PunchDamageResult getPunchDamage(
const ItemGroupList &armor_groups,
const ToolCapabilities *toolcap,
const ItemStack *punchitem,
float time_from_last_punch
){
bool do_hit = true;
{
if(do_hit && punchitem){
if(itemgroup_get(armor_groups, "punch_operable") &&
(toolcap == NULL || punchitem->name == ""))
do_hit = false;
}
if(do_hit){
if(itemgroup_get(armor_groups, "immortal"))
do_hit = false;
}
}
PunchDamageResult result;
if(do_hit)
{
HitParams hitparams = getHitParams(armor_groups, toolcap,
time_from_last_punch);
result.did_punch = true;
result.wear = hitparams.wear;
result.damage = hitparams.hp;
result.main_group = hitparams.main_group;
}
return result;
}
DigParams getDigParams(const ItemGroupList &groups,
const ToolCapabilities *tp, float time_from_last_punch)
{
//infostream<<"getDigParams"<<std::endl;
/* Check group dig_immediate */
switch(itemgroup_get(groups, "dig_immediate")){
case 2:
//infostream<<"dig_immediate=2"<<std::endl;
return DigParams(true, 0.5, 0, "dig_immediate");
case 3:
//infostream<<"dig_immediate=3"<<std::endl;
return DigParams(true, 0.0, 0, "dig_immediate");
default:
break;
}
// Values to be returned (with a bit of conversion)
bool result_diggable = false;
float result_time = 0.0;
float result_wear = 0.0;
std::string result_main_group = "";
int level = itemgroup_get(groups, "level");
//infostream<<"level="<<level<<std::endl;
for(std::map<std::string, ToolGroupCap>::const_iterator
i = tp->groupcaps.begin(); i != tp->groupcaps.end(); i++){
const std::string &name = i->first;
//infostream<<"group="<<name<<std::endl;
const ToolGroupCap &cap = i->second;
int rating = itemgroup_get(groups, name);
float time = 0;
bool time_exists = cap.getTime(rating, &time);
if(!result_diggable || time < result_time){
if(cap.maxlevel >= level && time_exists){
result_diggable = true;
int leveldiff = cap.maxlevel - level;
result_time = time / MYMAX(1, leveldiff);
if(cap.uses != 0)
result_wear = 1.0 / cap.uses / pow(3.0, (double)leveldiff);
else
result_wear = 0;
result_main_group = name;
}
}
}
//infostream<<"result_diggable="<<result_diggable<<std::endl;
//infostream<<"result_time="<<result_time<<std::endl;
//infostream<<"result_wear="<<result_wear<<std::endl;
if(time_from_last_punch < tp->full_punch_interval){
float f = time_from_last_punch / tp->full_punch_interval;
//infostream<<"f="<<f<<std::endl;
result_time /= f;
result_wear /= f;
}
u16 wear_i = 65535.*result_wear;
return DigParams(result_diggable, result_time, wear_i, result_main_group);
}
float LocalPlayer::getSlipFactor(Environment *env, const v3f &speedH)
{
if (!touching_ground)
return 1.0f;
float slip_factor = 1.0f;
// Slip on slippery nodes
const INodeDefManager *nodemgr = env->getGameDef()->ndef();
Map *map = &env->getMap();
const ContentFeatures &f = nodemgr->get(map->getNodeNoEx(
floatToInt(getPosition() - v3f(0, 0.05f * BS, 0), BS)));
int slippery = 0;
if (f.walkable) {
slippery = itemgroup_get(f.groups, "slippery");
} else if (is_slipping) {
// slipping over an edge? Check surroundings for slippery nodes
slippery = 2 << 16; // guard value, bigger than all realistic ones
for (int z = 0; z <= 1; z++) {
for (int x = 0; x <= 1; x++) {
// this should cover all nodes surrounding player position
v3f offset((x - 0.5f) * BS, 0.05f * BS, (z - 0.5f) * BS);
const ContentFeatures &f2 = nodemgr->get(map->getNodeNoEx(
floatToInt(getPosition() - offset, BS)));
if (f2.walkable) {
// find least slippery node we might be standing on
int s = itemgroup_get(f2.groups, "slippery");
if (s < slippery)
slippery = s;
}
}
}
// without any hits, ignore slippery
if (slippery >= (2 << 16))
slippery = 0;
}
if (slippery >= 1) {
if (speedH == v3f(0.0f)) {
slippery = slippery * 2;
}
slip_factor = core::clamp(1.0f / (slippery + 1), 0.001f, 1.0f);
is_slipping = true;
} else {
// remember this to avoid checking the edge case above too often
is_slipping = false;
}
return slip_factor;
}
// Check if input matches recipe
// Takes recipe groups into account
static bool inputItemMatchesRecipe(const std::string &inp_name,
const std::string &rec_name, IItemDefManager *idef)
{
// Exact name
if (inp_name == rec_name)
return true;
// Group
if (isGroupRecipeStr(rec_name) && idef->isKnown(inp_name)) {
const struct ItemDefinition &def = idef->get(inp_name);
Strfnd f(rec_name.substr(6));
bool all_groups_match = true;
do {
std::string check_group = f.next(",");
if (itemgroup_get(def.groups, check_group) == 0) {
all_groups_match = false;
break;
}
} while (!f.atend());
if (all_groups_match)
return true;
}
// Didn't match
return false;
}
static ItemStack craftToolRepair(
const ItemStack &item1,
const ItemStack &item2,
float additional_wear,
IGameDef *gamedef)
{
IItemDefManager *idef = gamedef->idef();
if (item1.count != 1 || item2.count != 1 || item1.name != item2.name
|| idef->get(item1.name).type != ITEM_TOOL
|| itemgroup_get(idef->get(item1.name).groups, "disable_repair") == 1) {
// Failure
return ItemStack();
}
s32 item1_uses = 65536 - (u32) item1.wear;
s32 item2_uses = 65536 - (u32) item2.wear;
s32 new_uses = item1_uses + item2_uses;
s32 new_wear = 65536 - new_uses + floor(additional_wear * 65536 + 0.5);
if (new_wear >= 65536)
return ItemStack();
if (new_wear < 0)
new_wear = 0;
ItemStack repaired = item1;
repaired.wear = new_wear;
return repaired;
}
HitParams getHitParams(const ItemGroupList &armor_groups,
const ToolCapabilities *tp, float time_from_last_punch)
{
s16 damage = 0;
float full_punch_interval = tp->full_punch_interval;
for(std::map<std::string, s16>::const_iterator
i = tp->damageGroups.begin(); i != tp->damageGroups.end(); i++){
s16 armor = itemgroup_get(armor_groups, i->first);
damage += i->second * rangelim(time_from_last_punch * full_punch_interval, 0.0, 1.0)
* armor / 100.0;
}
return HitParams(damage, 0);
}
// Check if input matches recipe
// Takes recipe groups into account
static bool inputItemMatchesRecipe(const std::string &inp_name,
const std::string &rec_name, IItemDefManager *idef)
{
// Exact name
if(inp_name == rec_name)
return true;
// Group
if(rec_name.substr(0,6) == "group:" && idef->isKnown(inp_name)){
std::string rec_group = rec_name.substr(6);
const struct ItemDefinition &def = idef->get(inp_name);
if(itemgroup_get(def.groups, rec_group) != 0)
return true;
}
// Didn't match
return false;
}
virtual void getIds(const std::string &name, std::set<content_t> &result)
const
{
if(name.substr(0,6) != "group:"){
content_t id = CONTENT_IGNORE;
if(getId(name, id))
result.insert(id);
return;
}
std::string group = name.substr(6);
for(u16 id=0; id<=MAX_CONTENT; id++)
{
const ContentFeatures &f = m_content_features[id];
if(f.name == "") // Quickly discard undefined nodes
continue;
if(itemgroup_get(f.groups, group) != 0)
result.insert(id);
}
}
virtual void getIds(const std::string &name, std::set<content_t> &result)
const
{
//TimeTaker t("getIds", NULL, PRECISION_MICRO);
if(name.substr(0,6) != "group:"){
content_t id = CONTENT_IGNORE;
if(getId(name, id))
result.insert(id);
return;
}
std::string group = name.substr(6);
#if 1 // Optimized version, takes less than 1 microsecond at -O1
std::map<std::string, GroupItems>::const_iterator
i = m_group_to_items.find(group);
if (i == m_group_to_items.end())
return;
const GroupItems &items = i->second;
for (GroupItems::const_iterator j = items.begin();
j != items.end(); ++j) {
if ((*j).second != 0)
result.insert((*j).first);
}
#else // Old version, takes about ~150-200us at -O1
for(u16 id=0; id<=MAX_CONTENT; id++)
{
const ContentFeatures &f = m_content_features[id];
if(f.name == "") // Quickly discard undefined nodes
continue;
if(itemgroup_get(f.groups, group) != 0)
result.insert(id);
}
#endif
//printf("getIds: %dus\n", t.stop());
}
collisionMoveResult collisionMoveSimple(Environment *env, IGameDef *gamedef,
f32 pos_max_d, const aabb3f &box_0,
f32 stepheight, f32 dtime,
v3f *pos_f, v3f *speed_f,
v3f accel_f, ActiveObject *self,
bool collideWithObjects)
{
static bool time_notification_done = false;
Map *map = &env->getMap();
//TimeTaker tt("collisionMoveSimple");
/*
ScopeProfiler sp(g_profiler, "collisionMoveSimple avg", SPT_AVG);
*/
collisionMoveResult result;
/*
Calculate new velocity
*/
if (dtime > 1) {
if (!time_notification_done) {
time_notification_done = true;
infostream << "collisionMoveSimple: maximum step interval exceeded,"
" lost movement details!"<<std::endl;
}
dtime = 1;
} else {
time_notification_done = false;
}
*speed_f += accel_f * dtime;
// If there is no speed, there are no collisions
if (speed_f->getLength() == 0)
return result;
// Limit speed for avoiding hangs
speed_f->Y = rangelim(speed_f->Y, -1000, 1000);
speed_f->X = rangelim(speed_f->X, -1000, 1000);
speed_f->Z = rangelim(speed_f->Z, -1000, 1000);
/*
Collect node boxes in movement range
*/
std::vector<aabb3f> cboxes;
std::vector<bool> is_unloaded;
std::vector<bool> is_step_up;
std::vector<bool> is_object;
std::vector<int> bouncy_values;
std::vector<v3s16> node_positions;
{
//TimeTaker tt2("collisionMoveSimple collect boxes");
/*
ScopeProfiler sp(g_profiler, "collisionMoveSimple collect boxes avg", SPT_AVG);
*/
v3s16 oldpos_i = floatToInt(*pos_f, BS);
v3s16 newpos_i = floatToInt(*pos_f + *speed_f * dtime, BS);
s16 min_x = MYMIN(oldpos_i.X, newpos_i.X) + (box_0.MinEdge.X / BS) - 1;
s16 min_y = MYMIN(oldpos_i.Y, newpos_i.Y) + (box_0.MinEdge.Y / BS) - 1;
s16 min_z = MYMIN(oldpos_i.Z, newpos_i.Z) + (box_0.MinEdge.Z / BS) - 1;
s16 max_x = MYMAX(oldpos_i.X, newpos_i.X) + (box_0.MaxEdge.X / BS) + 1;
s16 max_y = MYMAX(oldpos_i.Y, newpos_i.Y) + (box_0.MaxEdge.Y / BS) + 1;
s16 max_z = MYMAX(oldpos_i.Z, newpos_i.Z) + (box_0.MaxEdge.Z / BS) + 1;
bool any_position_valid = false;
for(s16 x = min_x; x <= max_x; x++)
for(s16 y = min_y; y <= max_y; y++)
for(s16 z = min_z; z <= max_z; z++)
{
v3s16 p(x,y,z);
bool is_position_valid;
MapNode n = map->getNodeNoEx(p, &is_position_valid);
if (is_position_valid) {
// Object collides into walkable nodes
any_position_valid = true;
INodeDefManager *nodedef = gamedef->getNodeDefManager();
const ContentFeatures &f = nodedef->get(n);
if(f.walkable == false)
continue;
int n_bouncy_value = itemgroup_get(f.groups, "bouncy");
int neighbors = 0;
if (f.drawtype == NDT_NODEBOX && f.node_box.type == NODEBOX_CONNECTED) {
v3s16 p2 = p;
p2.Y++;
getNeighborConnectingFace(p2, nodedef, map, n, 1, &neighbors);
p2 = p;
p2.Y--;
getNeighborConnectingFace(p2, nodedef, map, n, 2, &neighbors);
p2 = p;
p2.Z--;
getNeighborConnectingFace(p2, nodedef, map, n, 4, &neighbors);
p2 = p;
p2.X--;
getNeighborConnectingFace(p2, nodedef, map, n, 8, &neighbors);
p2 = p;
p2.Z++;
getNeighborConnectingFace(p2, nodedef, map, n, 16, &neighbors);
p2 = p;
p2.X++;
getNeighborConnectingFace(p2, nodedef, map, n, 32, &neighbors);
}
std::vector<aabb3f> nodeboxes;
n.getCollisionBoxes(gamedef->ndef(), &nodeboxes, neighbors);
for(std::vector<aabb3f>::iterator
i = nodeboxes.begin();
i != nodeboxes.end(); ++i)
{
aabb3f box = *i;
box.MinEdge += v3f(x, y, z)*BS;
box.MaxEdge += v3f(x, y, z)*BS;
cboxes.push_back(box);
is_unloaded.push_back(false);
is_step_up.push_back(false);
bouncy_values.push_back(n_bouncy_value);
node_positions.push_back(p);
is_object.push_back(false);
}
}
else {
// Collide with unloaded nodes
aabb3f box = getNodeBox(p, BS);
cboxes.push_back(box);
is_unloaded.push_back(true);
is_step_up.push_back(false);
bouncy_values.push_back(0);
node_positions.push_back(p);
is_object.push_back(false);
}
}
// Do not move if world has not loaded yet, since custom node boxes
// are not available for collision detection.
if (!any_position_valid) {
*speed_f = v3f(0, 0, 0);
return result;
}
} // tt2
if(collideWithObjects)
{
//ScopeProfiler sp(g_profiler, "collisionMoveSimple objects avg", SPT_AVG);
//TimeTaker tt3("collisionMoveSimple collect object boxes");
/* add object boxes to cboxes */
std::vector<ActiveObject*> objects;
#ifndef SERVER
ClientEnvironment *c_env = dynamic_cast<ClientEnvironment*>(env);
if (c_env != 0) {
f32 distance = speed_f->getLength();
std::vector<DistanceSortedActiveObject> clientobjects;
c_env->getActiveObjects(*pos_f, distance * 1.5, clientobjects);
for (size_t i=0; i < clientobjects.size(); i++) {
if ((self == 0) || (self != clientobjects[i].obj)) {
objects.push_back((ActiveObject*)clientobjects[i].obj);
}
}
}
else
#endif
{
ServerEnvironment *s_env = dynamic_cast<ServerEnvironment*>(env);
if (s_env != 0) {
f32 distance = speed_f->getLength();
std::vector<u16> s_objects;
s_env->getObjectsInsideRadius(s_objects, *pos_f, distance * 1.5);
for (std::vector<u16>::iterator iter = s_objects.begin(); iter != s_objects.end(); ++iter) {
ServerActiveObject *current = s_env->getActiveObject(*iter);
if ((self == 0) || (self != current)) {
objects.push_back((ActiveObject*)current);
}
}
}
}
for (std::vector<ActiveObject*>::const_iterator iter = objects.begin();
iter != objects.end(); ++iter) {
ActiveObject *object = *iter;
if (object != NULL) {
aabb3f object_collisionbox;
if (object->getCollisionBox(&object_collisionbox) &&
object->collideWithObjects()) {
cboxes.push_back(object_collisionbox);
is_unloaded.push_back(false);
is_step_up.push_back(false);
bouncy_values.push_back(0);
node_positions.push_back(v3s16(0,0,0));
is_object.push_back(true);
}
}
}
} //tt3
/*
assert(cboxes.size() == is_unloaded.size()); // post-condition
assert(cboxes.size() == is_step_up.size()); // post-condition
assert(cboxes.size() == bouncy_values.size()); // post-condition
assert(cboxes.size() == node_positions.size()); // post-condition
assert(cboxes.size() == is_object.size()); // post-condition
*/
/*
Collision detection
*/
/*
Collision uncertainty radius
Make it a bit larger than the maximum distance of movement
*/
f32 d = pos_max_d * 1.1;
// A fairly large value in here makes moving smoother
//f32 d = 0.15*BS;
// This should always apply, otherwise there are glitches
if(!(d > pos_max_d))
return result;
int loopcount = 0;
while(dtime > BS * 1e-10) {
//TimeTaker tt3("collisionMoveSimple dtime loop");
/*
ScopeProfiler sp(g_profiler, "collisionMoveSimple dtime loop avg", SPT_AVG);
*/
// Avoid infinite loop
loopcount++;
if (loopcount >= 100) {
warningstream << "collisionMoveSimple: Loop count exceeded, aborting to avoid infiniite loop" << std::endl;
break;
}
aabb3f movingbox = box_0;
movingbox.MinEdge += *pos_f;
movingbox.MaxEdge += *pos_f;
int nearest_collided = -1;
f32 nearest_dtime = dtime;
int nearest_boxindex = -1;
/*
Go through every nodebox, find nearest collision
*/
for (u32 boxindex = 0; boxindex < cboxes.size(); boxindex++) {
// Ignore if already stepped up this nodebox.
if(is_step_up[boxindex])
continue;
// Find nearest collision of the two boxes (raytracing-like)
f32 dtime_tmp;
int collided = axisAlignedCollision(
cboxes[boxindex], movingbox, *speed_f, d, &dtime_tmp);
if (collided == -1 || dtime_tmp >= nearest_dtime)
continue;
nearest_dtime = dtime_tmp;
nearest_collided = collided;
nearest_boxindex = boxindex;
}
if (nearest_collided == -1) {
// No collision with any collision box.
*pos_f += *speed_f * dtime;
dtime = 0; // Set to 0 to avoid "infinite" loop due to small FP numbers
} else {
// Otherwise, a collision occurred.
const aabb3f& cbox = cboxes[nearest_boxindex];
// Check for stairs.
bool step_up = (nearest_collided != 1) && // must not be Y direction
(movingbox.MinEdge.Y < cbox.MaxEdge.Y) &&
(movingbox.MinEdge.Y + stepheight > cbox.MaxEdge.Y) &&
(!wouldCollideWithCeiling(cboxes, movingbox,
cbox.MaxEdge.Y - movingbox.MinEdge.Y,
d));
// Get bounce multiplier
bool bouncy = (bouncy_values[nearest_boxindex] >= 1);
float bounce = -(float)bouncy_values[nearest_boxindex] / 100.0;
// Move to the point of collision and reduce dtime by nearest_dtime
if (nearest_dtime < 0) {
// Handle negative nearest_dtime (can be caused by the d allowance)
if (!step_up) {
if (nearest_collided == 0)
pos_f->X += speed_f->X * nearest_dtime;
if (nearest_collided == 1)
pos_f->Y += speed_f->Y * nearest_dtime;
if (nearest_collided == 2)
pos_f->Z += speed_f->Z * nearest_dtime;
}
} else {
*pos_f += *speed_f * nearest_dtime;
dtime -= nearest_dtime;
}
bool is_collision = true;
if (is_unloaded[nearest_boxindex])
is_collision = false;
CollisionInfo info;
if (is_object[nearest_boxindex])
info.type = COLLISION_OBJECT;
else
info.type = COLLISION_NODE;
info.node_p = node_positions[nearest_boxindex];
info.bouncy = bouncy;
info.old_speed = *speed_f;
// Set the speed component that caused the collision to zero
if (step_up) {
// Special case: Handle stairs
is_step_up[nearest_boxindex] = true;
is_collision = false;
} else if(nearest_collided == 0) { // X
if (fabs(speed_f->X) > BS * 3)
speed_f->X *= bounce;
else
speed_f->X = 0;
result.collides = true;
result.collides_xz = true;
}
else if(nearest_collided == 1) { // Y
if (fabs(speed_f->Y) > BS * 3)
speed_f->Y *= bounce;
else
speed_f->Y = 0;
result.collides = true;
} else if(nearest_collided == 2) { // Z
if (fabs(speed_f->Z) > BS * 3)
speed_f->Z *= bounce;
else
speed_f->Z = 0;
result.collides = true;
result.collides_xz = true;
}
info.new_speed = *speed_f;
if (info.new_speed.getDistanceFrom(info.old_speed) < 0.1 * BS)
is_collision = false;
if (is_collision) {
result.collisions.push_back(info);
}
}
}
/*
Final touches: Check if standing on ground, step up stairs.
*/
aabb3f box = box_0;
box.MinEdge += *pos_f;
box.MaxEdge += *pos_f;
for (u32 boxindex = 0; boxindex < cboxes.size(); boxindex++) {
const aabb3f& cbox = cboxes[boxindex];
/*
See if the object is touching ground.
Object touches ground if object's minimum Y is near node's
maximum Y and object's X-Z-area overlaps with the node's
X-Z-area.
Use 0.15*BS so that it is easier to get on a node.
*/
if (cbox.MaxEdge.X - d > box.MinEdge.X && cbox.MinEdge.X + d < box.MaxEdge.X &&
cbox.MaxEdge.Z - d > box.MinEdge.Z &&
cbox.MinEdge.Z + d < box.MaxEdge.Z) {
if (is_step_up[boxindex]) {
pos_f->Y += (cbox.MaxEdge.Y - box.MinEdge.Y);
box = box_0;
box.MinEdge += *pos_f;
box.MaxEdge += *pos_f;
}
if (fabs(cbox.MaxEdge.Y - box.MinEdge.Y) < 0.15 * BS) {
result.touching_ground = true;
if (is_object[boxindex])
result.standing_on_object = true;
if (is_unloaded[boxindex])
result.standing_on_unloaded = true;
}
}
}
return result;
}
void LocalPlayer::move(f32 dtime, Environment *env, f32 pos_max_d,
std::vector<CollisionInfo> *collision_info)
{
Map *map = &env->getMap();
INodeDefManager *nodemgr = m_gamedef->ndef();
v3f position = getPosition();
// Copy parent position if local player is attached
if(isAttached)
{
setPosition(overridePosition);
m_sneak_node_exists = false;
return;
}
// Skip collision detection if noclip mode is used
bool fly_allowed = m_gamedef->checkLocalPrivilege("fly");
bool noclip = m_gamedef->checkLocalPrivilege("noclip") &&
g_settings->getBool("noclip");
bool free_move = noclip && fly_allowed && g_settings->getBool("free_move");
if (free_move) {
position += m_speed * dtime;
setPosition(position);
m_sneak_node_exists = false;
return;
}
/*
Collision detection
*/
bool is_valid_position;
MapNode node;
v3s16 pp;
/*
Check if player is in liquid (the oscillating value)
*/
// If in liquid, the threshold of coming out is at higher y
if (in_liquid)
{
pp = floatToInt(position + v3f(0,BS*0.1,0), BS);
node = map->getNodeNoEx(pp, &is_valid_position);
if (is_valid_position) {
in_liquid = nodemgr->get(node.getContent()).isLiquid();
liquid_viscosity = nodemgr->get(node.getContent()).liquid_viscosity;
} else {
in_liquid = false;
}
}
// If not in liquid, the threshold of going in is at lower y
else
{
pp = floatToInt(position + v3f(0,BS*0.5,0), BS);
node = map->getNodeNoEx(pp, &is_valid_position);
if (is_valid_position) {
in_liquid = nodemgr->get(node.getContent()).isLiquid();
liquid_viscosity = nodemgr->get(node.getContent()).liquid_viscosity;
} else {
in_liquid = false;
}
}
/*
Check if player is in liquid (the stable value)
*/
pp = floatToInt(position + v3f(0,0,0), BS);
node = map->getNodeNoEx(pp, &is_valid_position);
if (is_valid_position) {
in_liquid_stable = nodemgr->get(node.getContent()).isLiquid();
} else {
in_liquid_stable = false;
}
/*
Check if player is climbing
*/
pp = floatToInt(position + v3f(0,0.5*BS,0), BS);
v3s16 pp2 = floatToInt(position + v3f(0,-0.2*BS,0), BS);
node = map->getNodeNoEx(pp, &is_valid_position);
bool is_valid_position2;
MapNode node2 = map->getNodeNoEx(pp2, &is_valid_position2);
if (!(is_valid_position && is_valid_position2)) {
is_climbing = false;
} else {
is_climbing = (nodemgr->get(node.getContent()).climbable
|| nodemgr->get(node2.getContent()).climbable) && !free_move;
}
/*
Collision uncertainty radius
Make it a bit larger than the maximum distance of movement
*/
//f32 d = pos_max_d * 1.1;
// A fairly large value in here makes moving smoother
f32 d = 0.15*BS;
// This should always apply, otherwise there are glitches
sanity_check(d > pos_max_d);
// Maximum distance over border for sneaking
f32 sneak_max = BS*0.4;
/*
If sneaking, keep in range from the last walked node and don't
fall off from it
*/
if (control.sneak && m_sneak_node_exists &&
!(fly_allowed && g_settings->getBool("free_move")) && !in_liquid &&
physics_override_sneak) {
f32 maxd = 0.5 * BS + sneak_max;
v3f lwn_f = intToFloat(m_sneak_node, BS);
position.X = rangelim(position.X, lwn_f.X-maxd, lwn_f.X+maxd);
position.Z = rangelim(position.Z, lwn_f.Z-maxd, lwn_f.Z+maxd);
if (!is_climbing) {
// Move up if necessary
f32 new_y = (lwn_f.Y - 0.5 * BS) + m_sneak_node_bb_ymax;
if (position.Y < new_y)
position.Y = new_y;
/*
Collision seems broken, since player is sinking when
sneaking over the edges of current sneaking_node.
TODO (when fixed): Set Y-speed only to 0 when position.Y < new_y.
*/
if (m_speed.Y < 0)
m_speed.Y = 0;
}
}
// this shouldn't be hardcoded but transmitted from server
float player_stepheight = touching_ground ? (BS*0.6) : (BS*0.2);
#ifdef __ANDROID__
player_stepheight += (0.5 * BS);
#endif
v3f accel_f = v3f(0,0,0);
collisionMoveResult result = collisionMoveSimple(env, m_gamedef,
pos_max_d, m_collisionbox, player_stepheight, dtime,
&position, &m_speed, accel_f);
/*
If the player's feet touch the topside of any node, this is
set to true.
Player is allowed to jump when this is true.
*/
bool touching_ground_was = touching_ground;
touching_ground = result.touching_ground;
//bool standing_on_unloaded = result.standing_on_unloaded;
/*
Check the nodes under the player to see from which node the
player is sneaking from, if any. If the node from under
the player has been removed, the player falls.
*/
f32 position_y_mod = 0.05 * BS;
if (m_sneak_node_bb_ymax > 0)
position_y_mod = m_sneak_node_bb_ymax - position_y_mod;
v3s16 current_node = floatToInt(position - v3f(0, position_y_mod, 0), BS);
if (m_sneak_node_exists &&
nodemgr->get(map->getNodeNoEx(m_old_node_below)).name == "air" &&
m_old_node_below_type != "air") {
// Old node appears to have been removed; that is,
// it wasn't air before but now it is
m_need_to_get_new_sneak_node = false;
m_sneak_node_exists = false;
} else if (nodemgr->get(map->getNodeNoEx(current_node)).name != "air") {
// We are on something, so make sure to recalculate the sneak
// node.
m_need_to_get_new_sneak_node = true;
}
if (m_need_to_get_new_sneak_node && physics_override_sneak) {
m_sneak_node_bb_ymax = 0;
v3s16 pos_i_bottom = floatToInt(position - v3f(0, position_y_mod, 0), BS);
v2f player_p2df(position.X, position.Z);
f32 min_distance_f = 100000.0 * BS;
// If already seeking from some node, compare to it.
/*if(m_sneak_node_exists)
{
v3f sneaknode_pf = intToFloat(m_sneak_node, BS);
v2f sneaknode_p2df(sneaknode_pf.X, sneaknode_pf.Z);
f32 d_horiz_f = player_p2df.getDistanceFrom(sneaknode_p2df);
f32 d_vert_f = fabs(sneaknode_pf.Y + BS*0.5 - position.Y);
// Ignore if player is not on the same level (likely dropped)
if(d_vert_f < 0.15*BS)
min_distance_f = d_horiz_f;
}*/
v3s16 new_sneak_node = m_sneak_node;
for(s16 x=-1; x<=1; x++)
for(s16 z=-1; z<=1; z++)
{
v3s16 p = pos_i_bottom + v3s16(x,0,z);
v3f pf = intToFloat(p, BS);
v2f node_p2df(pf.X, pf.Z);
f32 distance_f = player_p2df.getDistanceFrom(node_p2df);
f32 max_axis_distance_f = MYMAX(
fabs(player_p2df.X-node_p2df.X),
fabs(player_p2df.Y-node_p2df.Y));
if(distance_f > min_distance_f ||
max_axis_distance_f > 0.5*BS + sneak_max + 0.1*BS)
continue;
// The node to be sneaked on has to be walkable
node = map->getNodeNoEx(p, &is_valid_position);
if (!is_valid_position || nodemgr->get(node).walkable == false)
continue;
// And the node above it has to be nonwalkable
node = map->getNodeNoEx(p + v3s16(0,1,0), &is_valid_position);
if (!is_valid_position || nodemgr->get(node).walkable) {
continue;
}
if (!physics_override_sneak_glitch) {
node =map->getNodeNoEx(p + v3s16(0,2,0), &is_valid_position);
if (!is_valid_position || nodemgr->get(node).walkable)
continue;
}
min_distance_f = distance_f;
new_sneak_node = p;
}
bool sneak_node_found = (min_distance_f < 100000.0 * BS * 0.9);
m_sneak_node = new_sneak_node;
m_sneak_node_exists = sneak_node_found;
if (sneak_node_found) {
f32 cb_max = 0;
MapNode n = map->getNodeNoEx(m_sneak_node);
std::vector<aabb3f> nodeboxes = n.getCollisionBoxes(nodemgr);
for (std::vector<aabb3f>::iterator it = nodeboxes.begin();
it != nodeboxes.end(); ++it) {
aabb3f box = *it;
if (box.MaxEdge.Y > cb_max)
cb_max = box.MaxEdge.Y;
}
m_sneak_node_bb_ymax = cb_max;
}
/*
If sneaking, the player's collision box can be in air, so
this has to be set explicitly
*/
if(sneak_node_found && control.sneak)
touching_ground = true;
}
/*
Set new position
*/
setPosition(position);
/*
Report collisions
*/
// Dont report if flying
if(collision_info && !(g_settings->getBool("free_move") && fly_allowed)) {
for(size_t i=0; i<result.collisions.size(); i++) {
const CollisionInfo &info = result.collisions[i];
collision_info->push_back(info);
}
}
if(!result.standing_on_object && !touching_ground_was && touching_ground) {
MtEvent *e = new SimpleTriggerEvent("PlayerRegainGround");
m_gamedef->event()->put(e);
// Set camera impact value to be used for view bobbing
camera_impact = getSpeed().Y * -1;
}
{
camera_barely_in_ceiling = false;
v3s16 camera_np = floatToInt(getEyePosition(), BS);
MapNode n = map->getNodeNoEx(camera_np);
if(n.getContent() != CONTENT_IGNORE){
if(nodemgr->get(n).walkable && nodemgr->get(n).solidness == 2){
camera_barely_in_ceiling = true;
}
}
}
/*
Update the node last under the player
*/
m_old_node_below = floatToInt(position - v3f(0,BS/2,0), BS);
m_old_node_below_type = nodemgr->get(map->getNodeNoEx(m_old_node_below)).name;
/*
Check properties of the node on which the player is standing
*/
const ContentFeatures &f = nodemgr->get(map->getNodeNoEx(getStandingNodePos()));
// Determine if jumping is possible
m_can_jump = touching_ground && !in_liquid;
if(itemgroup_get(f.groups, "disable_jump"))
m_can_jump = false;
// Jump key pressed while jumping off from a bouncy block
if (m_can_jump && control.jump && itemgroup_get(f.groups, "bouncy") &&
m_speed.Y >= -0.5 * BS) {
float jumpspeed = movement_speed_jump * physics_override_jump;
if (m_speed.Y > 1) {
// Reduce boost when speed already is high
m_speed.Y += jumpspeed / (1 + (m_speed.Y / 16 ));
} else {
m_speed.Y += jumpspeed;
}
setSpeed(m_speed);
m_can_jump = false;
}
}
void ClientEnvironment::step(float dtime)
{
DSTACK(FUNCTION_NAME);
/* Step time of day */
stepTimeOfDay(dtime);
// Get some settings
bool fly_allowed = m_client->checkLocalPrivilege("fly");
bool free_move = fly_allowed && g_settings->getBool("free_move");
// Get local player
LocalPlayer *lplayer = getLocalPlayer();
assert(lplayer);
// collision info queue
std::vector<CollisionInfo> player_collisions;
/*
Get the speed the player is going
*/
bool is_climbing = lplayer->is_climbing;
f32 player_speed = lplayer->getSpeed().getLength();
/*
Maximum position increment
*/
//f32 position_max_increment = 0.05*BS;
f32 position_max_increment = 0.1*BS;
// Maximum time increment (for collision detection etc)
// time = distance / speed
f32 dtime_max_increment = 1;
if(player_speed > 0.001)
dtime_max_increment = position_max_increment / player_speed;
// Maximum time increment is 10ms or lower
if(dtime_max_increment > 0.01)
dtime_max_increment = 0.01;
// Don't allow overly huge dtime
if(dtime > 0.5)
dtime = 0.5;
f32 dtime_downcount = dtime;
/*
Stuff that has a maximum time increment
*/
u32 loopcount = 0;
do
{
loopcount++;
f32 dtime_part;
if(dtime_downcount > dtime_max_increment)
{
dtime_part = dtime_max_increment;
dtime_downcount -= dtime_part;
}
else
{
dtime_part = dtime_downcount;
/*
Setting this to 0 (no -=dtime_part) disables an infinite loop
when dtime_part is so small that dtime_downcount -= dtime_part
does nothing
*/
dtime_downcount = 0;
}
/*
Handle local player
*/
{
// Apply physics
if(!free_move && !is_climbing)
{
// Gravity
v3f speed = lplayer->getSpeed();
if(!lplayer->in_liquid)
speed.Y -= lplayer->movement_gravity * lplayer->physics_override_gravity * dtime_part * 2;
// Liquid floating / sinking
if(lplayer->in_liquid && !lplayer->swimming_vertical)
speed.Y -= lplayer->movement_liquid_sink * dtime_part * 2;
// Liquid resistance
if(lplayer->in_liquid_stable || lplayer->in_liquid)
{
// How much the node's viscosity blocks movement, ranges between 0 and 1
// Should match the scale at which viscosity increase affects other liquid attributes
const f32 viscosity_factor = 0.3;
v3f d_wanted = -speed / lplayer->movement_liquid_fluidity;
f32 dl = d_wanted.getLength();
if(dl > lplayer->movement_liquid_fluidity_smooth)
dl = lplayer->movement_liquid_fluidity_smooth;
dl *= (lplayer->liquid_viscosity * viscosity_factor) + (1 - viscosity_factor);
v3f d = d_wanted.normalize() * dl;
speed += d;
}
lplayer->setSpeed(speed);
}
/*
Move the lplayer.
This also does collision detection.
*/
lplayer->move(dtime_part, this, position_max_increment,
&player_collisions);
}
}
while(dtime_downcount > 0.001);
//std::cout<<"Looped "<<loopcount<<" times."<<std::endl;
for(std::vector<CollisionInfo>::iterator i = player_collisions.begin();
i != player_collisions.end(); ++i) {
CollisionInfo &info = *i;
v3f speed_diff = info.new_speed - info.old_speed;;
// Handle only fall damage
// (because otherwise walking against something in fast_move kills you)
if(speed_diff.Y < 0 || info.old_speed.Y >= 0)
continue;
// Get rid of other components
speed_diff.X = 0;
speed_diff.Z = 0;
f32 pre_factor = 1; // 1 hp per node/s
f32 tolerance = BS*14; // 5 without damage
f32 post_factor = 1; // 1 hp per node/s
if(info.type == COLLISION_NODE)
{
const ContentFeatures &f = m_client->ndef()->
get(m_map->getNodeNoEx(info.node_p));
// Determine fall damage multiplier
int addp = itemgroup_get(f.groups, "fall_damage_add_percent");
pre_factor = 1.0 + (float)addp/100.0;
}
float speed = pre_factor * speed_diff.getLength();
if(speed > tolerance)
{
f32 damage_f = (speed - tolerance)/BS * post_factor;
u16 damage = (u16)(damage_f+0.5);
if(damage != 0){
damageLocalPlayer(damage, true);
MtEvent *e = new SimpleTriggerEvent("PlayerFallingDamage");
m_client->event()->put(e);
}
}
}
/*
A quick draft of lava damage
*/
if(m_lava_hurt_interval.step(dtime, 1.0))
{
v3f pf = lplayer->getPosition();
// Feet, middle and head
v3s16 p1 = floatToInt(pf + v3f(0, BS*0.1, 0), BS);
MapNode n1 = m_map->getNodeNoEx(p1);
v3s16 p2 = floatToInt(pf + v3f(0, BS*0.8, 0), BS);
MapNode n2 = m_map->getNodeNoEx(p2);
v3s16 p3 = floatToInt(pf + v3f(0, BS*1.6, 0), BS);
MapNode n3 = m_map->getNodeNoEx(p3);
u32 damage_per_second = 0;
damage_per_second = MYMAX(damage_per_second,
m_client->ndef()->get(n1).damage_per_second);
damage_per_second = MYMAX(damage_per_second,
m_client->ndef()->get(n2).damage_per_second);
damage_per_second = MYMAX(damage_per_second,
m_client->ndef()->get(n3).damage_per_second);
if(damage_per_second != 0)
{
damageLocalPlayer(damage_per_second, true);
}
}
// Protocol v29 make this behaviour obsolete
if (getGameDef()->getProtoVersion() < 29) {
/*
Drowning
*/
if (m_drowning_interval.step(dtime, 2.0)) {
v3f pf = lplayer->getPosition();
// head
v3s16 p = floatToInt(pf + v3f(0, BS * 1.6, 0), BS);
MapNode n = m_map->getNodeNoEx(p);
ContentFeatures c = m_client->ndef()->get(n);
u8 drowning_damage = c.drowning;
if (drowning_damage > 0 && lplayer->hp > 0) {
u16 breath = lplayer->getBreath();
if (breath > 10) {
breath = 11;
}
if (breath > 0) {
breath -= 1;
}
lplayer->setBreath(breath);
updateLocalPlayerBreath(breath);
}
if (lplayer->getBreath() == 0 && drowning_damage > 0) {
damageLocalPlayer(drowning_damage, true);
}
}
if (m_breathing_interval.step(dtime, 0.5)) {
v3f pf = lplayer->getPosition();
// head
v3s16 p = floatToInt(pf + v3f(0, BS * 1.6, 0), BS);
MapNode n = m_map->getNodeNoEx(p);
ContentFeatures c = m_client->ndef()->get(n);
if (!lplayer->hp) {
lplayer->setBreath(11);
} else if (c.drowning == 0) {
u16 breath = lplayer->getBreath();
if (breath <= 10) {
breath += 1;
lplayer->setBreath(breath);
updateLocalPlayerBreath(breath);
}
}
}
}
// Update lighting on local player (used for wield item)
u32 day_night_ratio = getDayNightRatio();
{
// Get node at head
// On InvalidPositionException, use this as default
// (day: LIGHT_SUN, night: 0)
MapNode node_at_lplayer(CONTENT_AIR, 0x0f, 0);
v3s16 p = lplayer->getLightPosition();
node_at_lplayer = m_map->getNodeNoEx(p);
u16 light = getInteriorLight(node_at_lplayer, 0, m_client->ndef());
final_color_blend(&lplayer->light_color, light, day_night_ratio);
}
/*
Step active objects and update lighting of them
*/
g_profiler->avg("CEnv: num of objects", m_active_objects.size());
bool update_lighting = m_active_object_light_update_interval.step(dtime, 0.21);
for (UNORDERED_MAP<u16, ClientActiveObject*>::iterator i = m_active_objects.begin();
i != m_active_objects.end(); ++i) {
ClientActiveObject* obj = i->second;
// Step object
obj->step(dtime, this);
if(update_lighting)
{
// Update lighting
u8 light = 0;
bool pos_ok;
// Get node at head
v3s16 p = obj->getLightPosition();
MapNode n = m_map->getNodeNoEx(p, &pos_ok);
if (pos_ok)
light = n.getLightBlend(day_night_ratio, m_client->ndef());
else
light = blend_light(day_night_ratio, LIGHT_SUN, 0);
obj->updateLight(light);
}
}
/*
Step and handle simple objects
*/
g_profiler->avg("CEnv: num of simple objects", m_simple_objects.size());
for(std::vector<ClientSimpleObject*>::iterator
i = m_simple_objects.begin(); i != m_simple_objects.end();) {
std::vector<ClientSimpleObject*>::iterator cur = i;
ClientSimpleObject *simple = *cur;
simple->step(dtime);
if(simple->m_to_be_removed) {
delete simple;
i = m_simple_objects.erase(cur);
}
else {
++i;
}
}
}
void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d,
std::list<CollisionInfo> *collision_info)
{
INodeDefManager *nodemgr = m_gamedef->ndef();
v3f position = getPosition();
v3f old_speed = m_speed;
// Copy parent position if local player is attached
if(isAttached)
{
setPosition(overridePosition);
return;
}
// Skip collision detection if noclip mode is used
bool fly_allowed = m_gamedef->checkLocalPrivilege("fly");
bool noclip = m_gamedef->checkLocalPrivilege("noclip") &&
g_settings->getBool("noclip");
bool free_move = noclip && fly_allowed && g_settings->getBool("free_move");
if(free_move)
{
position += m_speed * dtime;
setPosition(position);
return;
}
/*
Collision detection
*/
/*
Check if player is in liquid (the oscillating value)
*/
try{
// If in liquid, the threshold of coming out is at higher y
if(in_liquid)
{
v3s16 pp = floatToInt(position + v3f(0,BS*0.1,0), BS);
in_liquid = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
liquid_viscosity = nodemgr->get(map.getNode(pp).getContent()).liquid_viscosity;
}
// If not in liquid, the threshold of going in is at lower y
else
{
v3s16 pp = floatToInt(position + v3f(0,BS*0.5,0), BS);
in_liquid = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
liquid_viscosity = nodemgr->get(map.getNode(pp).getContent()).liquid_viscosity;
}
}
catch(InvalidPositionException &e)
{
in_liquid = false;
}
/*
Check if player is in liquid (the stable value)
*/
try{
v3s16 pp = floatToInt(position + v3f(0,0,0), BS);
in_liquid_stable = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
}
catch(InvalidPositionException &e)
{
in_liquid_stable = false;
}
/*
Check if player is climbing
*/
try {
v3s16 pp = floatToInt(position + v3f(0,0.5*BS,0), BS);
v3s16 pp2 = floatToInt(position + v3f(0,-0.2*BS,0), BS);
is_climbing = ((nodemgr->get(map.getNode(pp).getContent()).climbable ||
nodemgr->get(map.getNode(pp2).getContent()).climbable) && !free_move);
}
catch(InvalidPositionException &e)
{
is_climbing = false;
}
/*
Collision uncertainty radius
Make it a bit larger than the maximum distance of movement
*/
//f32 d = pos_max_d * 1.1;
// A fairly large value in here makes moving smoother
f32 d = 0.15*BS;
// This should always apply, otherwise there are glitches
assert(d > pos_max_d);
float player_radius = BS*0.30;
float player_height = BS*1.55;
// Maximum distance over border for sneaking
f32 sneak_max = BS*0.4;
/*
If sneaking, keep in range from the last walked node and don't
fall off from it
*/
if(control.sneak && m_sneak_node_exists && !(fly_allowed && g_settings->getBool("free_move")) && !in_liquid)
{
f32 maxd = 0.5*BS + sneak_max;
v3f lwn_f = intToFloat(m_sneak_node, BS);
position.X = rangelim(position.X, lwn_f.X-maxd, lwn_f.X+maxd);
position.Z = rangelim(position.Z, lwn_f.Z-maxd, lwn_f.Z+maxd);
if(!is_climbing)
{
f32 min_y = lwn_f.Y + 0.5*BS;
if(position.Y < min_y)
{
position.Y = min_y;
if(m_speed.Y < 0)
m_speed.Y = 0;
}
}
}
/*
Calculate player collision box (new and old)
*/
core::aabbox3d<f32> playerbox(
-player_radius,
0.0,
-player_radius,
player_radius,
player_height,
player_radius
);
float player_stepheight = touching_ground ? (BS*0.6) : (BS*0.2);
v3f accel_f = v3f(0,0,0);
collisionMoveResult result = collisionMoveSimple(&map, m_gamedef,
pos_max_d, playerbox, player_stepheight, dtime,
position, m_speed, accel_f);
/*
If the player's feet touch the topside of any node, this is
set to true.
Player is allowed to jump when this is true.
*/
bool touching_ground_was = touching_ground;
touching_ground = result.touching_ground;
//bool standing_on_unloaded = result.standing_on_unloaded;
/*
Check the nodes under the player to see from which node the
player is sneaking from, if any. If the node from under
the player has been removed, the player falls.
*/
v3s16 current_node = floatToInt(position - v3f(0,BS/2,0), BS);
if(m_sneak_node_exists &&
nodemgr->get(map.getNodeNoEx(m_old_node_below)).name == "air" &&
m_old_node_below_type != "air")
{
// Old node appears to have been removed; that is,
// it wasn't air before but now it is
m_need_to_get_new_sneak_node = false;
m_sneak_node_exists = false;
}
else if(nodemgr->get(map.getNodeNoEx(current_node)).name != "air")
{
// We are on something, so make sure to recalculate the sneak
// node.
m_need_to_get_new_sneak_node = true;
}
if(m_need_to_get_new_sneak_node)
{
v3s16 pos_i_bottom = floatToInt(position - v3f(0,BS/2,0), BS);
v2f player_p2df(position.X, position.Z);
f32 min_distance_f = 100000.0*BS;
// If already seeking from some node, compare to it.
/*if(m_sneak_node_exists)
{
v3f sneaknode_pf = intToFloat(m_sneak_node, BS);
v2f sneaknode_p2df(sneaknode_pf.X, sneaknode_pf.Z);
f32 d_horiz_f = player_p2df.getDistanceFrom(sneaknode_p2df);
f32 d_vert_f = fabs(sneaknode_pf.Y + BS*0.5 - position.Y);
// Ignore if player is not on the same level (likely dropped)
if(d_vert_f < 0.15*BS)
min_distance_f = d_horiz_f;
}*/
v3s16 new_sneak_node = m_sneak_node;
for(s16 x=-1; x<=1; x++)
for(s16 z=-1; z<=1; z++)
{
v3s16 p = pos_i_bottom + v3s16(x,0,z);
v3f pf = intToFloat(p, BS);
v2f node_p2df(pf.X, pf.Z);
f32 distance_f = player_p2df.getDistanceFrom(node_p2df);
f32 max_axis_distance_f = MYMAX(
fabs(player_p2df.X-node_p2df.X),
fabs(player_p2df.Y-node_p2df.Y));
if(distance_f > min_distance_f ||
max_axis_distance_f > 0.5*BS + sneak_max + 0.1*BS)
continue;
try{
// The node to be sneaked on has to be walkable
if(nodemgr->get(map.getNode(p)).walkable == false)
continue;
// And the node above it has to be nonwalkable
if(nodemgr->get(map.getNode(p+v3s16(0,1,0))).walkable == true)
continue;
}
catch(InvalidPositionException &e)
{
continue;
}
min_distance_f = distance_f;
new_sneak_node = p;
}
bool sneak_node_found = (min_distance_f < 100000.0*BS*0.9);
m_sneak_node = new_sneak_node;
m_sneak_node_exists = sneak_node_found;
/*
If sneaking, the player's collision box can be in air, so
this has to be set explicitly
*/
if(sneak_node_found && control.sneak)
touching_ground = true;
}
/*
Set new position
*/
setPosition(position);
/*
Report collisions
*/
bool bouncy_jump = false;
// Dont report if flying
if(collision_info && !(g_settings->getBool("free_move") && fly_allowed))
{
for(size_t i=0; i<result.collisions.size(); i++){
const CollisionInfo &info = result.collisions[i];
collision_info->push_back(info);
if(info.new_speed.Y - info.old_speed.Y > 0.1*BS &&
info.bouncy)
bouncy_jump = true;
}
}
if(bouncy_jump && control.jump){
m_speed.Y += movement_speed_jump*BS;
touching_ground = false;
MtEvent *e = new SimpleTriggerEvent("PlayerJump");
m_gamedef->event()->put(e);
}
if(!touching_ground_was && touching_ground){
MtEvent *e = new SimpleTriggerEvent("PlayerRegainGround");
m_gamedef->event()->put(e);
}
{
camera_barely_in_ceiling = false;
v3s16 camera_np = floatToInt(getEyePosition(), BS);
MapNode n = map.getNodeNoEx(camera_np);
if(n.getContent() != CONTENT_IGNORE){
if(nodemgr->get(n).walkable && nodemgr->get(n).solidness == 2){
camera_barely_in_ceiling = true;
}
}
}
/*
Update the node last under the player
*/
m_old_node_below = floatToInt(position - v3f(0,BS/2,0), BS);
m_old_node_below_type = nodemgr->get(map.getNodeNoEx(m_old_node_below)).name;
/*
Check properties of the node on which the player is standing
*/
const ContentFeatures &f = nodemgr->get(map.getNodeNoEx(getStandingNodePos()));
// Determine if jumping is possible
m_can_jump = touching_ground && !in_liquid;
if(itemgroup_get(f.groups, "disable_jump"))
m_can_jump = false;
}
void FallingSAO::step(float dtime, bool send_recommended)
{
// Object pending removal, skip
if (m_removed || !m_env) {
return;
}
// If no texture, remove it
if (m_prop.textures.empty()) {
m_removed = true;
return;
}
LuaEntitySAO::step(dtime, send_recommended);
INodeDefManager* ndef = m_env->getGameDef()->getNodeDefManager();
m_acceleration = v3f(0,-10*BS,0);
// Under node, center
v3f p_under(m_base_position.X, m_base_position.Y - 7, m_base_position.Z);
v3s16 p = floatToInt(m_base_position, BS);
/*
bool cur_exists = false, under_exists = false;
*/
MapNode n = m_env->getMap().getNode(p),
n_under = m_env->getMap().getNode(floatToInt(p_under, BS));
const ContentFeatures &f = ndef->get(n), &f_under = ndef->get(n_under);
bool cur_exists = n, under_exists = n_under;
// Mapblock current or under is not loaded, stop there
if (!n || !cur_exists || !under_exists) {
return;
}
if ((f_under.walkable || (itemgroup_get(f_under.groups, "float") &&
f_under.liquid_type == LIQUID_NONE))) {
if (f_under.leveled && f_under.name.compare(f.name) == 0) {
u8 addLevel = n.getLevel(ndef);
if (addLevel == 0) {
addLevel = n_under.getLevel(ndef);
}
if (n_under.addLevel(ndef, addLevel)) {
m_removed = true;
return;
}
}
else if (f_under.buildable_to &&
(itemgroup_get(f.groups,"float") == 0 ||
f_under.liquid_type == LIQUID_NONE)) {
m_env->removeNode(floatToInt(p_under, BS), fast);
return;
}
if (n.getContent() != CONTENT_AIR &&
(f.liquid_type == LIQUID_NONE)) {
m_env->removeNode(p);
if (!f.buildable_to) {
ItemStack stack;
std::string n_name = ndef->get(m_node).name;
stack.deSerialize(n_name);
m_env->spawnItemActiveObject(n_name, m_base_position, stack);
}
}
m_env->setNode(p, m_node, fast);
m_removed = true;
m_env->nodeUpdate(p, 2, fast);
return;
}
}
void LocalPlayer::applyControl(float dtime, ClientEnvironment *env)
{
// Clear stuff
swimming_vertical = false;
setPitch(control.pitch);
setYaw(control.yaw);
// Nullify speed and don't run positioning code if the player is attached
if(isAttached)
{
setSpeed(v3f(0,0,0));
return;
}
v3f move_direction = v3f(0,0,1);
move_direction.rotateXZBy(getYaw());
v3f speedH = v3f(0,0,0); // Horizontal (X, Z)
v3f speedV = v3f(0,0,0); // Vertical (Y)
bool fly_allowed = m_gamedef->checkLocalPrivilege("fly");
bool fast_allowed = m_gamedef->checkLocalPrivilege("fast");
free_move = fly_allowed && g_settings->getBool("free_move");
bool fast_move = fast_allowed && g_settings->getBool("fast_move");
// When aux1_descends is enabled the fast key is used to go down, so fast isn't possible
bool fast_climb = fast_move && control.aux1 && !g_settings->getBool("aux1_descends");
bool continuous_forward = g_settings->getBool("continuous_forward");
bool fast_pressed = false;
bool always_fly_fast = g_settings->getBool("always_fly_fast");
// Whether superspeed mode is used or not
superspeed = false;
if (always_fly_fast && free_move && fast_move)
superspeed = true;
// Old descend control
if(g_settings->getBool("aux1_descends"))
{
// If free movement and fast movement, always move fast
if(free_move && fast_move)
superspeed = true;
// Auxiliary button 1 (E)
if(control.aux1)
{
if(free_move)
{
// In free movement mode, aux1 descends
if(fast_move)
speedV.Y = -movement_speed_fast;
else
speedV.Y = -movement_speed_walk;
}
else if(in_liquid || in_liquid_stable)
{
speedV.Y = -movement_speed_walk;
swimming_vertical = true;
}
else if(is_climbing)
{
speedV.Y = -movement_speed_climb;
}
else
{
// If not free movement but fast is allowed, aux1 is
// "Turbo button"
if(fast_allowed)
superspeed = true;
}
}
}
// New minecraft-like descend control
else
{
// Auxiliary button 1 (E)
if(control.aux1)
{
if(!is_climbing)
{
// aux1 is "Turbo button"
if(fast_allowed)
superspeed = true;
}
if(fast_allowed)
fast_pressed = true;
}
if(control.sneak)
{
if(free_move)
{
// In free movement mode, sneak descends
if (fast_move && (control.aux1 || always_fly_fast))
speedV.Y = -movement_speed_fast;
else
speedV.Y = -movement_speed_walk;
}
else if(in_liquid || in_liquid_stable)
{
if(fast_climb)
speedV.Y = -movement_speed_fast;
else
speedV.Y = -movement_speed_walk;
swimming_vertical = true;
}
else if(is_climbing)
{
if(fast_climb)
speedV.Y = -movement_speed_fast;
else
speedV.Y = -movement_speed_climb;
}
}
}
if (continuous_forward)
speedH += move_direction;
if (control.up) {
if (continuous_forward) {
if (fast_move)
superspeed = true;
} else {
speedH += move_direction;
}
}
if(control.down)
{
speedH -= move_direction;
}
if(control.left)
{
speedH += move_direction.crossProduct(v3f(0,1,0));
}
if(control.right)
{
speedH += move_direction.crossProduct(v3f(0,-1,0));
}
if(control.jump)
{
if (free_move) {
if (g_settings->getBool("aux1_descends") || always_fly_fast) {
if (fast_move)
speedV.Y = movement_speed_fast;
else
speedV.Y = movement_speed_walk;
} else {
if(fast_move && control.aux1)
speedV.Y = movement_speed_fast;
else
speedV.Y = movement_speed_walk;
}
}
else if(m_can_jump)
{
/*
NOTE: The d value in move() affects jump height by
raising the height at which the jump speed is kept
at its starting value
*/
v3f speedJ = getSpeed();
if(speedJ.Y >= -0.5 * BS)
{
speedJ.Y = movement_speed_jump * physics_override_jump;
setSpeed(speedJ);
MtEvent *e = new SimpleTriggerEvent("PlayerJump");
m_gamedef->event()->put(e);
}
}
else if(in_liquid)
{
if(fast_climb)
speedV.Y = movement_speed_fast;
else
speedV.Y = movement_speed_walk;
swimming_vertical = true;
}
else if(is_climbing)
{
if(fast_climb)
speedV.Y = movement_speed_fast;
else
speedV.Y = movement_speed_climb;
}
}
// The speed of the player (Y is ignored)
if(superspeed || (is_climbing && fast_climb) || ((in_liquid || in_liquid_stable) && fast_climb) || fast_pressed)
speedH = speedH.normalize() * movement_speed_fast;
else if(control.sneak && !free_move && !in_liquid && !in_liquid_stable)
speedH = speedH.normalize() * movement_speed_crouch;
else
speedH = speedH.normalize() * movement_speed_walk;
// Acceleration increase
f32 incH = 0; // Horizontal (X, Z)
f32 incV = 0; // Vertical (Y)
if((!touching_ground && !free_move && !is_climbing && !in_liquid) || (!free_move && m_can_jump && control.jump))
{
// Jumping and falling
if(superspeed || (fast_move && control.aux1))
incH = movement_acceleration_fast * BS * dtime;
else
incH = movement_acceleration_air * BS * dtime;
incV = 0; // No vertical acceleration in air
// better air control when falling fast
float speed = m_speed.getLength();
if (!superspeed && speed > movement_speed_fast && (control.down || control.up || control.left || control.right)) {
v3f rotate = move_direction * (speed / (movement_fall_aerodynamics * BS));
if(control.up) rotate = rotate.crossProduct(v3f(0,1,0));
if(control.down) rotate = rotate.crossProduct(v3f(0,-1,0));
if(control.left) rotate *=-1;
m_speed.rotateYZBy(rotate.X);
m_speed.rotateXZBy(rotate.Y);
m_speed.rotateXYBy(rotate.Z);
m_speed = m_speed.normalize() * speed * (1-speed*0.00001); // 0.998
if (m_speed.Y)
return;
}
}
else if (superspeed || (is_climbing && fast_climb) || ((in_liquid || in_liquid_stable) && fast_climb))
incH = incV = movement_acceleration_fast * BS * dtime;
else
incH = incV = movement_acceleration_default * BS * dtime;
// Accelerate to target speed with maximum increment
INodeDefManager *nodemgr = m_gamedef->ndef();
Map *map = &env->getMap();
v3s16 p = floatToInt(getPosition() - v3f(0,BS/2,0), BS);
float slippery = 0;
try {
slippery = itemgroup_get(nodemgr->get(map->getNode(p)).groups, "slippery");
}
catch (...) {}
accelerateHorizontal(speedH * physics_override_speed, incH * physics_override_speed, slippery);
accelerateVertical(speedV * physics_override_speed, incV * physics_override_speed);
}
collisionMoveResult collisionMoveSimple(Environment *env, IGameDef *gamedef,
f32 pos_max_d, const aabb3f &box_0,
f32 stepheight, f32 dtime,
v3f *pos_f, v3f *speed_f,
v3f accel_f, ActiveObject *self,
bool collideWithObjects)
{
static bool time_notification_done = false;
Map *map = &env->getMap();
//TimeTaker tt("collisionMoveSimple");
ScopeProfiler sp(g_profiler, "collisionMoveSimple avg", SPT_AVG);
collisionMoveResult result;
/*
Calculate new velocity
*/
if (dtime > 0.5f) {
if (!time_notification_done) {
time_notification_done = true;
infostream << "collisionMoveSimple: maximum step interval exceeded,"
" lost movement details!"<<std::endl;
}
dtime = 0.5f;
} else {
time_notification_done = false;
}
*speed_f += accel_f * dtime;
// If there is no speed, there are no collisions
if (speed_f->getLength() == 0)
return result;
// Limit speed for avoiding hangs
speed_f->Y = rangelim(speed_f->Y, -5000, 5000);
speed_f->X = rangelim(speed_f->X, -5000, 5000);
speed_f->Z = rangelim(speed_f->Z, -5000, 5000);
/*
Collect node boxes in movement range
*/
std::vector<NearbyCollisionInfo> cinfo;
{
//TimeTaker tt2("collisionMoveSimple collect boxes");
ScopeProfiler sp2(g_profiler, "collisionMoveSimple collect boxes avg", SPT_AVG);
v3f newpos_f = *pos_f + *speed_f * dtime;
v3f minpos_f(
MYMIN(pos_f->X, newpos_f.X),
MYMIN(pos_f->Y, newpos_f.Y) + 0.01f * BS, // bias rounding, player often at +/-n.5
MYMIN(pos_f->Z, newpos_f.Z)
);
v3f maxpos_f(
MYMAX(pos_f->X, newpos_f.X),
MYMAX(pos_f->Y, newpos_f.Y),
MYMAX(pos_f->Z, newpos_f.Z)
);
v3s16 min = floatToInt(minpos_f + box_0.MinEdge, BS) - v3s16(1, 1, 1);
v3s16 max = floatToInt(maxpos_f + box_0.MaxEdge, BS) + v3s16(1, 1, 1);
bool any_position_valid = false;
v3s16 p;
for (p.X = min.X; p.X <= max.X; p.X++)
for (p.Y = min.Y; p.Y <= max.Y; p.Y++)
for (p.Z = min.Z; p.Z <= max.Z; p.Z++) {
bool is_position_valid;
MapNode n = map->getNodeNoEx(p, &is_position_valid);
if (is_position_valid && n.getContent() != CONTENT_IGNORE) {
// Object collides into walkable nodes
any_position_valid = true;
const NodeDefManager *nodedef = gamedef->getNodeDefManager();
const ContentFeatures &f = nodedef->get(n);
if (!f.walkable)
continue;
int n_bouncy_value = itemgroup_get(f.groups, "bouncy");
int neighbors = 0;
if (f.drawtype == NDT_NODEBOX &&
f.node_box.type == NODEBOX_CONNECTED) {
v3s16 p2 = p;
p2.Y++;
getNeighborConnectingFace(p2, nodedef, map, n, 1, &neighbors);
p2 = p;
p2.Y--;
getNeighborConnectingFace(p2, nodedef, map, n, 2, &neighbors);
p2 = p;
p2.Z--;
getNeighborConnectingFace(p2, nodedef, map, n, 4, &neighbors);
p2 = p;
p2.X--;
getNeighborConnectingFace(p2, nodedef, map, n, 8, &neighbors);
p2 = p;
p2.Z++;
getNeighborConnectingFace(p2, nodedef, map, n, 16, &neighbors);
p2 = p;
p2.X++;
getNeighborConnectingFace(p2, nodedef, map, n, 32, &neighbors);
}
std::vector<aabb3f> nodeboxes;
n.getCollisionBoxes(gamedef->ndef(), &nodeboxes, neighbors);
// Calculate float position only once
v3f posf = intToFloat(p, BS);
for (auto box : nodeboxes) {
box.MinEdge += posf;
box.MaxEdge += posf;
cinfo.emplace_back(false, false, n_bouncy_value, p, box);
}
} else {
// Collide with unloaded nodes (position invalid) and loaded
// CONTENT_IGNORE nodes (position valid)
aabb3f box = getNodeBox(p, BS);
cinfo.emplace_back(true, false, 0, p, box);
}
}
// Do not move if world has not loaded yet, since custom node boxes
// are not available for collision detection.
// This also intentionally occurs in the case of the object being positioned
// solely on loaded CONTENT_IGNORE nodes, no matter where they come from.
if (!any_position_valid) {
*speed_f = v3f(0, 0, 0);
return result;
}
} // tt2
if(collideWithObjects)
{
ScopeProfiler sp2(g_profiler, "collisionMoveSimple objects avg", SPT_AVG);
//TimeTaker tt3("collisionMoveSimple collect object boxes");
/* add object boxes to cinfo */
std::vector<ActiveObject*> objects;
#ifndef SERVER
ClientEnvironment *c_env = dynamic_cast<ClientEnvironment*>(env);
if (c_env != 0) {
f32 distance = speed_f->getLength();
std::vector<DistanceSortedActiveObject> clientobjects;
c_env->getActiveObjects(*pos_f, distance * 1.5f, clientobjects);
for (auto &clientobject : clientobjects) {
if (!self || (self != clientobject.obj)) {
objects.push_back((ActiveObject*) clientobject.obj);
}
}
}
else
#endif
{
ServerEnvironment *s_env = dynamic_cast<ServerEnvironment*>(env);
if (s_env != NULL) {
f32 distance = speed_f->getLength();
std::vector<u16> s_objects;
s_env->getObjectsInsideRadius(s_objects, *pos_f, distance * 1.5f);
for (u16 obj_id : s_objects) {
ServerActiveObject *current = s_env->getActiveObject(obj_id);
if (!self || (self != current)) {
objects.push_back((ActiveObject*)current);
}
}
}
}
for (std::vector<ActiveObject*>::const_iterator iter = objects.begin();
iter != objects.end(); ++iter) {
ActiveObject *object = *iter;
if (object) {
aabb3f object_collisionbox;
if (object->getCollisionBox(&object_collisionbox) &&
object->collideWithObjects()) {
cinfo.emplace_back(false, true, 0, v3s16(), object_collisionbox);
}
}
}
} //tt3
/*
Collision detection
*/
/*
Collision uncertainty radius
Make it a bit larger than the maximum distance of movement
*/
f32 d = pos_max_d * 1.1f;
// A fairly large value in here makes moving smoother
//f32 d = 0.15*BS;
// This should always apply, otherwise there are glitches
assert(d > pos_max_d); // invariant
int loopcount = 0;
while(dtime > BS * 1e-10f) {
//TimeTaker tt3("collisionMoveSimple dtime loop");
ScopeProfiler sp2(g_profiler, "collisionMoveSimple dtime loop avg", SPT_AVG);
// Avoid infinite loop
loopcount++;
if (loopcount >= 100) {
warningstream << "collisionMoveSimple: Loop count exceeded, aborting to avoid infiniite loop" << std::endl;
break;
}
aabb3f movingbox = box_0;
movingbox.MinEdge += *pos_f;
movingbox.MaxEdge += *pos_f;
int nearest_collided = -1;
f32 nearest_dtime = dtime;
int nearest_boxindex = -1;
/*
Go through every nodebox, find nearest collision
*/
for (u32 boxindex = 0; boxindex < cinfo.size(); boxindex++) {
const NearbyCollisionInfo &box_info = cinfo[boxindex];
// Ignore if already stepped up this nodebox.
if (box_info.is_step_up)
continue;
// Find nearest collision of the two boxes (raytracing-like)
f32 dtime_tmp;
int collided = axisAlignedCollision(box_info.box,
movingbox, *speed_f, d, &dtime_tmp);
if (collided == -1 || dtime_tmp >= nearest_dtime)
continue;
nearest_dtime = dtime_tmp;
nearest_collided = collided;
nearest_boxindex = boxindex;
}
if (nearest_collided == -1) {
// No collision with any collision box.
*pos_f += *speed_f * dtime;
dtime = 0; // Set to 0 to avoid "infinite" loop due to small FP numbers
} else {
// Otherwise, a collision occurred.
NearbyCollisionInfo &nearest_info = cinfo[nearest_boxindex];
const aabb3f& cbox = nearest_info.box;
// Check for stairs.
bool step_up = (nearest_collided != 1) && // must not be Y direction
(movingbox.MinEdge.Y < cbox.MaxEdge.Y) &&
(movingbox.MinEdge.Y + stepheight > cbox.MaxEdge.Y) &&
(!wouldCollideWithCeiling(cinfo, movingbox,
cbox.MaxEdge.Y - movingbox.MinEdge.Y,
d));
// Get bounce multiplier
float bounce = -(float)nearest_info.bouncy / 100.0f;
// Move to the point of collision and reduce dtime by nearest_dtime
if (nearest_dtime < 0) {
// Handle negative nearest_dtime (can be caused by the d allowance)
if (!step_up) {
if (nearest_collided == 0)
pos_f->X += speed_f->X * nearest_dtime;
if (nearest_collided == 1)
pos_f->Y += speed_f->Y * nearest_dtime;
if (nearest_collided == 2)
pos_f->Z += speed_f->Z * nearest_dtime;
}
} else {
*pos_f += *speed_f * nearest_dtime;
dtime -= nearest_dtime;
}
bool is_collision = true;
if (nearest_info.is_unloaded)
is_collision = false;
CollisionInfo info;
if (nearest_info.is_object)
info.type = COLLISION_OBJECT;
else
info.type = COLLISION_NODE;
info.node_p = nearest_info.position;
info.old_speed = *speed_f;
// Set the speed component that caused the collision to zero
if (step_up) {
// Special case: Handle stairs
nearest_info.is_step_up = true;
is_collision = false;
} else if (nearest_collided == 0) { // X
if (fabs(speed_f->X) > BS * 3)
speed_f->X *= bounce;
else
speed_f->X = 0;
result.collides = true;
} else if (nearest_collided == 1) { // Y
if(fabs(speed_f->Y) > BS * 3)
speed_f->Y *= bounce;
else
speed_f->Y = 0;
result.collides = true;
} else if (nearest_collided == 2) { // Z
if (fabs(speed_f->Z) > BS * 3)
speed_f->Z *= bounce;
else
speed_f->Z = 0;
result.collides = true;
}
info.new_speed = *speed_f;
if (info.new_speed.getDistanceFrom(info.old_speed) < 0.1f * BS)
is_collision = false;
if (is_collision) {
result.collisions.push_back(info);
}
}
}
/*
Final touches: Check if standing on ground, step up stairs.
*/
aabb3f box = box_0;
box.MinEdge += *pos_f;
box.MaxEdge += *pos_f;
for (const auto &box_info : cinfo) {
const aabb3f &cbox = box_info.box;
/*
See if the object is touching ground.
Object touches ground if object's minimum Y is near node's
maximum Y and object's X-Z-area overlaps with the node's
X-Z-area.
Use 0.15*BS so that it is easier to get on a node.
*/
if (cbox.MaxEdge.X - d > box.MinEdge.X && cbox.MinEdge.X + d < box.MaxEdge.X &&
cbox.MaxEdge.Z - d > box.MinEdge.Z &&
cbox.MinEdge.Z + d < box.MaxEdge.Z) {
if (box_info.is_step_up) {
pos_f->Y += cbox.MaxEdge.Y - box.MinEdge.Y;
box = box_0;
box.MinEdge += *pos_f;
box.MaxEdge += *pos_f;
}
if (std::fabs(cbox.MaxEdge.Y - box.MinEdge.Y) < 0.15f * BS) {
result.touching_ground = true;
if (box_info.is_object)
result.standing_on_object = true;
}
}
}
return result;
}
void LocalPlayer::move(f32 dtime, Environment *env, f32 pos_max_d,
std::vector<CollisionInfo> *collision_info)
{
if (!collision_info || collision_info->empty()) {
// Node below the feet, update each ClientEnvironment::step()
m_standing_node = floatToInt(m_position, BS) - v3s16(0, 1, 0);
}
// Temporary option for old move code
if (!physics_override_new_move) {
old_move(dtime, env, pos_max_d, collision_info);
return;
}
Map *map = &env->getMap();
INodeDefManager *nodemgr = m_client->ndef();
v3f position = getPosition();
// Copy parent position if local player is attached
if (isAttached) {
setPosition(overridePosition);
return;
}
// Skip collision detection if noclip mode is used
bool fly_allowed = m_client->checkLocalPrivilege("fly");
bool noclip = m_client->checkLocalPrivilege("noclip") &&
g_settings->getBool("noclip");
bool free_move = g_settings->getBool("free_move") && fly_allowed;
if (noclip && free_move) {
position += m_speed * dtime;
setPosition(position);
return;
}
/*
Collision detection
*/
bool is_valid_position;
MapNode node;
v3s16 pp;
/*
Check if player is in liquid (the oscillating value)
*/
// If in liquid, the threshold of coming out is at higher y
if (in_liquid)
{
pp = floatToInt(position + v3f(0,BS*0.1,0), BS);
node = map->getNodeNoEx(pp, &is_valid_position);
if (is_valid_position) {
in_liquid = nodemgr->get(node.getContent()).isLiquid();
liquid_viscosity = nodemgr->get(node.getContent()).liquid_viscosity;
} else {
in_liquid = false;
}
}
// If not in liquid, the threshold of going in is at lower y
else
{
pp = floatToInt(position + v3f(0,BS*0.5,0), BS);
node = map->getNodeNoEx(pp, &is_valid_position);
if (is_valid_position) {
in_liquid = nodemgr->get(node.getContent()).isLiquid();
liquid_viscosity = nodemgr->get(node.getContent()).liquid_viscosity;
} else {
in_liquid = false;
}
}
/*
Check if player is in liquid (the stable value)
*/
pp = floatToInt(position + v3f(0,0,0), BS);
node = map->getNodeNoEx(pp, &is_valid_position);
if (is_valid_position) {
in_liquid_stable = nodemgr->get(node.getContent()).isLiquid();
} else {
in_liquid_stable = false;
}
/*
Check if player is climbing
*/
pp = floatToInt(position + v3f(0,0.5*BS,0), BS);
v3s16 pp2 = floatToInt(position + v3f(0,-0.2*BS,0), BS);
node = map->getNodeNoEx(pp, &is_valid_position);
bool is_valid_position2;
MapNode node2 = map->getNodeNoEx(pp2, &is_valid_position2);
if (!(is_valid_position && is_valid_position2)) {
is_climbing = false;
} else {
is_climbing = (nodemgr->get(node.getContent()).climbable
|| nodemgr->get(node2.getContent()).climbable) && !free_move;
}
/*
Collision uncertainty radius
Make it a bit larger than the maximum distance of movement
*/
//f32 d = pos_max_d * 1.1;
// A fairly large value in here makes moving smoother
f32 d = 0.15*BS;
// This should always apply, otherwise there are glitches
sanity_check(d > pos_max_d);
// Player object property step height is multiplied by BS in
// /src/script/common/c_content.cpp and /src/content_sao.cpp
float player_stepheight = (m_cao == nullptr) ? 0.0f :
(touching_ground ? m_cao->getStepHeight() : (0.2f * BS));
// TODO this is a problematic hack.
// Use a better implementation for autojump, or apply a custom stepheight
// to all players, as this currently creates unintended special movement
// abilities and advantages for Android players on a server.
#ifdef __ANDROID__
if (touching_ground)
player_stepheight += (0.6f * BS);
#endif
v3f accel_f = v3f(0,0,0);
collisionMoveResult result = collisionMoveSimple(env, m_client,
pos_max_d, m_collisionbox, player_stepheight, dtime,
&position, &m_speed, accel_f);
bool could_sneak = control.sneak && !free_move && !in_liquid &&
!is_climbing && physics_override_sneak;
// Add new collisions to the vector
if (collision_info && !free_move) {
v3f diff = intToFloat(m_standing_node, BS) - position;
f32 distance = diff.getLength();
// Force update each ClientEnvironment::step()
bool is_first = collision_info->empty();
for (const auto &colinfo : result.collisions) {
collision_info->push_back(colinfo);
if (colinfo.type != COLLISION_NODE ||
colinfo.new_speed.Y != 0 ||
(could_sneak && m_sneak_node_exists))
continue;
diff = intToFloat(colinfo.node_p, BS) - position;
// Find nearest colliding node
f32 len = diff.getLength();
if (is_first || len < distance) {
m_standing_node = colinfo.node_p;
distance = len;
}
}
}
/*
If the player's feet touch the topside of any node, this is
set to true.
Player is allowed to jump when this is true.
*/
bool touching_ground_was = touching_ground;
touching_ground = result.touching_ground;
bool sneak_can_jump = false;
// Max. distance (X, Z) over border for sneaking determined by collision box
// * 0.49 to keep the center just barely on the node
v3f sneak_max = m_collisionbox.getExtent() * 0.49;
if (m_sneak_ladder_detected) {
// restore legacy behaviour (this makes the m_speed.Y hack necessary)
sneak_max = v3f(0.4 * BS, 0, 0.4 * BS);
}
/*
If sneaking, keep on top of last walked node and don't fall off
*/
if (could_sneak && m_sneak_node_exists) {
const v3f sn_f = intToFloat(m_sneak_node, BS);
const v3f bmin = sn_f + m_sneak_node_bb_top.MinEdge;
const v3f bmax = sn_f + m_sneak_node_bb_top.MaxEdge;
const v3f old_pos = position;
const v3f old_speed = m_speed;
f32 y_diff = bmax.Y - position.Y;
m_standing_node = m_sneak_node;
// (BS * 0.6f) is the basic stepheight while standing on ground
if (y_diff < BS * 0.6f) {
// Only center player when they're on the node
position.X = rangelim(position.X,
bmin.X - sneak_max.X, bmax.X + sneak_max.X);
position.Z = rangelim(position.Z,
bmin.Z - sneak_max.Z, bmax.Z + sneak_max.Z);
if (position.X != old_pos.X)
m_speed.X = 0;
if (position.Z != old_pos.Z)
m_speed.Z = 0;
}
if (y_diff > 0 && m_speed.Y < 0 &&
(physics_override_sneak_glitch || y_diff < BS * 0.6f)) {
// Move player to the maximal height when falling or when
// the ledge is climbed on the next step.
position.Y = bmax.Y;
m_speed.Y = 0;
}
// Allow jumping on node edges while sneaking
if (m_speed.Y == 0 || m_sneak_ladder_detected)
sneak_can_jump = true;
if (collision_info &&
m_speed.Y - old_speed.Y > BS) {
// Collide with sneak node, report fall damage
CollisionInfo sn_info;
sn_info.node_p = m_sneak_node;
sn_info.old_speed = old_speed;
sn_info.new_speed = m_speed;
collision_info->push_back(sn_info);
}
}
/*
Find the next sneak node if necessary
*/
bool new_sneak_node_exists = false;
if (could_sneak)
new_sneak_node_exists = updateSneakNode(map, position, sneak_max);
/*
Set new position but keep sneak node set
*/
setPosition(position);
m_sneak_node_exists = new_sneak_node_exists;
/*
Report collisions
*/
if(!result.standing_on_object && !touching_ground_was && touching_ground) {
MtEvent *e = new SimpleTriggerEvent("PlayerRegainGround");
m_client->event()->put(e);
// Set camera impact value to be used for view bobbing
camera_impact = getSpeed().Y * -1;
}
{
camera_barely_in_ceiling = false;
v3s16 camera_np = floatToInt(getEyePosition(), BS);
MapNode n = map->getNodeNoEx(camera_np);
if(n.getContent() != CONTENT_IGNORE){
if(nodemgr->get(n).walkable && nodemgr->get(n).solidness == 2){
camera_barely_in_ceiling = true;
}
}
}
/*
Check properties of the node on which the player is standing
*/
const ContentFeatures &f = nodemgr->get(map->getNodeNoEx(m_standing_node));
// Determine if jumping is possible
m_can_jump = (touching_ground && !in_liquid && !is_climbing)
|| sneak_can_jump;
if (itemgroup_get(f.groups, "disable_jump"))
m_can_jump = false;
// Jump key pressed while jumping off from a bouncy block
if (m_can_jump && control.jump && itemgroup_get(f.groups, "bouncy") &&
m_speed.Y >= -0.5 * BS) {
float jumpspeed = movement_speed_jump * physics_override_jump;
if (m_speed.Y > 1) {
// Reduce boost when speed already is high
m_speed.Y += jumpspeed / (1 + (m_speed.Y / 16 ));
} else {
m_speed.Y += jumpspeed;
}
setSpeed(m_speed);
m_can_jump = false;
}
}