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一段眼睛跟著鼠標轉動的跟蹤眼代碼

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原文： http://www.java2000.net/p10992

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一段眼睛跟著鼠標轉動的跟蹤眼代碼
  1. import ?java.applet.Applet;
  2. import ?java.awt.Color;
  3. import ?java.awt.Dimension;
  4. import ?java.awt.Font;
  5. import ?java.awt.Graphics;
  6. import ?java.awt.Image;
  8. import ?net.java2000.tools.NoNull;
  10. /**
  11. ?*?一段眼睛跟著鼠標轉動的跟蹤眼代碼。<br>
  12. ?*?你可以單獨運行，或者放在html里面<br>
  13. ?*?<applet?code="Eye"?codebase="codebase"?width="400"?height="135"
  14. ?*?name="eyesApplet"><br>
  15. ?*?<param?name="faceFile"?value="doofus.jpg"/><br>
  16. ?*?<param?name="testMode"?value="false"/>?<br>
  17. ?*?<param?name="leftEyeX"?value="75"/>?<br>
  18. ?*?<param?name="leftEyeY"?value="77"/>?<br>
  19. ?*?<param?name="rightEyeX"?value="310"/>?<br>
  20. ?*?<param?name="rightEyeY"?value="75"/><br>
  21. ?*?<param?name="irisRadius"?value="20"/>?<br>
  22. ?*?<param?name="pupilRadius"?value="8"/><br>
  23. ?*?<param?name="leftEyeRadius"?value="5"/><br>
  24. ?*?<param?name="rightEyeRadius"?value="5"/>?<br>
  25. ?*?<param?name="horizontalSkew"?value="3.5"/><br>
  26. ?*?<param?name="eyeIndependence"?value="0.4"/>?<br>
  27. ?*?<param?name="irisRed"?value="128"/><br>
  28. ?*?<param?name="irisGreen"?value="64"/>?<br>
  29. ?*?<param?name="irisBlue"?value="0"/>?<br>
  30. ?*?<param?name="verticalOffset"?value="100"/>?<br>
  31. ?*?</applet>
  32. ?*?
  33. ?*?@author?趙學慶，Java世紀網(java2000.net)
  34. ?*?
  35. ?*/
  36. public ? class ?Eye? extends ?Applet?{
  37. ?? private ? static ? final ? long ?serialVersionUID?=?4124530672062457469L;
  38. ?? private ?String?mErrorMessage;
  39. ?? private ?Image?mFace;
  40. ?? private ?Color?mIrisColor,?mPupilColor?=?Color.black;
  41. ?? private ? int ?mMouseX,?mMouseY;
  42. ?? private ? int ?mLeftEyeX,?mLeftEyeY,?mRightEyeX,?mRightEyeY;
  43. ?? private ? int ?mLeftIrisX,?mLeftIrisY,?mRightIrisX,?mRightIrisY;
  44. ?? private ? int ?mLeftPupilX,?mLeftPupilY,?mRightPupilX,?mRightPupilY;
  45. ?? private ? int ?mIrisRadius,?mPupilRadius;
  46. ?? private ? int ?mLeftEyeRadius,?mRightEyeRadius,?mLeftPupilTR,?mRightPupilTR;
  47. ?? private ? int ?mVerticalOffset;
  49. ?? //?默認值
  50. ?? private ? int ?mFaceX?=? 0 ,?mFaceY?=? 0 ;? //?image?start?at?0,?0
  51. ?? private ? int ?mIrisRed?=? 128 ,?mIrisGreen?=? 64 ,?mIrisBlue?=? 0 ;
  52. ?? private ? double ?mHorizontalSkew?=? 3.5 ,?mEyeIndependence?=? 0.5 ,?mGapFactor?=? 1.5 ;
  53. ?? private ? boolean ?mTestMode?=? false ;
  55. ?? private ?Dimension?mDimension;
  56. ?? private ?Image?mImage;
  57. ?? private ?Graphics?mGraphics;
  59. ?? public ? void ?init()?{
  60. ????mErrorMessage?=? null ;
  62. ???? try ?{
  63. ?????? //?設置的一些參數
  64. ?????? //?背景的面部圖片
  65. ??????mFace?=?getImage(getCodeBase(),?NoNull.toString(getParameter( "faceFile" ),? "doofus.jpg" ));
  67. ?????? //?左側眼睛的x坐標
  68. ??????mLeftEyeX?=?mLeftIrisX?=?mLeftPupilX?=?Integer.parseInt(NoNull.toString(
  69. ??????????getParameter( "leftEyeX" ),? "75" ));
  71. ?????? //?左側眼睛的y坐標
  72. ??????mLeftEyeY?=?mLeftIrisY?=?mLeftPupilY?=?Integer.parseInt(NoNull.toString(
  73. ??????????getParameter( "leftEyeY" ),? "77" ));
  75. ?????? //?右側眼睛的x坐標
  76. ??????mRightEyeX?=?mRightIrisX?=?mRightPupilX?=?Integer.parseInt(NoNull.toString(
  77. ??????????getParameter( "rightEyeX" ),? "310" ));
  79. ?????? //?右側眼睛的y坐標
  80. ??????mRightEyeY?=?mRightIrisY?=?mRightPupilY?=?Integer.parseInt(NoNull.toString(
  81. ??????????getParameter( "rightEyeY" ),? "75" ));
  83. ?????? //?眼睛的白眼球半徑
  84. ??????mIrisRadius?=?Integer.parseInt(NoNull.toString(getParameter( "irisRadius" ),? "20" ));
  86. ?????? //?眼睛的瞳孔半徑
  87. ??????mPupilRadius?=?Integer.parseInt(NoNull.toString(getParameter( "pupilRadius" ),? "8" ));
  89. ?????? //?左眼睛的移動半徑
  90. ??????mLeftEyeRadius?=?Integer.parseInt(NoNull.toString(getParameter( "leftEyeRadius" ),? "15" ));
  92. ?????? //?右眼睛的移動半徑
  93. ??????mRightEyeRadius?=?Integer.parseInt(NoNull.toString(getParameter( "rightEyeRadius" ),? "5" ));
  95. ?????? //?可選參數
  96. ?????? if ?(getParameter( "testMode" )?!=? null )
  97. ????????mTestMode?=?Boolean.valueOf(NoNull.toString(getParameter( "testMode" ),? "true" ))
  98. ????????????.booleanValue();
  100. ?????? if ?(getParameter( "horizontalSkew" )?!=? null )
  101. ????????mHorizontalSkew?=?Double.valueOf(
  102. ????????????NoNull.toString(getParameter( "horizontalSkew" ),? "13.5" )).doubleValue();
  103. ?????? if ?(getParameter( "eyeIndependence" )?!=? null )
  104. ????????mEyeIndependence?=?Double.valueOf(
  105. ????????????NoNull.toString(getParameter( "eyeIndependence" ),? "0.4" )).doubleValue();
  106. ?????? if ?(getParameter( "irisRed" )?!=? null )
  107. ????????mIrisRed?=?Integer.parseInt(NoNull.toString(getParameter( "irisRed" ),? "128" ));
  108. ?????? if ?(getParameter( "irisGreen" )?!=? null )
  109. ????????mIrisGreen?=?Integer.parseInt(NoNull.toString(getParameter( "irisGreen" ),? "64" ));
  110. ?????? if ?(getParameter( "irisBlue" )?!=? null )
  111. ????????mIrisBlue?=?Integer.parseInt(NoNull.toString(getParameter( "irisBlue" ),? "0" ));
  112. ??????mIrisColor?=? new ?Color(mIrisRed,?mIrisGreen,?mIrisBlue);
  113. ?????? if ?(getParameter( "verticalOffset" )?!=? null )
  114. ????????mVerticalOffset?=?Integer.parseInt(NoNull.toString(getParameter( "verticalOffset" ),
  115. ???????????? "100" ));
  116. ????}? catch ?(Exception?e)?{
  117. ??????mErrorMessage?=? "Bad?or?missing?required?parameter." ;
  118. ??????e.printStackTrace();
  119. ????}
  121. ???? //?計算眼球的移動半徑
  122. ????mLeftPupilTR?=?mLeftEyeRadius?+?mIrisRadius?-?( int )?(mGapFactor?*?mPupilRadius);
  123. ????mRightPupilTR?=?mRightEyeRadius?+?mIrisRadius?-?( int )?(mGapFactor?*?mPupilRadius);
  125. ???? //?偵聽鼠標事件
  126. ????MouseMotion?aMouseMotion?=? new ?MouseMotion();
  127. ???? this .addMouseMotionListener(aMouseMotion);
  128. ???? this .setSize( 400 ,? 135 );
  129. ??}
  131. ?? public ? void ?paintFrame(Graphics?g)?{
  132. ???? if ?(mErrorMessage?!=? null )?{
  133. ??????showError(g);
  134. ?????? return ;
  135. ????}
  137. ???? //?背景面部
  138. ????g.drawImage(mFace,?mFaceX,?mFaceY,? this );
  140. ???? //?畫外部的球體
  141. ????g.setColor(mIrisColor);
  142. ????g.fillOval(mLeftIrisX?-?mIrisRadius,?mLeftIrisY?-?mIrisRadius,? 2 ?*?mIrisRadius,
  143. ???????? 2 ?*?mIrisRadius);
  144. ????g.fillOval(mRightIrisX?-?mIrisRadius,?mRightIrisY?-?mIrisRadius,? 2 ?*?mIrisRadius,
  145. ???????? 2 ?*?mIrisRadius);
  146. ???? //?畫瞳孔
  147. ????g.setColor(mPupilColor);
  148. ????g.fillOval(mLeftPupilX?-?mPupilRadius,?mLeftPupilY?-?mPupilRadius,? 2 ?*?mPupilRadius,
  149. ???????? 2 ?*?mPupilRadius);
  150. ????g.fillOval(mRightPupilX?-?mPupilRadius,?mRightPupilY?-?mPupilRadius,? 2 ?*?mPupilRadius,
  151. ???????? 2 ?*?mPupilRadius);
  153. ???? if ?(mTestMode)?{
  154. ??????g.drawOval(mLeftEyeX?-?mLeftEyeRadius,?mLeftEyeY?-?mLeftEyeRadius,? 2 ?*?mLeftEyeRadius,
  155. ?????????? 2 ?*?mLeftEyeRadius);
  156. ??????g.drawOval(mRightEyeX?-?mRightEyeRadius,?mRightEyeY?-?mRightEyeRadius,
  157. ?????????? 2 ?*?mRightEyeRadius,? 2 ?*?mRightEyeRadius);
  158. ????}
  159. ??}
  161. ?? public ? void ?mouseMoved()?{
  162. ???? //?coordinates?for?the?left?iris
  163. ???? int ?leftDX?=?mMouseX?-?mLeftEyeX;
  164. ???? int ?leftDY?=?mMouseY?-?mLeftEyeY;
  165. ???? if ?(leftDY?==? 0 )
  166. ??????leftDY?=? 1 ;? //?prevent?divide?by?zero
  167. ???? double ?leftDXDY?=?( double )?leftDX?/?leftDY;
  168. ???? double ?leftdy?=?Math.sqrt(Math.pow(mLeftEyeRadius,? 2 )?/?(Math.pow(leftDXDY,? 2 )?+? 1 ));
  169. ???? if ?(leftDY?<? 0 )?{
  170. ??????leftdy?=?-leftdy;
  171. ????}
  172. ???? double ?leftdx?=?leftDXDY?*?leftdy?*?mHorizontalSkew;
  174. ???? //?coordinates?for?the?right?iris
  175. ???? int ?rightDX?=?mMouseX?-?mRightEyeX;
  176. ???? int ?rightDY?=?mMouseY?-?mRightEyeY;
  177. ???? if ?(rightDY?==? 0 )
  178. ??????rightDY?=? 1 ;? //?prevent?divide?by?zero
  179. ???? double ?rightDXDY?=?( double )?rightDX?/?rightDY;
  180. ???? double ?rightdy?=?Math.sqrt(Math.pow(mRightEyeRadius,? 2 )?/?(Math.pow(rightDXDY,? 2 )?+? 1 ));
  181. ???? if ?(rightDY?<? 0 )?{
  182. ??????rightdy?=?-rightdy;
  183. ????}
  184. ???? double ?rightdx?=?rightDXDY?*?rightdy?*?mHorizontalSkew;
  186. ???? //?adjustments?for?the?irises
  187. ???? double ?avedx?=?(rightdx?+?leftdx)?/? 2 ;
  188. ???? double ?avedy?=?(rightdy?+?leftdy)?/? 2 ;
  189. ????leftdx?=?leftdx?+?(avedx?-?leftdx)?*?( 1 ?-?mEyeIndependence);
  190. ????rightdx?=?rightdx?+?(avedx?-?rightdx)?*?( 1 ?-?mEyeIndependence);
  191. ????leftdy?=?leftdy?+?(avedy?-?leftdy)?*?( 1 ?-?mEyeIndependence);
  192. ????rightdy?=?rightdy?+?(avedy?-?rightdy)?*?( 1 ?-?mEyeIndependence);
  193. ???? //?new?iris?positions
  194. ????mLeftIrisX?=?mLeftEyeX?+?( int )?leftdx;
  195. ????mLeftIrisY?=?mLeftEyeY?+?( int )?leftdy;
  196. ????mRightIrisX?=?mRightEyeX?+?( int )?rightdx;
  197. ????mRightIrisY?=?mRightEyeY?+?( int )?rightdy;
  199. ???? //?coordinates?for?the?left?pupil
  200. ???? double ?leftpdy?=?Math.sqrt(Math.pow(mLeftPupilTR,? 2 )?/?(Math.pow(leftDXDY,? 2 )?+? 1 ));
  201. ???? if ?(leftDY?<? 0 )?{
  202. ??????leftpdy?=?-leftpdy;
  203. ????}
  204. ???? double ?leftpdx?=?leftDXDY?*?leftpdy?*?(mHorizontalSkew?-?mGapFactor);
  206. ???? //?coordinates?for?the?right?pupil
  207. ???? double ?rightpdy?=?Math.sqrt(Math.pow(mRightPupilTR,? 2 )?/?(Math.pow(rightDXDY,? 2 )?+? 1 ));
  208. ???? if ?(rightDY?<? 0 )?{
  209. ??????rightpdy?=?-rightpdy;
  210. ????}
  211. ???? double ?rightpdx?=?rightDXDY?*?rightpdy?*?(mHorizontalSkew?-?mGapFactor);
  213. ???? //?adjustments?for?the?pupils
  214. ???? double ?avepdx?=?(rightpdx?+?leftpdx)?/? 2 ;
  215. ???? double ?avepdy?=?(rightpdy?+?leftpdy)?/? 2 ;
  216. ????leftpdx?=?leftpdx?+?(avepdx?-?leftpdx)?*?( 1 ?-?mEyeIndependence);
  217. ????rightpdx?=?rightpdx?+?(avepdx?-?rightpdx)?*?( 1 ?-?mEyeIndependence);
  218. ????leftpdy?=?leftpdy?+?(avepdy?-?leftpdy)?*?( 1 ?-?mEyeIndependence);
  219. ????rightpdy?=?rightpdy?+?(avepdy?-?rightpdy)?*?( 1 ?-?mEyeIndependence);
  221. ???? //?new?pupil?positions
  222. ????mLeftPupilX?=?mLeftEyeX?+?( int )?leftpdx;
  223. ????mLeftPupilY?=?mLeftEyeY?+?( int )?leftpdy;
  224. ????mRightPupilX?=?mRightEyeX?+?( int )?rightpdx;
  225. ????mRightPupilY?=?mRightEyeY?+?( int )?rightpdy;
  227. ????repaint();
  228. ??}
  230. ?? public ? void ?update(Graphics?g)?{
  231. ????paint(g);
  232. ??}
  234. ?? public ? void ?paint(Graphics?g)?{
  235. ????Dimension?d?=?getSize();
  237. ???? //?create?the?offscreen?graphics?context
  238. ???? if ?((mGraphics?==? null )?||?(d.width?!=?mDimension.width)
  239. ????????||?(d.height?!=?mDimension.height))?{
  240. ??????mDimension?=?d;
  241. ??????mImage?=?createImage(d.width,?d.height);
  242. ??????mGraphics?=?mImage.getGraphics();
  243. ????}
  245. ???? //?erase?the?previous?image
  246. ????mGraphics.setColor(getBackground());
  247. ????mGraphics.fillRect( 0 ,? 0 ,?d.width,?d.height);
  248. ????mGraphics.setColor(Color.black);
  250. ???? //?paint?the?frame?into?the?image
  251. ????paintFrame(mGraphics);
  253. ???? //?paint?the?image?onto?the?screen
  254. ????g.drawImage(mImage,? 0 ,? 0 ,? null );
  255. ??}
  257. ?? class ?MouseMotion? extends ?java.awt.event.MouseMotionAdapter?{
  258. ???? public ? void ?mouseMoved(java.awt.event.MouseEvent?event)?{
  259. ??????Object?object?=?event.getSource();
  260. ?????? if ?(object?==?Eye. this )
  261. ????????mouseMovedInApplet(event);
  262. ????}
  263. ??}
  265. ?? void ?mouseMovedInApplet(java.awt.event.MouseEvent?event)?{
  266. ???? //?get?the?mouse?coords
  267. ????mMouseX?=?event.getX();
  268. ????mMouseY?=?event.getY();
  269. ????mouseMoved();
  270. ??}
  272. ?? public ? void ?mouseMovedInBrowser( int ?x,? int ?y,? int ?windowWidth)?{
  273. ???? int ?appletW?=?getSize().width;
  275. ???? //?adjust?mouse?x?and?y?relative?to?applet?position
  276. ????mMouseX?=?x?-?(windowWidth?-?appletW)?/? 2 ;
  277. ????mMouseY?=?y?-?mVerticalOffset;
  278. ????mouseMoved();
  279. ??}
  281. ?? private ? void ?showError(Graphics?g)?{
  282. ????g.setFont( new ?Font( "TimesRoman" ,?Font.BOLD,? 12 ));
  283. ????g.drawString(mErrorMessage,? 10 ,? 20 );
  284. ??}
  285. }

一段眼睛跟著鼠標轉動的跟蹤眼代碼


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