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Listing 11 . Source code for the sprite class named Sprite01.
/*Sprite01.java Copyright 2013, R.G.BaldwinAn object of this class can be manipulated as a sprite in a Slick2D program.Tested using JDK 1.7 under WinXP *********************************************************/import org.newdawn.slick.AppGameContainer; import org.newdawn.slick.BasicGame;import org.newdawn.slick.GameContainer; import org.newdawn.slick.Graphics;import org.newdawn.slick.Image; import org.newdawn.slick.SlickException;import org.newdawn.slick.Color; public class Sprite01{Image image = null;//The sprite wears this image float X = 0f;//X-Position of the spritefloat Y = 0f;//Y-Position of the sprite float width = 0f;//Width of the spritefloat height = 0f;//Height of the sprite float xStep = 1f;//Incremental step size in pixels - Xfloat yStep = 1f;//Incremental step size in pixels - Y float scale = 1f;//Scale factor for draw methodColor colorFilter = null;//Color filter for draw methodfloat xDirection = 1.0f;//Move to right for positive float yDirection = 1.0f;//Move down for positiveint life = 1;//Used to control life or death of spriteboolean exposed = false;//Used in the contagion program//Constructorpublic Sprite01(Image image,//Sprite wears this image float X,//Initial positionfloat Y,//Initial position float xDirection,//Initial directionfloat yDirection,//Initial direction float xStep,//Initial step sizefloat yStep,//Initial step size float scale,//Scale factor for drawingColor colorFilter) throws SlickException {//Save incoming parameter values this.image = image;this.X = X; this.Y = Y;this.xDirection = xDirection; this.yDirection = yDirection;this.xStep = xStep; this.yStep = yStep;this.scale = scale; this.colorFilter = colorFilter;//Compute and save width and height of imagewidth = image.getWidth(); height = image.getHeight();}//end constructor //----------------------------------------------------////The following accessor methods make many of the // important attributes accessible to the using// program. //----------------------------------------------------//public Image getImage(){return image; }//end getSprite//----------------------------------------------------//public void setImage(Image image) throws SlickException{ this.image = image;width = image.getWidth(); height = image.getHeight();}//end setImage //----------------------------------------------------//public float getWidth(){return width; }//end getWidth//----------------------------------------------------// public float getHeight(){return height; }//end getWidth//----------------------------------------------------//public float getX(){ return X;}//end getX //----------------------------------------------------//public void setX(float X){this.X = X; }//end setX//----------------------------------------------------// public float getY(){return Y; }//end getY//----------------------------------------------------// public void setY(float Y){this.Y = Y; }//end setY//----------------------------------------------------//public float getXDirection(){ return xDirection;}// end getXDirection //----------------------------------------------------//public void setXDirection(float xDirection){this.xDirection = xDirection; }//end setXDirection//----------------------------------------------------//public float getYDirection(){ return yDirection;}//end getYDirection //----------------------------------------------------//public void setYDirection(float yDirection){this.yDirection = yDirection; }//setYDirection//----------------------------------------------------//public float getXStep(){ return xStep;}//end getXStep //----------------------------------------------------//public void setXStep(float xStep){this.xStep = xStep; }//end setXStep//----------------------------------------------------//public float getYStep(){ return yStep;}//end getYStep //----------------------------------------------------//public void setYStep(float yStep){ this.yStep = yStep;}//end setYStep //----------------------------------------------------//public float getScale(){return scale; }//end getScale//----------------------------------------------------// public void setScale(float scale){this.scale = scale; }//end setScale//----------------------------------------------------//public Color getColorFilter(){ return colorFilter;}//end getColorFilter //----------------------------------------------------//public void setColorFilter(float red,float green,float blue){ colorFilter = new Color(red,green,blue);}//end setColorFilter //----------------------------------------------------//public int getLife(){return life; }//end getLife//----------------------------------------------------//public void setLife(int life){ this.life = life;}//end setLife //----------------------------------------------------//public boolean getExposed(){return exposed; }//end getExposed//----------------------------------------------------//public void setExposed(boolean exposed){ this.exposed = exposed;}//end setExposed //----------------------------------------------------////This method causes the sprite to be drawn each time// it is called. public void draw(){image.draw(X,Y,scale,colorFilter); }//end draw//----------------------------------------------------////This method detects collisions between this // rectangular sprite object and another rectangular// sprite object by testing four cases where a // collision could not possibly occur and assuming that// a collision has occurred if none of those cases // are true.public boolean isCollision(Sprite01 other){ //Create variable with meaningful names make the// algorithm easier to understand. Can be eliminated // to make the algorithm more efficient.float thisTop = Y; float thisBottom = thisTop + height*scale;float thisLeft = X; float thisRight = thisLeft + width*scale;float otherTop = other.getY();float otherBottom = otherTop + other.getHeight()*other.getScale(); float otherLeft = other.getX();float otherRight = otherLeft + other.getWidth()*other.getScale(); if (thisBottom<otherTop) return(false); if (thisTop>otherBottom) return(false);if (thisRight<otherLeft) return(false); if (thisLeft>otherRight) return(false);return(true); }//end isCollision//----------------------------------------------------//public void move(){ X += xDirection*xStep;Y += yDirection*yStep; }//end move//----------------------------------------------------//public void edgeBounce(float winWidth,float winHeight){ //Test for a collision with one of the edges and// cause to sprite to bounce off the edge if a // collision has occurred.if(X + width*scale>= winWidth){ //A collision has occurred.xDirection = -1.0f;//reverse direction //Set the position to the right edge less the// width of the sprite. X = winWidth - width*scale;}//end if//Continue testing for collisions with the edges // and take appropriate action.if(X<= 0){ xDirection = 1.0f;X = 0; }//end ifif(Y + height*scale>= winHeight){ yDirection = -1.0f;Y = winHeight - height*scale; }//end ifif(Y<= 0){ yDirection = 1.0f;Y = 0; }//end if}//end edgeBounce //----------------------------------------------------//}//end class Sprite01

-end-

Questions & Answers

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
Abhi
how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
hmm
Abhi
is it a question of log
Abhi
🤔.
Abhi
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Anatomy of a game engine. OpenStax CNX. Feb 07, 2013 Download for free at https://legacy.cnx.org/content/col11489/1.13
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