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836 lines
36 KiB
C++
836 lines
36 KiB
C++
/**************************************************************************/
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/* look_at_modifier_3d.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "look_at_modifier_3d.h"
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void LookAtModifier3D::_validate_property(PropertyInfo &p_property) const {
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SkeletonModifier3D::_validate_property(p_property);
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if (p_property.name == "bone_name" || p_property.name == "origin_bone_name") {
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Skeleton3D *skeleton = get_skeleton();
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if (skeleton) {
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p_property.hint = PROPERTY_HINT_ENUM;
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p_property.hint_string = skeleton->get_concatenated_bone_names();
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} else {
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p_property.hint = PROPERTY_HINT_NONE;
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p_property.hint_string = "";
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}
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}
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if (origin_from == ORIGIN_FROM_SPECIFIC_BONE) {
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if (p_property.name == "origin_external_node") {
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p_property.usage = PROPERTY_USAGE_NONE;
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}
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} else if (origin_from == ORIGIN_FROM_EXTERNAL_NODE) {
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if (p_property.name == "origin_bone" || p_property.name == "origin_bone_name") {
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p_property.usage = PROPERTY_USAGE_NONE;
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}
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} else {
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if (p_property.name == "origin_external_node" || p_property.name == "origin_bone" || p_property.name == "origin_bone_name") {
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p_property.usage = PROPERTY_USAGE_NONE;
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}
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}
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if ((!use_angle_limitation &&
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(p_property.name == "symmetry_limitation" || p_property.name.ends_with("limit_angle") || p_property.name.ends_with("damp_threshold"))) ||
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(!use_secondary_rotation && p_property.name.begins_with("secondary_")) ||
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(!symmetry_limitation && (p_property.name == "primary_limit_angle" || p_property.name == "primary_damp_threshold" || p_property.name == "secondary_limit_angle" || p_property.name == "secondary_damp_threshold")) ||
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(symmetry_limitation && (p_property.name.begins_with("primary_positive") || p_property.name.begins_with("primary_negative") || p_property.name.begins_with("secondary_positive") || (p_property.name.begins_with("secondary_negative"))))) {
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p_property.usage = PROPERTY_USAGE_NONE;
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}
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}
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PackedStringArray LookAtModifier3D::get_configuration_warnings() const {
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PackedStringArray warnings = SkeletonModifier3D::get_configuration_warnings();
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if (get_axis_from_bone_axis(forward_axis) == primary_rotation_axis) {
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warnings.push_back(RTR("Forward axis and primary rotation axis must not be parallel."));
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}
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return warnings;
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}
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void LookAtModifier3D::set_bone_name(const String &p_bone_name) {
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bone_name = p_bone_name;
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Skeleton3D *sk = get_skeleton();
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if (sk) {
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set_bone(sk->find_bone(bone_name));
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}
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}
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String LookAtModifier3D::get_bone_name() const {
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return bone_name;
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}
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void LookAtModifier3D::set_bone(int p_bone) {
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bone = p_bone;
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Skeleton3D *sk = get_skeleton();
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if (sk) {
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if (bone <= -1 || bone >= sk->get_bone_count()) {
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WARN_PRINT("Bone index out of range!");
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bone = -1;
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} else {
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bone_name = sk->get_bone_name(bone);
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}
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}
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}
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int LookAtModifier3D::get_bone() const {
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return bone;
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}
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void LookAtModifier3D::set_forward_axis(BoneAxis p_axis) {
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forward_axis = p_axis;
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update_configuration_warnings();
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}
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LookAtModifier3D::BoneAxis LookAtModifier3D::get_forward_axis() const {
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return forward_axis;
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}
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void LookAtModifier3D::set_primary_rotation_axis(Vector3::Axis p_axis) {
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primary_rotation_axis = p_axis;
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update_configuration_warnings();
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}
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Vector3::Axis LookAtModifier3D::get_primary_rotation_axis() const {
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return primary_rotation_axis;
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}
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void LookAtModifier3D::set_use_secondary_rotation(bool p_enabled) {
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use_secondary_rotation = p_enabled;
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notify_property_list_changed();
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}
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bool LookAtModifier3D::is_using_secondary_rotation() const {
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return use_secondary_rotation;
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}
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void LookAtModifier3D::set_target_node(const NodePath &p_target_node) {
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if (target_node != p_target_node) {
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init_transition();
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}
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target_node = p_target_node;
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}
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NodePath LookAtModifier3D::get_target_node() const {
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return target_node;
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}
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// For origin settings.
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void LookAtModifier3D::set_origin_from(OriginFrom p_origin_from) {
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origin_from = p_origin_from;
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notify_property_list_changed();
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}
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LookAtModifier3D::OriginFrom LookAtModifier3D::get_origin_from() const {
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return origin_from;
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}
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void LookAtModifier3D::set_origin_bone_name(const String &p_bone_name) {
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origin_bone_name = p_bone_name;
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Skeleton3D *sk = get_skeleton();
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if (sk) {
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set_origin_bone(sk->find_bone(origin_bone_name));
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}
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}
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String LookAtModifier3D::get_origin_bone_name() const {
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return origin_bone_name;
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}
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void LookAtModifier3D::set_origin_bone(int p_bone) {
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origin_bone = p_bone;
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Skeleton3D *sk = get_skeleton();
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if (sk) {
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if (origin_bone <= -1 || origin_bone >= sk->get_bone_count()) {
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WARN_PRINT("Bone index out of range!");
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origin_bone = -1;
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} else {
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origin_bone_name = sk->get_bone_name(origin_bone);
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}
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}
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}
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int LookAtModifier3D::get_origin_bone() const {
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return origin_bone;
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}
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void LookAtModifier3D::set_origin_external_node(const NodePath &p_external_node) {
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origin_external_node = p_external_node;
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}
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NodePath LookAtModifier3D::get_origin_external_node() const {
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return origin_external_node;
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}
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void LookAtModifier3D::set_origin_offset(const Vector3 &p_offset) {
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origin_offset = p_offset;
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}
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Vector3 LookAtModifier3D::get_origin_offset() const {
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return origin_offset;
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}
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void LookAtModifier3D::set_origin_safe_margin(float p_margin) {
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origin_safe_margin = p_margin;
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}
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float LookAtModifier3D::get_origin_safe_margin() const {
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return origin_safe_margin;
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}
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// For time-based interpolation.
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void LookAtModifier3D::set_duration(float p_duration) {
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duration = p_duration;
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if (Math::is_zero_approx(p_duration)) {
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time_step = 0;
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remaining = 0;
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} else {
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time_step = 1.0 / p_duration; // Cache to avoid division.
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}
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}
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float LookAtModifier3D::get_duration() const {
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return duration;
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}
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void LookAtModifier3D::set_transition_type(Tween::TransitionType p_transition_type) {
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transition_type = p_transition_type;
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}
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Tween::TransitionType LookAtModifier3D::get_transition_type() const {
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return transition_type;
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}
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void LookAtModifier3D::set_ease_type(Tween::EaseType p_ease_type) {
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ease_type = p_ease_type;
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}
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Tween::EaseType LookAtModifier3D::get_ease_type() const {
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return ease_type;
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}
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// For angle limitation.
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void LookAtModifier3D::set_use_angle_limitation(bool p_enabled) {
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use_angle_limitation = p_enabled;
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notify_property_list_changed();
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}
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bool LookAtModifier3D::is_using_angle_limitation() const {
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return use_angle_limitation;
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}
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void LookAtModifier3D::set_symmetry_limitation(bool p_enabled) {
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symmetry_limitation = p_enabled;
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notify_property_list_changed();
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}
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bool LookAtModifier3D::is_limitation_symmetry() const {
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return symmetry_limitation;
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}
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void LookAtModifier3D::set_primary_limit_angle(float p_angle) {
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primary_limit_angle = p_angle;
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}
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float LookAtModifier3D::get_primary_limit_angle() const {
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return primary_limit_angle;
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}
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void LookAtModifier3D::set_primary_damp_threshold(float p_power) {
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primary_damp_threshold = p_power;
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}
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float LookAtModifier3D::get_primary_damp_threshold() const {
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return primary_damp_threshold;
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}
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void LookAtModifier3D::set_primary_positive_limit_angle(float p_angle) {
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primary_positive_limit_angle = p_angle;
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}
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float LookAtModifier3D::get_primary_positive_limit_angle() const {
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return primary_positive_limit_angle;
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}
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void LookAtModifier3D::set_primary_positive_damp_threshold(float p_power) {
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primary_positive_damp_threshold = p_power;
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}
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float LookAtModifier3D::get_primary_positive_damp_threshold() const {
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return primary_positive_damp_threshold;
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}
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void LookAtModifier3D::set_primary_negative_limit_angle(float p_angle) {
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primary_negative_limit_angle = p_angle;
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}
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float LookAtModifier3D::get_primary_negative_limit_angle() const {
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return primary_negative_limit_angle;
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}
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void LookAtModifier3D::set_primary_negative_damp_threshold(float p_power) {
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primary_negative_damp_threshold = p_power;
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}
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float LookAtModifier3D::get_primary_negative_damp_threshold() const {
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return primary_negative_damp_threshold;
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}
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void LookAtModifier3D::set_secondary_limit_angle(float p_angle) {
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secondary_limit_angle = p_angle;
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}
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float LookAtModifier3D::get_secondary_limit_angle() const {
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return secondary_limit_angle;
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}
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void LookAtModifier3D::set_secondary_damp_threshold(float p_power) {
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secondary_damp_threshold = p_power;
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}
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float LookAtModifier3D::get_secondary_damp_threshold() const {
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return secondary_damp_threshold;
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}
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void LookAtModifier3D::set_secondary_positive_limit_angle(float p_angle) {
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secondary_positive_limit_angle = p_angle;
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}
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float LookAtModifier3D::get_secondary_positive_limit_angle() const {
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return secondary_positive_limit_angle;
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}
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void LookAtModifier3D::set_secondary_positive_damp_threshold(float p_power) {
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secondary_positive_damp_threshold = p_power;
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}
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float LookAtModifier3D::get_secondary_positive_damp_threshold() const {
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return secondary_positive_damp_threshold;
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}
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void LookAtModifier3D::set_secondary_negative_limit_angle(float p_angle) {
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secondary_negative_limit_angle = p_angle;
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}
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float LookAtModifier3D::get_secondary_negative_limit_angle() const {
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return secondary_negative_limit_angle;
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}
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void LookAtModifier3D::set_secondary_negative_damp_threshold(float p_power) {
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secondary_negative_damp_threshold = p_power;
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}
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float LookAtModifier3D::get_secondary_negative_damp_threshold() const {
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return secondary_negative_damp_threshold;
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}
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bool LookAtModifier3D::is_target_within_limitation() const {
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return is_within_limitations;
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}
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float LookAtModifier3D::get_interpolation_remaining() const {
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return remaining * duration;
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}
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bool LookAtModifier3D::is_interpolating() const {
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return Math::is_zero_approx(remaining);
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}
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// General API.
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void LookAtModifier3D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_target_node", "target_node"), &LookAtModifier3D::set_target_node);
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ClassDB::bind_method(D_METHOD("get_target_node"), &LookAtModifier3D::get_target_node);
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ClassDB::bind_method(D_METHOD("set_bone_name", "bone_name"), &LookAtModifier3D::set_bone_name);
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ClassDB::bind_method(D_METHOD("get_bone_name"), &LookAtModifier3D::get_bone_name);
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ClassDB::bind_method(D_METHOD("set_bone", "bone"), &LookAtModifier3D::set_bone);
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ClassDB::bind_method(D_METHOD("get_bone"), &LookAtModifier3D::get_bone);
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ClassDB::bind_method(D_METHOD("set_forward_axis", "forward_axis"), &LookAtModifier3D::set_forward_axis);
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ClassDB::bind_method(D_METHOD("get_forward_axis"), &LookAtModifier3D::get_forward_axis);
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ClassDB::bind_method(D_METHOD("set_primary_rotation_axis", "axis"), &LookAtModifier3D::set_primary_rotation_axis);
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ClassDB::bind_method(D_METHOD("get_primary_rotation_axis"), &LookAtModifier3D::get_primary_rotation_axis);
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ClassDB::bind_method(D_METHOD("set_use_secondary_rotation", "enabled"), &LookAtModifier3D::set_use_secondary_rotation);
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ClassDB::bind_method(D_METHOD("is_using_secondary_rotation"), &LookAtModifier3D::is_using_secondary_rotation);
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ClassDB::bind_method(D_METHOD("set_origin_safe_margin", "margin"), &LookAtModifier3D::set_origin_safe_margin);
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ClassDB::bind_method(D_METHOD("get_origin_safe_margin"), &LookAtModifier3D::get_origin_safe_margin);
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ClassDB::bind_method(D_METHOD("set_origin_from", "origin_from"), &LookAtModifier3D::set_origin_from);
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ClassDB::bind_method(D_METHOD("get_origin_from"), &LookAtModifier3D::get_origin_from);
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ClassDB::bind_method(D_METHOD("set_origin_bone_name", "bone_name"), &LookAtModifier3D::set_origin_bone_name);
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ClassDB::bind_method(D_METHOD("get_origin_bone_name"), &LookAtModifier3D::get_origin_bone_name);
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ClassDB::bind_method(D_METHOD("set_origin_bone", "bone"), &LookAtModifier3D::set_origin_bone);
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ClassDB::bind_method(D_METHOD("get_origin_bone"), &LookAtModifier3D::get_origin_bone);
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ClassDB::bind_method(D_METHOD("set_origin_external_node", "external_node"), &LookAtModifier3D::set_origin_external_node);
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ClassDB::bind_method(D_METHOD("get_origin_external_node"), &LookAtModifier3D::get_origin_external_node);
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ClassDB::bind_method(D_METHOD("set_origin_offset", "offset"), &LookAtModifier3D::set_origin_offset);
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ClassDB::bind_method(D_METHOD("get_origin_offset"), &LookAtModifier3D::get_origin_offset);
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ClassDB::bind_method(D_METHOD("set_duration", "duration"), &LookAtModifier3D::set_duration);
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ClassDB::bind_method(D_METHOD("get_duration"), &LookAtModifier3D::get_duration);
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ClassDB::bind_method(D_METHOD("set_transition_type", "transition_type"), &LookAtModifier3D::set_transition_type);
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ClassDB::bind_method(D_METHOD("get_transition_type"), &LookAtModifier3D::get_transition_type);
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ClassDB::bind_method(D_METHOD("set_ease_type", "ease_type"), &LookAtModifier3D::set_ease_type);
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ClassDB::bind_method(D_METHOD("get_ease_type"), &LookAtModifier3D::get_ease_type);
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ClassDB::bind_method(D_METHOD("set_use_angle_limitation", "enabled"), &LookAtModifier3D::set_use_angle_limitation);
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ClassDB::bind_method(D_METHOD("is_using_angle_limitation"), &LookAtModifier3D::is_using_angle_limitation);
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ClassDB::bind_method(D_METHOD("set_symmetry_limitation", "enabled"), &LookAtModifier3D::set_symmetry_limitation);
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ClassDB::bind_method(D_METHOD("is_limitation_symmetry"), &LookAtModifier3D::is_limitation_symmetry);
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ClassDB::bind_method(D_METHOD("set_primary_limit_angle", "angle"), &LookAtModifier3D::set_primary_limit_angle);
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ClassDB::bind_method(D_METHOD("get_primary_limit_angle"), &LookAtModifier3D::get_primary_limit_angle);
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ClassDB::bind_method(D_METHOD("set_primary_damp_threshold", "power"), &LookAtModifier3D::set_primary_damp_threshold);
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ClassDB::bind_method(D_METHOD("get_primary_damp_threshold"), &LookAtModifier3D::get_primary_damp_threshold);
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ClassDB::bind_method(D_METHOD("set_primary_positive_limit_angle", "angle"), &LookAtModifier3D::set_primary_positive_limit_angle);
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ClassDB::bind_method(D_METHOD("get_primary_positive_limit_angle"), &LookAtModifier3D::get_primary_positive_limit_angle);
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ClassDB::bind_method(D_METHOD("set_primary_positive_damp_threshold", "power"), &LookAtModifier3D::set_primary_positive_damp_threshold);
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ClassDB::bind_method(D_METHOD("get_primary_positive_damp_threshold"), &LookAtModifier3D::get_primary_positive_damp_threshold);
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ClassDB::bind_method(D_METHOD("set_primary_negative_limit_angle", "angle"), &LookAtModifier3D::set_primary_negative_limit_angle);
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ClassDB::bind_method(D_METHOD("get_primary_negative_limit_angle"), &LookAtModifier3D::get_primary_negative_limit_angle);
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ClassDB::bind_method(D_METHOD("set_primary_negative_damp_threshold", "power"), &LookAtModifier3D::set_primary_negative_damp_threshold);
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ClassDB::bind_method(D_METHOD("get_primary_negative_damp_threshold"), &LookAtModifier3D::get_primary_negative_damp_threshold);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_secondary_limit_angle", "angle"), &LookAtModifier3D::set_secondary_limit_angle);
|
|
ClassDB::bind_method(D_METHOD("get_secondary_limit_angle"), &LookAtModifier3D::get_secondary_limit_angle);
|
|
ClassDB::bind_method(D_METHOD("set_secondary_damp_threshold", "power"), &LookAtModifier3D::set_secondary_damp_threshold);
|
|
ClassDB::bind_method(D_METHOD("get_secondary_damp_threshold"), &LookAtModifier3D::get_secondary_damp_threshold);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_secondary_positive_limit_angle", "angle"), &LookAtModifier3D::set_secondary_positive_limit_angle);
|
|
ClassDB::bind_method(D_METHOD("get_secondary_positive_limit_angle"), &LookAtModifier3D::get_secondary_positive_limit_angle);
|
|
ClassDB::bind_method(D_METHOD("set_secondary_positive_damp_threshold", "power"), &LookAtModifier3D::set_secondary_positive_damp_threshold);
|
|
ClassDB::bind_method(D_METHOD("get_secondary_positive_damp_threshold"), &LookAtModifier3D::get_secondary_positive_damp_threshold);
|
|
ClassDB::bind_method(D_METHOD("set_secondary_negative_limit_angle", "angle"), &LookAtModifier3D::set_secondary_negative_limit_angle);
|
|
ClassDB::bind_method(D_METHOD("get_secondary_negative_limit_angle"), &LookAtModifier3D::get_secondary_negative_limit_angle);
|
|
ClassDB::bind_method(D_METHOD("set_secondary_negative_damp_threshold", "power"), &LookAtModifier3D::set_secondary_negative_damp_threshold);
|
|
ClassDB::bind_method(D_METHOD("get_secondary_negative_damp_threshold"), &LookAtModifier3D::get_secondary_negative_damp_threshold);
|
|
|
|
ClassDB::bind_method(D_METHOD("get_interpolation_remaining"), &LookAtModifier3D::get_interpolation_remaining);
|
|
ClassDB::bind_method(D_METHOD("is_interpolating"), &LookAtModifier3D::is_interpolating);
|
|
ClassDB::bind_method(D_METHOD("is_target_within_limitation"), &LookAtModifier3D::is_target_within_limitation);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::NODE_PATH, "target_node", PROPERTY_HINT_NODE_TYPE, "Node3D"), "set_target_node", "get_target_node");
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::STRING, "bone_name", PROPERTY_HINT_ENUM_SUGGESTION, ""), "set_bone_name", "get_bone_name");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "bone", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR), "set_bone", "get_bone");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "forward_axis", PROPERTY_HINT_ENUM, "+X,-X,+Y,-Y,+Z,-Z"), "set_forward_axis", "get_forward_axis");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "primary_rotation_axis", PROPERTY_HINT_ENUM, "X,Y,Z"), "set_primary_rotation_axis", "get_primary_rotation_axis");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_secondary_rotation"), "set_use_secondary_rotation", "is_using_secondary_rotation");
|
|
|
|
ADD_GROUP("Origin Settings", "origin_");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "origin_from", PROPERTY_HINT_ENUM, "Self,SpecificBone,ExternalNode"), "set_origin_from", "get_origin_from");
|
|
ADD_PROPERTY(PropertyInfo(Variant::STRING, "origin_bone_name", PROPERTY_HINT_ENUM_SUGGESTION, ""), "set_origin_bone_name", "get_origin_bone_name");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "origin_bone", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR), "set_origin_bone", "get_origin_bone");
|
|
ADD_PROPERTY(PropertyInfo(Variant::NODE_PATH, "origin_external_node", PROPERTY_HINT_NODE_TYPE, "Node3D"), "set_origin_external_node", "get_origin_external_node");
|
|
ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "origin_offset"), "set_origin_offset", "get_origin_offset");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "origin_safe_margin", PROPERTY_HINT_RANGE, "0,100,0.001,or_greater,suffix:m"), "set_origin_safe_margin", "get_origin_safe_margin");
|
|
|
|
ADD_GROUP("Time Based Interpolation", "");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "duration", PROPERTY_HINT_RANGE, "0,10,0.001,or_greater,suffix:s"), "set_duration", "get_duration");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "transition_type", PROPERTY_HINT_ENUM, "Linear,Sine,Quint,Quart,Quad,Expo,Elastic,Cubic,Circ,Bounce,Back,Spring"), "set_transition_type", "get_transition_type");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "ease_type", PROPERTY_HINT_ENUM, "In,Out,InOut,OutIn"), "set_ease_type", "get_ease_type");
|
|
|
|
ADD_GROUP("Angle Limitation", "");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_angle_limitation"), "set_use_angle_limitation", "is_using_angle_limitation");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "symmetry_limitation"), "set_symmetry_limitation", "is_limitation_symmetry");
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "primary_limit_angle", PROPERTY_HINT_RANGE, "0,360,0.01,radians_as_degrees"), "set_primary_limit_angle", "get_primary_limit_angle");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "primary_damp_threshold", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_primary_damp_threshold", "get_primary_damp_threshold");
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "primary_positive_limit_angle", PROPERTY_HINT_RANGE, "0,180,0.01,radians_as_degrees"), "set_primary_positive_limit_angle", "get_primary_positive_limit_angle");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "primary_positive_damp_threshold", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_primary_positive_damp_threshold", "get_primary_positive_damp_threshold");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "primary_negative_limit_angle", PROPERTY_HINT_RANGE, "0,180,0.01,radians_as_degrees"), "set_primary_negative_limit_angle", "get_primary_negative_limit_angle");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "primary_negative_damp_threshold", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_primary_negative_damp_threshold", "get_primary_negative_damp_threshold");
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "secondary_limit_angle", PROPERTY_HINT_RANGE, "0,360,0.01,radians_as_degrees"), "set_secondary_limit_angle", "get_secondary_limit_angle");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "secondary_damp_threshold", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_secondary_damp_threshold", "get_secondary_damp_threshold");
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "secondary_positive_limit_angle", PROPERTY_HINT_RANGE, "0,180,0.01,radians_as_degrees"), "set_secondary_positive_limit_angle", "get_secondary_positive_limit_angle");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "secondary_positive_damp_threshold", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_secondary_positive_damp_threshold", "get_secondary_positive_damp_threshold");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "secondary_negative_limit_angle", PROPERTY_HINT_RANGE, "0,180,0.01,radians_as_degrees"), "set_secondary_negative_limit_angle", "get_secondary_negative_limit_angle");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "secondary_negative_damp_threshold", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_secondary_negative_damp_threshold", "get_secondary_negative_damp_threshold");
|
|
|
|
BIND_ENUM_CONSTANT(BONE_AXIS_PLUS_X);
|
|
BIND_ENUM_CONSTANT(BONE_AXIS_MINUS_X);
|
|
BIND_ENUM_CONSTANT(BONE_AXIS_PLUS_Y);
|
|
BIND_ENUM_CONSTANT(BONE_AXIS_MINUS_Y);
|
|
BIND_ENUM_CONSTANT(BONE_AXIS_PLUS_Z);
|
|
BIND_ENUM_CONSTANT(BONE_AXIS_MINUS_Z);
|
|
|
|
BIND_ENUM_CONSTANT(ORIGIN_FROM_SELF);
|
|
BIND_ENUM_CONSTANT(ORIGIN_FROM_SPECIFIC_BONE);
|
|
BIND_ENUM_CONSTANT(ORIGIN_FROM_EXTERNAL_NODE);
|
|
}
|
|
|
|
void LookAtModifier3D::_process_modification() {
|
|
if (!is_inside_tree()) {
|
|
return;
|
|
}
|
|
|
|
Skeleton3D *skeleton = get_skeleton();
|
|
if (!skeleton || bone < 0 || bone >= skeleton->get_bone_count()) {
|
|
return;
|
|
}
|
|
|
|
// Calculate bone rest space in the world.
|
|
Transform3D bone_rest_space;
|
|
int parent_bone = skeleton->get_bone_parent(bone);
|
|
if (parent_bone < 0) {
|
|
bone_rest_space = skeleton->get_global_transform() * skeleton->get_bone_rest(bone);
|
|
} else {
|
|
bone_rest_space = skeleton->get_global_transform() * skeleton->get_bone_global_pose(parent_bone) * skeleton->get_bone_rest(bone);
|
|
}
|
|
|
|
// Calculate forward_vector and destination.
|
|
is_within_limitations = true;
|
|
Vector3 prev_forward_vector = forward_vector;
|
|
Quaternion destination;
|
|
Node3D *target = Object::cast_to<Node3D>(get_node_or_null(target_node));
|
|
if (!target) {
|
|
destination = skeleton->get_bone_pose_rotation(bone);
|
|
} else {
|
|
Transform3D origin_tr;
|
|
if (origin_from == ORIGIN_FROM_SPECIFIC_BONE && origin_bone >= 0 && origin_bone < skeleton->get_bone_count()) {
|
|
origin_tr = skeleton->get_global_transform() * skeleton->get_bone_global_pose(origin_bone);
|
|
} else if (origin_from == ORIGIN_FROM_EXTERNAL_NODE) {
|
|
Node3D *origin_src = Object::cast_to<Node3D>(get_node_or_null(origin_external_node));
|
|
if (origin_src) {
|
|
origin_tr = origin_src->get_global_transform();
|
|
} else {
|
|
origin_tr = bone_rest_space;
|
|
}
|
|
} else {
|
|
origin_tr = bone_rest_space;
|
|
}
|
|
forward_vector = bone_rest_space.orthonormalized().basis.xform_inv((target->get_global_position() - origin_tr.translated_local(origin_offset).origin));
|
|
forward_vector_nrm = forward_vector.normalized();
|
|
if (forward_vector_nrm.abs().is_equal_approx(get_vector_from_axis(primary_rotation_axis))) {
|
|
destination = skeleton->get_bone_pose_rotation(bone);
|
|
forward_vector = Vector3(0, 0, 0); // The zero-vector to be used for checking in the line immediately below to avoid animation glitch.
|
|
} else {
|
|
destination = look_at_with_axes(skeleton->get_bone_rest(bone)).basis.get_rotation_quaternion();
|
|
}
|
|
}
|
|
|
|
// Detect flipping.
|
|
bool is_not_max_influence = influence < 1.0;
|
|
bool is_flippable = use_angle_limitation || is_not_max_influence;
|
|
Vector3::Axis current_forward_axis = get_axis_from_bone_axis(forward_axis);
|
|
if (is_intersecting_axis(prev_forward_vector, forward_vector, current_forward_axis, secondary_rotation_axis) ||
|
|
is_intersecting_axis(prev_forward_vector, forward_vector, primary_rotation_axis, primary_rotation_axis, true) ||
|
|
is_intersecting_axis(prev_forward_vector, forward_vector, secondary_rotation_axis, current_forward_axis) ||
|
|
(prev_forward_vector != Vector3(0, 0, 0) && forward_vector == Vector3(0, 0, 0)) ||
|
|
(prev_forward_vector == Vector3(0, 0, 0) && forward_vector != Vector3(0, 0, 0))) {
|
|
init_transition();
|
|
} else if (is_flippable && signbit(prev_forward_vector[secondary_rotation_axis]) != signbit(forward_vector[secondary_rotation_axis])) {
|
|
// Flipping by angle_limitation can be detected by sign of secondary rotation axes during forward_vector is rotated more than 90 degree from forward_axis (means dot production is negative).
|
|
Vector3 prev_forward_vector_nrm = forward_vector.normalized();
|
|
Vector3 rest_forward_vector = get_vector_from_bone_axis(forward_axis);
|
|
if (symmetry_limitation) {
|
|
if ((is_not_max_influence || !Math::is_equal_approx(primary_limit_angle, (float)Math_TAU)) &&
|
|
prev_forward_vector_nrm.dot(rest_forward_vector) < 0 &&
|
|
forward_vector_nrm.dot(rest_forward_vector) < 0) {
|
|
init_transition();
|
|
}
|
|
} else {
|
|
if ((is_not_max_influence || !Math::is_equal_approx(primary_positive_limit_angle + primary_negative_limit_angle, (float)Math_TAU)) &&
|
|
prev_forward_vector_nrm.dot(rest_forward_vector) < 0 &&
|
|
forward_vector_nrm.dot(rest_forward_vector) < 0) {
|
|
init_transition();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Do time-based interpolation.
|
|
if (remaining > 0) {
|
|
double delta = 0.0;
|
|
if (skeleton->get_modifier_callback_mode_process() == Skeleton3D::MODIFIER_CALLBACK_MODE_PROCESS_IDLE) {
|
|
delta = get_process_delta_time();
|
|
} else {
|
|
delta = get_physics_process_delta_time();
|
|
}
|
|
remaining = MAX(0, remaining - time_step * delta);
|
|
if (is_flippable) {
|
|
// Interpolate through the rest same as AnimationTree blending for preventing to penetrate the bone into the body.
|
|
Quaternion rest = skeleton->get_bone_rest(bone).basis.get_rotation_quaternion();
|
|
float weight = Tween::run_equation(transition_type, ease_type, 1 - remaining, 0.0, 1.0, 1.0);
|
|
destination = rest * Quaternion().slerp(rest.inverse() * from_q, 1 - weight) * Quaternion().slerp(rest.inverse() * destination, weight);
|
|
} else {
|
|
destination = from_q.slerp(destination, Tween::run_equation(transition_type, ease_type, 1 - remaining, 0.0, 1.0, 1.0));
|
|
}
|
|
}
|
|
|
|
skeleton->set_bone_pose_rotation(bone, destination);
|
|
prev_q = destination;
|
|
}
|
|
|
|
bool LookAtModifier3D::is_intersecting_axis(const Vector3 &p_prev, const Vector3 &p_current, Vector3::Axis p_flipping_axis, Vector3::Axis p_check_axis, bool p_check_plane) const {
|
|
// Prevent that the angular velocity does not become too large.
|
|
// Check that is p_flipping_axis flipped nearby p_check_axis (close than origin_safe_margin) or not. If p_check_plane is true, check two axes of crossed plane.
|
|
if (p_check_plane) {
|
|
if (get_projection_vector(p_prev, p_check_axis).length() > origin_safe_margin && get_projection_vector(p_current, p_check_axis).length() > origin_safe_margin) {
|
|
return false;
|
|
}
|
|
} else if (Math::abs(p_prev[p_check_axis]) > origin_safe_margin && Math::abs(p_current[p_check_axis]) > origin_safe_margin) {
|
|
return false;
|
|
}
|
|
|
|
return signbit(p_prev[p_flipping_axis]) != signbit(p_current[p_flipping_axis]);
|
|
}
|
|
|
|
Vector3 LookAtModifier3D::get_basis_vector_from_bone_axis(const Basis &p_basis, LookAtModifier3D::BoneAxis p_axis) const {
|
|
Vector3 ret;
|
|
switch (p_axis) {
|
|
case BONE_AXIS_PLUS_X: {
|
|
ret = p_basis.get_column(0);
|
|
} break;
|
|
case BONE_AXIS_MINUS_X: {
|
|
ret = -p_basis.get_column(0);
|
|
} break;
|
|
case BONE_AXIS_PLUS_Y: {
|
|
ret = p_basis.get_column(1);
|
|
} break;
|
|
case BONE_AXIS_MINUS_Y: {
|
|
ret = -p_basis.get_column(1);
|
|
} break;
|
|
case BONE_AXIS_PLUS_Z: {
|
|
ret = p_basis.get_column(2);
|
|
} break;
|
|
case BONE_AXIS_MINUS_Z: {
|
|
ret = -p_basis.get_column(2);
|
|
} break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
Vector3 LookAtModifier3D::get_vector_from_bone_axis(const LookAtModifier3D::BoneAxis &p_axis) const {
|
|
Vector3 ret;
|
|
switch (p_axis) {
|
|
case BONE_AXIS_PLUS_X: {
|
|
ret = Vector3(1, 0, 0);
|
|
} break;
|
|
case BONE_AXIS_MINUS_X: {
|
|
ret = Vector3(-1, 0, 0);
|
|
} break;
|
|
case BONE_AXIS_PLUS_Y: {
|
|
ret = Vector3(0, 1, 0);
|
|
} break;
|
|
case BONE_AXIS_MINUS_Y: {
|
|
ret = Vector3(0, -1, 0);
|
|
} break;
|
|
case BONE_AXIS_PLUS_Z: {
|
|
ret = Vector3(0, 0, 1);
|
|
} break;
|
|
case BONE_AXIS_MINUS_Z: {
|
|
ret = Vector3(0, 0, -1);
|
|
} break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
Vector3 LookAtModifier3D::get_vector_from_axis(const Vector3::Axis &p_axis) const {
|
|
Vector3 ret;
|
|
switch (p_axis) {
|
|
case Vector3::AXIS_X: {
|
|
ret = Vector3(1, 0, 0);
|
|
} break;
|
|
case Vector3::AXIS_Y: {
|
|
ret = Vector3(0, 1, 0);
|
|
} break;
|
|
case Vector3::AXIS_Z: {
|
|
ret = Vector3(0, 0, 1);
|
|
} break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
Vector3::Axis LookAtModifier3D::get_axis_from_bone_axis(BoneAxis p_axis) const {
|
|
Vector3::Axis ret = Vector3::AXIS_X;
|
|
switch (p_axis) {
|
|
case BONE_AXIS_PLUS_X:
|
|
case BONE_AXIS_MINUS_X: {
|
|
ret = Vector3::AXIS_X;
|
|
} break;
|
|
case BONE_AXIS_PLUS_Y:
|
|
case BONE_AXIS_MINUS_Y: {
|
|
ret = Vector3::AXIS_Y;
|
|
} break;
|
|
case BONE_AXIS_PLUS_Z:
|
|
case BONE_AXIS_MINUS_Z: {
|
|
ret = Vector3::AXIS_Z;
|
|
} break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
Vector2 LookAtModifier3D::get_projection_vector(const Vector3 &p_vector, Vector3::Axis p_axis) const {
|
|
// NOTE: axis is swapped between 2D and 3D.
|
|
Vector2 ret;
|
|
switch (p_axis) {
|
|
case Vector3::AXIS_X: {
|
|
ret = Vector2(p_vector.z, p_vector.y);
|
|
} break;
|
|
case Vector3::AXIS_Y: {
|
|
ret = Vector2(p_vector.x, p_vector.z);
|
|
} break;
|
|
case Vector3::AXIS_Z: {
|
|
ret = Vector2(p_vector.y, p_vector.x);
|
|
} break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
float LookAtModifier3D::remap_damped(float p_from, float p_to, float p_damp_threshold, float p_value) const {
|
|
float sign = signbit(p_value) ? -1.0f : 1.0f;
|
|
float abs_value = Math::abs(p_value);
|
|
|
|
if (Math::is_equal_approx(p_damp_threshold, 1.0f) || Math::is_zero_approx(p_to)) {
|
|
return sign * CLAMP(abs_value, p_from, p_to); // Avoid division by zero.
|
|
}
|
|
|
|
float value = Math::inverse_lerp(p_from, p_to, abs_value);
|
|
|
|
if (value <= p_damp_threshold) {
|
|
return sign * CLAMP(abs_value, p_from, p_to);
|
|
}
|
|
|
|
double limit = Math_PI;
|
|
double inv_to = 1.0 / p_to;
|
|
double end_x = limit * inv_to;
|
|
double position = abs_value * inv_to;
|
|
Vector2 start = Vector2(p_damp_threshold, p_damp_threshold);
|
|
Vector2 mid = Vector2(1.0, 1.0);
|
|
Vector2 end = Vector2(end_x, 1.0);
|
|
value = get_bspline_y(start, mid, end, position);
|
|
|
|
return sign * Math::lerp(p_from, p_to, value);
|
|
}
|
|
|
|
double LookAtModifier3D::get_bspline_y(const Vector2 &p_from, const Vector2 &p_control, const Vector2 &p_to, double p_x) const {
|
|
double a = p_from.x - 2.0 * p_control.x + p_to.x;
|
|
double b = -2.0 * p_from.x + 2.0 * p_control.x;
|
|
double c = p_from.x - p_x;
|
|
double t = 0.0;
|
|
if (Math::is_zero_approx(a)) {
|
|
t = -c / b; // Almost linear.
|
|
} else {
|
|
double discriminant = b * b - 4.0 * a * c;
|
|
double sqrt_discriminant = Math::sqrt(discriminant);
|
|
double e = 1.0 / (2.0 * a);
|
|
double t1 = (-b + sqrt_discriminant) * e;
|
|
t = (0.0 <= t1 && t1 <= 1.0) ? t1 : (-b - sqrt_discriminant) * e;
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}
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double u = 1.0 - t;
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double y = u * u * p_from.y + 2.0 * u * t * p_control.y + t * t * p_to.y;
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return y;
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}
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Transform3D LookAtModifier3D::look_at_with_axes(const Transform3D &p_rest) {
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// Primary rotation by projection to 2D plane by xform_inv and picking elements.
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Vector3 current_vector = get_basis_vector_from_bone_axis(p_rest.basis, forward_axis).normalized();
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Vector2 src_vec2 = get_projection_vector(p_rest.basis.xform_inv(forward_vector_nrm), primary_rotation_axis).normalized();
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Vector2 dst_vec2 = get_projection_vector(p_rest.basis.xform_inv(current_vector), primary_rotation_axis).normalized();
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real_t calculated_angle = src_vec2.angle_to(dst_vec2);
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Transform3D primary_result = p_rest.rotated_local(get_vector_from_axis(primary_rotation_axis), calculated_angle);
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Transform3D current_result = primary_result; // primary_result will be used by calculation of secondary rotation, current_result is rotated by that.
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float limit_angle = 0.0;
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float damp_threshold = 0.0;
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|
|
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if (use_angle_limitation) {
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if (symmetry_limitation) {
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limit_angle = primary_limit_angle * 0.5f;
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damp_threshold = primary_damp_threshold;
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} else {
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if (signbit(calculated_angle)) {
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limit_angle = primary_negative_limit_angle;
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damp_threshold = primary_negative_damp_threshold;
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} else {
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limit_angle = primary_positive_limit_angle;
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|
damp_threshold = primary_positive_damp_threshold;
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|
}
|
|
}
|
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if (Math::abs(calculated_angle) > limit_angle) {
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|
is_within_limitations = false;
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|
}
|
|
calculated_angle = remap_damped(0, limit_angle, damp_threshold, calculated_angle);
|
|
current_result = p_rest.rotated_local(get_vector_from_axis(primary_rotation_axis), calculated_angle);
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|
}
|
|
|
|
// Needs for detecting flipping even if use_secondary_rotation is false.
|
|
Vector3 secondary_plane = get_vector_from_bone_axis(forward_axis) + get_vector_from_axis(primary_rotation_axis);
|
|
secondary_rotation_axis = Math::is_zero_approx(secondary_plane.x) ? Vector3::AXIS_X : (Math::is_zero_approx(secondary_plane.y) ? Vector3::AXIS_Y : Vector3::AXIS_Z);
|
|
|
|
if (!use_secondary_rotation) {
|
|
return current_result;
|
|
}
|
|
|
|
// Secondary rotation by projection to 2D plane by xform_inv and picking elements.
|
|
current_vector = get_basis_vector_from_bone_axis(primary_result.basis, forward_axis).normalized();
|
|
src_vec2 = get_projection_vector(primary_result.basis.xform_inv(forward_vector_nrm), secondary_rotation_axis).normalized();
|
|
dst_vec2 = get_projection_vector(primary_result.basis.xform_inv(current_vector), secondary_rotation_axis).normalized();
|
|
calculated_angle = src_vec2.angle_to(dst_vec2);
|
|
|
|
if (use_angle_limitation) {
|
|
if (symmetry_limitation) {
|
|
limit_angle = secondary_limit_angle * 0.5f;
|
|
damp_threshold = secondary_damp_threshold;
|
|
} else {
|
|
if (signbit(calculated_angle)) {
|
|
limit_angle = secondary_negative_limit_angle;
|
|
damp_threshold = secondary_negative_damp_threshold;
|
|
} else {
|
|
limit_angle = secondary_positive_limit_angle;
|
|
damp_threshold = secondary_positive_damp_threshold;
|
|
}
|
|
}
|
|
if (Math::abs(calculated_angle) > limit_angle) {
|
|
is_within_limitations = false;
|
|
}
|
|
calculated_angle = remap_damped(0, limit_angle, damp_threshold, calculated_angle);
|
|
}
|
|
|
|
current_result = current_result.rotated_local(get_vector_from_axis(secondary_rotation_axis), calculated_angle);
|
|
|
|
return current_result;
|
|
}
|
|
|
|
void LookAtModifier3D::init_transition() {
|
|
if (Math::is_zero_approx(duration)) {
|
|
return;
|
|
}
|
|
from_q = prev_q;
|
|
remaining = 1.0;
|
|
}
|