first commit

nodes/proc/vp_expr_check_node.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include "../vp_node.h"
+
+namespace vp_nodes {
+    // math expression checker, give right for `1+1=2` and wrong for `sqrt(4)=4`.
+    // note: this node works based on vp_frame_text_target, it will parse expression at the left of `=` and calculate it then compare with the right side of `=` .
+    class vp_expr_check_node: public vp_node
+    {
+    private:
+    protected:
+        virtual std::shared_ptr<vp_objects::vp_meta> handle_frame_meta(std::shared_ptr<vp_objects::vp_frame_meta> meta) override;
+    public:
+        vp_expr_check_node(std::string node_name);
+        ~vp_expr_check_node();
+    };
+}