641 lines
21 KiB
C++
641 lines
21 KiB
C++
//
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// Created by martin on 17.03.24.
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//
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#include "AnimGraphResource.h"
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#include <cstring>
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#include <fstream>
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#include "3rdparty/json/json.hpp"
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#include "AnimGraphBlendTree.h"
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#include "AnimGraphNodes.h"
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using json = nlohmann::json;
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//
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// Socket <-> json
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//
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std::string sSocketTypeToStr(SocketType pin_type) {
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if (pin_type < SocketType::SocketTypeUndefined
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|| pin_type >= SocketType::SocketTypeLast) {
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return "Unknown";
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}
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return SocketTypeNames[static_cast<int>(pin_type)];
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}
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json sSocketToJson(const Socket& socket) {
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json result;
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result["name"] = socket.m_name;
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result["type"] = sSocketTypeToStr(socket.m_type);
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if (socket.m_type == SocketType::SocketTypeString
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&& !socket.m_value_string.empty()) {
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result["value"] = socket.m_value_string;
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} else if (socket.m_value.flag) {
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if (socket.m_type == SocketType::SocketTypeBool) {
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result["value"] = socket.m_value.flag;
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} else if (socket.m_type == SocketType::SocketTypeAnimation) {
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} else if (socket.m_type == SocketType::SocketTypeInt) {
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result["value"] = socket.m_value.int_value;
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} else if (socket.m_type == SocketType::SocketTypeFloat) {
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result["value"] = socket.m_value.float_value;
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} else if (socket.m_type == SocketType::SocketTypeVec3) {
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result["value"][0] = socket.m_value.vec3.v[0];
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result["value"][1] = socket.m_value.vec3.v[1];
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result["value"][2] = socket.m_value.vec3.v[2];
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} else if (socket.m_type == SocketType::SocketTypeQuat) {
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result["value"][0] = socket.m_value.quat.v[0];
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result["value"][1] = socket.m_value.quat.v[1];
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result["value"][2] = socket.m_value.quat.v[2];
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result["value"][3] = socket.m_value.quat.v[3];
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} else {
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std::cerr << "Invalid socket type '" << static_cast<int>(socket.m_type)
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<< "'." << std::endl;
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}
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}
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return result;
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}
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Socket sJsonToSocket(const json& json_data) {
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Socket result;
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result.m_type = SocketType::SocketTypeUndefined;
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result.m_reference.ptr = &result.m_value.int_value;
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result.m_name = json_data["name"];
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std::string type_string = json_data["type"];
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bool have_value = json_data.contains("value");
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if (type_string == "Bool") {
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result.m_type = SocketType::SocketTypeBool;
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result.m_type_size = sizeof(bool);
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result.m_reference.ptr = &result.m_value.int_value;
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if (have_value) {
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result.m_value.flag = json_data["value"];
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}
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} else if (type_string == "Animation") {
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result.m_type = SocketType::SocketTypeAnimation;
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result.m_type_size = sizeof(AnimData);
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} else if (type_string == "Int") {
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result.m_type = SocketType::SocketTypeInt;
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result.m_type_size = sizeof(int);
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if (have_value) {
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result.m_value.int_value = json_data["value"];
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}
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} else if (type_string == "Float") {
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result.m_type = SocketType::SocketTypeFloat;
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result.m_type_size = sizeof(float);
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if (have_value) {
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result.m_value.float_value = json_data["value"];
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}
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} else if (type_string == "Vec3") {
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result.m_type = SocketType::SocketTypeVec3;
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result.m_type_size = sizeof(Vec3);
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if (have_value) {
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result.m_value.vec3.x = json_data["value"][0];
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result.m_value.vec3.y = json_data["value"][1];
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result.m_value.vec3.z = json_data["value"][2];
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}
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} else if (type_string == "Quat") {
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result.m_type = SocketType::SocketTypeQuat;
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result.m_type_size = sizeof(Quat);
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if (have_value) {
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result.m_value.quat.x = json_data["value"][0];
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result.m_value.quat.y = json_data["value"][1];
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result.m_value.quat.z = json_data["value"][2];
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result.m_value.quat.w = json_data["value"][3];
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}
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} else if (type_string == "String") {
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result.m_type = SocketType::SocketTypeString;
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result.m_type_size = sizeof(std::string);
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if (have_value) {
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result.m_value_string = json_data["value"];
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}
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} else {
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std::cerr << "Invalid socket type '" << type_string << "'." << std::endl;
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}
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return result;
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}
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//
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// AnimGraphNode <-> json
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//
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json sAnimGraphNodeToJson(
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const AnimNodeResource& node,
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size_t node_index,
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const std::vector<BlendTreeConnectionResource>& connections) {
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json result;
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result["name"] = node.m_name;
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result["type"] = "AnimNodeResource";
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result["node_type"] = node.m_type_name;
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for (size_t j = 0; j < 2; j++) {
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result["position"][j] = node.m_position[j];
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}
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for (const auto& socket : node.m_socket_accessor->m_inputs) {
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if (socket.m_type == SocketType::SocketTypeAnimation) {
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continue;
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}
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bool socket_connected = false;
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for (const auto& connection : connections) {
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if (connection.source_node_index == node_index
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&& connection.source_socket_name == socket.m_name) {
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socket_connected = true;
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break;
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}
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}
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if (!socket_connected) {
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result["inputs"].push_back(sSocketToJson(socket));
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}
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}
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for (auto& property : node.m_socket_accessor->m_properties) {
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result["properties"][property.m_name] = sSocketToJson(property);
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}
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return result;
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}
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AnimNodeResource sAnimGraphNodeFromJson(
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const json& json_node,
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size_t node_index) {
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AnimNodeResource result;
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result.m_name = json_node["name"];
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result.m_type_name = json_node["node_type"];
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result.m_position[0] = json_node["position"][0];
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result.m_position[1] = json_node["position"][1];
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result.m_anim_node = AnimNodeFactory(result.m_type_name);
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result.m_socket_accessor =
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AnimNodeDescriptorFactory(result.m_type_name, result.m_anim_node);
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for (auto& property : result.m_socket_accessor->m_properties) {
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property = sJsonToSocket(json_node["properties"][property.m_name]);
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}
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if (node_index != 0 && node_index != 1 && json_node.contains("inputs")) {
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for (size_t j = 0, n = json_node["inputs"].size(); j < n; j++) {
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assert(json_node["inputs"][j].contains("name"));
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std::string input_name = json_node["inputs"][j]["name"];
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Socket* input_socket =
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result.m_socket_accessor->GetInputSocket(input_name.c_str());
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if (input_socket == nullptr) {
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std::cerr << "Could not find input socket with name " << input_name
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<< " for node type " << result.m_type_name << std::endl;
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abort();
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}
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*input_socket = sJsonToSocket(json_node["inputs"][j]);
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}
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}
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return result;
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}
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//
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// AnimGraphConnectionResource <-> Json
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//
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json sAnimGraphConnectionToJson(const BlendTreeConnectionResource& connection) {
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json result;
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result["type"] = "AnimGraphConnectionResource";
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result["source_node_index"] = connection.source_node_index;
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result["source_socket_name"] = connection.source_socket_name;
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result["target_node_index"] = connection.target_node_index;
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result["target_socket_name"] = connection.target_socket_name;
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return result;
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}
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BlendTreeConnectionResource sAnimGraphConnectionFromJson(
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const json& json_node) {
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BlendTreeConnectionResource connection;
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connection.source_node_index = json_node["source_node_index"];
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connection.source_socket_name = json_node["source_socket_name"];
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connection.target_node_index = json_node["target_node_index"];
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connection.target_socket_name = json_node["target_socket_name"];
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return connection;
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}
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bool AnimGraphResource::LoadFromFile(const char* filename) {
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std::ifstream input_file;
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input_file.open(filename);
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std::stringstream buffer;
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buffer << input_file.rdbuf();
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json json_data = json::parse(buffer.str(), nullptr, false);
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if (json_data.is_discarded()) {
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std::cerr << "Error parsing json of file '" << filename << "'."
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<< std::endl;
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return false;
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}
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if (json_data["type"] != "AnimNodeResource") {
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std::cerr
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<< "Invalid json object. Expected type 'AnimNodeResource' but got '"
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<< json_data["type"] << "'." << std::endl;
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return false;
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}
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if (json_data["node_type"] == "BlendTree") {
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return LoadBlendTreeResourceFromJson(json_data);
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} else if (json_data["node_type"] == "StateMachine") {
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return LoadStateMachineResourceFromJson(json_data);
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}
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std::cerr << "Invalid node_type. Expected type 'BlendTree' or "
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"'StateMachine' but got '"
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<< json_data["node_type"] << "'." << std::endl;
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return false;
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}
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bool AnimGraphResource::LoadBlendTreeResourceFromJson(nlohmann::json const& json_data) {
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m_blend_tree_resource.Reset();
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m_type = "BlendTree";
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m_name = json_data["name"];
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// Load nodes
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for (size_t i = 0, n = json_data["nodes"].size(); i < n; i++) {
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const json& json_node = json_data["nodes"][i];
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if (json_node["type"] != "AnimNodeResource") {
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std::cerr
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<< "Invalid json object. Expected type 'AnimNodeResource' but got '"
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<< json_node["type"] << "'." << std::endl;
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return false;
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}
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AnimNodeResource node = sAnimGraphNodeFromJson(json_node, i);
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m_blend_tree_resource.m_nodes.push_back(node);
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}
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// Setup graph inputs and outputs
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const json& graph_outputs = json_data["nodes"][0]["inputs"];
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for (const auto& graph_output : graph_outputs) {
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AnimNodeResource& graph_node = m_blend_tree_resource.m_nodes[0];
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graph_node.m_socket_accessor->m_inputs.push_back(
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sJsonToSocket(graph_output));
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}
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const json& graph_inputs = json_data["nodes"][1]["outputs"];
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for (const auto& graph_input : graph_inputs) {
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AnimNodeResource& graph_node = m_blend_tree_resource.m_nodes[1];
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graph_node.m_socket_accessor->m_outputs.push_back(
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sJsonToSocket(graph_input));
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}
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// Load connections
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for (const auto& json_connection : json_data["connections"]) {
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if (json_connection["type"] != "AnimGraphConnectionResource") {
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std::cerr << "Invalid json object. Expected type "
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"'AnimGraphConnectionResource' "
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"but got '"
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<< json_connection["type"] << "'." << std::endl;
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return false;
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}
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BlendTreeConnectionResource connection =
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sAnimGraphConnectionFromJson(json_connection);
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m_blend_tree_resource.m_connections.push_back(connection);
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}
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return true;
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}
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bool AnimGraphResource::SaveToFile(const char* filename) const {
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if (m_type == "BlendTree") {
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return SaveBlendTreeResourceToFile(filename);
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} else if (m_type == "StateMachine") {
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return SaveStateMachineResourceToFile(filename);
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}
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std::cerr << "Invalid AnimGraphResource type: " << m_type << "." << std::endl;
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return false;
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}
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bool AnimGraphResource::SaveBlendTreeResourceToFile(
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const char* filename) const {
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json result;
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result["name"] = m_name;
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result["type"] = "AnimNodeResource";
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result["node_type"] = "BlendTree";
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for (size_t i = 0; i < m_blend_tree_resource.m_nodes.size(); i++) {
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const AnimNodeResource& node = m_blend_tree_resource.m_nodes[i];
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result["nodes"][i] =
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sAnimGraphNodeToJson(node, i, m_blend_tree_resource.m_connections);
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}
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for (size_t i = 0; i < m_blend_tree_resource.m_connections.size(); i++) {
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const BlendTreeConnectionResource& connection =
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m_blend_tree_resource.m_connections[i];
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result["connections"][i] = sAnimGraphConnectionToJson(connection);
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}
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// Graph inputs and outputs
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{
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const AnimNodeResource& graph_output_node =
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m_blend_tree_resource.m_nodes[0];
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const std::vector<Socket> graph_inputs =
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graph_output_node.m_socket_accessor->m_inputs;
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for (size_t i = 0; i < graph_inputs.size(); i++) {
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result["nodes"][0]["inputs"][i] = sSocketToJson(graph_inputs[i]);
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}
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const AnimNodeResource& graph_input_node = m_blend_tree_resource.m_nodes[1];
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const std::vector<Socket> graph_outputs =
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graph_input_node.m_socket_accessor->m_outputs;
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for (size_t i = 0; i < graph_outputs.size(); i++) {
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result["nodes"][1]["outputs"][i] = sSocketToJson(graph_outputs[i]);
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}
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}
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std::ofstream output_file;
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output_file.open(filename);
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output_file << result.dump(4, ' ') << std::endl;
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output_file.close();
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return true;
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}
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void AnimGraphResource::CreateBlendTreeInstance(
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AnimGraphBlendTree& result) const {
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if (m_type != "BlendTree") {
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std::cerr << "Invalid AnimGraphResource. Expected type 'BlendTree' but got '"
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<< m_type << "'." << std::endl;
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return;
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}
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CreateBlendTreeRuntimeNodeInstances(result);
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PrepareBlendTreeIOData(result);
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SetRuntimeNodeProperties(result);
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result.UpdateOrderedNodes();
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result.ResetNodeStates();
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}
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void AnimGraphResource::CreateBlendTreeRuntimeNodeInstances(
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AnimGraphBlendTree& result) const {
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for (int i = 0; i < m_blend_tree_resource.m_nodes.size(); i++) {
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const AnimNodeResource& node_resource = m_blend_tree_resource.m_nodes[i];
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AnimNode* node = AnimNodeFactory(node_resource.m_type_name);
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node->m_name = node_resource.m_name;
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node->m_node_type_name = node_resource.m_type_name;
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result.m_nodes.push_back(node);
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// runtime node connections
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result.m_node_input_connections.emplace_back();
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result.m_node_output_connections.emplace_back();
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}
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}
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void AnimGraphResource::PrepareBlendTreeIOData(
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AnimGraphBlendTree& instance) const {
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instance.m_node_descriptor =
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AnimNodeDescriptorFactory("BlendTree", instance.m_nodes[0]);
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instance.m_node_descriptor->m_outputs =
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m_blend_tree_resource.m_nodes[1].m_socket_accessor->m_outputs;
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instance.m_node_descriptor->m_inputs =
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m_blend_tree_resource.m_nodes[0].m_socket_accessor->m_inputs;
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//
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// graph inputs
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//
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int input_block_size = 0;
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std::vector<Socket>& graph_inputs = instance.getGraphInputs();
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for (int i = 0; i < graph_inputs.size(); i++) {
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input_block_size += sizeof(void*);
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}
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if (input_block_size > 0) {
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instance.m_input_buffer = new char[input_block_size];
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memset(instance.m_input_buffer, 0, input_block_size);
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}
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int input_block_offset = 0;
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for (int i = 0; i < graph_inputs.size(); i++) {
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graph_inputs[i].m_reference.ptr =
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(void*)&instance.m_input_buffer[input_block_offset];
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instance.m_node_descriptor->m_outputs[i].m_reference.ptr =
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&instance.m_input_buffer[input_block_offset];
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input_block_offset += sizeof(void*);
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}
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//
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// graph outputs
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//
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int output_block_size = 0;
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std::vector<Socket>& graph_outputs = instance.getGraphOutputs();
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for (int i = 0; i < graph_outputs.size(); i++) {
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output_block_size += sizeof(void*);
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}
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if (output_block_size > 0) {
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instance.m_output_buffer = new char[output_block_size];
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memset(instance.m_output_buffer, 0, output_block_size);
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}
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int output_block_offset = 0;
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for (int i = 0; i < graph_outputs.size(); i++) {
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instance.m_node_descriptor->m_inputs[i].m_reference.ptr =
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&instance.m_output_buffer[output_block_offset];
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output_block_offset += sizeof(void*);
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}
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// connections: make source and target sockets point to the same address in the connection data storage.
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// TODO: instead of every connection, only create data blocks for the source sockets and make sure every source socket gets allocated once.
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size_t connection_data_storage_size = 0;
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for (const auto& connection : m_blend_tree_resource.m_connections) {
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const AnimNodeResource& source_node =
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m_blend_tree_resource.m_nodes[connection.source_node_index];
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Socket* source_socket = source_node.m_socket_accessor->GetOutputSocket(
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connection.source_socket_name.c_str());
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connection_data_storage_size += source_socket->m_type_size;
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}
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if (connection_data_storage_size > 0) {
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instance.m_connection_data_storage = new char[connection_data_storage_size];
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memset(instance.m_connection_data_storage, 0, connection_data_storage_size);
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}
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std::vector<NodeDescriptorBase*> instance_node_descriptors(
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m_blend_tree_resource.m_nodes.size(),
|
|
nullptr);
|
|
for (int i = 0; i < m_blend_tree_resource.m_nodes.size(); i++) {
|
|
instance_node_descriptors[i] = AnimNodeDescriptorFactory(
|
|
m_blend_tree_resource.m_nodes[i].m_type_name,
|
|
instance.m_nodes[i]);
|
|
}
|
|
|
|
instance_node_descriptors[0]->m_inputs = instance.m_node_descriptor->m_inputs;
|
|
instance_node_descriptors[1]->m_outputs =
|
|
instance.m_node_descriptor->m_outputs;
|
|
|
|
size_t connection_data_offset = 0;
|
|
for (const auto& connection : m_blend_tree_resource.m_connections) {
|
|
NodeDescriptorBase* source_node_descriptor =
|
|
instance_node_descriptors[connection.source_node_index];
|
|
NodeDescriptorBase* target_node_descriptor =
|
|
instance_node_descriptors[connection.target_node_index];
|
|
|
|
AnimNode* source_node = instance.m_nodes[connection.source_node_index];
|
|
AnimNode* target_node = instance.m_nodes[connection.target_node_index];
|
|
|
|
Socket* source_socket = source_node_descriptor->GetOutputSocket(
|
|
connection.source_socket_name.c_str());
|
|
Socket* target_socket = target_node_descriptor->GetInputSocket(
|
|
connection.target_socket_name.c_str());
|
|
|
|
AnimGraphConnection instance_connection;
|
|
instance_connection.m_source_node = source_node;
|
|
instance_connection.m_source_socket = *source_socket;
|
|
instance_connection.m_target_node = target_node;
|
|
instance_connection.m_target_socket = *target_socket;
|
|
instance.m_node_input_connections[connection.target_node_index].push_back(
|
|
instance_connection);
|
|
instance.m_node_output_connections[connection.source_node_index].push_back(
|
|
instance_connection);
|
|
|
|
source_node_descriptor->SetOutputUnchecked(
|
|
connection.source_socket_name.c_str(),
|
|
&instance.m_connection_data_storage[connection_data_offset]);
|
|
|
|
target_node_descriptor->SetInputUnchecked(
|
|
connection.target_socket_name.c_str(),
|
|
&instance.m_connection_data_storage[connection_data_offset]);
|
|
|
|
if (source_socket->m_type == SocketType::SocketTypeAnimation) {
|
|
instance.m_animdata_blocks.push_back(
|
|
(AnimData*)(&instance
|
|
.m_connection_data_storage[connection_data_offset]));
|
|
}
|
|
|
|
connection_data_offset += source_socket->m_type_size;
|
|
}
|
|
|
|
//
|
|
// const node inputs
|
|
//
|
|
std::vector<Socket*> const_inputs =
|
|
m_blend_tree_resource.GetConstantNodeInputs(instance_node_descriptors);
|
|
size_t const_node_inputs_buffer_size = 0;
|
|
for (auto& const_input : const_inputs) {
|
|
if (const_input->m_type == SocketType::SocketTypeString) {
|
|
// TODO: implement string const node input support
|
|
std::cerr << "Error: const inputs for strings not yet implemented!"
|
|
<< std::endl;
|
|
abort();
|
|
}
|
|
const_node_inputs_buffer_size += const_input->m_type_size;
|
|
}
|
|
|
|
if (const_node_inputs_buffer_size > 0) {
|
|
instance.m_const_node_inputs = new char[const_node_inputs_buffer_size];
|
|
memset(instance.m_const_node_inputs, '\0', const_node_inputs_buffer_size);
|
|
}
|
|
|
|
size_t const_input_buffer_offset = 0;
|
|
for (auto& i : const_inputs) {
|
|
Socket* const_input = i;
|
|
|
|
// TODO: implement string const node input support
|
|
assert(const_input->m_type != SocketType::SocketTypeString);
|
|
|
|
*const_input->m_reference.ptr_ptr =
|
|
&instance.m_const_node_inputs[const_input_buffer_offset];
|
|
memcpy(
|
|
*const_input->m_reference.ptr_ptr,
|
|
&const_input->m_value,
|
|
i->m_type_size);
|
|
|
|
const_input_buffer_offset += i->m_type_size;
|
|
}
|
|
|
|
for (int i = 0; i < m_blend_tree_resource.m_nodes.size(); i++) {
|
|
delete instance_node_descriptors[i];
|
|
}
|
|
}
|
|
|
|
void AnimGraphResource::SetRuntimeNodeProperties(
|
|
AnimGraphBlendTree& result) const {
|
|
for (int i = 2; i < m_blend_tree_resource.m_nodes.size(); i++) {
|
|
const AnimNodeResource& node_resource = m_blend_tree_resource.m_nodes[i];
|
|
|
|
NodeDescriptorBase* node_instance_accessor =
|
|
AnimNodeDescriptorFactory(node_resource.m_type_name, result.m_nodes[i]);
|
|
|
|
std::vector<Socket>& resource_properties =
|
|
node_resource.m_socket_accessor->m_properties;
|
|
for (const auto& property : resource_properties) {
|
|
const std::string& name = property.m_name;
|
|
|
|
switch (property.m_type) {
|
|
case SocketType::SocketTypeBool:
|
|
node_instance_accessor->SetProperty(
|
|
name.c_str(),
|
|
property.m_value.flag);
|
|
break;
|
|
case SocketType::SocketTypeInt:
|
|
node_instance_accessor->SetProperty(
|
|
name.c_str(),
|
|
property.m_value.int_value);
|
|
break;
|
|
case SocketType::SocketTypeFloat:
|
|
node_instance_accessor->SetProperty(
|
|
name.c_str(),
|
|
property.m_value.float_value);
|
|
break;
|
|
case SocketType::SocketTypeVec3:
|
|
node_instance_accessor->SetProperty<Vec3>(
|
|
name.c_str(),
|
|
property.m_value.vec3);
|
|
break;
|
|
case SocketType::SocketTypeQuat:
|
|
node_instance_accessor->SetProperty(
|
|
name.c_str(),
|
|
property.m_value.quat);
|
|
break;
|
|
case SocketType::SocketTypeString:
|
|
node_instance_accessor->SetProperty(
|
|
name.c_str(),
|
|
property.m_value_string);
|
|
break;
|
|
default:
|
|
std::cerr << "Invalid socket type "
|
|
<< static_cast<int>(property.m_type) << std::endl;
|
|
}
|
|
}
|
|
|
|
delete node_instance_accessor;
|
|
}
|
|
}
|
|
|
|
bool AnimGraphResource::SaveStateMachineResourceToFile(
|
|
const char* filename) const {
|
|
assert(false && "Not yet implemented");
|
|
|
|
return false;
|
|
}
|
|
|
|
bool AnimGraphResource::LoadStateMachineResourceFromJson(nlohmann::json const& json_data) {
|
|
assert(false && "Not yet implemented");
|
|
|
|
return false;
|
|
} |