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Add support for controlling physics nodes' behavior when disabled

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New property disable_mode to set different behaviors:
Remove: remove from physics simulation
MakeStatic: change body mode to static (doesn't affect area and soft body)
KeepActive: do nothing

Extra change:
Handle disable/enable node state with specific notifications, in order
to differentiate global pause from disabled nodes.
This commit is contained in:
PouleyKetchoupp
2021-06-17 18:09:40 -07:00
parent 92f20fd70e
commit 5cbdc7a0ac
16 changed files with 638 additions and 198 deletions
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48
scene/main/node.cpp
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@@ -402,6 +402,7 @@ void Node::set_process_mode(ProcessMode p_mode) {
}
bool prev_can_process = can_process();
bool prev_enabled = _is_enabled();
data.process_mode = p_mode;
@@ -416,6 +417,7 @@ void Node::set_process_mode(ProcessMode p_mode) {
}
bool next_can_process = can_process();
bool next_enabled = _is_enabled();
int pause_notification = 0;
@@ -425,7 +427,16 @@ void Node::set_process_mode(ProcessMode p_mode) {
pause_notification = NOTIFICATION_UNPAUSED;
}
_propagate_process_owner(data.process_owner, pause_notification);
int enabled_notification = 0;
if (prev_enabled && !next_enabled) {
enabled_notification = NOTIFICATION_DISABLED;
} else if (!prev_enabled && next_enabled) {
enabled_notification = NOTIFICATION_ENABLED;
}
_propagate_process_owner(data.process_owner, pause_notification, enabled_notification);
#ifdef TOOLS_ENABLED
// This is required for the editor to update the visibility of disabled nodes
// It's very expensive during runtime to change, so editor-only
@@ -454,17 +465,21 @@ Node::ProcessMode Node::get_process_mode() const {
return data.process_mode;
}
void Node::_propagate_process_owner(Node *p_owner, int p_notification) {
void Node::_propagate_process_owner(Node *p_owner, int p_pause_notification, int p_enabled_notification) {
data.process_owner = p_owner;
if (p_notification != 0) {
notification(p_notification);
if (p_pause_notification != 0) {
notification(p_pause_notification);
}
if (p_enabled_notification != 0) {
notification(p_enabled_notification);
}
for (int i = 0; i < data.children.size(); i++) {
Node *c = data.children[i];
if (c->data.process_mode == PROCESS_MODE_INHERIT) {
c->_propagate_process_owner(p_owner, p_notification);
c->_propagate_process_owner(p_owner, p_pause_notification, p_enabled_notification);
}
}
}
@@ -668,6 +683,27 @@ bool Node::_can_process(bool p_paused) const {
}
}
bool Node::_is_enabled() const {
ProcessMode process_mode;
if (data.process_mode == PROCESS_MODE_INHERIT) {
if (!data.process_owner) {
process_mode = PROCESS_MODE_PAUSABLE;
} else {
process_mode = data.process_owner->data.process_mode;
}
} else {
process_mode = data.process_mode;
}
return (process_mode != PROCESS_MODE_DISABLED);
}
bool Node::is_enabled() const {
ERR_FAIL_COND_V(!is_inside_tree(), false);
return _is_enabled();
}
float Node::get_physics_process_delta_time() const {
if (data.tree) {
return data.tree->get_physics_process_time();
@@ -2619,6 +2655,8 @@ void Node::_bind_methods() {
BIND_CONSTANT(NOTIFICATION_INTERNAL_PROCESS);
BIND_CONSTANT(NOTIFICATION_INTERNAL_PHYSICS_PROCESS);
BIND_CONSTANT(NOTIFICATION_POST_ENTER_TREE);
BIND_CONSTANT(NOTIFICATION_DISABLED);
BIND_CONSTANT(NOTIFICATION_ENABLED);
BIND_CONSTANT(NOTIFICATION_EDITOR_PRE_SAVE);
BIND_CONSTANT(NOTIFICATION_EDITOR_POST_SAVE);