add angle to allow text rotation
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@ -250,6 +250,8 @@ int GL_Arc(int x0, int y0, int r, double theta, double delta_theta)
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int GL_Text(char *text, int x, int y, int angle)
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{
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NG_IGNORE(angle);
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/* move to (x, y) */
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NG_IGNORE(angle);
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