TypeScript Vector.fromPolar函数代码示例

  public fire(angle : number, position : Vector, velocity : Vector, isMine : boolean, commitFireFn : (fireEnergy : number, fireDelay : number, recoilAcceleration : number) => boolean) : any {
    let level = this.level_.getValue();
    if (level < 0) {
      return null;
    }

    let fireEnergy = this.getFireEnergy_();
    let fireDelay = this.getFireDelay_();
    let recoilAcceleration = isMine ? 0 : this.getRecoilAcceleration_();

    if (!commitFireFn(fireEnergy, fireDelay, recoilAcceleration)) {
      return null;
    }

    let lifetime = this.getLifetime_();
    let damage = this.getDamage_();
    let bounceCount = this.getBounceCount_();
    let blastRadius = this.getBlastRadius_();
    let proxRadius = this.getProxRadius_();
    let newVelocity = isMine ? Vector.ZERO : velocity.add(Vector.fromPolar(this.getBombSpeed_(), angle));
    let projectile = this.simulation_.modelObjectFactory.newBomb(this.owner_, level, position, newVelocity, lifetime, damage, bounceCount, blastRadius, proxRadius);

    this.owner_.addProjectile(projectile);

    return {
      'type': this.getType(),
      'level': level,
      'vel': newVelocity.toArray(),
      'bounceCount': bounceCount
    };
  }

  public onFired(timeDiff : number, position : Vector, velocity : Vector, weaponData : any) {
    assert(weaponData['type'] == this.getType(), 'Cannot fire burst with incorrect weapon type: ' + weaponData['type']);

    let shrapnelCount = this.settings_['shrapnelCount'];
    let lifetime = this.settings_['lifetime'];
    let damage = this.settings_['damage'];

    for (let i = 0; i < shrapnelCount; ++i) {
      let shrapVel = Vector.fromPolar(this.settings_['speed'], i * 2 * Math.PI / shrapnelCount).add(velocity);
      let projectile = this.simulation_.modelObjectFactory.newBurst(this.owner_, position, shrapVel, lifetime, damage);
      for (let j = 0; j < timeDiff; ++j) {
        projectile.advanceTime();
      }
      this.owner_.addProjectile(projectile);
    }
  }

  /**
   * Called when the player this sprite represents gets killed.
   */
  private death_(killee : Player, killer : Player) {
    let position = killee.getPosition();
    let velocity = killee.getVelocity();

    let resourceManager = this.game_.getResourceManager();
    let ensemble = resourceManager.getSpriteSheet('explode1');
    new Effect(this.game_, ensemble.getAnimation(0), position, velocity);

    ensemble = resourceManager.getSpriteSheet('ship' + killee.ship + '_junk');
    for (let i = 0; i < ensemble.getNumAnimations(); ++i) {
      let animation = ensemble.getAnimation(i);
      let deltaVelocity = Vector.fromPolar(Math.random() * 2, Math.random() * 2 * Math.PI);
      new Effect(this.game_, animation, position, velocity.add(deltaVelocity));
    }

    if (this.game_.getViewport().contains(position)) {
      resourceManager.playSound('explodeShip');
    }
  }

  public fire(angle : number, position : Vector, velocity : Vector, commitFireFn : (fireEnergy : number, fireDelay : number) => boolean) : any {
    let fireEnergy = this.getFireEnergy_();
    let fireDelay = this.getFireDelay_();
    let level = this.level_.getValue();

    if (level < 0 || !commitFireFn(fireEnergy, fireDelay)) {
      return null;
    }

    let factory = this.simulation_.modelObjectFactory;
    let lifetime = this.getLifetime_();
    let damage = this.getDamage_();
    let bounceCount = this.getBounceCount_();
    let bulletSpeed = this.getBulletSpeed_();
    let multifireAngle = (this.multifireState_ == ToggleState.ENABLED) ? this.gunSettings_['multifire']['angle'] : 0;

    let bullets = new Array<Bullet>();
    if (this.gunSettings_['doubleBarrel']) {
      let bulletVelocity = velocity.add(Vector.fromPolar(bulletSpeed, angle));
      let leftPosition = position.add(Vector.fromPolar(10, angle - Math.PI / 2));
      let rightPosition = position.add(Vector.fromPolar(10, angle + Math.PI / 2));

      bullets.push(factory.newBullet(this.owner_, level, leftPosition, bulletVelocity, lifetime, damage, bounceCount));
      bullets.push(factory.newBullet(this.owner_, level, rightPosition, bulletVelocity, lifetime, damage, bounceCount));
    } else {
      let bulletVelocity = velocity.add(Vector.fromPolar(bulletSpeed, angle));
      bullets.push(factory.newBullet(this.owner_, level, position, bulletVelocity, lifetime, damage, bounceCount));
    }

    if (this.multifireState_ == ToggleState.ENABLED) {
      let leftVelocity = velocity.add(Vector.fromPolar(bulletSpeed, angle - multifireAngle));
      let rightVelocity = velocity.add(Vector.fromPolar(bulletSpeed, angle + multifireAngle));
      bullets.push(factory.newBullet(this.owner_, level, position, leftVelocity, lifetime, damage, bounceCount));
      bullets.push(factory.newBullet(this.owner_, level, position, rightVelocity, lifetime, damage, bounceCount));
    }

    for (let i = 0; i < bullets.length; ++i) {
      this.owner_.addProjectile(bullets[i]);
    }

    new BulletGroup(bullets);

    return {
      'type': this.getType(),
      'angle': angle,
      'level': level,
      'bounceCount': bounceCount,
      'multifire': this.multifireState_ == ToggleState.ENABLED
    }
  }

  public fire(position : Vector, commitFireFn : (fireEnergy : number, fireDelay : number) => boolean) : any {
    if (this.count_ <= 0 || !commitFireFn(0 /* fireEnergy */, this.settings_['fireDelay'])) {
      return null;
    }

    --this.count_;
    let shrapnelCount = this.settings_['shrapnelCount'];
    let lifetime = this.settings_['lifetime'];
    let damage = this.settings_['damage'];

    for (let i = 0; i < shrapnelCount; ++i) {
      let velocity = Vector.fromPolar(this.settings_['speed'], i * 2 * Math.PI / shrapnelCount).add(this.owner_.getVelocity());
      let projectile = this.simulation_.modelObjectFactory.newBurst(this.owner_, this.owner_.getPosition(), velocity, lifetime, damage);
      this.owner_.addProjectile(projectile);
    }

    return {
      'type': this.getType()
    };
  }

  public onFired(timeDiff : number, position : Vector, velocity : Vector, weaponData : any) {
    assert(weaponData['type'] == this.getType(), 'Cannot fire gun with incorrect weapon type: ' + weaponData['type']);

    let factory = this.simulation_.modelObjectFactory;
    let level = weaponData['level'];
    let angle = weaponData['angle'];
    let bounceCount = weaponData['bounceCount'];
    let isMultifire = weaponData['multifire'];

    // Make sure the level is correct so the following getters use the right value for their calculations.
    this.level_.setValue(level);

    let lifetime = this.getLifetime_();
    let damage = this.getDamage_();
    let bulletSpeed = this.getBulletSpeed_();
    let multifireAngle = isMultifire ? this.gunSettings_['multifire']['angle'] : 0;

    let bullets = new Array<Bullet>();
    if (this.gunSettings_['doubleBarrel']) {
      let bulletVelocity = velocity.add(Vector.fromPolar(bulletSpeed, angle));
      let leftPosition = position.add(Vector.fromPolar(10, angle - Math.PI / 2));
      let rightPosition = position.add(Vector.fromPolar(10, angle + Math.PI / 2));

      bullets.push(factory.newBullet(this.owner_, level, leftPosition, bulletVelocity, lifetime, damage, bounceCount));
      bullets.push(factory.newBullet(this.owner_, level, rightPosition, bulletVelocity, lifetime, damage, bounceCount));
    } else {
      let bulletVelocity = velocity.add(Vector.fromPolar(bulletSpeed, angle));
      bullets.push(factory.newBullet(this.owner_, level, position, bulletVelocity, lifetime, damage, bounceCount));
    }

    if (isMultifire) {
      let leftVelocity = velocity.add(Vector.fromPolar(bulletSpeed, angle - multifireAngle));
      let rightVelocity = velocity.add(Vector.fromPolar(bulletSpeed, angle + multifireAngle));
      bullets.push(factory.newBullet(this.owner_, level, position, leftVelocity, lifetime, damage, bounceCount));
      bullets.push(factory.newBullet(this.owner_, level, position, rightVelocity, lifetime, damage, bounceCount));
    }

    for (let i = 0; i < bullets.length; ++i) {
      this.owner_.addProjectile(bullets[i]);
    }

    new BulletGroup(bullets);

    for (let i = 0; i < timeDiff; ++i) {
      for (let j = 0; j < bullets.length; ++j) {
        bullets[j].advanceTime();
      }
    }
  }