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Relatively snappy object-ground collision detection

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This commit is contained in:
Perttu Ahola 2011-11-21 14:36:21 +02:00
parent 94feb62b08
commit 290e921920
9 changed files with 81 additions and 31 deletions
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41
src/content_cao.cpp
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@ -1457,11 +1457,34 @@ void LuaEntityCAO::updateNodePos()
void LuaEntityCAO::step(float dtime, ClientEnvironment *env)
{
m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
m_velocity += dtime * m_acceleration;
pos_translator.update(m_position, pos_translator.aim_is_end, pos_translator.anim_time);
pos_translator.translate(dtime);
updateNodePos();
if(m_prop->physical){
core::aabbox3d<f32> box = m_prop->collisionbox;
box.MinEdge *= BS;
box.MaxEdge *= BS;
collisionMoveResult moveresult;
f32 pos_max_d = BS*0.25; // Distance per iteration
v3f p_pos = m_position;
v3f p_velocity = m_velocity;
IGameDef *gamedef = env->getGameDef();
moveresult = collisionMovePrecise(&env->getMap(), gamedef,
pos_max_d, box, dtime, p_pos, p_velocity);
// Apply results
m_position = p_pos;
m_velocity = p_velocity;
bool is_end_position = moveresult.collides;
pos_translator.update(m_position, is_end_position, dtime);
pos_translator.translate(dtime);
updateNodePos();
m_velocity += dtime * m_acceleration;
} else {
m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
m_velocity += dtime * m_acceleration;
pos_translator.update(m_position, pos_translator.aim_is_end, pos_translator.anim_time);
pos_translator.translate(dtime);
updateNodePos();
}
}
void LuaEntityCAO::processMessage(const std::string &data)
@ -1487,10 +1510,12 @@ void LuaEntityCAO::processMessage(const std::string &data)
// update_interval
float update_interval = readF1000(is);
if(do_interpolate)
pos_translator.update(m_position, is_end_position, update_interval);
else
if(do_interpolate){
if(!m_prop->physical)
pos_translator.update(m_position, is_end_position, update_interval);
} else {
pos_translator.init(m_position);
}
updateNodePos();
}
}