I only have till 10am here to submit this, its 9:51am now, anything will help! thanks!

You've forgotten to close parenthesis @ int c = mask.get( position.x, position.y ) ;
There are more:

// get the color from the mask image
int c = mask.get(position.x, position.y);
// Now test c for the color
if ( c == color(255, 0, 0) )        state = 0;  // red
else if ( c == color(0, 255, 0) )   state = 1;  // green
else if ( c == color(0, 0, 255) )   state = 2;  // blue

But unfortunately, an extra error -> Cannot find anything named "mask".

yeah i figured that out, but i didnt get any error saying about the mask, i did get one that said "unexpected token: c" in my line of code saying "int c == color" which i put in the first couple lines of text before void setup. what can i do to fix this?

I don't understand why you would compare the variable c to color, while at the same time declaring it w/ int

well i was just trying to fix the previous error, i get a different error if i take that line of code out.   if(c == color(255,0,0) { // red     thats the error now, what do i do to fix that? it says unexpected token: {

If you look up, you'll see I've already fix all of the if (c == color(...)) ...

yep you were right what can i do to get rid of the mask error? this is my code now. the error is cannot find anything named "mask" in the line of code saying         int c = mask.get(position.x, position.y);


    PFont font;
    PImage img;  // Image variable here
    int state = 1; // Start with the car on the track
    int timer=25;
    int timeLast = 0;
    PVector position, velocity;
    float angle, steerAngle;
    boolean[] keys = new boolean[256];

    //
    void setup() {
      //
      size(690, 645);
      smooth();
      timeLast=second();
      font = loadFont("ARDESTINE-48.vlw");
      textFont(font, 48);
      // load images in setup
      img = loadImage("racecartrack.jpg");
     
      img = loadImage("mask.jpg");
      //
      velocity = new PVector();
      position = new PVector(width * 10.5, height * 10.5);
      //
      angle = 0.0;
      steerAngle = 0.0;
    }

    //
    void draw() {
      if (timer>0) {
        game();
      }
      else {
         state = 4; // out of time
       }
    }
    void game() {
      if (second()!=timeLast) {
        timeLast=second();
        timer-=1;
      }
      //
      background(img);
      fill(0);
      text("Timer: "+timer, 320, 35);
      //
      switch(state){
  case 0:
    text("Crashed - you loose", 320, 70);
    break;
  case 2:
    text("Finished - you win", 320, 70);
    break;
  case 4:
    text("Out of time - you loose", 320, 70);
         break;
     }
      PVector force = new PVector();
      //
      PVector vector1 = new PVector(sin(angle), cos(angle));
      PVector vector2 = new PVector(vector1.y, - vector1.x);
      //
      float forwardVelocity = vector1.dot(velocity);
      float sidewaysVelocity = vector2.dot(velocity);
      //
      steerAngle = 0.0;
      float factor = constrain(forwardVelocity * 1.0, -2.5, 2.5);
      if (keys[37]) {
        angle += 0.025 * factor;
        steerAngle = - PI * 0.75;
      }
      if (keys[39]) {
        angle -= 0.025 * factor;
        steerAngle = PI * 0.75;
      }
      //
      force.add(PVector.mult(vector1, -forwardVelocity * 0.3));
      if (keys[38]) {
        force.add(PVector.mult(vector1, 3.0));
      }
      if (keys[40]) {
        force.add(PVector.mult(vector1, -3.0));
      }
      //
      float sidewaysFriction = - constrain(sidewaysVelocity * 5.0, -10.0, 10.0);
      force.add(PVector.mult(vector2, sidewaysFriction));
      //
      force.div(15.0);
      velocity.add(force);
      position.add(velocity);
      //
      position.x = (position.x + width) % width;
      position.y = (position.y + height) % height;
      // get the color from the mask image
       int c = mask.get(position.x, position.y);
  // Now test c for the color
  if(c == color(255,0,0))
            state = 0; // red
      else if (c == color(0,255,0))
            state = 1; //green
      else if (c == color(0,0,255))
            state = 2; // blue
      fill(0, 210);
      noStroke();
      rectMode(CENTER);
      //
      pushMatrix();
      translate(position.x, position.y);
      rotate(-angle);
      rect(0, 0, 35, 75);
      pushMatrix();
      translate(10, 17);
      rotate(steerAngle);
      rect(0, 5, 5, 10);
      popMatrix();
      pushMatrix();
      translate(-10, 17);
      rotate(steerAngle);
      rect(0, 5, 5, 10);
      popMatrix();
      pushMatrix();
      translate(-10, -17);
      rect(0, -5, 5, 10);
      popMatrix();
      pushMatrix();
      translate(10, -17);
      rect(0, -5, 5, 10);
      popMatrix();
      popMatrix();
    }
    //
    void keyPressed() {
      keys[keyCode] = true;
    }
    void keyReleased() {
      keys[keyCode] = false;
    }

I'm still a noob in Processing. So I don't know much about all its graphics options.
You have to remember where you heard about that mask.get() method you're trying to use there!

alright thanks for your help thus far!

anyone else know how to fix this?

I only have till 10am here to submit this, its 9:51am now, anything will help! thanks!

Since you posted this about an hour ago I assume that you have run out of time.

The problems you are experiencing in this topic are about code I posted in responce to one of your earlier topics. That meant that you gave GoToLoop little chance of solving or even understanding the actual program logic because the explanation of that code is not in this thread. Not only that but the error was caused by failing to apply my code correctly.

You have 2 images one for the game background (img) and a second which acts as a test for the cars position.

According to this code
      img = loadImage("racecartrack.jpg");
     
      img = loadImage("mask.jpg");

you have loaded the game image and then immediately replaced it with the mask image. You should have

      img = loadImage("racecartrack.jpg");
     
      mask= loadImage("mask.jpg");

and at the top (as explained in the other thread)

      PImage img, mask;  // Image variables here

If you make these changes it should solve some of your problems.

In future do not send PMs with loads of code since Zoho does not format personal messages (in fact Zoho sends it as a single paragraph), better post the code on the forum and send a link to the topic by PM

alright my bad, im new to this and processing. I did as you said and then i got an error that said "duplicate field matt_scantlen_gamenine02.img" saying it was in the line "PImage img;  // Image variable here" so i took this code out and now the error is "the method get(int, int) in the type PImage is not applicable for the arguments (float, float)" saying  the line of code "int c = mask.get(position.x, position.y);" had this error in it. how do i fix this?

Change the line to this

int c = mask.get((int)position.x, (int)position.y);

nice it works now, but you dont lose if the game timer hits zero or you go off the track.....do i need to make screens for that? if so how do i do that?

It doesnt even go to a win screen if you win either. I dont think the color thing is working......not sure what to do.......

Hello,

a answer is to use states the program can be in (as water can be in state frozen, liquid etc.).

You have a variable state already.
Use it.

Your draw() is now:

1.     void draw() {
2.       if (timer>0) {
3.         game();
4.       }
5.       else {
6.          state = 4; // out of time
7.        }
8.     }

Hm.... what you want is

1.     void draw() {
2.       if (timer>0) {
3.          // do nothing
4.       }
5.       else {
6.          // change state
7.          state = 4; // out of time
8.        }
9.        game(); // outside of if and else because it handles the states!
   
10.     }

You could actually name the states, so instead of e.g. "4" it would read "stateOutOfTime" etc.
which can be one values of those:

1. final int stateOfProgramCrashed = 0;
2. final int stateOfProgramPlay = 1; // car on track
   
3. final int stateOfProgramWin   = 2;
4. final int stateOutOfTime = 4;

btw

in game()
I read

1.   case 4:
2.     text("Out of time - you loose", 320, 70);
3.          break;
4.      } // this is the end of switch
5.       PVector force = new PVector();
6.       .....

since this is so, all the stuff after

1.       PVector force = new PVector();

is executed no matter what state you are in.
Bad.
Insert after line 4 (before PVector force = new PVector(); )

1. if (state == 1) {

and at the end of game()

1. }

so all the stuff is only done when he's still playing.
(Or as part of switch() but that's too complicate).

Remember that you can use ctrl-t to format your code.


Greetings, Chrisir      

example for states
http://www.openprocessing.org/sketch/76025

You need to make sure of the colours you are using for the mask image.

right after the int c= mask.get(... line add this line

println(red(c) + " " + green(c) + " "  + blue(c));

Now run your program and in the bottom of the Processing IDE you should see sets of three numbers being printed out. These are the RGB values for the colours that should be used in the code

if(c == color(255,0,0))
  state = 0; // red (off track)
else if (c == color(0,255,0))
  state = 1; //green (on track)
else if (c == color(0,0,255))
  state = 2; // blue (finish line)

Now the red/green/blue values that were printed out should match those in these statements depending on where the car is. Alter the these to match color(red, green, blue)

oh, we posted at the same time...

but I think he needs to do both our comments, no?

works flawlessly save for if you dont make it in time the game doesnt say "out of time" thats the only thing not working. how would i fix that? once thats fixed im golden.

@Chrisir thats true he needs to implement states

I raised the point about states in one of his other threads on this topic

Id rather not deal with states. It works fine now. can you just tell me how to make it say out of time if you dont make it to the finish by the time the timer ends? I need to turn this in haha.

Yet another duplicate thread... I see quarks made the same answer than me, so I could have save some time to avoid looking at your code and answering. It shows why duplicate threads are evil... Don't do that.
I will now delete the thread where I answered, since I am the only one there.

can you just tell me how to make it say out of time if you dont make it to the finish by the time the timer ends?

1. void game() {
2.   if (second()!=timeLast) {
3.      timeLast=second();
4.      timer-=1;
5.   }
6.   if(timer < 0){
7.             text("Out of time - you loose", 320, 70);
8.       }
   
9. 
   

sorry guys, like i said before im new to this and just want to get this project done bc its already late. I appreciate everyones help tho, quarks could you tell me how to make my game say out of time if the timer counts down to zero and you are not at the finish line? right now its not saying that if this happens. thats the only thing i want to fix. Im not going to try and deal with states thats for another day. I'll probably just end up with errors if i try them. plus my project is already late......

wait, it still doesnt show up! what should i do?
heres the code

PFont font;
    PImage img, mask;  // Image variables here
    int state = 1; // Start with the car on the track
    int timer=30;
    int timeLast = 0;
    PVector position, velocity;
    float angle, steerAngle;
    boolean[] keys = new boolean[256];

    //
    void setup() {
      //
      size(690, 645);
      smooth();
      timeLast=second();
      font = loadFont("ARDESTINE-48.vlw");
      textFont(font, 48);
      // load images in setup
      img = loadImage("racecartrack.jpg");
     
      mask= loadImage("mask.jpg");
      //
      velocity = new PVector();
      position = new PVector(width * 10.5, height * 10.5);
      //
      angle = 0.0;
      steerAngle = 0.0;
    }

    //
    void draw() {
      if (timer>0) {
        game();
      }
      else {
         state = 4; // out of time
       }
    }
    void game() {
      if (second()!=timeLast) {
        timeLast=second();
        timer-=1;
      }
      if(timer < 0){
            text("Out of time", 40, 35);
      }
      //
      background(img);
      fill(0);
      text("Timer: "+timer, 320, 35);
      //
      switch(state){
  case 0:
    text("Crashed", 40, 35);
    break;
  case 2:
    text("Finished", 40, 35);
    break;
  case 4:
    text("Out of time", 40, 35);
         break;
     }
      PVector force = new PVector();
      //
      PVector vector1 = new PVector(sin(angle), cos(angle));
      PVector vector2 = new PVector(vector1.y, - vector1.x);
      //
      float forwardVelocity = vector1.dot(velocity);
      float sidewaysVelocity = vector2.dot(velocity);
      //
      steerAngle = 0.0;
      float factor = constrain(forwardVelocity * 1.0, -2.5, 2.5);
      if (keys[37]) {
        angle += 0.025 * factor;
        steerAngle = - PI * 0.75;
      }
      if (keys[39]) {
        angle -= 0.025 * factor;
        steerAngle = PI * 0.75;
      }
      //
      force.add(PVector.mult(vector1, -forwardVelocity * 0.3));
      if (keys[38]) {
        force.add(PVector.mult(vector1, 3.0));
      }
      if (keys[40]) {
        force.add(PVector.mult(vector1, -3.0));
      }
      //
      float sidewaysFriction = - constrain(sidewaysVelocity * 5.0, -10.0, 10.0);
      force.add(PVector.mult(vector2, sidewaysFriction));
      //
      force.div(15.0);
      velocity.add(force);
      position.add(velocity);
      //
      position.x = (position.x + width) % width;
      position.y = (position.y + height) % height;
      // get the color from the mask image
int c = mask.get((int)position.x, (int)position.y);
  // Now test c for the color
  println(red(c) + " " + green(c) + " "  + blue(c));
if(c == color(237,27,36))
  state = 0; // red (off track)
else if (c == color(35, 177,77))
  state = 1; //green (on track)
else if (c == color(77,110, 243))
  state = 2; // blue (finish line)
      fill(0, 210);
      noStroke();
      rectMode(CENTER);
      //
      pushMatrix();
      translate(position.x, position.y);
      rotate(-angle);
      rect(0, 0, 35, 75);
      pushMatrix();
      translate(10, 17);
      rotate(steerAngle);
      rect(0, 5, 5, 10);
      popMatrix();
      pushMatrix();
      translate(-10, 17);
      rotate(steerAngle);
      rect(0, 5, 5, 10);
      popMatrix();
      pushMatrix();
      translate(-10, -17);
      rect(0, -5, 5, 10);
      popMatrix();
      pushMatrix();
      translate(10, -17);
      rect(0, -5, 5, 10);
      popMatrix();
      popMatrix();
    }
    //
    void keyPressed() {
      keys[keyCode] = true;
    }
    void keyReleased() {
      keys[keyCode] = false;
    }

Id rather not deal with states.

you already use states anyway.

Follow my advice above.

like this...

1. PFont font;
2. PImage img, mask;  // Image variables here
3. int state = 1; // Start with the car on the track
4. int timer=30;
5. int timeLast = 0;
6. PVector position, velocity;
7. float angle, steerAngle;
8. boolean[] keys = new boolean[256];
9. //
10. void setup() {
11.   //
12.   size(690, 645);
13.   smooth();
14.   timeLast=second();
15. 
    
16.   font = loadFont("ARDESTINE-48.vlw");
17.   textFont(font, 48);
18.   // load images in setup
19.   img = loadImage("racecartrack.jpg");
20.   mask= loadImage("mask.jpg");
21.   //
22.   velocity = new PVector();
23.   position = new PVector(width * 10.5, height * 10.5);
24.   //
25.   angle = 0.0;
26.   steerAngle = 0.0;
27. }
28. //
29. void draw() {
30.   if (timer>0) {
31.     // do nothing
32.   }
33.   else {
34.     state = 4; // out of time
35.   }
36.   game();
37. }
38. void game() {
39.   if (second()!=timeLast) {
40.     timeLast=second();
41.     timer-=1;
42.   }
43.   //if (timer < 0) {
44.   //  text("Out of time", 40, 35);
45.   //}
46.   //
47.   background(0);
48.   fill(0);
49.   text("Timer: "+timer, 320, 35);
50.   //
51.   switch(state) {
52.   case 0:
53.     text("Crashed", 40, 35);
54.     break;
55.   case 1:
56.     // do nothing
    
57.     break;
58.   case 2:
59.     text("Finished", 40, 35);
60.     break;
61.   case 4:
62.     text("Out of time", 40, 35);
63.     break;
64.   } // switch
    
65. 
    
66.   // if state is playing :
67.   if (state == 1) {
68.     PVector force = new PVector();
69.     //
70.     PVector vector1 = new PVector(sin(angle), cos(angle));
71.     PVector vector2 = new PVector(vector1.y, - vector1.x);
72.     //
73.     float forwardVelocity = vector1.dot(velocity);
74.     float sidewaysVelocity = vector2.dot(velocity);
75.     //
76.     steerAngle = 0.0;
77.     float factor = constrain(forwardVelocity * 1.0, -2.5, 2.5);
78.     if (keys[37]) {
79.       angle += 0.025 * factor;
80.       steerAngle = - PI * 0.75;
81.     }
82.     if (keys[39]) {
83.       angle -= 0.025 * factor;
84.       steerAngle = PI * 0.75;
85.     }
86.     //
87.     force.add(PVector.mult(vector1, -forwardVelocity * 0.3));
88.     if (keys[38]) {
89.       force.add(PVector.mult(vector1, 3.0));
90.     }
91.     if (keys[40]) {
92.       force.add(PVector.mult(vector1, -3.0));
93.     }
94.     //
95.     float sidewaysFriction = - constrain(sidewaysVelocity * 5.0, -10.0, 10.0);
96.     force.add(PVector.mult(vector2, sidewaysFriction));
97.     //
98.     force.div(15.0);
99.     velocity.add(force);
100.     position.add(velocity);
101.     //
102.     position.x = (position.x + width) % width;
103.     position.y = (position.y + height) % height;
104.     // get the color from the mask image
105.     int c = mask.get((int)position.x, (int)position.y);
106.     // Now test c for the color
107.     println(red(c) + " " + green(c) + " "  + blue(c));
108.     if (c == color(237, 27, 36))
109.       state = 0; // red (off track)
110.     else if (c == color(35, 177, 77))
111.       state = 1; //green (on track)
112.     else if (c == color(77, 110, 243))
113.       state = 2; // blue (finish line)
114.     fill(0, 210);
115.     noStroke();
116.     rectMode(CENTER);
117.     //
118.     pushMatrix();
119.     translate(position.x, position.y);
120.     rotate(-angle);
121.     rect(0, 0, 35, 75);
122.     pushMatrix();
123.     translate(10, 17);
124.     rotate(steerAngle);
125.     rect(0, 5, 5, 10);
126.     popMatrix();
127.     pushMatrix();
128.     translate(-10, 17);
129.     rotate(steerAngle);
130.     rect(0, 5, 5, 10);
131.     popMatrix();
132.     pushMatrix();
133.     translate(-10, -17);
134.     rect(0, -5, 5, 10);
135.     popMatrix();
136.     pushMatrix();
137.     translate(10, -17);
138.     rect(0, -5, 5, 10);
139.     popMatrix();
140.     popMatrix();
141.   } // if
     
142. }
143. 
     
144. //
145. void keyPressed() {
146.   keys[keyCode] = true;
147. }
148. 
     
149. void keyReleased() {
150.   keys[keyCode] = false;
151. }

thanks guys for all your help! i really appreciated it! everything looks greaat in the game, couldn't have done it without you guys!

Congratulations!

Well done!