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using System;
namespace AmplifyShaderEditor
{
[Serializable]
[NodeAttributes( "Negate", "Math Operators", "Negate or invert an input value" )]
public sealed class NegateNode : ParentNode
{
protected override void CommonInit( int uniqueId )
{
base.CommonInit( uniqueId );
AddInputPort( WirePortDataType.FLOAT, false, Constants.EmptyPortValue );
AddOutputPort( WirePortDataType.FLOAT, Constants.EmptyPortValue );
m_useInternalPortData = true;
m_previewShaderGUID = "b035bc40da1ac7c4eafad4116382ec79";
}
public override void OnInputPortConnected( int portId, int otherNodeId, int otherPortId, bool activateNode = true )
{
base.OnInputPortConnected( portId, otherNodeId, otherPortId, activateNode );
m_inputPorts[ 0 ].MatchPortToConnection();
m_outputPorts[ 0 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
}
public override void OnConnectedOutputNodeChanges( int outputPortId, int otherNodeId, int otherPortId, string name, WirePortDataType type )
{
base.OnConnectedOutputNodeChanges( outputPortId, otherNodeId, otherPortId, name, type );
m_inputPorts[ 0 ].MatchPortToConnection();
m_outputPorts[ 0 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
}
public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar )
{
string result = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
if ( result.StartsWith( "-" ) )
{
return result.Remove( 0, 1 );
}
else
{
return "-" + result;
}
}
}
}
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