private static void Rotate(MovingEntity subject)
{
float velocityZ = subject.Velocity.Z;
switch (subject.RotationDirection)
{
case Constants.EntityRotationDirection.Clockwise:
if(subject.Velocity.Z < subject.RotationSpeed)
velocityZ += subject.RotationAcceleration;
break;
case Constants.EntityRotationDirection.Counterclockwise:
if(subject.Velocity.Z > -subject.RotationSpeed)
velocityZ -= subject.RotationAcceleration;
break;
case Constants.EntityRotationDirection.None:
if (subject.Velocity.Z > subject.RotationAcceleration)
velocityZ -= subject.RotationAcceleration;
else if (subject.Velocity.Z < -subject.RotationAcceleration)
velocityZ += subject.RotationAcceleration;
else
velocityZ = 0;
break;
}
subject.Velocity = new Vector3(subject.Velocity.X, subject.Velocity.Y, velocityZ);
}
private static void Walk(MovingEntity subject)
{
if (subject.TangentialVelocity < subject.WalkSpeed)
subject.TangentialVelocity += subject.Acceleration;
else
subject.TangentialVelocity = subject.WalkSpeed;
float velocityX = (float)Math.Cos(subject.Rotation) * subject.TangentialVelocity;
float velocityY = (float)Math.Sin(subject.Rotation) * subject.TangentialVelocity;
subject.Velocity = new Vector3(velocityX, velocityY, subject.Velocity.Z);
}
public static void ApplyCharacterPhysics(MovingEntity subject)
{
Rotate(subject);
subject.Position += new Vector2(subject.Velocity.X, subject.Velocity.Y);
subject.Rotation += subject.Velocity.Z;
switch (subject.CurrentState)
{
case Constants.CharacterState.Walking:
Walk(subject);
break;
}
}
private static void Run(MovingEntity entity)
{
}
public static void ApplyBulletPhysics(MovingEntity subject)
{
subject.Position += new Vector2(subject.Velocity.X, subject.Velocity.Y);
}