Rabu, 23 Juli 2014

listing program game


//////////////////////////////


//     Global
Variables     //


//////////////////////////////


private Game
game = new
 Game();


private Question
question = new
 Question();


private Answer[]
answers = new
 Answer[3];


  


// Coordinates for where to draw
the buttons


private static final int[] buttonXCoords = {40, 240, 440};


  


// Limits for generating the
random numbers in the questions


private static final int[] limits = {1, 301};


  


// To store the coordinates of the
mouse when clicked


private float[]
mouseCoordsOnClick = new
 float[2];


  


// Flag for whether we need a new
question for the user


private boolean newQuestion = true;


  


// Flag for whether the game has
been started


private boolean gameStarted = false;


  


// Flag for winning or losing the
game


private int gameWon = 0;


  


// Create new object for the class
Cars


private Cars
cars = new
 Cars();


  


/////////////////////////////


//     
Setup method       //


/////////////////////////////


void setup(){


  frameRate(30);


  size(600, 600);


  smooth();


  


  // Initialise the
Answer objects


  for(int i=0; i<3; i++){


    answers[i]
= new
 Answer();


      


    // Set
each answer box's x-coordinate


    answers[i].setXCoord(buttonXCoords[i]);


  }


}


  


//////////////////////////////


//     Main
draw method     //


//////////////////////////////


void draw(){


    // Draw
background


    fill(255);


    rect(0,
0, width, 250);


      


    // If the
button has been pressed to start the game


    if(gameStarted
== true){


      //
Game lost


      if(gameWon==1){


        fill(0);


        textSize(35);


        text("YOU
LOST!", 215, 200);


      }


      else if(gameWon==2){


        fill(0);


        textSize(35);


        text("YOU
WON!", 215, 200);


      }


      if(gameWon==0){


        //
If a new question is needed (user answered)


        if(newQuestion
== true){


          //
No new questions until the user has answered


          newQuestion
= false;


        


          //
Draw background


          fill(255);


          rect(0,
250, width, 350);


      


          //
New question!


          game.newQuestion();


        }


        cars.moveCars();


        cars.drawCars();


        cars.checkWin();


      }


    }


    else{


      fill(0);


      rect(200,
200, 200, 100);


      fill(255);


      textSize(25);


      text("Start
Game", 235, 255);


    }


}


  


//////////////////////////////


//       
Game class        //


//////////////////////////////


class Game{


  // Constructor


  public void Game(){


      


  }


    


  // Sets up and
initiates the Question and Answer classes,


  // creating a new
question and answer selection for the user


  public void newQuestion(){


    int rand=0;


    // Draw a
new question to the screen


    question.drawQuestion();


  


    // Reset
the 'correct' answer box


    for(int i=0; i<3; i++){


      answers[i].setCorrect(false);


    }


  


    //
Randomly designate an answer box as the 'correct' one


    answers[int(random(0,
3))].setCorrect(true);


    


    for(int i=0; i<3; i++){


      if(answers[i].isCorrect()==true){


        //
Give the 'correct' answer box the value of the answer that was worked out earlier


        answers[i].setValue(question.getAnswer());


      }


      else{


        //
Give the two other answer boxes random numbers in the possible range


        do{


          rand
= int(random(-149, 301));


        } while(rand==question.getAnswer());


        answers[i].setValue(int(random(-149,
301)));


      }


      


      //
Draw the box that the answer sits in


      answers[i].drawButton();


      


      //
Draw the answer text in the box


      answers[i].drawText();


    }


  }


}


  


//////////////////////////////


//     
Question class      //


//////////////////////////////


class Question{


  private int num1;


  private int num2;


  private int operator;


  private int answer;


  private String questionString;


    


  // For use in building
questionString


  private final String[] operators =
{"+", "-", "*", "/"};


    


  // Constructor


  public void Question(){


      


  }


    


  // Used by
drawQuestion to build a question to display to the


  // user and set fields
we'll need later such as the answer


  private void createQuestion(){


    // Create
the two random numbers


    num1
= int(random(limits[0], limits[1]));


    num2
= int(random(limits[0], limits[1]));


      


    // Select
a random operator (multiplication and division aren't used)


    int opSelect = int(random(0, 2));


      


    switch(opSelect){


      case 0:


        answer
= num1 + num2;


        break;


      case 1:


        answer
= num1 - num2;


        break;


      case 2: // Unused


        answer
= num1 * num2;


        break;


      case 3: // Unused


        answer
= num1 / num2;


        break;


    }


    // Build
the question string we want to display to the user


    questionString
= num1 + " "
 + operators[opSelect] + " " + num2 + " = ?";


  }


    


  // Create and display
the question string to the user


  public void drawQuestion(){


    createQuestion();


    fill(0);


    textSize(30);


    text(questionString,
175, 300);


  }


    


  // Used for returning
the correct answer to the random question


  public int getAnswer(){


    return answer;


  }


    


  // Use the mouse
coordinates stored by the mouseclicked event handler


  // and the known
coordinates of the answer boxes to find which answer


  // the user actually
clicked on, returns -1 if no box was clicked.


  public int getAnswerChoice(){


    // For
simplicity


    float x = mouseCoordsOnClick[0];


    float y = mouseCoordsOnClick[1];


      


    if((y>=475)
&& (y<=550)){ // Check if mouse is on the right level
(y-coordinates)


      if((x>=40)
&& (x<=165)){ // Leftmost box


        //print("First
answer\n");


        return 0;


      }


      else if((x>=240) && (x<=365)){ // Middle box


        //print("Second
answer\n");


        return 1;


      }


      else if((x>=440) && (x<=565)){ // Rightmost
box


        //print("Third
answer\n");


        return 2;


      }


      else{


        return -1;


      }


    }


    else{


      return -1;


    }


  }


    


  // Check if the user's
answer pick was the correct one


  public void checkAnswer(){


    int choice = getAnswerChoice();


    // A
return value of -1 indicates that the user


    // did not
click within any of the answer boxes


    if(choice==-1){


      print("Not
a button\n");


      return;


    }


    else if(answers[choice].isCorrect()==true){


      print("Correct
answer\n");


      cars.speedUp();


    }


    else if(answers[0].isCorrect()==false){


      print("Wrong
answer\n");


      cars.slowDown();


    }


    // Set the
flag to start a new question


    newQuestion
= true;


  }


}


  


  


//////////////////////////////


//      
Answer class       //


//////////////////////////////


class Answer{


  // X-coordinate of the
box to draw


  private int xCoord;


  // Value of the answer
to display


  private int value = 0;


  // Whether this answer
box is the 'correct' one


  private boolean correct = false;


    


  // Constructor


  public void Answer(){


        


  }


    


  // Draw the box in
which the answer text sits


  public void drawButton(){


    fill(0);


    rect(xCoord,
475, 125, 75);


  }


    


  // Draw the text onto
the box


  public void drawText(){


    fill(255);


    text(value,
xCoord+35, 525);


  }


    


  // Mutator for the
x-coordinate


  public void setXCoord(int newXCoord){


    xCoord =
newXCoord;


  }


    


  // Mutator for the
answer value


  public void setValue(int newValue){


    value =
newValue;


  }


    


  // Accessor for the
answer value


  public int getValue(){


    return value;


  }


    


  // Mutator for the
'correct answer box' boolean


  public void setCorrect(boolean isCorrect){


    correct =
isCorrect;


  }


    


  // Accessor for the
'correct answer box' boolean


  public boolean isCorrect(){


    return correct;


  }


}


  


//////////////////////////////


//       
Cars Class        //


//////////////////////////////


class Cars{


  float car1speed;


  float car2speed;


  float x1;


  float x2;


  boolean value;


  boolean correct;


  boolean win;


    


  //Initialise Variables


  public Cars(){


    x1 = 0;


    x2 = 0;


  }


    


  public void drawCars(){


    //Draw two
cars


    fill(#FF0000);


    rect(x1,
120, 50, 20);


    fill(#03FF04);


    rect(x2,
180, 50, 20);


     


    // To
indicate that the green car is the player's


    fill(0);


    textSize(13);


    text("Player",
x2+10, 195);


  }


  


  public void moveCars(){


    x1 += 0.4;


    x2 +=
0.25;


  }


      


  public void speedUp(){


    x2 += 15;


  }


    


  public void slowDown(){


    x2 -= 25;


  }


    


  public void checkWin(){


    if(x1>=550){


      gameWon=1;


    }


    else if(x2>=550){


      gameWon=2;


    }


  }


}


////////////////////////////////


//  Mouseclick event
handler  //


////////////////////////////////


void mouseClicked(){


  // Store the mouse's
current coordinates


  // for use in another
method


  if(gameStarted==true){


    mouseCoordsOnClick[0]
= mouseX;


    mouseCoordsOnClick[1]
= mouseY;


    question.checkAnswer();


  }


  else{


    if(mouseX>200
&& mouseX<400 && mouseY>200
&& mouseY<300){


      gameStarted
= true;


    }


  }


}




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