// get_node_max_level(pos)
// pos = {x=num, y=num, z=num}
int ModApiEnvMod::l_get_node_max_level(lua_State *L)
{
GET_ENV_PTR;
v3s16 pos = read_v3s16(L, 1);
MapNode n = env->getMap().getNodeNoEx(pos);
lua_pushnumber(L, n.getMaxLevel(env->getGameDef()->ndef()));
return 1;
}
// get_node_max_level(pos)
// pos = {x=num, y=num, z=num}
int ModApiEnvMod::l_get_node_max_level(lua_State *L)
{
Environment *env = getEnv(L);
if (!env) {
return 0;
}
v3s16 pos = read_v3s16(L, 1);
MapNode n = env->getMap().getNodeNoEx(pos);
lua_pushnumber(L, n.getMaxLevel(env->getGameDef()->ndef()));
return 1;
}
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();
//v3f old_speed = m_speed;
// 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)
{
// If not in liquid, the threshold of going in is at lower y
pp = floatToInt(position + v3f(0,BS*(in_liquid ? 0.1 : 0.5),0), BS);
node = map->getNodeNoEx(pp, &is_valid_position);
if (is_valid_position) {
auto f = nodemgr->get(node.getContent());
in_liquid = f.isLiquid();
liquid_viscosity = f.liquid_viscosity;
if (f.param_type_2 == CPT2_LEVELED) {
float level = node.getLevel(nodemgr);
float maxlevel = node.getMaxLevel(nodemgr);
if (level && maxlevel && level < maxlevel)
liquid_viscosity /= maxlevel / level;
}
} 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 {
bool can_climbing = (nodemgr->get(node.getContent()).climbable
|| nodemgr->get(node2.getContent()).climbable) && !free_move;
if (m_speed.Y >= -PLAYER_FALL_TOLERANCE_SPEED)
is_climbing = can_climbing;
else if (can_climbing)
m_speed.Y += 0.3*BS;
}
/*
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 && !got_teleported) {
f32 maxd = 0.5 * BS + sneak_max;
v3f lwn_f = intToFloat(m_sneak_node, BS);
auto old_pos = position;
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 (old_pos != position) {
m_speed.X = rangelim(m_speed.X, -movement_speed_climb, movement_speed_climb);
m_speed.Z = rangelim(m_speed.Z, -movement_speed_climb, movement_speed_climb);
}
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 && m_speed.Y >= -PLAYER_FALL_TOLERANCE_SPEED)
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 < -PLAYER_FALL_TOLERANCE_SPEED)
m_speed.Y += 0.3*BS;
else
if (m_speed.Y < 0)
m_speed.Y = 0;
}
}
if (got_teleported)
got_teleported = false;
// this shouldn't be hardcoded but transmitted from server
float player_stepheight = touching_ground ? (BS*0.6) : (BS*0.2);
static const auto autojump = g_settings->getBool("autojump");
if (control.aux1 || autojump) {
player_stepheight += (0.6 * BS);
}
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, &nodeboxes);
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;
}
}