private void AttemptToGrabRail(List <GravityRail.RailInfo> railsInRange)
{
// iterate over rails in range and find the one most aligned with
float bestDot = 0.0f;
float grabDot = maxGrabDot; //(masterComp.steeringCont.IsStunned() || masterComp.warpCont.IsWarping()) ? restrictedGrabDot : maxGrabDot;
Vector2 forward = masterComp.steeringCont.GetCurrentDirection();
foreach (GravityRail.RailInfo railInfo in railsInRange)
{
float dotVal = Mathf.Abs(Vector2.Dot(forward, railInfo.tangent));
if (dotVal >= grabDot && dotVal > bestDot)
{
// set as current rail if better aligned than current best
bestDot = dotVal;
currentRailInfo = railInfo;
}
}
// if we found a rail to grab
if (bestDot > 0.0f)
{
distanceController.Reset();
// keep speed based on how well timed the grab was
Vector2 direction = Vector2.Dot(forward, currentRailInfo.tangent) > 0.0f ? currentRailInfo.tangent : -currentRailInfo.tangent;
long numerator = (grabFramesLeft + 1) - (grabFramesLeft == 0 ? 1 : 0);
float bonusFromSkill = (0.4f * (1.0f - numerator / ((float)framesToGrab + 1)));
masterComp.speedCont.SetVelocity(direction * masterComp.speedCont.GetSpeed() * (0.5f + bonusFromSkill));
// charge up rail jump based on how skilled the rail grab was
if (canGetGrabBonus)
{
canGetGrabBonus = false;
railJumpPercent = ((currentRailInfo.distance) / maxGrabDist) <= 0.5f ? 1.0f : 0.0f;
}
grabFramesLeft = 0;
// increase max speed and acceleration of the ship
masterComp.speedCont.maxSpeedAdjustors.SetAdjustor(ATTACHED_ADJUSTER_NAME, ON_RAIL_BONUS_SPEED);
masterComp.speedCont.accAdjustors.SetAdjustor(ATTACHED_ADJUSTER_NAME, ON_RAIL_BONUS_ACC);
// remove stun if grabbing while stunned
//masterComp.steeringCont.RemoveStun();
}
else
{
Detach();
// track grab frames left if failed to grab rail
if (grabFramesLeft == 0)
{
grabFramesLeft = framesToGrab;
}
else
{
--grabFramesLeft;
}
}
}
public void Detach()
{
currentRailInfo = null;
railJumpPercent = 0.0f;
// remove on rail movement bonuses
masterComp.speedCont.maxSpeedAdjustors.RemoveAdjustor(ATTACHED_ADJUSTER_NAME);
masterComp.speedCont.accAdjustors.RemoveAdjustor(ATTACHED_ADJUSTER_NAME);
}
public List <GravityRail.RailInfo> GetRailInfoWithinDist(Vector2 pos, float dist)
{
List <GravityRail.RailInfo> railsInRange = new List <GravityRail.RailInfo>();
// loop over each rail in the track and test if it is in range
foreach (GravityRail rail in rails)
{
// get info about rail relative to the passed in position and add it if close enough
GravityRail.RailInfo info = rail.GetRailInfoAtPoint(pos);
if (info.alongRail && info.distance <= dist)
{
railsInRange.Add(info);
}
}
return(railsInRange);
}
private void UpdateRailGrinding(List <GravityRail.RailInfo> railsInRange)
{
// test if still in range of the last rail attached to
GravityRail.RailInfo updatedRailInfo = currentRailInfo.rail.GetRailInfoAtPoint(transform.position);
Vector2 forward = masterComp.steeringCont.GetCurrentDirection();
float bestDot = 0.0f;
GravityRail.RailInfo bestRailInfo = null;
// if still on current rail, ignore tracks not in rail switch range
bool usingRailSwitchRange = updatedRailInfo.alongRail && updatedRailInfo.distance <= maxGrabDist;
if (usingRailSwitchRange)
{
railsInRange = track.GetRailInfoWithinDist(updatedRailInfo.closestPoint, track.GetRailSwitchRange());
}
// get the best rail to stay on
foreach (GravityRail.RailInfo railInfo in railsInRange)
{
float dotVal = Mathf.Abs(Vector2.Dot(forward, railInfo.tangent));
if (dotVal >= bestDot)
{
float velDotVal = Mathf.Abs(Vector2.Dot(masterComp.rbody.velocity.normalized, railInfo.tangent));
// only switch to rail at nearly perpendicular angle to momentum if going slow
if (velDotVal > acceptableSwitchVal)
{
bestDot = dotVal;
bestRailInfo = railInfo;
}
else
{
// ensure that player can do sharp rail switch if going slow
float shipMomentum = masterComp.rbody.mass * masterComp.speedCont.GetSpeed();
// half of the max momentum
float maxSwitchMomentum = (masterComp.rbody.mass * masterComp.speedCont.GetMaxSpeed()) * 0.5f;
// half of the max switch momentum
float minSwitchMomentum = maxSwitchMomentum * 0.5f;
float anglePercent = velDotVal / acceptableSwitchVal;
// only allow switch if momentum is less than max amount allowed for a rail switch
if (shipMomentum < (minSwitchMomentum + (maxSwitchMomentum - minSwitchMomentum) * anglePercent))
{
bestDot = dotVal;
bestRailInfo = railInfo;
}
}
}
}
// either found a rail to switch to or a new rail on the track to grab
if (bestRailInfo != null)
{
//Debug.Log("rail found");
if (bestRailInfo.rail != currentRailInfo.rail)
{
distanceController.Reset();
}
currentRailInfo = bestRailInfo;
// charge up rail jump
if (railJumpPercent < 1.0f)
{
railJumpPercent += Time.fixedDeltaTime / railJumpTimeToCharge;
railJumpPercent = Mathf.Min(railJumpPercent, 1.0f);
}
}
// else is only reached if there was no rail to switch to and current rail isn't within rail switch range
else
{
if (!usingRailSwitchRange)
{
// if no rail in range, detach from rail
Detach();
}
else
{
// if in rail switch range and no rail in range found, stay on current rail
currentRailInfo = updatedRailInfo;
}
}
}
