeVector3s: Vector3[];
  threeMatrix4s: Matrix4[];
  threeQuaternions: Quaternion[];
  threeEulers: Euler[];
  transforms: object[];
  quaternions: object[];
  vector3s: object[];

  allocThreeVector3(): void;
  freeThreeVector3(v: Vector3): void;
  allocThreeMatrix4(): void;
  freeThreeMatrix4(m: Matrix4): void;
  allocThreeQuaternion(): void;
  freeThreeQuaternion(q: Quaternion): void;
  allocThreeEuler(): void;
  freeThreeEuler(e: Euler): void;
  allocTransform(): void;
  freeTransform(t: object): void;
  allocQuaternion(): void;
  freeQuaternion(q: object): void;
  allocVector3(): void;
  freeVector3(v: object): void;
  setIdentity(): void;
  getBasis(t: object): object;
  getBasisAsMatrix3(t: object): object;
  getOrigin(t: object): object;
  setOrigin(t: object, v: object): void;
  copyOrigin(t1: object, t2: object): void;
  setBasis(t: object, q: object): void;
  setBasisFromMatrix3(t: object, m: object): void;
  setOriginFromArray3(t: object, a: number[]): void;
  setOriginFromThreeVector3(t: object, v: Vector3): void;
  setBasisFromArray3(t: object, a: number[]): void;
  setBasisFromThreeQuaternion(t: object, a: Quaternion): void;
  multiplyTransforms(t1: object, t2: object): object;
  inverseTransform(t: object): object;
  multiplyMatrices3(m1: object, m2: object): object;
  addVector3(v1: object, v2: object): object;
  dotVectors3(v1: object, v2: object): number;
  rowOfMatrix3(m: object, i: number): object;
  columnOfMatrix3(m: object, i: number): object;
  negativeVector3(v: object): object;
  multiplyMatrix3ByVector3(m: object, v: object): object;
  transposeMatrix3(m: object): object;
  quaternionToMatrix3(q: object): object;
  matrix3ToQuaternion(m: object): object;
}

export class RigidBody{
  constructor(mesh: SkinnedMesh, world: object, params: object, manager: ResourceManager);
  mesh: SkinnedMesh;
  world: object;
  params: object;
  manager: ResourceManager;

  body: object;
  bone: Bone;
  boneOffsetForm: object;
  boneOffsetFormInverse: object;

  reset(): this;
  updateFromBone(): this;
  updateBone(): this;
}

export class Constraint{
  constructor(mesh: SkinnedMesh, world: object, bodyA: RigidBody, bodyB: RigidBody, params: object, manager: ResourceManager);

}

export class MMDPhysicsHelper extends Object3D {
  constructor();
}