public void Tick(float dt)
{
Cursor.lockState = CursorLockMode.Locked; // Keep doing this. We don't want cursor anywhere just yet
// We use GetAxisRaw, since we need it to feel as responsive as possible
Vector3 moveInput = new Vector3(Input.GetAxisRaw("Horizontal"), 0, Input.GetAxisRaw("Vertical")).normalized;
#region No clip
#if CHEATS_ENABLED
if (Input.GetKeyDown(KeyCode.RightAlt))
{
_noClipMove = !_noClipMove;
}
if (Input.GetMouseButtonDown(2))
{
_velocity = _velocity.normalized * 20;
}
#endif
if (_noClipMove)
{
float y = 0;
if (Input.GetKey(KeyCode.Space))
{
y = 1;
}
else if (Input.GetKey(KeyCode.LeftControl))
{
y = -1;
}
moveInput.y = y;
transform.position += _camTransform.TransformDirection(moveInput) * NoClipSpeed * Time.deltaTime;
_velocity = Vector3.zero;
return;
}
#endregion
IsWalking = Input.GetKey(KeyCode.LeftShift);
// MOVEMENT
var wishDir = _camTransform.TransformDirectionHorizontal(moveInput); // We want to go in this direction
_wishDirDebug = wishDir.ToHorizontal();
var isGrounded = IsGrounded(out Vector3 groundNormal);
if (isGrounded) // Ground move
{
if (_isGroundedInPrevFrame && !_isGonnaJump) // Don't apply friction if just landed or about to jump
{
ApplyFriction(ref _velocity, dt);
}
var speedLimit = IsWalking ? WalkSpeed : MaxSpeedAlongOneDimension;
Accelerate(ref _velocity, wishDir, GroundAccelerationCoeff, speedLimit, dt);
// Crop up horizontal velocity component
_velocity = Vector3.ProjectOnPlane(_velocity, groundNormal);
if (_isGonnaJump)
{
// Jump away
_velocity += Gravity.Up * JumpStrength;
_sfx.Jump();
}
}
else // Air move
{
// If the input doesn't have the same facing with the current velocity
// then slow down instead of speeding up
var coeff = Vector3.Dot(_velocity, wishDir) > 0 ? AirAccelCoeff : AirDecelCoeff;
Accelerate(ref _velocity, wishDir, coeff, MaxSpeedAlongOneDimension, dt);
if (Mathf.Abs(moveInput.z) > 0.0001) // Pure side velocity doesn't allow air control
{
ApplyAirControl(ref _velocity, wishDir, moveInput, dt);
}
_velocity += Gravity.Down * (GravityAmount * dt);
}
var displacement = _velocity * dt;
// If we're moving too fast, make sure we don't hollow through any collider
if (displacement.magnitude > _collisionVolume.radius)
{
ClampDisplacement(ref _velocity, ref displacement, transform.position);
}
transform.position += displacement;
var collisionDisplacement = ResolveCollisions(ref _velocity);
transform.position += collisionDisplacement;
#region Footsteps
if (isGrounded)
{
// At the moment of stopping:
// - force play the sfx, it makes it sound more natural, humans usually stop with an extra step
// - reset the distance, to make the footsteps ryhtym the same at start of walking every time
if (_prevVelocity.ToHorizontal().magnitude > 0.01 && _velocity.ToHorizontal().magnitude < 0.01)
{
_footstepDistance = 0f;
_sfx.Footstep();
}
var totalDisplacement = displacement + collisionDisplacement;
_footstepDistance += totalDisplacement.magnitude;
const float stepDistance = 2f; // Play a footstep after this much of travel
if (_footstepDistance > stepDistance)
{
_footstepDistance = 0f;
_sfx.Footstep();
}
}
#endregion
_isGroundedInPrevFrame = isGrounded;
_prevVelocity = _velocity;
}