197 lines
8.8 KiB
C++
197 lines
8.8 KiB
C++
/**************************************************************************/
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/* navigation_mesh_source_geometry_data_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 "navigation_mesh_source_geometry_data_3d.h"
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void NavigationMeshSourceGeometryData3D::set_vertices(const Vector<float> &p_vertices) {
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vertices = p_vertices;
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}
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void NavigationMeshSourceGeometryData3D::set_indices(const Vector<int> &p_indices) {
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indices = p_indices;
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}
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void NavigationMeshSourceGeometryData3D::clear() {
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vertices.clear();
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indices.clear();
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}
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void NavigationMeshSourceGeometryData3D::_add_vertex(const Vector3 &p_vec3) {
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vertices.push_back(p_vec3.x);
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vertices.push_back(p_vec3.y);
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vertices.push_back(p_vec3.z);
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}
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void NavigationMeshSourceGeometryData3D::_add_mesh(const Ref<Mesh> &p_mesh, const Transform3D &p_xform) {
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int current_vertex_count;
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for (int i = 0; i < p_mesh->get_surface_count(); i++) {
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current_vertex_count = vertices.size() / 3;
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if (p_mesh->surface_get_primitive_type(i) != Mesh::PRIMITIVE_TRIANGLES) {
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continue;
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}
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int index_count = 0;
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if (p_mesh->surface_get_format(i) & Mesh::ARRAY_FORMAT_INDEX) {
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index_count = p_mesh->surface_get_array_index_len(i);
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} else {
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index_count = p_mesh->surface_get_array_len(i);
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}
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ERR_CONTINUE((index_count == 0 || (index_count % 3) != 0));
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int face_count = index_count / 3;
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Array a = p_mesh->surface_get_arrays(i);
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ERR_CONTINUE(a.is_empty() || (a.size() != Mesh::ARRAY_MAX));
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Vector<Vector3> mesh_vertices = a[Mesh::ARRAY_VERTEX];
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ERR_CONTINUE(mesh_vertices.is_empty());
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const Vector3 *vr = mesh_vertices.ptr();
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if (p_mesh->surface_get_format(i) & Mesh::ARRAY_FORMAT_INDEX) {
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Vector<int> mesh_indices = a[Mesh::ARRAY_INDEX];
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ERR_CONTINUE(mesh_indices.is_empty() || (mesh_indices.size() != index_count));
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const int *ir = mesh_indices.ptr();
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for (int j = 0; j < mesh_vertices.size(); j++) {
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_add_vertex(p_xform.xform(vr[j]));
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}
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for (int j = 0; j < face_count; j++) {
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// CCW
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indices.push_back(current_vertex_count + (ir[j * 3 + 0]));
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indices.push_back(current_vertex_count + (ir[j * 3 + 2]));
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indices.push_back(current_vertex_count + (ir[j * 3 + 1]));
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}
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} else {
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ERR_CONTINUE(mesh_vertices.size() != index_count);
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face_count = mesh_vertices.size() / 3;
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for (int j = 0; j < face_count; j++) {
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_add_vertex(p_xform.xform(vr[j * 3 + 0]));
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_add_vertex(p_xform.xform(vr[j * 3 + 2]));
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_add_vertex(p_xform.xform(vr[j * 3 + 1]));
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indices.push_back(current_vertex_count + (j * 3 + 0));
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indices.push_back(current_vertex_count + (j * 3 + 1));
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indices.push_back(current_vertex_count + (j * 3 + 2));
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}
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}
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}
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}
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void NavigationMeshSourceGeometryData3D::_add_mesh_array(const Array &p_mesh_array, const Transform3D &p_xform) {
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ERR_FAIL_COND(p_mesh_array.size() != Mesh::ARRAY_MAX);
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Vector<Vector3> mesh_vertices = p_mesh_array[Mesh::ARRAY_VERTEX];
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ERR_FAIL_COND(mesh_vertices.is_empty());
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const Vector3 *vr = mesh_vertices.ptr();
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Vector<int> mesh_indices = p_mesh_array[Mesh::ARRAY_INDEX];
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ERR_FAIL_COND(mesh_indices.is_empty());
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const int *ir = mesh_indices.ptr();
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const int face_count = mesh_indices.size() / 3;
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const int current_vertex_count = vertices.size() / 3;
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for (int j = 0; j < mesh_vertices.size(); j++) {
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_add_vertex(p_xform.xform(vr[j]));
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}
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for (int j = 0; j < face_count; j++) {
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// CCW
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indices.push_back(current_vertex_count + (ir[j * 3 + 0]));
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indices.push_back(current_vertex_count + (ir[j * 3 + 2]));
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indices.push_back(current_vertex_count + (ir[j * 3 + 1]));
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}
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}
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void NavigationMeshSourceGeometryData3D::_add_faces(const PackedVector3Array &p_faces, const Transform3D &p_xform) {
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ERR_FAIL_COND(p_faces.is_empty());
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ERR_FAIL_COND(p_faces.size() % 3 != 0);
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int face_count = p_faces.size() / 3;
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int current_vertex_count = vertices.size() / 3;
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for (int j = 0; j < face_count; j++) {
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_add_vertex(p_xform.xform(p_faces[j * 3 + 0]));
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_add_vertex(p_xform.xform(p_faces[j * 3 + 1]));
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_add_vertex(p_xform.xform(p_faces[j * 3 + 2]));
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indices.push_back(current_vertex_count + (j * 3 + 0));
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indices.push_back(current_vertex_count + (j * 3 + 2));
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indices.push_back(current_vertex_count + (j * 3 + 1));
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}
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}
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void NavigationMeshSourceGeometryData3D::add_mesh(const Ref<Mesh> &p_mesh, const Transform3D &p_xform) {
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ERR_FAIL_COND(!p_mesh.is_valid());
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_add_mesh(p_mesh, root_node_transform * p_xform);
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}
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void NavigationMeshSourceGeometryData3D::add_mesh_array(const Array &p_mesh_array, const Transform3D &p_xform) {
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ERR_FAIL_COND(p_mesh_array.size() != Mesh::ARRAY_MAX);
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_add_mesh_array(p_mesh_array, root_node_transform * p_xform);
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}
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void NavigationMeshSourceGeometryData3D::add_faces(const PackedVector3Array &p_faces, const Transform3D &p_xform) {
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ERR_FAIL_COND(p_faces.size() % 3 != 0);
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_add_faces(p_faces, root_node_transform * p_xform);
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}
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void NavigationMeshSourceGeometryData3D::merge(const Ref<NavigationMeshSourceGeometryData3D> &p_other_geometry) {
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// No need to worry about `root_node_transform` here as the vertices are already xformed.
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const int64_t number_of_vertices_before_merge = vertices.size();
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const int64_t number_of_indices_before_merge = indices.size();
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vertices.append_array(p_other_geometry->vertices);
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indices.append_array(p_other_geometry->indices);
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for (int64_t i = number_of_indices_before_merge; i < indices.size(); i++) {
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indices.set(i, indices[i] + number_of_vertices_before_merge / 3);
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}
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}
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void NavigationMeshSourceGeometryData3D::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_vertices", "vertices"), &NavigationMeshSourceGeometryData3D::set_vertices);
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ClassDB::bind_method(D_METHOD("get_vertices"), &NavigationMeshSourceGeometryData3D::get_vertices);
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ClassDB::bind_method(D_METHOD("set_indices", "indices"), &NavigationMeshSourceGeometryData3D::set_indices);
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ClassDB::bind_method(D_METHOD("get_indices"), &NavigationMeshSourceGeometryData3D::get_indices);
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ClassDB::bind_method(D_METHOD("clear"), &NavigationMeshSourceGeometryData3D::clear);
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ClassDB::bind_method(D_METHOD("has_data"), &NavigationMeshSourceGeometryData3D::has_data);
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ClassDB::bind_method(D_METHOD("add_mesh", "mesh", "xform"), &NavigationMeshSourceGeometryData3D::add_mesh);
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ClassDB::bind_method(D_METHOD("add_mesh_array", "mesh_array", "xform"), &NavigationMeshSourceGeometryData3D::add_mesh_array);
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ClassDB::bind_method(D_METHOD("add_faces", "faces", "xform"), &NavigationMeshSourceGeometryData3D::add_faces);
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ClassDB::bind_method(D_METHOD("merge", "other_geometry"), &NavigationMeshSourceGeometryData3D::merge);
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ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR3_ARRAY, "vertices", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "set_vertices", "get_vertices");
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ADD_PROPERTY(PropertyInfo(Variant::PACKED_INT32_ARRAY, "indices", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "set_indices", "get_indices");
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}
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