al_draw_spline
void al_draw_spline(float points[8], ALLEGRO_COLOR color, float thickness)
Draws a Bézier spline given 4 control points.
Parameters:
- points - An array of 4 pairs of coordinates of the 4 control points
- color - Color of the spline
- thickness - Thickness of the spline, pass
<= 0to draw a hairline spline
See also: al_calculate_spline
Examples: ex_prim
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