public void Execute(Entity entity, int index,
DynamicBuffer <VelocityCurveBuffer> velocityCurveBuffer,
ref VelocityCurve velocityCurve, ref MovingPlatformController movingPlatformController, ref Translation translation)
{
//The platform never moves on the Z axis
velocityCurve.Z = VelocityCurveAxis.Zero();
//Check if we've reached our current destination
float3 destination = movingPlatformController.IsMovingTowardsA ? movingPlatformController.PositionA : movingPlatformController.PositionB;
float distanceToDestination = math.abs(math.distance(translation.Value, destination));
if (distanceToDestination == 0.0f)
{
//Reverse the destination
movingPlatformController.IsMovingTowardsA = !movingPlatformController.IsMovingTowardsA;
destination = movingPlatformController.IsMovingTowardsA ? movingPlatformController.PositionA : movingPlatformController.PositionB;
distanceToDestination = math.abs(math.distance(translation.Value, destination));
}
//Move towards the destination, being carefull not to move past it
float distanceToMoveThisTimeStep = DeltaTime * movingPlatformController.AbsoluteVelocity;
float distanceToMoveThisTimeStepSquared = distanceToMoveThisTimeStep * distanceToMoveThisTimeStep;
float3 distanceAvailableToMove = destination - translation.Value;
float distanceAvailableToMoveSquared = math.lengthsq(distanceAvailableToMove);
float3 directionToMove = math.normalize(distanceAvailableToMove);
float3 linearVelocity = new float3();
if (distanceAvailableToMoveSquared < distanceToMoveThisTimeStepSquared)
{
linearVelocity = distanceAvailableToMove / DeltaTime;
}
else
{
linearVelocity = directionToMove * movingPlatformController.AbsoluteVelocity;
}
//Set the velocity curve
velocityCurve.X = VelocityCurveAxis.Linear(linearVelocity.x > 0.0f,
math.abs(linearVelocity.x));
velocityCurve.Y = VelocityCurveAxis.Linear(linearVelocity.y > 0.0f,
math.abs(linearVelocity.y));
//Add this velocity curve to the moving platform's velocity curve buffer
velocityCurveBuffer.Add(new VelocityCurveBuffer
{
VelocityCurveEntity = entity
});
}
private void ComputeVerticalMovement(ref VelocityCurve velocityCurve,
ref SideScrollingCharacterController sideScrollingCharacterController,
[ReadOnly] ref SolidAgent solidAgent)
{
//Check if we're grounded
if (solidAgent.IsGroundCollided)
{
//We're grounded.
//Reset jumping and falling flags
sideScrollingCharacterController.IsJumping = false;
sideScrollingCharacterController.IsFalling = false;
sideScrollingCharacterController.IsJumpHeld = false;
//Check if we want to jump
if (IsJumpPressedThisFrame)
{
sideScrollingCharacterController.IsJumping = true;
sideScrollingCharacterController.IsJumpHeld = true;
velocityCurve.Y = VelocityCurveAxis.Quadratic(sideScrollingCharacterController.JumpAbsoluteVelocity,
false,
sideScrollingCharacterController.JumpAbsoluteDeceleration,
sideScrollingCharacterController.TerminalVelocity);
}
else
{
//While grounded, continue to push down on the ground an amount
//equal to a single step off acceleration
velocityCurve.Y = VelocityCurveAxis.Linear(false,
sideScrollingCharacterController.FallingAbsoluteAcceleration * DeltaTime);
}
}
else
{
//Check for hitting your head on the ceiling
if ((velocityCurve.Y.CurrentVelocity > 0.0f) &&
(solidAgent.IsCeilingCollided))
{
//Cancel the jump and reduce velocity to zero
velocityCurve.Y.CurrentVelocity = 0.0f;
sideScrollingCharacterController.IsJumpHeld = false;
}
//Differentiate between jumping and falling
if (!IsJumpPressedThisFrame)
{
sideScrollingCharacterController.IsJumpHeld = false;
}
//Did the player let go of jump?
if (sideScrollingCharacterController.IsJumping && !sideScrollingCharacterController.IsJumpHeld)
{
sideScrollingCharacterController.IsJumping = false;
}
//Check if we should start falling
if (!sideScrollingCharacterController.IsJumping && !sideScrollingCharacterController.IsFalling)
{
//Start Falling
sideScrollingCharacterController.IsFalling = true;
velocityCurve.Y = VelocityCurveAxis.Quadratic(velocityCurve.Y.CurrentVelocity,
false,
sideScrollingCharacterController.FallingAbsoluteAcceleration,
sideScrollingCharacterController.TerminalVelocity);
}
}
}