魔方源代码JavaApplet小程序

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1、import java.awt.*;import java.applet.Applet;public final class rubik extends Applet int i; int j; int k; int n; int o; int p; int q; int lastX; int lastY; int dx; int dy; int rectX; int rectY; Color colList; Color bgcolor; final double sideVec = 0.0, 0.0, 1.0, 0.0, 0.0, -1, 0.0, -1, 0.0, 1.0, 0.0, 0

2、.0, 0.0, 1.0, 0.0, -1, 0.0, 0.0 ; final double corners = -1, -1, -1, 1.0, -1, -1, 1.0, 1.0, -1, -1, 1.0, -1, -1, -1, 1.0, 1.0, -1, 1.0, 1.0, 1.0, 1.0, -1, 1.0, 1.0 ; double topCorners; double botCorners; final int sides = 4, 5, 6, 7, 3, 2, 1, 0, 0, 1, 5, 4, 1, 2, 6, 5, 2, 3, 7, 6, 0, 4, 7, 3 ; final

3、 int nextSide = 2, 3, 4, 5, 4, 3, 2, 5, 1, 3, 0, 5, 1, 4, 0, 2, 1, 5, 0, 3, 2, 0, 4, 1 ; final int mainBlocks = 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3 ; final int twistDir = -1, 1, -1, 1, -1, 1, -1, 1, 1, 1, 1, 1, 1, -1, 1, -1, 1, 1, 1, 1, -1, 1, -1, 1 ; final int col

4、Dir = -1, -1, 1, -1, 1, -1 ; final int circleOrder = 0, 1, 2, 5, 8, 7, 6, 3 ; int topBlocks; int botBlocks; int sideCols; int sideW; int sideH; int dragReg; int twistSide; int nearSide; int buffer; double dragCorn; double dragDir; double eye = 0.3651, 0.1826, -0.9129 ; double eX = 0.9309, -0.0716, 0

5、.3581 ; double eY; double Teye; double TeX; double TeY; double light; double temp = 0.0, 0.0, 0.0 ; double temp2 = 0.0, 0.0, 0.0 ; double newCoord; double sx; double sy; double sdxh; double sdyh; double sdxv; double sdyv; double d; double t1; double t2; double t3; double t4; double t5; double t6; do

6、uble phi; double phibase; double Cphi; double Sphi; double currDragDir; boolean naturalState; boolean twisting; boolean OKtoDrag;double local0; Math m; Graphics offGraphics; Image offImage; public void init() offImage = createImage(120, 120); offGraphics = offImage.getGraphics(); rectX = new int4; r

7、ectY = new int4; newCoord = new double16; dragDir = new double24; dragCorn = new double96; topCorners = new double24; botCorners = new double24; topBlocks = new int24; botBlocks = new int24; buffer = new int12; nearSide = new int12; light = new double3; Teye = new double3; TeX = new double3; TeY = n

8、ew double3; currDragDir = new double2; eY = new double3; vecProd(eye, 0, eX, 0, eY, 0); normalize(eY, 0); colList = new Color120; for (i = 0; i 20; i+) colListi = new Color(103 + i * 8, 103 + i * 8, 103 + i * 8); colListi + 20 = new Color(i * 6, i * 6, 84 + i * 9); colListi + 40 = new Color(84 + i *

9、 9, i * 5, i * 5); colListi + 60 = new Color(i * 6, 84 + i * 9, i * 6); colListi + 80 = new Color(84 + i * 9, 84 + i * 9, i * 6); colListi + 100 = new Color(84 + i * 9, 55 + i * 8, i * 3); sideCols = new int54; for (i = 0; i 54; i+) sideColsi = i / 9; bgcolor = findBGColor(); resize(125, 125); repai

10、nt(); public Color findBGColor() Color color; String string2 = 0123456789abcdef; int an = new int6; String string1 = getParameter(bgcolor); if (string1 != null & string1.length() = 6) for (i = 0; i 6; i+) for (j = 0; j 16; j+) if (string1.charAt(i) = string2.charAt(j) ani = j; color = new Color(an0

11、* 16 + an1, an2 * 16 + an3, an4 * 16 + an5); else color = Color.lightGray; return color; public double scalProd(double ad1, int i, double ad2, int j) return ad1i * ad2j + ad1i + 1 * ad2j + 1 + ad1i + 2 * ad2j + 2; public double vNorm(double ad, int i) return Math.sqrt(adi * adi + adi + 1 * adi + 1 +

12、 adi + 2 * adi + 2); public double cosAng(double ad1, int i, double ad2, int j) return scalProd(ad1, i, ad2, j) / (vNorm(ad1, i) * vNorm(ad2, j); public void normalize(double ad, int i) local0 = vNorm(ad, i); adi = adi / local0; adi + 1 = adi + 1 / local0; adi + 2 = adi + 2 / local0; public void sca

13、lMult(double ad, int i, double d) adi = adi * d; adi + 1 = adi + 1 * d; adi + 2 = adi + 2 * d; public void addVec(double ad1, int i, double ad2, int j) ad2j += ad1i; ad2j + 1 += ad1i + 1; ad2j + 2 += ad1i + 2; public void subVec(double ad1, int i, double ad2, int j) ad2j -= ad1i; ad2j + 1 -= ad1i +

14、1; ad2j + 2 -= ad1i + 2; public void copyVec(double ad1, int i, double ad2, int j) ad2j = ad1i; ad2j + 1 = ad1i + 1; ad2j + 2 = ad1i + 2; public void vecProd(double ad1, int i, double ad2, int j, double ad3, int k) ad3k = ad1i + 1 * ad2j + 2 - ad1i + 2 * ad2j + 1; ad3k + 1 = ad1i + 2 * ad2j - ad1i *

15、 ad2j + 2; ad3k + 2 = ad1i * ad2j + 1 - ad1i + 1 * ad2j; public void cutUpCube() for (i = 0; i 24; i+) topCornersi = cornersi; botCornersi = cornersi; copyVec(sideVec, 3 * twistSide, temp, 0); copyVec(temp, 0, temp2, 0); scalMult(temp, 0, 1.3333); scalMult(temp2, 0, 0.6667); for (i = 0; i 8; i+) boo

16、lean flag = false; for (j = 0; j 4; j+) if (i = sidestwistSide * 4 + j) flag = true; if (flag) subVec(temp2, 0, botCorners, i * 3); else addVec(temp, 0, topCorners, i * 3); for (i = 0; i 24; i+) topBlocksi = mainBlocksi; botBlocksi = mainBlocksi; for (i = 0; i 6; i+) if (i = twistSide) botBlocksi *

17、4 + 1 = 0; botBlocksi * 4 + 3 = 0; else k = -1; for (j = 0; j 4; j+) if (nextSidei * 4 + j = twistSide) k = j; switch (k) case 0: topBlocksi * 4 + 3 = 1; botBlocksi * 4 + 2 = 1; break; case 1: topBlocksi * 4 = 2; botBlocksi * 4 + 1 = 2; break; case 2: topBlocksi * 4 + 2 = 2; botBlocksi * 4 + 3 = 2;

18、break; case 3: topBlocksi * 4 + 1 = 1; botBlocksi * 4 = 1; break; case -1: topBlocksi * 4 + 1 = 0; topBlocksi * 4 + 3 = 0; break; public boolean keyDown(Event event, int i) if (i = 114) twisting = false; naturalState = true; for (this.i = 0; this.i 54; this.i+) sideColsthis.i = this.i / 9; repaint()

19、; else if (i = 115) twisting = false; naturalState = true; for (this.i = 0; this.i 20; this.i+) colorTwist(int)(Math.random() * 6), (int)(Math.random() * 3 + 1.0); repaint(); return false; public boolean mouseDrag(Event event, int i, int j) if (!twisting & OKtoDrag) OKtoDrag = false; boolean flag =

20、false; for (this.i = 0; this.i 0.0 & d5 0.0 & d6 0.6) flag = true; twistSide = nearSidethis.i; this.i = 100; if (flag) if (naturalState) cutUpCube(); naturalState = false; twisting = true; phi = 0.02 * (currDragDir0 * (i - lastX) + currDragDir1 * (j - lastY) / Math.sqrt(currDragDir0 * currDragDir0 +

21、 currDragDir1 * currDragDir1); repaint(); return false; OKtoDrag = false; if (!twisting) dx = lastX - i; copyVec(eX, 0, temp, 0); scalMult(temp, 0, (double)dx * 0.016); addVec(temp, 0, eye, 0); vecProd(eY, 0, eye, 0, eX, 0); normalize(eX, 0); normalize(eye, 0); dy = j - lastY; copyVec(eY, 0, temp, 0

22、); scalMult(temp, 0, (double)dy * 0.016); addVec(temp, 0, eye, 0); vecProd(eye, 0, eX, 0, eY, 0); normalize(eY, 0); normalize(eye, 0); lastX = i; lastY = j; repaint(); else phi = 0.02 * (currDragDir0 * (i - lastX) + currDragDir1 * (j - lastY) / Math.sqrt(currDragDir0 * currDragDir0 + currDragDir1 *

23、currDragDir1); repaint(); return false; public boolean mouseDown(Event event, int i, int j) lastX = i; lastY = j; OKtoDrag = true; return false; public boolean mouseUp(Event event, int i, int j) if (twisting) double d; twisting = false; phibase += phi; phi = 0.0; for (d = phibase; d 0.0; d += 125.66

24、2) /* null body */ ; int k = (int)(d * 3.183); if (k % 5 = 0 | k % 5 = 4) k = (k + 1) / 5 % 4; if (colDirtwistSide 0) k = (4 - k) % 4; phibase = 0.0; naturalState = true; colorTwist(twistSide, k); repaint(); return false; public void colorTwist(int i1, int j1) int k4 = 0; int j4 = j1 * 2; for (int k

25、1 = 0; k1 8; k1+) bufferj4 = sideColsi1 * 9 + circleOrderk1; j4 = (j4 + 1) % 8; for (int i2 = 0; i2 8; i2+) sideColsi1 * 9 + circleOrderi2 = bufferi2; j4 = j1 * 3; for (int j2 = 0; j2 4; j2+) for (int i3 = 0; i3 4; i3+) if (nextSidenextSidei1 * 4 + j2 * 4 + i3 = i1) k4 = i3; for (int j3 = 0; j3 3; j

26、3+) switch (k4) case 0: bufferj4 = sideColsnextSidei1 * 4 + j2 * 9 + j3; break; case 1: bufferj4 = sideColsnextSidei1 * 4 + j2 * 9 + 2 + 3 * j3; break; case 2: bufferj4 = sideColsnextSidei1 * 4 + j2 * 9 + 8 - j3; break; case 3: bufferj4 = sideColsnextSidei1 * 4 + j2 * 9 + 6 - 3 * j3; break; j4 = (j4

27、 + 1) % 12; j4 = 0; for (int k2 = 0; k2 4; k2+) for (int k3 = 0; k3 4; k3+) if (nextSidenextSidei1 * 4 + k2 * 4 + k3 = i1) k4 = k3; for (int i4 = 0; i4 3; i4+) switch (k4) case 0: sideColsnextSidei1 * 4 + k2 * 9 + i4 = bufferj4; break; case 1: sideColsnextSidei1 * 4 + k2 * 9 + 2 + 3 * i4 = bufferj4;

28、 break; case 2: sideColsnextSidei1 * 4 + k2 * 9 + 8 - i4 = bufferj4; break; case 3: sideColsnextSidei1 * 4 + k2 * 9 + 6 - 3 * i4 = bufferj4; break; j4+; public void paint(Graphics g) dragReg = 0; offGraphics.setColor(bgcolor); offGraphics.fillRect(0, 0, 120, 120); if (naturalState) fixBlock(eye, eX,

29、 eY, corners, mainBlocks, 0); else copyVec(eye, 0, Teye, 0); copyVec(eX, 0, TeX, 0); Cphi = Math.cos(phi + phibase); Sphi = -Math.sin(phi + phibase); switch (twistSide) case 0: Teye0 = Cphi * eye0 + Sphi * eye1; TeX0 = Cphi * eX0 + Sphi * eX1; Teye1 = -Sphi * eye0 + Cphi * eye1; TeX1 = -Sphi * eX0 +

30、 Cphi * eX1; break; case 1: Teye0 = Cphi * eye0 - Sphi * eye1; TeX0 = Cphi * eX0 - Sphi * eX1; Teye1 = Sphi * eye0 + Cphi * eye1; TeX1 = Sphi * eX0 + Cphi * eX1; break; case 2: Teye0 = Cphi * eye0 - Sphi * eye2; TeX0 = Cphi * eX0 - Sphi * eX2; Teye2 = Sphi * eye0 + Cphi * eye2; TeX2 = Sphi * eX0 + C

31、phi * eX2; break; case 3: Teye1 = Cphi * eye1 + Sphi * eye2; TeX1 = Cphi * eX1 + Sphi * eX2; Teye2 = -Sphi * eye1 + Cphi * eye2; TeX2 = -Sphi * eX1 + Cphi * eX2; break; case 4: Teye0 = Cphi * eye0 + Sphi * eye2; TeX0 = Cphi * eX0 + Sphi * eX2; Teye2 = -Sphi * eye0 + Cphi * eye2; TeX2 = -Sphi * eX0 +

32、 Cphi * eX2; break; case 5: Teye1 = Cphi * eye1 - Sphi * eye2; TeX1 = Cphi * eX1 - Sphi * eX2; Teye2 = Sphi * eye1 + Cphi * eye2; TeX2 = Sphi * eX1 + Cphi * eX2; break; vecProd(Teye, 0, TeX, 0, TeY, 0); if (scalProd(eye, 0, sideVec, twistSide * 3) 0.0) fixBlock(Teye, TeX, TeY, topCorners, topBlocks,

33、 2); fixBlock(eye, eX, eY, botCorners, botBlocks, 1); else fixBlock(eye, eX, eY, botCorners, botBlocks, 1); fixBlock(Teye, TeX, TeY, topCorners, topBlocks, 2); g.drawImage(offImage, 0, 0, this); public void update(Graphics g) paint(g); public void fixBlock(double ad1, double ad2, double ad3, double

34、ad4, int an, int i) copyVec(ad1, 0, light, 0); scalMult(light, 0, -3); addVec(ad2, 0, light, 0); subVec(ad3, 0, light, 0); for (this.i = 0; this.i 8; this.i+) newCoordthis.i * 2 = 60 + 35.1 * scalProd(ad4, this.i * 3, ad2, 0); newCoordthis.i * 2 + 1 = 60 - 35.1 * scalProd(ad4, this.i * 3, ad3, 0); f

35、or (this.i = 0; this.i 0.001) k = (int)(9.6 * (1.0 - cosAng(light, 0, sideVec, 3 * this.i); offGraphics.setColor(Color.black); for (j = 0; j 0) sx = newCoord2 * sidesthis.i * 4; sy = newCoord2 * sidesthis.i * 4 + 1; sdxh = (newCoord2 * sidesthis.i * 4 + 1 - sx) / sideW; sdxv = (newCoord2 * sidesthis

36、.i * 4 + 3 - sx) / sideH; sdyh = (newCoord2 * sidesthis.i * 4 + 1 + 1 - sy) / sideW; sdyv = (newCoord2 * sidesthis.i * 4 + 3 + 1 - sy) / sideH; p = anthis.i * 4 + 2; for (n = 0; n sideH; n+) q = anthis.i * 4; for (o = 0; o sideW; o+) rectX0 = (int)(sx + (double)o + 0.1) * sdxh + (double)n + 0.1) * s

37、dxv); rectX1 = (int)(sx + (double)o + 0.9) * sdxh + (double)n + 0.1) * sdxv); rectX2 = (int)(sx + (double)o + 0.9) * sdxh + (double)n + 0.9) * sdxv); rectX3 = (int)(sx + (double)o + 0.1) * sdxh + (double)n + 0.9) * sdxv); rectY0 = (int)(sy + (double)o + 0.1) * sdyh + (double)n + 0.1) * sdyv); rectY1 = (int)(sy + (double)o + 0.9) * sdyh + (double)n + 0.1) * sdyv); rectY2 = (int)(sy + (doubl