moveFromAngleDodgeObstacles method

void moveFromAngleDodgeObstacles(double speed, double angle, { VoidCallback? onCollision, })

Move to direction by radAngle with dodge obstacles

Implementation

void moveFromAngleDodgeObstacles(
  double speed,
  double angle, {
  VoidCallback? onCollision,
}) {
  isIdle = false;
  double innerSpeed = (speed * dtUpdate);
  double nextX = innerSpeed * cos(angle);
  double nextY = innerSpeed * sin(angle);
  Offset nextPoint = Offset(nextX, nextY);

  Offset diffBase = Offset(position.center.dx + nextPoint.dx,
          position.center.dy + nextPoint.dy) -
      position.center;

  var collisionX = _verifyTranslateCollision(
    diffBase.dx,
    0,
  );
  var collisionY = _verifyTranslateCollision(
    0,
    diffBase.dy,
  );

  Offset newDiffBase = diffBase;

  if (collisionX) {
    newDiffBase = Offset(0, newDiffBase.dy);
  }
  if (collisionY) {
    newDiffBase = Offset(newDiffBase.dx, 0);
  }

  if (collisionX && !collisionY && newDiffBase.dy != 0) {
    var collisionY = _verifyTranslateCollision(
      0,
      innerSpeed,
    );
    if (!collisionY) newDiffBase = Offset(0, innerSpeed);
  }

  if (collisionY && !collisionX && newDiffBase.dx != 0) {
    var collisionX = _verifyTranslateCollision(
      innerSpeed,
      0,
    );
    if (!collisionX) newDiffBase = Offset(innerSpeed, 0);
  }

  if (newDiffBase == Offset.zero) {
    onCollision?.call();
  }
  this.position = position.shift(newDiffBase);
}