{"id":590,"date":"2009-10-31T16:08:08","date_gmt":"2009-10-31T08:08:08","guid":{"rendered":"http:\/\/test999.eblhost.com\/blog\/?p=590"},"modified":"2009-10-31T16:08:08","modified_gmt":"2009-10-31T08:08:08","slug":"processing%ef%bc%9a%e7%ae%97%e6%b3%95%ef%bc%88%e4%b8%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/learn.travelchinawith.me\/?p=590","title":{"rendered":"Processing\uff1a\u7b97\u6cd5\uff08\u4e0b\uff09"},"content":{"rendered":"

6.2.4. \u96e8\u6ef4<\/strong>
\n\u53ef\u4ee5\u5206\u4e3a\u5982\u4e0b\u6b65\u9aa4\uff1a
\n1\uff09\u4e00\u4e2a\u8fd0\u52a8\u7684\u96e8\u6ef4
\n2\uff09\u4e00\u4e2a\u96e8\u6ef4\u5bf9\u8c61\u7684\u6570\u7ec4
\n3\uff09\u968f\u673a\u6570\u91cf\u7684\u96e8\u6ef4\uff08\u6bcf\u6b21\u663e\u793a\u4e00\u6ef4\uff09
\n4\uff09\u4f18\u5316\u96e8\u6ef4\u5916\u5f62<\/p>\n

1\uff09\u6bd4\u8f83\u7b80\u5355\uff08\u5148\u7528\u4e2a\u7b80\u5355\u7684\u5706\u5f62\u4ee3\u66ff\uff09
\n float x,y; \/\/ \u96e8\u6ef4\u4f4d\u7f6e\u53d8\u91cf
\nvoid setup() {
\nsize(400,400);
\nbackground(0);
\nx = width\/2;
\ny = 0;
\n}
\nvoid draw() {
\nbackground(255);
\n\/\/ \u663e\u793a\u96e8\u6ef4
\nfill(50,100,150);
\nnoStroke();
\nellipse(x,y,16,16);
\n\/\/ \u79fb\u52a8\u96e8\u6ef4
\ny++ ;
\n} <\/span><\/em><\/p>\n

\u518d\u6b21\uff0c\u6211\u4eec\u9700\u8981\u901a\u8fc7\u5c06\u96e8\u6ef4\u505a\u6210\u7c7b\uff0c\u800c\u5f97\u5230\u4e00\u4e2a\u5173\u4e8e\u96e8\u6ef4\u7c7b\u7684\u6570\u7ec4\uff0c\u4ee5\u5b9e\u73b0\u5f88\u591a\u96e8\u6ef4\u3002\u6211\u4eec\u53ef\u4ee5\u4e3a\u5176\u589e\u52a0\u8bf8\u5982\u901f\u5ea6\u6216\u5927\u5c0f\u7b49\u53d8\u91cf\uff0c\u540c\u65f6\u8fd8\u53ef\u4ee5\u52a0\u5165\u4e00\u4e2a\u6d4b\u8bd5\u96e8\u6ef4\u662f\u5426\u6ef4\u5230\u5730\u9762\u7684\u51fd\u6570\u3002
\n class Drop {
\nfloat x,y; \/\/ \u96e8\u6ef4\u4f4d\u7f6e\u53d8\u91cf
\nfloat speed; \/\/ \u96e8\u6ef4\u901f\u5ea6
\ncolor c; \/\/ \u96e8\u6ef4\u989c\u8272
\nfloat r; \/\/ \u96e8\u6ef4\u534a\u5f84<\/span><\/em><\/p>\n

Drop() {
\nr = 8; \/\/ \u6240\u6709\u96e8\u6ef4\u90fd\u662f\u540c\u6837\u5927\u5c0f
\nx = random(width); \/\/ \u7531\u4e00\u4e2a\u968f\u673a\u7684x\u4f4d\u7f6e\u5f00\u59cb\u6ef4\u843d
\ny = -r*4; \/\/ \u4ece\u5c4f\u5e55\u7a0d\u5fae\u9760\u4e0a\u6ef4\u843d
\nspeed = random(1,5); \/\/ \u9009\u53d6\u4e00\u4e2a\u968f\u673a\u901f\u5ea6
\nc = color(50,100,150); \/\/ \u989c\u8272
\n}<\/span><\/em><\/p>\n

\/\/ \u8ba9\u96e8\u6ef4\u6ef4\u843d
\nvoid move() {
\ny += speed; \/\/ \u4ee5speed\u7684\u901f\u5ea6\u8fd0\u52a8
\n} <\/span><\/em><\/p>\n

\/\/ \u68c0\u67e5\u5176\u662f\u5426\u843d\u5730
\nboolean reachedBottom() {
\n\/\/ \u5982\u679c\u6211\u4eec\u8d85\u8fc7\u4e86\u5e95\u90e8\u4e00\u70b9\u70b9
\nif (y > height + r*4){
\nreturn true;
\n} else {
\nreturn false;
\n}
\n} <\/span><\/em><\/p>\n

\/\/ \u663e\u793a\u96e8\u6ef4
\nvoid display() {
\nfill(50,100,150);
\nnoStroke();
\nellipse(x,y,r*2,r*2);
\n}
\n} <\/span><\/em><\/p>\n

2\uff09\u4ece\u4e00\u6ef4\u5230\u4e00\u4e2a\u6570\u7ec4\u6ef4
\n \/\/ \u96e8\u6ef4\u6570\u7ec4
\nDrop[] drops = new Drop[50]; <\/span><\/em><\/p>\n

void setup() {
\nsize(400,400);
\nsmooth();
\n\/\/ \u521d\u59cb\u5316\u6240\u6709\u96e8\u6ef4
\nfor (int i = 0; i < drops.length; i++ ) {
\ndrops[i] = new Drop();
\n}
\n} <\/span><\/em><\/p>\n

void draw() {
\nbackground(255);
\n\/\/ \u79fb\u52a8\u5e76\u663e\u793a\u6240\u6709\u96e8\u6ef4
\nfor (int i = 0; i < drops.length; i++ ) {
\ndrops[i].move();
\ndrops[i].display();
\n}
\n}<\/span><\/em><\/p>\n

\u73b0\u5728\u7684\u95ee\u9898\u662f\uff0c\u5168\u90e8\u96e8\u6ef4\u4e00\u6b21\u6027\u5c31\u4e0b\u6765\u4e86\u3002\u800c\u6211\u4eec\u6b63\u5728\u5236\u4f5c\u7684\u6e38\u620f\u8981\u6c42\u6211\u4eec\u6bcfN\u79d2\u843d\u4e00\u6ef4\u2014\u2014\u56e0\u6b64\u73b0\u5728\u6211\u4eec\u5c31\u5c06\u8fdb\u5165\u7b2c3\uff09\u6b65\u3002\u6211\u4eec\u5148\u629b\u5f00\u65f6\u95f4\u95f4\u9694\u95ee\u9898\uff0c\u5148\u505a\u5230\u6bcf\u4e00\u5e27\u66f4\u65b0\u4e00\u6ef4\uff0c\u7136\u540e\u5c06\u6570\u7ec4\u6269\u5927\uff0c\u4ee5\u5bb9\u7eb3\u66f4\u591a\u96e8\u6ef4\u3002<\/p>\n

\u8981\u505a\u5230\u4e0a\u8fb9\u8bf4\u7684\uff0c\u6211\u4eec\u8981\u542f\u7528\u4e00\u4e2a\u65b0\u7684\u53d8\u91cf\u6765\u8bb0\u5f55\u96e8\u6ef4\u7684\u603b\u6570\u2014\u2014\u201ctotalDrops\u201d\u3002<\/p>\n

Setup\uff1a
\n\u25ce \u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3a1000\u7684\u96e8\u6ef4\u6570\u7ec4
\n\u25ce \u8bbe\u7f6etotalDrops \uff1d 0\u3002<\/p>\n

Draw\uff1a
\n\u25ce \u5728\u6570\u7ec4totalDrops\u7684\u4f4d\u7f6e\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u96e8\u6ef4\u3002
\n\u25ce \u9012\u589e totalDrops\uff08\u56e0\u6b64\u4e0b\u4e00\u6b21\u6211\u4eec\u5230\u8fd9\u4e2a\u4f4d\u7f6e\u7684\u65f6\u5019\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u6570\u7ec4\u7684\u53e6\u4e00\u4e2a\u70b9\u521b\u5efa\u4e00\u6ef4\u96e8\uff09\u3002
\n\u25ce \u82e5totalDrops\u8d85\u51fa\u6570\u7ec4\u7684\u5927\u5c0f\uff0c\u5c06\u5b83\u91cd\u8bbe\u4e3a0\u5e76\u4ece\u5934\u5f00\u59cb\u3002
\n\u25ce \u79fb\u52a8\u5e76\u663e\u793a\u6240\u6709\u53ef\u7528\u7684\u96e8\u6ef4\uff08\u4f8b\u5982totalDrops\uff09<\/p>\n

\u4ee3\u7801\u5982\u4e0b\uff1a
\n \/\/ \u96e8\u6ef4\u6570\u7ec4
\nDrop[] drops = new Drop[1000];<\/span><\/em><\/p>\n

\/\/ \u4e00\u4e2a\u65b0\u7684\u50a8\u5b58\u96e8\u6ef4\u603b\u6570\u7684\u53d8\u91cf
\nint totalDrops = 0;<\/span><\/em><\/p>\n

void setup() {
\nsize(400,400);
\nsmooth();
\nbackground(0);
\n}<\/span><\/em><\/p>\n

void draw() {
\nbackground(255);<\/span><\/em><\/p>\n

\/\/ \u521d\u59cb\u5316\u4e00\u6ef4\u96e8
\ndrops[totalDrops] = new Drop();
\n\/\/ \u9012\u589etotalDrops
\ntotalDrops++ ;
\n\/\/ \u5982\u679c\u5230\u4e86\u6570\u7ec4\u6700\u672b
\nif (totalDrops >= drops.length) {
\ntotalDrops = 0; \/\/ \u91cd\u542f
\n}<\/span><\/em><\/p>\n

\/\/ \u79fb\u52a8\u5e76\u663e\u793a\u96e8\u6ef4
\nfor (int i = 0; i < totalDrops; i++ ) { \/\/ \u65b0\u7279\u6027\uff01\u6211\u4eec\u5e76\u975e\u79fb\u52a8\u5e76\u663e\u793a\u6240\u6709\u96e8\u6ef4\uff0c\u4ec5\u663e\u793a\u5f53\u524d\u663e\u793a\u7684\u201ctotalDrops\u201d
\ndrops[i].move();
\ndrops[i].display();
\n}
\n}<\/span><\/em><\/p>\n

\"\u96e8\u6ef4\"<\/a>
\u96e8\u6ef4<\/figcaption><\/figure>\n

4\uff09\u597d\u4e86\uff0c\u4f60\u77e5\u9053\u4e00\u4e2a\u5706\u5f62\u7684\u786e\u4e0d\u50cf\u4e00\u6ef4\u96e8\uff0c\u6240\u4ee5\u6211\u4eec\u73b0\u5728\u60f3\u529e\u6cd5\u6a21\u62df\u4e00\u6ef4\u96e8\u7684\u6837\u5b50\u3002Daniel\u7528\u4e86\u4e00\u4e2a\u806a\u660e\u7684\u65b9\u6cd5\uff0c\u5728\u5782\u76f4\u4f4d\u7f6e\u753b\u4e00\u4e32\u5706\uff0c\u4ece\u5c0f\u5230\u5927\u3002
\n background(255);
\nfor (int i = 2; i < 8; i++ ){
\nnoStroke();
\nfill(50,100,150);
\nellipse(width\/2,height\/2+i*4,i*2,i*2);
\n}<\/span><\/em><\/p>\n

\"\u96e8\u6ef4\u6570\u7ec4\"<\/a>
\u96e8\u6ef4\u6570\u7ec4<\/figcaption><\/figure>\n

\u6211\u4eec\u53ef\u4ee5\u5c06\u8fd9\u4e2a\u7b97\u6cd5\u6574\u5408\u5230\u4e0a\u4f8b\u7684\u96e8\u6ef4\u7c7b\u4e2d\uff0c\u8bbex\uff0cy\u4e3a\u5706\u5f62\u8d77\u59cb\u4f4d\u7f6e\uff0c\u5e76\u5728for\u5185\u5c06\u5706\u5f62\u534a\u5f84\u5faa\u73af\u5230i\u3002
\n \/\/ \u663e\u793a\u96e8\u6ef4
\nvoid display() {
\n\/\/ Display the drop
\nnoStroke();
\nfill(c);
\nfor (int i = 2; i < r; i++ ) {
\nellipse(x,y+i*4,i*2,i*2);
\n}
\n}<\/span><\/em><\/p>\n

6.3. OK\uff0c\u73b0\u5728\u6211\u4eec\u628a\u5b83\u4eec\u5168\u90e8\u653e\u5230\u4e00\u8d77
\n\u5f00\u4e00\u4e2a\u65b0\u7684sketch\uff0c\u5f00\u56db\u4e2aTab\uff0c\u5982\u4e0b\u56fe\uff0c\u5e76\u5c06\u4e0a\u8fb9\u51e0\u4e2a\u5355\u72ec\u6d4b\u8bd5\u6210\u529f\u7684\u90e8\u5206\u586b\u5165\u3002<\/p>\n

\"4<\/a>
4 Tabs<\/figcaption><\/figure>\n

\u6211\u4eec\u65e0\u9700\u6539\u52a8\u5404\u4e2a\u5206\u90e8\u7684\u4ee3\u7801\uff0c\u6211\u4eec\u9700\u8981\u8003\u8651\u7684\u662f\u4e3b\u7a0b\u5e8f\u5185setup()<\/span><\/em>\u548cdraw()<\/span><\/em>\u7684\u5185\u5bb9\u3002\u7ee7\u7eed\u6765\u5199\u4f2a\u7801\uff1a<\/p>\n

Setup\uff1a
\n\u25ce \u521b\u5efa\u4e00\u4e2aCatcher\u5bf9\u8c61
\n\u25ce \u521b\u5efa\u4e00\u4e2a\u96e8\u6ef4\u6570\u7ec4
\n\u25ce \u8bbe\u7f6etotalDrops\u4e3a0
\n\u25ce \u521b\u5efa\u8ba1\u65f6\u5668\u5bf9\u8c61
\n\u25ce \u5f00\u542f\u8ba1\u65f6\u5668<\/p>\n

Draw\uff1a
\n\u25ce \u8bbe\u7f6eCatcher\u4f4d\u7f6e\u4e3a\u9f20\u6807\u4f4d\u7f6e
\n\u25ce \u663e\u793aCatcher
\n\u25ce \u79fb\u52a8\u6240\u6709\u53ef\u7528\u7684\u96e8\u6ef4
\n\u25ce \u663e\u793a\u6240\u6709\u53ef\u7528\u7684\u96e8\u6ef4
\n\u25ce \u5982\u679cCatcher\u548c\u96e8\u6ef4\u76f8\u4ea4
\n\u2014 \u5c06\u76f8\u4ea4\u96e8\u6ef4\u4ece\u8424\u5e55\u79fb\u9664
\n\u25ce \u5982\u679c\u8ba1\u65f6\u5668\u7ed3\u675f\uff08finish\uff09
\n\u2014 \u589e\u52a0\u96e8\u6ef4\u7684\u6570\u91cf
\n\u2014 \u91cd\u542f\u8ba1\u65f6\u5668<\/p>\n

\u5168\u5c40\u53d8\u91cf\uff1a
\n Catcher catcher; \/\/ \u4e00\u4e2a\u5bb9\u5668\u5bf9\u8c61
\nTimer timer; \/\/ \u4e00\u4e2a\u8ba1\u65f6\u5668\u5bf9\u8c61
\nDrop[] drops; \/\/ \u4e00\u4e2a\u96e8\u6ef4\u5bf9\u8c61\u6570\u7ec4
\nint totalDrops = 0; \/\/ \u96e8\u6ef4\u603b\u6570<\/span><\/em><\/p>\n

\u5728setup()<\/span><\/em>\u4e2d\uff0c\u53d8\u91cf\u88ab\u521d\u59cb\u5316\u3002\u6ce8\u610f\uff0c\u6211\u4eec\u53ef\u4ee5\u8df3\u8fc7\u521d\u59cb\u5316\u6570\u7ec4\u4e2d\u96e8\u6ef4\u8fd9\u4e00\u6b65\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e00\u6b21\u53ea\u88ab\u521b\u5efa\u4e00\u6ef4\u3002\u6211\u4eec\u540c\u6837\u9700\u8981\u547c\u53eb\u8ba1\u65f6\u5668\u7684start()<\/span><\/em>\u51fd\u6570\u3002
\n void setup() {
\nsize(400,400);
\ncatcher = new Catcher(32); \/\/ \u4ee5\u534a\u5f8432\u521b\u5efa\u5bb9\u5668
\ndrops = new Drop[1000]; \/\/ \u5728\u6570\u7ec4\u4e2d\u521b\u5efa1000\u70b9
\ntimer = new Timer(2000); \/\/ \u521b\u5efa\u4e00\u4e2a\u6bcf\u4e24\u79d2\u8fd0\u8f6c\u4e00\u6b21\u7684\u8ba1\u65f6\u5668<\/span><\/em><\/p>\n

timer.start(); \/\/ \u5f00\u542f\u8ba1\u65f6\u5668
\n}<\/span><\/em><\/p>\n

\u5728draw()<\/span><\/em>\u5185\uff0c\u5bf9\u8c61\u4eec\u547c\u53eb\u5b83\u4eec\u5404\u81ea\u7684\u65b9\u6cd5\u3002\u518d\u6b21\uff0c\u6211\u4eec\u53ea\u662f\u5c06\u5148\u524d\u5404\u90e8\u5206\u7684\u4ee3\u7801\u6309\u987a\u5e8f\u7c98\u5165\u3002
\n Catcher catcher; \/\/ \u4e00\u4e2a\u5bb9\u5668\u5bf9\u8c61
\nTimer timer; \/\/ \u4e00\u4e2a\u8ba1\u65f6\u5668\u5bf9\u8c61
\nDrop[] drops; \/\/ \u4e00\u4e2a\u96e8\u6ef4\u5bf9\u8c61\u6570\u7ec4
\nint totalDrops = 0; \/\/ \u96e8\u6ef4\u603b\u6570<\/span><\/em><\/p>\n

void setup() {
\nsize(400,400);
\ncatcher = new Catcher(32); \/\/ \u4ee5\u534a\u5f8432\u521b\u5efa\u5bb9\u5668
\ndrops = new Drop[1000]; \/\/ \u5728\u6570\u7ec4\u4e2d\u521b\u5efa1000\u70b9
\ntimer = new Timer(2000); \/\/ \u521b\u5efa\u4e00\u4e2a\u6bcf\u4e24\u79d2\u8fd0\u8f6c\u4e00\u6b21\u7684\u8ba1\u65f6\u5668<\/span><\/em><\/p>\n

timer.start(); \/\/ \u5f00\u542f\u8ba1\u65f6\u5668
\n}<\/span><\/em><\/p>\n

void draw() {
\nbackground(255);<\/span><\/em><\/p>\n

\/\/ \u6765\u81ea6.2.1. \u5bb9\u5668
\ncatcher.setLocation(mouseX,mouseY); \/\/ \u8bbe\u7f6e\u5bb9\u5668\u4f4d\u7f6e
\ncatcher.display(); \/\/ \u663e\u793a\u5bb9\u5668<\/span><\/em><\/p>\n

\/\/ \u6765\u81ea6.2.3. \u8ba1\u65f6\u5668
\n\/\/ \u68c0\u67e5\u8ba1\u65f6\u5668
\nif (timer.isFinished()) {
\nprintln( ” 2 seconds have passed! ” );
\ntimer.start();
\n}<\/span><\/em><\/p>\n

\/\/ \u6765\u81ea6.2.4. \u96e8\u6ef4
\n\/\/ \u521d\u59cb\u5316\u4e00\u6ef4\u96e8
\ndrops[totalDrops] = new Drop();
\n\/\/ \u9012\u589etotalDrops
\ntotalDrops ++ ;<\/span><\/em><\/p>\n

\/\/ \u5982\u679c\u5230\u8fbe\u6570\u7ec4\u6700\u672b
\nif (totalDrops >= drops.length) {
\ntotalDrops = 0; \/\/ \u91cd\u542f
\n}<\/span><\/em><\/p>\n

\/\/ \u79fb\u52a8\u5e76\u663e\u793a\u6240\u6709\u96e8\u6ef4
\nfor (int i = 0; i < totalDrops; i ++ ) {
\ndrops[i].move();
\ndrops[i].display();
\n}
\n}<\/span><\/em><\/p>\n

\u63a5\u4e0b\u6765\u5c31\u662f\u6709\u673a\u7684\u6574\u5408\u8fd9\u51e0\u4e2a\u90e8\u5206\u3002 \u6bd4\u5982\u8bf4\uff0c\u6211\u4eec\u5728\u6bcf2\u79d2\u4e4b\u540e\u5e94\u4ec5\u4ea7\u751f\u4e00\u6ef4\u65b0\u7684\u96e8\u6ef4\uff08\u9075\u7167\u8ba1\u65f6\u5668\u7684isFinished( )<\/span><\/em>\u51fd\u6570\uff09
\n \/\/ \u68c0\u67e5\u8ba1\u65f6\u5668
\nif (timer.isFinished()) {
\n\/\/ \u5904\u7406\u96e8\u6ef4
\n\/\/ \u521d\u59cb\u5316\u4e00\u6ef4\u96e8
\ndrops[totalDrops] = new Drop();
\n\/\/ \u9012\u589etotalDrops
\ntotalDrops++ ;
\n\/\/ \u5982\u679c\u5230\u8fbe\u6570\u7ec4\u6700\u672b
\nif (totalDrops > = drops.length) {
\ntotalDrops = 0; \/\/ \u91cd\u542f
\n}
\ntimer.start();
\n\/\/ \u5bf9\u8c61\u534f\u540c\u5de5\u4f5c\uff01\u8fd9\u91cc\uff0c\u5982\u679c\u8ba1\u65f6\u5668\u7ed3\u675f\uff0c\u4e00\u4e2a\u96e8\u6ef4\u5bf9\u8c61\u5c06\u88ab\u6dfb\u52a0\uff08\u901a\u8fc7\u9012\u589e”totalDrops”\uff09
\n}<\/span><\/em><\/p>\n

\u6211\u4eec\u540c\u65f6\u9700\u8981\u627e\u5230\u4ec0\u4e48\u65f6\u5019\u5bb9\u5668\u4e0e\u96e8\u6ef4\u76f8\u4ea4\u3002\u5728\u4e4b\u524d\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u8fd9\u6837\u6d4b\u8bd5\u76f8\u4ea4\uff1a
\n boolean intersecting = ball1.intersect(ball2);
\nif (intersecting) {
\nprintln( “The circles are intersecting!”);
\n}<\/span><\/em><\/p>\n

\u6211\u4eec\u5728\u8fd9\u80fd\u505a\u540c\u6837\u7684\u5c1d\u8bd5\uff0c\u547c\u53ebCatcher\u7c7b\u5185\u7684intersec()\u51fd\u6570\u5e76\u5c06\u4e4b\u4f20\u9012\u7ed9\u7cfb\u7edf\u5185\u7684\u6bcf\u4e00\u6ef4\u96e8\uff0c\u8ba9\u5b83\u4eec\u6d88\u5931\u3002\u8fd9\u6bb5\u4ee3\u7801\u5047\u8bbecaught()\u51fd\u6570\u53ef\u4ee5\u5b8c\u6210\u8fd9\u9879\u5de5\u4f5c\uff1a
\n \/\/ \u79fb\u52a8\u5e76\u663e\u793a\u6240\u6709\u96e8\u6ef4
\nfor (int i = 0; i < totalDrops; i++ ){
\ndrops[i].move();
\ndrops[i].display();
\n\/\/ \u5bf9\u8c61\u534f\u540c\u5de5\u4f5c\uff01\u8fd9\u91cc\uff0cCatcher\u5bf9\u8c61\u68c0\u6d4b\u81ea\u5df1\u662f\u5426\u4e0e\u96e8\u6ef4\u6570\u7ec4\u5185\u7684\u4efb\u4f55\u96e8\u6ef4\u5bf9\u8c61\u76f8\u4ea4
\nif (catcher.intersect(drops[i])) {
\ndrops[i].caught();
\n}
\n} <\/span><\/em><\/p>\n

\u6211\u4eec\u7684\u5bb9\u5668\u7c7b\u6700\u521d\u5e76\u4e0d\u5305\u542bintersect()<\/span><\/em>\u51fd\u6570\uff0c\u96e8\u6ef4\u4e5f\u4e0d\u5305\u542bcaught()<\/span><\/em>\u3002\u56e0\u6b64\u8fd9\u4e9b\u4fbf\u662f\u6211\u4eec\u9700\u8981\u5728\u76f8\u4ea4\u7a0b\u5e8f\u5185\u65b0\u589e\u7684\u4ee3\u7801\u90e8\u5206\u3002<\/p>\n

intersect()<\/span><\/em>\u7684\u52a0\u5165\u5e76\u4e0d\u56f0\u96be\uff0c\u56e0\u4e3a\u6211\u4eec\u4e4b\u524d\u5c31\u5df2\u7ecf\u505a\u51fa\u4e86\uff0c\u6240\u4ee5\u6211\u4eec\u53ea\u9700\u5c06\u4e4b\u524d\u7684\u4ee3\u7801\u62f7\u5165Catcher\u7c7b\u91cc\uff08\u5c06\u5f15\u6570\u7531Ball\u5bf9\u8c61\u6362\u4e3aDrop\u5bf9\u8c61\uff09
\n \/\/ \u4e00\u4e2a\u57fa\u4e8e\u662f\u5426\u76f8\u4ea4\u8fd4\u56de\u771f\u6216\u5047\u7684\u51fd\u6570
\nboolean intersect(Drop d) {
\n\/\/ \u8ba1\u7b97\u8ddd\u79bb
\nfloat distance = dist(x,y,d.x,d.y);
\n\/\/ \u6bd4\u8f83\u8ddd\u79bb\u4e0e\u4e24\u534a\u5f84\u4e4b\u548c
\n\/\/ \u9664\u4e86\u547c\u53eb\u51fd\u6570\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u7528\u70b9\u8bed\u6cd5\u5c06\u53d8\u91cf\u63d2\u5165\u4e00\u4e2a\u5bf9\u8c61
\nif (distance < r + d.r) {
\nreturn true;
\n} else {
\nreturn false;
\n}
\n} <\/span><\/em><\/p>\n

\u5f53\u4e00\u6ef4\u96e8\u88ab\u6355\u6349\u5230\uff0c\u6211\u4eec\u8981\u8bbe\u7f6e\u5176\u4f4d\u7f6e\u8fdc\u79bb\u8424\u5e55\u5e76\u901a\u8fc7\u5c06\u5176\u901f\u5ea6\u8bbe\u4e3a0\u4ee5\u505c\u6b62\u5176\u8fd0\u52a8\u3002\u5c3d\u7ba1\u4e4b\u524d\u6211\u4eec\u5e76\u6ca1\u6709\u4e8b\u5148\u5728\u76f8\u4ea4\u73af\u8282\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\uff0c\u4f46\u73b0\u5728\u6765\u505a\u4e5f\u5f88\u7b80\u5355\u3002
\n \/\/ \u5982\u679c\u4e00\u6ef4\u96e8\u88ab\u6355\u6349\u5230
\nvoid caught() {
\nspeed = 0; \/\/ \u901a\u8fc7\u5c06\u5176\u901f\u5ea6\u8bbe\u4e3a0\u4ee5\u505c\u6b62\u5176\u8fd0\u52a8
\ny = \u20131000; \/\/ \u8bbe\u7f6e\u5176\u4f4d\u7f6e\u8fdc\u79bb\u8424\u5e55
\n}<\/span><\/em><\/p>\n

\u597d\u4e86\uff0c\uff0c\uff0c\u5168\u90e8\u7684\u4ee3\u7801\u89c1\u8fd9\u91cc<\/a>\uff08\u771f\u9e21\u5df4\u957f- -b\uff09<\/p>\n

7. \u672c\u7ae0\u7684\u8981\u70b9\u5e76\u975e\u6559\u4f60\u5982\u4f55\u5236\u4f5c\u4e00\u4e2a\u6349\u96e8\u6e38\u620f\uff0c\u800c\u662f\u4e00\u79cd\u89e3\u51b3\u95ee\u9898\u7684\u65b9\u6cd5\u2014\u2014\u6709\u4e86\u4e00\u4e2a\u4e3b\u610f\uff0c\u5c06\u5b83\u6253\u6563\u4e3a\u90e8\u5206\uff0c\u4e3a\u90a3\u4e9b\u90e8\u5206\u63cf\u7ed8\u4f2a\u7801\uff0c\u5e76\u6bcf\u6b21\u5b9e\u73b0\u5b83\u4eec\u7684\u4e00\u5c0f\u90e8\u5206\u3002<\/p>\n

\u8bb0\u4f4f\u719f\u6089\u8fd9\u6837\u7684\u6d41\u7a0b\u9700\u8981\u65f6\u95f4\u548c\u7ec3\u4e60\uff0c\u8fd9\u5f88\u91cd\u8981\u3002\u6bcf\u4e2a\u4eba\u5728\u521d\u5b66\u7f16\u7a0b\u7684\u65f6\u5019\u90fd\u4f1a\u5728\u5176\u95f4\u6323\u624e\u3002<\/p>\n

\u5728\u6211\u4eec\u7ee7\u7eed\u63a2\u7d22\u8fd9\u672c\u4e66\u5269\u4e0b\u90e8\u5206\u4e4b\u524d\uff0c\u8ba9\u6211\u4eec\u82b1\u70b9\u65f6\u95f4\u60f3\u4e00\u4e0b\u6211\u4eec\u5b66\u5230\u7684\u3002\u5728\u4e4b\u524d\u7684\u90e8\u5206\uff0c\u6211\u4eec\u6db5\u76d6\u4e86\u7f16\u7a0b\u7684\u6240\u6709\u57fa\u7840\u90e8\u5206\uff1a
\n\u25ce \u6570\u636e\u2014\u2014\u4ee5\u53d8\u91cf\u548c\u6570\u7ec4\u7684\u5f62\u5f0f
\n\u25ce \u63a7\u5236\u6d41\u2014\u2014\u4ee5\u6761\u4ef6\u5f0f\u548c\u5faa\u73af\u7684\u5f62\u5f0f
\n\u25ce \u7ec4\u7ec7\u2014\u2014\u4ee5\u5bf9\u8c61\u548c\u51fd\u6570\u7684\u5f62\u5f0f<\/p>\n

\u8fd9\u4e9b\u6982\u5ff5\u4e0d\u4ec5\u9002\u7528\u4e8eprocessing\uff0c\u540c\u65f6\u4e5f\u9002\u7528\u4e8e\u6240\u6709\u7f16\u7a0b\u8bed\u8a00\u548c\u73af\u5883\uff0c\u6bd4\u5982C\uff0b\uff0b , Actionscript\u548c\u670d\u52a1\u5668\u7aef\u7f16\u7a0b\u8bed\u8a00\u4f8b\u5982PHP\u3002\u8bed\u6cd5\u53ef\u80fd\u6539\u53d8\uff0c\u4f46\u6982\u5ff5\u4e0d\u4f1a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

6.2.4. \u96e8\u6ef4 \u53ef\u4ee5\u5206\u4e3a\u5982\u4e0b\u6b65\u9aa4\uff1a 1\uff09\u4e00\u4e2a\u8fd0\u52a8\u7684\u96e8\u6ef4 2\uff09\u4e00\u4e2a\u96e8\u6ef4\u5bf9\u8c61\u7684\u6570\u7ec4 3\uff09\u968f\u673a\u6570\u91cf\u7684\u96e8\u6ef4\uff08\u6bcf\u6b21\u663e\u793a\u4e00\u6ef4\uff09 4\uff09\u4f18\u5316\u96e8\u6ef4\u5916\u5f62 1\uff09\u6bd4\u8f83\u7b80\u5355\uff08\u5148\u7528\u4e2a\u7b80\u5355\u7684\u5706\u5f62\u4ee3\u66ff\uff09 float x,y; \/\/ \u96e8\u6ef4\u4f4d\u7f6e\u53d8\u91cf void setup() { size(400,400); background(0); x = width\/2; y = 0; } void draw() { background(255); \/\/ \u663e\u793a\u96e8\u6ef4 fill(50,100,150); noStroke(); ellipse(x,y,16,16); \/\/ \u79fb\u52a8\u96e8\u6ef4 y++ ; } \u518d\u6b21\uff0c\u6211\u4eec\u9700\u8981\u901a\u8fc7\u5c06\u96e8\u6ef4\u505a\u6210\u7c7b\uff0c\u800c\u5f97\u5230\u4e00\u4e2a\u5173\u4e8e\u96e8\u6ef4\u7c7b\u7684\u6570\u7ec4\uff0c\u4ee5\u5b9e\u73b0\u5f88\u591a\u96e8\u6ef4\u3002\u6211\u4eec\u53ef\u4ee5\u4e3a\u5176\u589e\u52a0\u8bf8\u5982\u901f\u5ea6\u6216\u5927\u5c0f\u7b49\u53d8\u91cf\uff0c\u540c\u65f6\u8fd8\u53ef\u4ee5\u52a0\u5165\u4e00\u4e2a\u6d4b\u8bd5\u96e8\u6ef4\u662f\u5426\u6ef4\u5230\u5730\u9762\u7684\u51fd\u6570\u3002 class Drop { float x,y; \/\/ \u96e8\u6ef4\u4f4d\u7f6e\u53d8\u91cf float speed; \/\/ \u96e8\u6ef4\u901f\u5ea6 color c; \/\/ \u96e8\u6ef4\u989c\u8272 float […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[57],"tags":[58],"class_list":["post-590","post","type-post","status-publish","format-standard","hentry","category-processing","tag-processing"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/590","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=590"}],"version-history":[{"count":1,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/590\/revisions"}],"predecessor-version":[{"id":594,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=\/wp\/v2\/posts\/590\/revisions\/594"}],"wp:attachment":[{"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=590"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/learn.travelchinawith.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}