godot/editor/plugins/gizmos/physics_bone_3d_gizmo_plugin.cpp

/**************************************************************************/
/*  physics_bone_3d_gizmo_plugin.cpp                                      */
/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#include "physics_bone_3d_gizmo_plugin.h"

#include "editor/editor_settings.h"
#include "editor/plugins/gizmos/joint_3d_gizmo_plugin.h"
#include "editor/plugins/node_3d_editor_plugin.h"
#include "scene/3d/physics_body_3d.h"

PhysicalBone3DGizmoPlugin::PhysicalBone3DGizmoPlugin() {
	create_material("joint_material", EDITOR_GET("editors/3d_gizmos/gizmo_colors/joint"));
}

bool PhysicalBone3DGizmoPlugin::has_gizmo(Node3D *p_spatial) {
	return Object::cast_to<PhysicalBone3D>(p_spatial) != nullptr;
}

String PhysicalBone3DGizmoPlugin::get_gizmo_name() const {
	return "PhysicalBone3D";
}

int PhysicalBone3DGizmoPlugin::get_priority() const {
	return -1;
}

void PhysicalBone3DGizmoPlugin::redraw(EditorNode3DGizmo *p_gizmo) {
	p_gizmo->clear();

	PhysicalBone3D *physical_bone = Object::cast_to<PhysicalBone3D>(p_gizmo->get_node_3d());

	if (!physical_bone) {
		return;
	}

	Skeleton3D *sk(physical_bone->find_skeleton_parent());
	if (!sk) {
		return;
	}

	PhysicalBone3D *pb(sk->get_physical_bone(physical_bone->get_bone_id()));
	if (!pb) {
		return;
	}

	PhysicalBone3D *pbp(sk->get_physical_bone_parent(physical_bone->get_bone_id()));
	if (!pbp) {
		return;
	}

	Vector<Vector3> points;

	switch (physical_bone->get_joint_type()) {
		case PhysicalBone3D::JOINT_TYPE_PIN: {
			Joint3DGizmoPlugin::CreatePinJointGizmo(physical_bone->get_joint_offset(), points);
		} break;
		case PhysicalBone3D::JOINT_TYPE_CONE: {
			const PhysicalBone3D::ConeJointData *cjd(static_cast<const PhysicalBone3D::ConeJointData *>(physical_bone->get_joint_data()));
			Joint3DGizmoPlugin::CreateConeTwistJointGizmo(
					physical_bone->get_joint_offset(),
					physical_bone->get_global_transform() * physical_bone->get_joint_offset(),
					pb->get_global_transform(),
					pbp->get_global_transform(),
					cjd->swing_span,
					cjd->twist_span,
					&points,
					&points);
		} break;
		case PhysicalBone3D::JOINT_TYPE_HINGE: {
			const PhysicalBone3D::HingeJointData *hjd(static_cast<const PhysicalBone3D::HingeJointData *>(physical_bone->get_joint_data()));
			Joint3DGizmoPlugin::CreateHingeJointGizmo(
					physical_bone->get_joint_offset(),
					physical_bone->get_global_transform() * physical_bone->get_joint_offset(),
					pb->get_global_transform(),
					pbp->get_global_transform(),
					hjd->angular_limit_lower,
					hjd->angular_limit_upper,
					hjd->angular_limit_enabled,
					points,
					&points,
					&points);
		} break;
		case PhysicalBone3D::JOINT_TYPE_SLIDER: {
			const PhysicalBone3D::SliderJointData *sjd(static_cast<const PhysicalBone3D::SliderJointData *>(physical_bone->get_joint_data()));
			Joint3DGizmoPlugin::CreateSliderJointGizmo(
					physical_bone->get_joint_offset(),
					physical_bone->get_global_transform() * physical_bone->get_joint_offset(),
					pb->get_global_transform(),
					pbp->get_global_transform(),
					sjd->angular_limit_lower,
					sjd->angular_limit_upper,
					sjd->linear_limit_lower,
					sjd->linear_limit_upper,
					points,
					&points,
					&points);
		} break;
		case PhysicalBone3D::JOINT_TYPE_6DOF: {
			const PhysicalBone3D::SixDOFJointData *sdofjd(static_cast<const PhysicalBone3D::SixDOFJointData *>(physical_bone->get_joint_data()));
			Joint3DGizmoPlugin::CreateGeneric6DOFJointGizmo(
					physical_bone->get_joint_offset(),

					physical_bone->get_global_transform() * physical_bone->get_joint_offset(),
					pb->get_global_transform(),
					pbp->get_global_transform(),

					sdofjd->axis_data[0].angular_limit_lower,
					sdofjd->axis_data[0].angular_limit_upper,
					sdofjd->axis_data[0].linear_limit_lower,
					sdofjd->axis_data[0].linear_limit_upper,
					sdofjd->axis_data[0].angular_limit_enabled,
					sdofjd->axis_data[0].linear_limit_enabled,

					sdofjd->axis_data[1].angular_limit_lower,
					sdofjd->axis_data[1].angular_limit_upper,
					sdofjd->axis_data[1].linear_limit_lower,
					sdofjd->axis_data[1].linear_limit_upper,
					sdofjd->axis_data[1].angular_limit_enabled,
					sdofjd->axis_data[1].linear_limit_enabled,

					sdofjd->axis_data[2].angular_limit_lower,
					sdofjd->axis_data[2].angular_limit_upper,
					sdofjd->axis_data[2].linear_limit_lower,
					sdofjd->axis_data[2].linear_limit_upper,
					sdofjd->axis_data[2].angular_limit_enabled,
					sdofjd->axis_data[2].linear_limit_enabled,

					points,
					&points,
					&points);
		} break;
		default:
			return;
	}

	Ref<Material> material = get_material("joint_material", p_gizmo);

	p_gizmo->add_collision_segments(points);
	p_gizmo->add_lines(points, material);
}