/** * BumpMap class. * * Makes a bumpmap from a Screen32. * 6 Tables: delta x, y for r, g & b channels. * Just instanciate with the Screen32 and desired (double)height. * @author: Robert Bögniel. * @version: haha. * */ public final class BumpMap { public int mDeltaX[], mDeltaY[]; //Constructor public BumpMap(Screen32 source, double bumpheight) { int sc1, sc2, sc3, sc4; double r1, g1, b1, r2, g2, b2; double r3, g3, b3, r4, g4, b4; int width = source.getwidth(); int height = source.getheight(); mDeltaX = new int[source.getwidthheight()]; mDeltaY = new int[source.getwidthheight()]; for(int i=1; i>16)&255; g1 = (sc1>>8)&255; b1 = (sc1)&255; r2 = (sc2>>16)&255; g2 = (sc2>>8)&255; b2 = (sc2)&255; r3 = (sc3>>16)&255; g3 = (sc3>>8)&255; b3 = (sc3)&255; r4 = (sc4>>16)&255; g4 = (sc4>>8)&255; b4 = (sc4)&255; r1 = (r1+g1+b1)/3; r2 = (r2+g2+b2)/3; r3 = (r3+g3+b3)/3; r4 = (r4+g4+b4)/3; mDeltaY[source.ytab[i]+j] = (int)( ((r1-r2)/512)*bumpheight ); mDeltaX[source.ytab[i]+j] = (int)( ((r3-r4)/512)*bumpheight ); } } } }