Originally a "20 line winner", this program demonstrates water ripples across a surface using memblocks.

A set of anti-aliased drawing routines that write directly to an image memblock. This is useful for creating custom graphics while preserving background transparency.

The box and circle commands can draw either an outline or filled-in. The circle has a radial gradient function.

makeMemblockImage(memblock_num, width, height, fill_color)
mem_circle(memblock_num, centerX, centerY, radius, color, fill, preseveBackground)
mem_circle_gradient_radial(memblock_num, centerX, centerY, radius, innerColor, outerColor, gradient_centerX, gradient_centerY, gradient_radius, preseveBackground)
mem_rounded_box(memblock_num, x1, y1, x2, y2, radius, color, fill, preseveBackground)
mem_line(memblock_num, x1, y1, x2, y2, color, preseveBackground)
mem_box(memblock_num, x1, y1, x2, y2, color, fill, preseveBackground)


The preserveBackground option does just what it says. If turned off, the drawing routine will overwrite any pixel data currently in its pixels' positions. If turned on, it will use a form of alpha compositing to blend the drawing operation on top of any current data. It has a few quirks here and there, but works well in most situations.