public virtual bool connect(int origin_slot, LGraphNode target, int target_slot)
{
if (graph == null)
{
throw (new Exception("node does not belong to a graph"));
}
if (graph != target.graph)
{
throw (new Exception("nodes do not belong to same graph"));
}
LSlot origin_slot_info = this.outputs[origin_slot];
LSlot target_slot_info = target.inputs[target_slot];
if (origin_slot_info == null || target_slot_info == null)
{
return(false);
}
if (origin_slot_info.type != target_slot_info.type && (origin_slot_info.type != DataType.NONE && target_slot_info.type != DataType.NONE))
{
throw (new Exception("connecting incompatible types"));
}
int id = graph.last_link_id++;
LLink link = new LLink(id, origin_slot_info.type, this.id, origin_slot, target.id, target_slot);
graph.links.Add(link);
origin_slot_info.links.Add(link);
target_slot_info.link = link;
graph.sortByExecutionOrder();
return(true);
}
// Update is called once per frame
public void runStep(float dt = 0)
{
for (int i = 0; i < nodes_in_execution_order.Count; ++i)
{
LGraphNode node = nodes_in_execution_order[i];
node.onExecute();
}
time += dt;
}
public void fromJSONText(string text)
{
clear();
var root = JSON.Parse(text);
last_node_id = root["last_node_id"].AsInt;
last_link_id = root["last_link_id"].AsInt;
var json_links = root["links"];
for (int i = 0; i < json_links.Count; ++i)
{
var json_node = json_links[i];
int id = json_node[0].AsInt;
int origin_id = json_node[1].AsInt;
int origin_slot = json_node[2].AsInt;
int target_id = json_node[3].AsInt;
int target_slot = json_node[4].AsInt;
JSONNode json_type = json_node[5];
DataType type = DataType.NONE;
if (json_type != null && json_type.Value != "0" && Globals.stringToDataType.ContainsKey(json_type))
{
type = Globals.stringToDataType[json_type];
}
LLink link = new LLink(id, type, origin_id, origin_slot, target_id, target_slot);
links.Add(link);
links_by_id[link.id] = link;
}
var json_nodes = root["nodes"];
for (int i = 0; i < json_nodes.Count; ++i)
{
var json_node = json_nodes[i];
string node_type = json_node["type"];
Debug.Log(node_type);
LGraphNode node = LiteGraph.Globals.createNodeType(node_type);
if (node == null)
{
Debug.Log("Error: node type not found: " + node_type);
has_errors = true;
continue;
}
node.graph = this;
nodes.Add(node);
node.configure(json_node);
}
sortByExecutionOrder();
}
public void add(LGraphNode node)
{
if (node.graph != null)
{
throw (new Exception("already has graph"));
}
node.graph = this;
node.id = last_node_id++;
node.order = node.id;
nodes.Add(node);
nodes_by_id.Add(node.id, node);
}
public static void test()
{
Debug.Log("Testing Graph...");
LGraph graph = new LGraph();
LGraphNode node1 = LiteGraph.Globals.createNodeType("math/rand");
graph.add(node1);
LGraphNode node2 = LiteGraph.Globals.createNodeType("basic/watch");
graph.add(node2);
node1.connect(0, node2, 0);
for (int i = 0; i < 100; ++i)
{
graph.runStep();
}
}