/**
An upgraded version of the Sprite class written for MIDP1.0 * <p>title: Wizard class </p> * * <p>description: </p> * * <p>copyright:copyright (c) 2004</p> * * <p>company: </p> * * @ Author not attributable * @version 1.0 */import javax.microedition.lcdui.*;p ublic class Mysprite { Final public static int bycollidexy = 0; final public static int bycollidearea = 1; final public static int Bycollideradius = 2; public Image image; public int positionx; public int positiony; public int n umframes; public int currentframe; public int[][] framesinfo;//This version the dimensions of each frame are stored in an array, not like 1.0 medium public Boolean visible=true; public int dx; public int dy; public int collidex=0;// When two roles cross transverse distances are considered to have collided public int collidey=0;//when two roles cross longitudinal distances over Collidey think already collide public int Collidearea Collidex =0;//when two characters invade each other's area more than Collidearea think already collide (note: Here's the invasion area!= Cross area) public int collideradius=0//Collision RADIUS public int state=0;
Public Mysprite (Image image,int numframes) throws Exception { this.image = image; & nbsp This.numframes = numframes; //set frameinfo framesinfo=new int[numFrames][4]; for (int i=0;i<numframes;i++) { Framesinfo[i] [0]=i*image.getwidth ()/numframes;//the upper-left corner x-coordinate framesinfo[i][1]=0;//-upper-left y-coordinate framesinfo[i][2]=image.getwidth ()/numframes;//This frame width framesinfo[i ][3]=image.getheight ()//This frame height } /////////////// this.currentframe=0; } public void Draw (Canvas thecanvas,graphics g) { if (visible) { g.setclip (Positionx, Positiony, framesinfo[currentframe][2), FRAMESINFO[CURRENTFRAME][3]); g.drawimage (image, Positionx-Framesinfo[currentframe][0], positiony-framesinfo[currentframe][1],0); g.setClip (0 , 0, Thecanvas.getwidth (), Thecanvas.getheight ()); } } public void Step () { & nbsp; if (visible) { This.positionx + = dx; This.positiony + = dy; } } public boolean collideswith (Mysprite sprite) { return This.collideswith (sprite,bycollidearea); } public boolean collideswith ( Mysprite Sprite, int checktype) { if (! Visible | |! sprite.visible) {&NBSP;&NB sp; return false; } if (checktype==bycollidearea) { //When two characters invade each other's area more than Collidearea think already collide (note: Here's the invasion area!= cross area) int inx=sprite.positionx+sprite.framesinfo[sprite.currentframe][2]-this.positionx >this.positionx+this.framesinfo[ currentframe][2]-sprite.positionx ? this.positionX+ this.framesinfo[currentframe][2]-sprite.positionx : sprite.positionx+sprite.framesinfo[sprite.currentframe][2]-this.positionx ; int Iny=sprite.positiony+sprite.framesinfo[sprite.currentframe ][3]-this.positiony >this.positiony+this.framesinfo[ currentframe][3]-sprite.positiony ? this.positionY+ this.framesinfo[currentframe][3]-sprite.positiony : sprite.positiony+sprite.framesinfo[sprite.currentframe][3]-this.positiony &NBSP;&NBSP;&NBSP;&Nbsp; if (inx>0 && iny>0 && inx*iny>this.collidearea+sprite.collidearea) { return true; } else { return false; } } Else if (checktype==bycollidexy) { if (sprite.positionx+sprite.framesinfo[sprite.currentframe][2]- sprite.collidex>this.positionx+this.collidex & & this.positionx+this.framesinfo[currentframe][2]-this.collidex>sprite.positionx+sprite.collidex && sprite.positiony+sprite.framesinfo[ sprite.currentframe][3]-sprite.collidey>this.positiony+this.collidey &Amp;& This.positiony+this.framesinfo[currentframe][3]-this.collidey>sprite.positiony+sprite.collidey) { return true; } else { return false; } } else//if ( Checktype==bycollideradius) { int Inx=math.abs (this.positionx+ this.framesinfo[currentframe][2]/2-sprite.positionx-(sprite.framesinfo[sprite.currentframe][2]+1)/2); int Iny=math.abs (this.positiony+this.framesinfo[currentframe][3]/2-sprite.positiony-( SPRITE.FRAMESINFO[SPRITE.CURRENTFRAME][3]+1)/2); if (inx*inx+iny*iny< ( Collideradius+sprite.collideradius) * (Sprite.collideradius+sprite.collideradius) {&NBSP;&NBSP;&NBsp; return true; } else { return false; } } } Public boolean collideswith (image image, int x, int y) { return This.collideswith (image, X, Y,bycollidearea); }
public boolean collideswith (image image, int x, int y, int checktype) {if (! Visible) {return false; }
if (checktype==bycollidearea) { // When two characters invade each other area more than Collidearea think already collide (note: Here's the invasion area!= cross area) int inx=x+image.getwidth ()- this.positionx >this.positionx+this.framesinfo[ currentframe][2]-x ? this.positionx+this.framesinfo[ currentframe][2]-x : X+image.getwidth ()-this.positionX ; int Iny=y+image.getheight ( )-this.positiony >this.positiony+this.framesinfo[ currentframe][3]-y ? this.positiony+this.framesinfo[ currentframe][3]-y : Y+image.getheight ()-this.positionY ; if (inx>0 && iny>0 && Inx*iny>this.collidearea) { return true; } else { return false; } } else if (checktype== bycollidexy) { if (x+image.getwidth () >this.positionX && this.positionx+this.framesinfo[currentframe][2]- this.collidex>x && y+image.getheight () > this.positiony && this.positiony+this.framesinfo[ Currentframe][3]-this.collidey>y) {   Return true; } else { return false; } } Else//if (checktype==bycollideradius) { int inx= Math.Abs (this.positionx+this.framesinfo[currentframe][2]/2-x-(Image.getwidth () +1)/2); int Iny=math.abs (this.positiony+this.framesinfo[currentframe][3]/2-y-(Image.getheight () +1)/2); if (Inx*inx+iny*iny<collideradius*collideradius) { return true; } else { return false; } } }}
