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possibly fixed aiming issues when throwing plunger backwards

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git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/trunk/supertuxkart@2807 178a84e3-b1eb-0310-8ba1-8eac791a3b58
This commit is contained in:
auria 2008-12-29 20:44:36 +00:00
parent 488e5a4aab
commit 6d2292f3c7
1 changed files with 9 additions and 4 deletions
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7
src/items/plunger.cpp
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@ -54,11 +54,16 @@ Plunger::Plunger(Kart *kart) : Flyable(kart, POWERUP_PLUNGER)
// aim at this kart if it's not too far
if(closest_kart != NULL && kartDistSquared < 30*30)
{
btVector3 closestKartLoc = closest_kart->getTrans().getOrigin();
if(!m_reverse_mode)
{
// FIXME - this approximation will be wrong if both karts' directions are not colinear
const float time = sqrt(kartDistSquared) / (m_speed - closest_kart->getSpeed());
// calculate the approximate location of the aimed kart in 'time' seconds
btVector3 closestKartLoc = closest_kart->getTrans().getOrigin();
closestKartLoc += time*closest_kart->getVelocity();
}
// calculate the angle at which the projectile should be thrown
// to hit the aimed kart