ilikecats/stk-code_catmod
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Added some squashing of the ball when it hits the ground.

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git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@9317 178a84e3-b1eb-0310-8ba1-8eac791a3b58
This commit is contained in:
hikerstk 2011-07-21 22:53:44 +00:00
parent 1928a0b409
commit 46e7ecb829
1 changed files with 18 additions and 4 deletions
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22
src/items/rubber_ball.cpp
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@ -110,7 +110,6 @@ void RubberBall::init(const XMLNode &node, scene::IMesh *bowling)
Flyable::init(node, bowling, PowerupManager::POWERUP_RUBBERBALL);
} // init
// -----------------------------------------------------------------------------
/** Updates the rubber ball.
* \param dt Time step size.
@ -118,9 +117,6 @@ void RubberBall::init(const XMLNode &node, scene::IMesh *bowling)
void RubberBall::update(float dt)
{
Flyable::update(dt);
m_timer += dt;
if(m_timer>m_interval)
m_timer -= m_interval;
// Update the target in case that the first kart was overtaken (or has
// finished the race).
@ -152,6 +148,8 @@ void RubberBall::update(float dt)
}
m_quad_graph->spatialToTrack(&ball_distance_vec, getXYZ(),
m_current_graph_node);
// Detect wrap around, i.e. crossing the start line
float old_distance = m_distance_along_track;
m_distance_along_track = ball_distance_vec[2];
@ -173,6 +171,10 @@ void RubberBall::update(float dt)
if(x<0)
x+=track_length;
m_timer += dt;
if(m_timer>m_interval)
m_timer -= m_interval;
float height;
if(x>50)
{
@ -183,6 +185,18 @@ void RubberBall::update(float dt)
// --> scale with m_max_height / -m_interval^2/4
float f = m_max_height / (-0.25f*m_interval*m_interval);
height = m_timer * (m_timer-m_interval) * f;
// If we start the squashing as soon as the height is smaller than
// height of the ball, it looks to extreme. So a ratio r of the height
// of the ball and the current height of the object is used to tweak
// the look a bit.
float r = 2.0f;
if(r*height<m_extend.getY())
m_node->setScale(core::vector3df(1.0f, r*height/m_extend.getY(),
1.0f));
else
m_node->setScale(core::vector3df(1.0f, 1.0f, 1.0f));
}
else
{