1 files changed, 43 insertions, 0 deletions
diff --git a/NodeInput.h b/NodeInput.h
new file mode 100644
index 0000000..73ef6e1
--- /dev/null
+++ b/NodeInput.h
@@ -0,0 +1,43 @@
+#pragma once
+
+#include "Node.h"
+
+class NodeInput : public Node {
+public:
+   NodeInput() = default;
+	NodeInput(const NodeInput * prototype);
+	~NodeInput() = default;
+	virtual void compare();
+	virtual NodeInput * clone() const;
+
+private:
+	NodeInput(const char * type);
+
+   SignalLevel level = UNDEFINED;
+};
+
+// Input LOW and HIGH unicorns:
+
+class NodeInputLow : public NodeInput {
+public:
+	// NodeInputLow(const NodeInputLow * prototype);
+	// ~NodeInputLow() = default;
+	// virtual void compare();
+	// virtual NodeInputLow * clone() const;
+
+private:
+	NodeInputLow(const char * type);
+	constexpr static const char * type = "input_low";
+	static NodeInputLow instance;
+
+   SignalLevel level = LOW;
+};
+
+class NodeInputHigh : public NodeInput {
+private:
+   NodeInputHigh(const char * type);
+	constexpr static const char * type = "input_high";
+	static NodeInputHigh instance;
+
+   SignalLevel level = HIGH;
+};