Java Applet game collision code

 

 

 

Import Java. applet. *; <br/> Import Java. util. *; <br/> Import Java. AWT. *; <br/> Import Java. AWT. event. *; <br/> public class T1 extends applet implements runnable, mouselistener, mousemotionlistener, actionlistener <br/>{< br/> thread tt; <br/> image offscreen, tupian1, tupian2, tu2, bj1; <br/> graphics drawoffscreen; <br/> int appletwidth, appletheight, tuwidth, tuheight, tu2width, tu2height; <br/> pigsprite ps1, pS2; <br /> Sstest1 beijing1; <br/> button b1 = new button ("Start again"); <br/> mediatracker MT; // This is important without it, incorrect image length and width <br/> Public void Init () <br/>{< br/> addmouselistener (this); <br/> addmousemotionlistener (this ); <br/> resize (640,480); <br/> appletwidth = getsize (). width; <br/> appletheight = getsize (). height; <br/> Mt = new mediatracker (this); <br/> tupian1 = getimage (getdocumentbase (), "a1.gif"); <br/> tupian2 = getimag E (getdocumentbase (), "a2.gif"); <br/> bj1 = getimage (getdocumentbase (), "bj1.gif"); <br/> Mt. addimage (tupian1, 0); <br/> Mt. addimage (tupian2, 0); <br/> try {<br/> Mt. waitforall (); <br/>}catch (exception e) {}< br/> ps1 = new pigsprite (tupian1, this, 5 ); <br/> PS2 = new pigsprite (tupian2, this, 2); <br/> beijing1 = new sstest1 (bj1, this ); <br/> tuwidth = tupian1.getwidth (this); <br/> system. out. println (tuwidth); <br/> T Uheight = tupian1.getheight (this); <br/> system. out. println (tuheight); <br/> tu2width = tupian2.getwidth (this); <br/> system. out. println (tu2width); <br/> tu2height = tupian2.getheight (this); <br/> system. out. println (tu2height); <br/> ps1.setlocation (100,100); <br/> ps2.setlocation (); <br/> offscreen = createimage (appletwidth, appletheight ); <br/> drawoffscreen = offscreen. getgraphics (); <br/>}< br/> pub LIC void start () {<br/> TT = new thread (this); <br/> TT. start (); <br/>}< br/> Public void stop () {TT = NULL ;}< br/> Public void run () <br/>{< br/> while (TT! = NULL) <br/>{< br/> repaint (); <br/> try <br/>{< br/> thread. sleep (33); <br/> // thread. sleep (1000); <br/>}catch (exception e) {}< br/> ps1.updatestate (); <br/> ps2.updatestate (); <br/> // int <br/> If (ps1.hit (ps2.getx (), ps2.gety (), tuwidth, tuheight, tu2width, tu2height )) <br/>{< br/> // ps2.setvisible (false); <br/>}< br/> If (ps2.hit (ps1.getx (), ps1.gety (), tuwidth, tuheight, tu2width, tu2height) <br/>{< br/> // ps1.setvisible (false ); <br/>}< br/> Public void paint (Graphics g) <br/>{< br/> drawoffscreen. clearrect (, appletwidth, appletheight); <br/> beijing1.paintsprite (drawoffscreen); <br/> ps1.paintsprite (drawoffscreen); <br/> ps2.paintsprite (drawoffscreen ); <br/> G. drawimage (OFFSCREEN, 0, 0, this); <br/>}< br/> Public void Update (Graphics g) {paint (g );} <br/> Public void mouseexited (mouseevent e) {}< br/> Public void mouseclicked (mouseevent e) {}< br/> Public void mouseentered (mouseevent E) {}< br/> Public void mousepressed (mouseevent e) {}< br/> Public void mousereleased (mouseevent e) {}< br/> Public void mousemoved (mouseevent E) {}< br/> Public void mousedragged (mouseevent e) {}< br/> Public void actionreceivmed (actionevent E) {}< br/>}< br/> abstract class supersprite <br/>{< br/> int X, Y, width, height; <br/> Boolean visible, active; <br/> Abstract Public void paintsprite (Graphics g); <br/> Abstract Public void updatestate (); <br/> Public int getx () {return X ;} <br/> Public int Gety () {return y ;}< br/> Public void setlocation (int x, int y) <br/>{< br/> This. X = x; <br/> This. y = y; <br/>}< br/> Public int getwidth () <br/>{< br/> return width; <br/>}< br/> Public int getheight () <br/>{< br/> return height; <br/>}< br/> Public void setsize (INT width, int height) <br/>{< br/> This. width = width; <br/> This. height = height; <br/>}< br/> Public Boolean canvisible () <br/>{< br/> return visible; <br/>}< br/> Public void setvisible (Boolean v) <br/>{< br/> visible = V; <br/>}< br/> Public Boolean canmove () <br/>{< br/> return active; <br/>}< br/> Public void setmove (Boolean m) <br/>{< br/> active = m; <br/>}< br/> class pigsprite extends supersprite <br/>{< br/> int VX, Vy; <br/> image img1; <br/> applet game; <br/> random R; <br/> Boolean showpig; <br/> Public pigsprite (image img1, Applet game, int speed) <br/>{< br/> This. img1 = img1; <br/> This. game = game; <br/> This. VX = speed; <br/> This. vy = speed; <br/> showpig = false; <br/> setvisible (true); <br/> setmove (true ); <br/>}< br/> Public void updatestate () <br/>{< br/> If (active) <br/>{< br/> X + = VX; <br/> Y + = Vy; <br/>}< br/> If (x> 640 | Y> 480) | (x <0 | Y <0 )) <br/>{< br/> showpig = false; <br/> vx =-VX; Vy =-Vy; <br/>} else {<br/> showpig = true; <br/>}< br/> Public void paintsprite (Graphics g) <br/>{< br/> If (visible) <br/>{< br/> If (showpig) <br/> G. drawimage (img1, X, Y, game); <br/>}< br/> Public Boolean hit (int x, int y, int p_width, int p_height, int h_width, int h_height) <br/>{< br/> If (<br/> (this. X + p_width> = x) & <br/> // (this. X + 40> = x) & <br/> (this. Y + p_height> = y) & <br/> // (this. Y + 40> = y) & <br/> (x + h_width> = This. x) & <br/> // (x + 40> = This. x) & <br/> (Y + h_height> = This. y) & <br/> // (Y + 40> = This. y) & <br/> showpig) <br/>{< br/> showpig = false; <br/> // setvisible (false ); <br/> // setmove (false); <br/> return true; <br/>}else <br/> return false; <br/>}< br/>}