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Diffstat (limited to 'scene/2d/physical_bone_2d.cpp')
| -rw-r--r-- | scene/2d/physical_bone_2d.cpp | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/scene/2d/physical_bone_2d.cpp b/scene/2d/physical_bone_2d.cpp new file mode 100644 index 0000000000..d547914e16 --- /dev/null +++ b/scene/2d/physical_bone_2d.cpp @@ -0,0 +1,307 @@ +/*************************************************************************/ +/* physical_bone_2d.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#include "physical_bone_2d.h" + +void PhysicalBone2D::_notification(int p_what) { + switch (p_what) { + case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: { + // Position the RigidBody in the correct position. + if (follow_bone_when_simulating) { + _position_at_bone2d(); + } + + // Keep the child joint in the correct position. + if (child_joint && auto_configure_joint) { + child_joint->set_global_position(get_global_position()); + } + } break; + + case NOTIFICATION_READY: { + _find_skeleton_parent(); + _find_joint_child(); + + // Configure joint. + if (child_joint && auto_configure_joint) { + _auto_configure_joint(); + } + + // Simulate physics if set. + if (simulate_physics) { + _start_physics_simulation(); + } else { + _stop_physics_simulation(); + } + + set_physics_process_internal(true); + } break; + } +} + +void PhysicalBone2D::_position_at_bone2d() { + // Reset to Bone2D position + if (parent_skeleton) { + Bone2D *bone_to_use = parent_skeleton->get_bone(bone2d_index); + ERR_FAIL_COND_MSG(bone_to_use == nullptr, "It's not possible to position the bone with ID: " + itos(bone2d_index)); + set_global_transform(bone_to_use->get_global_transform()); + } +} + +void PhysicalBone2D::_find_skeleton_parent() { + Node *current_parent = get_parent(); + + while (current_parent != nullptr) { + Skeleton2D *potential_skeleton = Object::cast_to<Skeleton2D>(current_parent); + if (potential_skeleton) { + parent_skeleton = potential_skeleton; + break; + } else { + PhysicalBone2D *potential_parent_bone = Object::cast_to<PhysicalBone2D>(current_parent); + if (potential_parent_bone) { + current_parent = potential_parent_bone->get_parent(); + } else { + current_parent = nullptr; + } + } + } +} + +void PhysicalBone2D::_find_joint_child() { + for (int i = 0; i < get_child_count(); i++) { + Node *child_node = get_child(i); + Joint2D *potential_joint = Object::cast_to<Joint2D>(child_node); + if (potential_joint) { + child_joint = potential_joint; + break; + } + } +} + +TypedArray<String> PhysicalBone2D::get_configuration_warnings() const { + TypedArray<String> warnings = Node::get_configuration_warnings(); + + if (!parent_skeleton) { + warnings.push_back(TTR("A PhysicalBone2D only works with a Skeleton2D or another PhysicalBone2D as a parent node!")); + } + if (parent_skeleton && bone2d_index <= -1) { + warnings.push_back(TTR("A PhysicalBone2D needs to be assigned to a Bone2D node in order to function! Please set a Bone2D node in the inspector.")); + } + if (!child_joint) { + PhysicalBone2D *parent_bone = Object::cast_to<PhysicalBone2D>(get_parent()); + if (parent_bone) { + warnings.push_back(TTR("A PhysicalBone2D node should have a Joint2D-based child node to keep bones connected! Please add a Joint2D-based node as a child to this node!")); + } + } + + return warnings; +} + +void PhysicalBone2D::_auto_configure_joint() { + if (!auto_configure_joint) { + return; + } + + if (child_joint) { + // Node A = parent | Node B = this node + Node *parent_node = get_parent(); + PhysicalBone2D *potential_parent_bone = Object::cast_to<PhysicalBone2D>(parent_node); + + if (potential_parent_bone) { + child_joint->set_node_a(child_joint->get_path_to(potential_parent_bone)); + child_joint->set_node_b(child_joint->get_path_to(this)); + } else { + WARN_PRINT("Cannot setup joint without a parent PhysicalBone2D node."); + } + + // Place the child joint at this node's position. + child_joint->set_global_position(get_global_position()); + } +} + +void PhysicalBone2D::_start_physics_simulation() { + if (_internal_simulate_physics) { + return; + } + + // Reset to Bone2D position + _position_at_bone2d(); + + // Apply the layers and masks + PhysicsServer2D::get_singleton()->body_set_collision_layer(get_rid(), get_collision_layer()); + PhysicsServer2D::get_singleton()->body_set_collision_mask(get_rid(), get_collision_mask()); + + // Apply the correct mode + RigidBody2D::Mode rigid_mode = get_mode(); + if (rigid_mode == RigidBody2D::MODE_STATIC) { + set_body_mode(PhysicsServer2D::BODY_MODE_STATIC); + } else if (rigid_mode == RigidBody2D::MODE_DYNAMIC) { + set_body_mode(PhysicsServer2D::BODY_MODE_DYNAMIC); + } else if (rigid_mode == RigidBody2D::MODE_KINEMATIC) { + set_body_mode(PhysicsServer2D::BODY_MODE_KINEMATIC); + } else if (rigid_mode == RigidBody2D::MODE_DYNAMIC_LOCKED) { + set_body_mode(PhysicsServer2D::BODY_MODE_DYNAMIC_LOCKED); + } else { + // Default to Dynamic. + set_body_mode(PhysicsServer2D::BODY_MODE_DYNAMIC); + } + + _internal_simulate_physics = true; + set_physics_process_internal(true); +} + +void PhysicalBone2D::_stop_physics_simulation() { + if (_internal_simulate_physics) { + _internal_simulate_physics = false; + + // Reset to Bone2D position + _position_at_bone2d(); + + set_physics_process_internal(false); + PhysicsServer2D::get_singleton()->body_set_collision_layer(get_rid(), 0); + PhysicsServer2D::get_singleton()->body_set_collision_mask(get_rid(), 0); + PhysicsServer2D::get_singleton()->body_set_mode(get_rid(), PhysicsServer2D::BodyMode::BODY_MODE_STATIC); + } +} + +Joint2D *PhysicalBone2D::get_joint() const { + return child_joint; +} + +bool PhysicalBone2D::get_auto_configure_joint() const { + return auto_configure_joint; +} + +void PhysicalBone2D::set_auto_configure_joint(bool p_auto_configure) { + auto_configure_joint = p_auto_configure; + _auto_configure_joint(); +} + +void PhysicalBone2D::set_simulate_physics(bool p_simulate) { + if (p_simulate == simulate_physics) { + return; + } + simulate_physics = p_simulate; + + if (simulate_physics) { + _start_physics_simulation(); + } else { + _stop_physics_simulation(); + } +} + +bool PhysicalBone2D::get_simulate_physics() const { + return simulate_physics; +} + +bool PhysicalBone2D::is_simulating_physics() const { + return _internal_simulate_physics; +} + +void PhysicalBone2D::set_bone2d_nodepath(const NodePath &p_nodepath) { + bone2d_nodepath = p_nodepath; + notify_property_list_changed(); +} + +NodePath PhysicalBone2D::get_bone2d_nodepath() const { + return bone2d_nodepath; +} + +void PhysicalBone2D::set_bone2d_index(int p_bone_idx) { + ERR_FAIL_COND_MSG(p_bone_idx < 0, "Bone index is out of range: The index is too low!"); + + if (!is_inside_tree()) { + bone2d_index = p_bone_idx; + return; + } + + if (parent_skeleton) { + ERR_FAIL_INDEX_MSG(p_bone_idx, parent_skeleton->get_bone_count(), "Passed-in Bone index is out of range!"); + bone2d_index = p_bone_idx; + + bone2d_nodepath = get_path_to(parent_skeleton->get_bone(bone2d_index)); + } else { + WARN_PRINT("Cannot verify bone index..."); + bone2d_index = p_bone_idx; + } + + notify_property_list_changed(); +} + +int PhysicalBone2D::get_bone2d_index() const { + return bone2d_index; +} + +void PhysicalBone2D::set_follow_bone_when_simulating(bool p_follow_bone) { + follow_bone_when_simulating = p_follow_bone; + + if (_internal_simulate_physics) { + _stop_physics_simulation(); + _start_physics_simulation(); + } +} + +bool PhysicalBone2D::get_follow_bone_when_simulating() const { + return follow_bone_when_simulating; +} + +void PhysicalBone2D::_bind_methods() { + ClassDB::bind_method(D_METHOD("get_joint"), &PhysicalBone2D::get_joint); + ClassDB::bind_method(D_METHOD("get_auto_configure_joint"), &PhysicalBone2D::get_auto_configure_joint); + ClassDB::bind_method(D_METHOD("set_auto_configure_joint", "auto_configure_joint"), &PhysicalBone2D::set_auto_configure_joint); + + ClassDB::bind_method(D_METHOD("set_simulate_physics", "simulate_physics"), &PhysicalBone2D::set_simulate_physics); + ClassDB::bind_method(D_METHOD("get_simulate_physics"), &PhysicalBone2D::get_simulate_physics); + ClassDB::bind_method(D_METHOD("is_simulating_physics"), &PhysicalBone2D::is_simulating_physics); + + ClassDB::bind_method(D_METHOD("set_bone2d_nodepath", "nodepath"), &PhysicalBone2D::set_bone2d_nodepath); + ClassDB::bind_method(D_METHOD("get_bone2d_nodepath"), &PhysicalBone2D::get_bone2d_nodepath); + ClassDB::bind_method(D_METHOD("set_bone2d_index", "bone_index"), &PhysicalBone2D::set_bone2d_index); + ClassDB::bind_method(D_METHOD("get_bone2d_index"), &PhysicalBone2D::get_bone2d_index); + ClassDB::bind_method(D_METHOD("set_follow_bone_when_simulating", "follow_bone"), &PhysicalBone2D::set_follow_bone_when_simulating); + ClassDB::bind_method(D_METHOD("get_follow_bone_when_simulating"), &PhysicalBone2D::get_follow_bone_when_simulating); + + ADD_PROPERTY(PropertyInfo(Variant::NODE_PATH, "bone2d_nodepath", PROPERTY_HINT_NODE_PATH_VALID_TYPES, "Bone2D"), "set_bone2d_nodepath", "get_bone2d_nodepath"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "bone2d_index", PROPERTY_HINT_RANGE, "-1, 1000, 1"), "set_bone2d_index", "get_bone2d_index"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "auto_configure_joint"), "set_auto_configure_joint", "get_auto_configure_joint"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "simulate_physics"), "set_simulate_physics", "get_simulate_physics"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "follow_bone_when_simulating"), "set_follow_bone_when_simulating", "get_follow_bone_when_simulating"); +} + +PhysicalBone2D::PhysicalBone2D() { + // Stop the RigidBody from executing its force integration. + PhysicsServer2D::get_singleton()->body_set_collision_layer(get_rid(), 0); + PhysicsServer2D::get_singleton()->body_set_collision_mask(get_rid(), 0); + PhysicsServer2D::get_singleton()->body_set_mode(get_rid(), PhysicsServer2D::BodyMode::BODY_MODE_STATIC); + + child_joint = nullptr; +} + +PhysicalBone2D::~PhysicalBone2D() { +} |