private void ProcessScheduledJump_()
{
if (this.scheduledJumpState_ == ScheduledState.STARTING)
{
if (this.StateMachine.CanJumpFromGround)
{
var isLongjump = this.StateMachine.State == PlayerState.SLIDING;
var isBackflip = this.StateMachine.State == PlayerState.TURNING &&
FinMath.Abs(this.Rigidbody.XVelocity) >
PlayerConstants.UPRIGHT_MAX_SLOW_XSPD;
var newYVel =
isLongjump
? PlayerConstants.LONGJUMP_SPEED
: isBackflip
? PlayerConstants.BACKFLIP_JUMP_SPEED
: PlayerConstants.JUMP_SPEED;
var newState =
isLongjump ? PlayerState.LONGJUMPING :
isBackflip ? PlayerState.BACKFLIPPING : PlayerState.JUMPING;
this.Rigidbody.YVelocity = newYVel;
this.StateMachine.State = newState;
// TODO: Longjump feels weird.
if (isLongjump)
{
this.Rigidbody.XVelocity = this.Rigidbody.XVelocity /
PlayerConstants.UPRIGHT_MAX_FAST_XSPD *
PlayerConstants.LONGJUMP_MAX_XSPD;
}
else if (isBackflip)
{
// Instantly flip horizontal velocity.
var moveDirection = FinMath.Sign(this.Rigidbody.XVelocity);
this.Rigidbody.XVelocity =
-moveDirection * PlayerConstants.BACKFLIP_XSPD;
}
}
else if (this.StateMachine.State == PlayerState.WALL_SLIDING)
{
this.StateMachine.State = PlayerState.WALLJUMPING;
this.Rigidbody.YVelocity = PlayerConstants.JUMP_SPEED;
this.Rigidbody.XVelocity =
(this.StateMachine.WallSlidingOnLeft ? 1 : -1) *
PlayerConstants.WALL_SLIDING_XSPD;
}
}
else if (this.scheduledJumpState_ == ScheduledState.STOPPING)
{
if (this.StateMachine.CanStallJumpingMomentum &&
this.Rigidbody.YVelocity < 0)
{
this.StateMachine.State = PlayerState.FALLING;
this.Rigidbody.YVelocity /= 2;
}
}
}
public void TestSign()
{
Assert.AreEqual(-1, FinMath.Sign(-1));
Assert.AreEqual(1, FinMath.Sign(1));
Assert.AreEqual(0, FinMath.Sign(0));
Assert.AreEqual(-1, FinMath.Sign(-1d));
Assert.AreEqual(1, FinMath.Sign(1d));
Assert.AreEqual(0, FinMath.Sign(0d));
}
private void ProcessScheduledHorizontalMovement_()
{
var heldXAxis = this.HeldXAxis;
var isRunning = this.IsRunning;
var isTryingToRun = FloatMath.Abs(heldXAxis) > .5f;
var heldXAxisSign = FinMath.Sign(heldXAxis);
float?targetXVelocity = null;
float xAcceleration = 0;
if (this.StateMachine.CanMoveUprightOnGround)
{
var maxGroundXVelocity =
isRunning
? PlayerConstants.UPRIGHT_MAX_FAST_XSPD
: PlayerConstants.UPRIGHT_MAX_SLOW_XSPD;
var groundAcceleration =
isTryingToRun
? PlayerConstants.GROUND_UPRIGHT_FAST_XACC
: PlayerConstants.GROUND_UPRIGHT_SLOW_XACC;
var reactionFraction =
heldXAxisSign == -FinMath.Sign(this.Rigidbody.XVelocity)
? PlayerConstants.GROUND_REACTION_FRAC
: 1;
targetXVelocity = maxGroundXVelocity * heldXAxis;
xAcceleration = groundAcceleration * reactionFraction * heldXAxisSign;
// If holding a direction on the ground, we're either turning, running, or walking.
if (heldXAxisSign != 0)
{
this.StateMachine.State = reactionFraction != 1
? PlayerState.TURNING
: isTryingToRun
? PlayerState.RUNNING
: PlayerState.WALKING;
}
// If not holding a direction on the ground but velocity is not zero, we're stopping.
else if (FinMath.Abs(this.Rigidbody.XVelocity) > .001)
{
this.StateMachine.State = PlayerState.STOPPING;
}
}
else if (this.StateMachine.CanMoveDuckedOnGround)
{
var maxGroundXVelocity =
isRunning
? PlayerConstants.DUCKED_MAX_FAST_XSPD
: PlayerConstants.DUCKED_MAX_SLOW_XSPD;
var groundAcceleration =
isTryingToRun
? PlayerConstants.GROUND_DUCKED_FAST_XACC
: PlayerConstants.GROUND_DUCKED_SLOW_XACC;
targetXVelocity = maxGroundXVelocity * heldXAxis;
xAcceleration = groundAcceleration * heldXAxisSign;
// If holding a direction on the ground, we're either turning, running, or walking.
if (heldXAxisSign != 0)
{
this.StateMachine.State = PlayerState.DUCKWALKING;
}
}
else if (this.StateMachine.CanMoveInAir)
{
var maxAirXVelocity =
isRunning
? PlayerConstants.UPRIGHT_MAX_FAST_XSPD
: PlayerConstants.UPRIGHT_MAX_SLOW_XSPD;
var airAcceleration =
isTryingToRun
? PlayerConstants.AIR_FAST_XACC
: PlayerConstants.AIR_SLOW_XACC;
targetXVelocity = maxAirXVelocity * heldXAxis;
xAcceleration = airAcceleration * heldXAxisSign;
}
this.Rigidbody.TargetXVelocity = targetXVelocity;
this.Rigidbody.XAcceleration = xAcceleration;
}