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Add slippery group for nodes (players/items slide)

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Wuzzy 2017-08-11 21:16:09 +02:00 • committed by paramat
parent 4381fe0a0a
commit 2ea26e655d
5 changed files with 49 additions and 17 deletions
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25
src/localplayer.cpp
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@ -444,7 +444,7 @@ void LocalPlayer::move(f32 dtime, Environment *env, f32 pos_max_d)
move(dtime, env, pos_max_d, NULL);
}
void LocalPlayer::applyControl(float dtime)
void LocalPlayer::applyControl(float dtime, ClientEnvironment *env)
{
// Clear stuff
swimming_vertical = false;
@ -660,9 +660,16 @@ void LocalPlayer::applyControl(float dtime)
else
incH = incV = movement_acceleration_default * BS * dtime;
INodeDefManager *nodemgr = env->getGameDef()->ndef();
Map *map = &env->getMap();
bool slippery = false;
const ContentFeatures &f = nodemgr->get(map->getNodeNoEx(getStandingNodePos()));
slippery = itemgroup_get(f.groups, "slippery");
// Accelerate to target speed with maximum increment
accelerateHorizontal(speedH * physics_override_speed, incH * physics_override_speed);
accelerateVertical(speedV * physics_override_speed, incV * physics_override_speed);
accelerateHorizontal(speedH * physics_override_speed,
incH * physics_override_speed, slippery);
accelerateVertical(speedV * physics_override_speed,
incV * physics_override_speed);
}
v3s16 LocalPlayer::getStandingNodePos()
@ -699,12 +706,20 @@ v3f LocalPlayer::getEyeOffset() const
}
// Horizontal acceleration (X and Z), Y direction is ignored
void LocalPlayer::accelerateHorizontal(const v3f &target_speed, const f32 max_increase)
void LocalPlayer::accelerateHorizontal(const v3f &target_speed,
const f32 max_increase, bool slippery)
{
if (max_increase == 0)
return;
v3f d_wanted = target_speed - m_speed;
v3f d_wanted = target_speed - m_speed;
if (slippery) {
if (target_speed == v3f(0))
d_wanted = -m_speed * 0.05f;
else
d_wanted = target_speed * 0.1f - m_speed * 0.1f;
}
d_wanted.Y = 0;
f32 dl = d_wanted.getLength();
if (dl > max_increase)