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How to put a function in a constructor and call it later in the class

[5 Replies]
- 21-Mar-2013 10:32 AM
- Forum: Programming Questions
      Hi,

      I'm trying to make a few class files that could be copy/pasted into one of my sketches (Or someone else's) that would quickly let me make a button with custom/existing functions that could be easily defined in the main sketch, with only minimal other work to the main sketch, and no other modifications to the copy/pasted files besides possibly extending the class besides extending the class with the list of functions to add custom ones.
      So basically, I would have a class called Functions which would be defined in the sketch as, lets say, Functions function, which the Button class would grab functions from. It would have a long series of void ...(...,...,...)s, each of which would do a certain thing, lets say, void ChangeBackground( color c), which would be called on in the Button class.
I know how to make a list of functions using a variable in the constructor that would be strained through a series of conditionals to find the right function, but I'm trying to do it where someone could add new functions by simply extending the Functions class/adding new void ...s to the existing one, instead of modifying the Button. The best way I can think to do this would be putting a variable in the Button class that would be set to a function, which would then be used to call on part of the Functions class which the button of pressed.

      Define the Functions class in the sketch (Functions function = new Functions()) --> Constructor (For example: test = new Button(...,...,...,function.ChangeBackground( color(...,...,...)))) --> Have a variable in the class be set to the function --> Call on the function using the variable in a part of the class

I'm not sure if this is possible, and what I've done so far hasn't resulted in anything more than constructor errors, function errors, and the occasional NPE. If anyone has any ideas to help, they would be much appreciated.

Main sketch:
1. Button test;
2. Functions function;
3. void setup() {
4. imageMode(CENTER);
5. size(500,500);
6. test = new Button(width/2,height/2,50,50,loadImage("Musketeer.png"),loadImage("Galleon.png"),"Hello!",function.ChangeBackground(color(255,0,0)));
7. function = new Functions();
8. }
9. void draw() {
10. test.Display();
11. }
12. void mousePressed() {
13. test.mousePressed();
14. }
Button class:
1. class Button {
2. PVector location; //Location of the button
3. int xSize,ySize; //Size ofthe button
4. PImage on,off; //Images for mosue overlap
5. String type; //Text to be displayed in the button
6. boolean mouseOver;
7. void callFuntion;
8. Button(float x, float y, int xs, int ys, PImage ion, PImage ioff, String t, void a) {
9. location = new PVector(x,y);
10. xSize = xs;
11. ySize = ys;
12. on = ion;
13. off = ioff;
14. type = t;
15. callFuntion = a;
16. }
17. boolean mouseOver(float x, float y, float sizeX, float sizeY) {
18. x-=sizeX/2;
19. y-=sizeY/2;
20. if(mouseX>x&&mouseX<x+sizeX&&mouseY>y&&mouseY<y+sizeY) {
21. return true;
22. } else {
23. return false;
24. }
25. }
26. void Display() {
27. if(mouseOver(location.x,location.y,xSize,ySize)) {
28. image(off,location.x,location.y,xSize,ySize);
29. }
30. else if(!mouseOver(location.x,location.y,xSize,ySize)) {
31. image(on,location.x,location.y,xSize,ySize);
32. }
33. text(type,location.x-(xSize/2),location.y);
34. }
35. void mousePressed() {
36. if(mouseOver(location.x,location.y,xSize,ySize)) {
37. }
38. }
39. }
Functions class:
1. class Functions {
2. Functions() {
3. }
4. void ChangeBackground(color c) {
5. background(c);
6. }
7. void ChangeFill(color c) {
8. fill(c);
9. }
10. void ChangeTint(color c) {
11. tint(c);
12. }
13. void ChangeStroke(color c) {
14. stroke(c);
15. }
16. void ChangeFont(PFont s) {
17. textFont(s);
18. }
19. void ChangeFontSize(int a) {
20. textSize(a);
21. }
22. void DrawShape(float x, float y) {
23. point(x,y);
24. }
25. void DrawShape(String s, float x, float y, float w, float h) {
26. if(s=="RECT") {
27. rect(x,y,w,h);
28. }
29. else if(s=="ELLIPSE") {
30. ellipse(x,y,w,h);
31. }
32. else if(s=="LINE") {
33. line(x,y,w,h);
34. }
35. }
36. void DrawShape(float x1, float y1, float x2, float y2, float x3, float y3) {
37. triangle(x1,y1,x2,y2,x3,y3);
38. }
39. void DrawText(String s, float x, float y) {
40. text(s,x,y);
41. }
42. }

More errors to be fixed

[8 Replies]
- 15-Mar-2013 10:33 AM
- Forum: Programming Questions
Hi,
This problem has mainly to do with ArrayLists; I really don't know how to use them. I've had to scrap a project that I spent a nice amount of time on because ArrayLists didn't co-operate, and I think I'm scrapping the next one. My inability to work with them has basically stopped me from learning how to code more complicated things. So, before I scrap this project, I was wondering if anyone knew how to fix the problems I made. Basically, I'm stuck on getting the mover (myFirstMover, from the class Mover) to go towards an ArrayList of "targets," (Classes Target and TargetManager) the first one being the mouse (Class MousePointer). Sadly, I can't give you much information on why the problem is happening, other than a nullPointerError in void Behavior in the Mover class, and probably the Mover just not going towards the mouse (If my current luck holds out). Again, I'm sorry for the probably very obvious error.

Anyways, here's the code:

Main sketch:
1. Mover myFirstMover;
2. TargetManager tManager;
3. MousePointer pointer;
4. void setup() {
5. frameRate(15);
6. myFirstMover = new Mover(width/2,height/2);
7. tManager = new TargetManager();
8. pointer = new MousePointer();
9. size(300,300);
10. }
11. void draw() {
12. background(0);
13. myFirstMover.Display();
14. myFirstMover.Update();
15. myFirstMover.Movement();
16. myFirstMover.Emoticon();
17. myFirstMover.Behavior();
18. tManager.Manage();
19. pointer.Display();
20. pointer.Update();
21. }
Mover class:
1. import java.util.Iterator;
2. class Mover { //Class for the movers
3. PVector location,targetLocation; //Location of the mover, and of the target location
4. float hungerLevel,thirstLevel,happinessLevel; //How humgry, thirsty, and happy the mover is, the higher it gets the more likely the mover is to seek water/food, and if it is high enough, the mover will die
5. float fear; //Various factors that affect the behavior of the mover
6. ArrayList standing;
7. int viewDistance; //Radius of detection for items such as food and water
8. boolean target; //Whetehr or not the mover is activley moving towards something
9. int speed,movementTimer,movementDir; //Speed relates to how fast the movement timer increases, and movementTimer/movementDir are used in Movement() to trigger a movement
10. Mover(float x, float y) { //Constructor
11. location = new PVector(x,y);
12. hungerLevel = 5;
13. thirstLevel = 0;
14. happinessLevel = 5;
15. standing = new ArrayList();
16. viewDistance = 5;
17. target = false;
18. speed = round(random(4,8)); //Randomises the speed for each mover
19. }
20. void Display() { //Shows the mover
21. if(happinessLevel<4) { //These conditionals change the color of the mover based on its happiness
22. stroke(255,0,0);
23. }
24. else if(happinessLevel>=4&&happinessLevel<=8) {
25. stroke(255,255,255);
26. }
27. else if(happinessLevel>8) {
28. stroke(0,255,0);
29. }
30. rectMode(CENTER);
31. rect(location.x,location.y,3,3); //Draws the point
32. }
33. void Update() { //Performs various changes in miscelanious values, including managing hunger, thirst, and happiness
34. movementTimer+=speed;
35. hungerLevel+=0.0005;
36. thirstLevel+=0.0012;
37. if(hungerLevel<2&&happinessLevel<10) {
38. happinessLevel+=0.006;
39. }
40. else if(hungerLevel>5&&happinessLevel>0) {
41. happinessLevel-=0.01;
42. }
43. if(thirstLevel<2&&happinessLevel<10) {
44. happinessLevel+=0.006;
45. }
46. else if(thirstLevel>5&&happinessLevel>0) {
47. happinessLevel-=0.012;
48. }
49. }
50. void Behavior() { //Behavior regarding targets, other movers etc
51. Iterator<Target> mTargets = tManager.targets.iterator();
52. while(mTargets.hasNext()) {
53. Target t = mTargets.next();
54. //if((sq(t.location.x-location.x))+(sq(t.location.y-location.y))<sq(viewDistance)) {
55. if(t.type=="Water"&&thirstLevel>5) {
56. targetLocation.x=t.location.x-location.x;
57. targetLocation.y=t.location.y-location.y;
58. target=true;
59. }
60. else if(t.type=="Food"&&hungerLevel>5) {
61. targetLocation.x=t.location.x-location.x;
62. targetLocation.y=t.location.y-location.y;
63. target=true;
64. }
65. else if(t.type=="Waypoint") {
66. targetLocation.x=t.location.x-location.x;
67. targetLocation.y=t.location.y-location.y;
68. target=true;
69. }
70. else {
71. target=false;
72. //}
73. }
74. }
75. }
76. boolean Alive() { //True/false for whether or not the mover is alive, if it is false the mover is removed
77. if(hungerLevel<10&&thirstLevel<10) { //Checks the hunger/thirst levels
78. return true;
79. }
80. else {
81. return false;
82. }
83. }
84. void Movement() { //Performs movements for the mover
85. if(movementTimer>50&&target==false) { //Counter for moving it every cerian ammount of time, and making sure it has no target, as this is for randomly moving
86. movementDir=floor(random(5)); //Randomises the direction
87. if(movementDir==0) { //Right
88. location.x++;
89. movementTimer=0;
90. }
91. else if(movementDir==1) { //Down
92. location.y++;
93. movementTimer=0;
94. }
95. else if(movementDir==2) { //Left
96. location.x--;
97. movementTimer=0;
98. }
99. else if(movementDir==3) { //Up
100. location.y--;
101. movementTimer=0;
102. }
103. else { //Mover is resting
104. movementTimer=-100;
105. }
106. }
107. else if(movementTimer>50&&target==true) {
108. targetLocation.normalize();
109. targetLocation.mult(1);
110. location.add(targetLocation);
111. }
112. }
113. void CheckEdges() { //Bounces the mover back if they try to wander off screen
114. if(location.x<0) {
115. location.x++;
116. }
117. else if(location.x>width) {
118. location.x--;
119. }
120. if(location.y<0) {
121. location.y++;
122. }
123. else if(location.y>height) {
124. location.y--;
125. }
126. }
127. void Emoticon() { //DIsplays an "emoticon" above the mover to show why it is happy/unhappy
128. float emoticonCycler=0;
129. if(thirstLevel>5&&emoticonCycler>0&&emoticonCycler<1) {
130. stroke(#0F79CE,150);
131. point(location.x,location.y-1);
132. }
133. if(hungerLevel>5/*&&emoticonCycler>1&&emoticonCycler<2*/) {
134. stroke(#0F79CE,150);
135. point(location.x,location.y-1);
136. }
137. emoticonCycler+=0.25;
138. if(emoticonCycler>5) {
139. emoticonCycler=0;
140. }
141. }
142. }
Target class:
1. class Target {
2. PVector location;
3. float urgency;
4. String type;
5. boolean active;
6. Target() {
7. }
8. }
TargetManager class:
1. import java.util.Iterator;
2. class TargetManager {
3. ArrayList<Target> targets;
4. TargetManager() {
5. targets = new ArrayList<Target>();
6. targets.add(new MousePointer());
7. }
8. void Manage() {
9. Iterator<Target> mTargets = targets.iterator();
10. while(mTargets.hasNext()) {
11. Target t = mTargets.next();
12. }
13. }
14. }
MousePointer class:
1. class MousePointer extends Target {
2. MousePointer() {
3. location = new PVector(mouseX,mouseY);
4. type = "Waypoint";
5. }
6. void Display() {
7. stroke(255);
8. line(mouseX,mouseY-5,mouseX,mouseY+5);
9. line(mouseX-5,mouseY,mouseX+5,mouseY);
10. }
11. void Update() {
12. location.x=mouseX;
13. location.y=mouseY;
14. }
15. }
Quick edit: Based on the location of the null error, my Mover seems to recognize that there is a target available. Also, I commented out the leftover MousePointer things in the main sketch from before I made MousePointer an extension of Target.

Some errors to be fixed

[1 Reply]
- 13-Mar-2013 09:02 AM
- Forum: Programming Questions
Hi,
Frist of all, sorry for the vague title, it was the closest I could come to describing all my problems. First of all, the rotation doesn't work, (using the ship created in ShipManager.Start()) by which I mean it will rotate, but just in little, seemingly random ways whenever I move the mouse. It should rotate to face the mouse, but I probably messed something up with the translation. Secondly, the movement keys don't work correctly. I can press one key, but the ship just glides off-screen and doesn't respond to any other keys. Lastly, I know this error is known, but on line 133 of the Ship class, (When un-commented, of course) it produces a "Cannot make a static reference to a non-static field" error. Also, any suggestions with any improvements/suggestions/clean-ups to the code would be much appreciated, as I'm still learning how to use iterators and arraylists correctly. Thanks for reading!

Code: (WIP, wanted to share it to get the errors fixed before I continued)

Main Sketch:
1. LaserManager LaserManage;
2. ShipManager ShipManage;
3. void setup() {
4. size(500,500);
5. LaserManage = new LaserManager();
6. ShipManage = new ShipManager(width/2,0,width,height);
7. ShipManage.Start();
8. }
9. void draw() {
10. background(0);
11. LaserManage.Manage();
12. ShipManage.Manage();
13. }
Ship class:
1. class Ship {
2. PVector Ploc,Pvel,Pacc,NewLoc; //Defines the vectors for movement, location, velocity, acceleration, and (For AI) the pathfinder location.
3. String Name; //Name of the ship
4. boolean IsAI; //IsAI: Whether the ship is run by an AI and will pathfind, or will use controls.
5. float Health,Mass,Size,Inertia,Team,MaxSpeedFront,AccFront,MaxSpeedSide,AccSide,MaxSpeedBack,AccBack; //Health: Ammount of health the ship has. MaxSpeedFront-AccBack: Defines the maximum speeds/accelerations of the ship.
6. int LaserCharge,LaserCount,MissileCharge,MissileCount; //Charnging times of the various weapons.
7. PImage Image; //Image used for the ship.
8. PVector Mouse; //These are various vectors constantly defined and used in some calculations.
9. Ship(String n, float x, float y, int team, int s, int m, boolean ai, PImage i, int h, float in, float sf, float ss, float sb, float af, float as, float ab) {
10. //Name, x starting pos, y starting pos, team, size (Per 16 pixels), mass (Per 1000kg), AI, image used, starting health.
11. Ploc = new PVector(x,y);
12. Pvel = new PVector(0,0);
13. Pacc = new PVector(0,0);
14. Name = n;
15. IsAI = ai;
16. Health = h;
17. Mass = m*1000;
18. Size = s*16;
19. Inertia = in;
20. Team = team;
21. MaxSpeedFront = sf;
22. AccFront = af;
23. MaxSpeedBack = sb;
24. AccBack = ab;
25. MaxSpeedSide = ss;
26. AccSide = as;
27. LaserCharge = 0;
28. LaserCount = 0;
29. MissileCharge = 0;
30. MissileCount = 0;
31. Image = i;
32. Mouse = new PVector(mouseX,mouseY);
33. }
34. void MovementHuman() {
35. if(keyPressed) {
36. if(key=='w' || key=='W'&&Pacc.y>-MaxSpeedFront) {
37. Pacc.y = Pacc.y-(AccFront/(Inertia*Mass))*MaxSpeedFront;
38. }
39. if(key=='s' || key=='S'&&Pacc.y<MaxSpeedBack) {
40. Pacc.y = Pacc.y+(AccBack/(Inertia*Mass))*MaxSpeedBack;
41. }
42. if(key=='a' || key=='A'&&Pacc.x>-MaxSpeedSide) {
43. Pacc.x = Pacc.x-(AccSide/(Inertia*Mass))*MaxSpeedSide;
44. }
45. if(key=='d' || key=='D'&&Pacc.x<MaxSpeedSide) {
46. Pacc.x = Pacc.x+(AccSide/(Inertia*Mass))*MaxSpeedSide;
47. }
48. }
49. else {
50. if(Pacc.y>0) {
51. Pacc.y = Pacc.y/((AccFront/(Inertia*Mass))*MaxSpeedFront);
52. }
53. else if(Pacc.y<0) {
54. Pacc.y = Pacc.y/((AccBack/(Inertia*Mass))*MaxSpeedBack);
55. }
56. if(Pacc.x>0) {
57. Pacc.x = Pacc.x/((AccSide/(Inertia*Mass))*MaxSpeedSide);
58. }
59. else if(Pacc.x<0) {
60. Pacc.x = Pacc.x/((AccSide/(Inertia*Mass))*MaxSpeedSide);
61. }
62. }
63. }
64. int MovementTimer = 0; //Time until next pathfind.
65. void MovementAI() { //"Pathfinds" the AI, moving it to a random location.
66. MovementTimer++;
67. if(MovementTimer>150) { //Pathfinds.
68. NewLoc.set(random(PathfindBoundary1.x,PathfindBoundary2.x),random(PathfindBoundary1.y,PathfindBoundary2.y),0);
69. MovementTimer = 0;
70. }
71. }
72. void Update() {
73. Pacc.normalize();
74. if(Pvel.x<MaxSpeedSide&&Pvel.x>-MaxSpeedSide&&Pvel.y<MaxSpeedFront&&Pvel.y>-MaxSpeedBack) {
75. Pvel.add(Pacc);
76. }
77. Ploc.add(Pvel);
78. Pacc.mult(0);
79. Mouse.set(mouseX,mouseY,0);
80. }
81. void DisplayHuman() {
82. imageMode(CENTER);
83. pushMatrix();
84. translate(Ploc.x,Ploc.y);
85. float Rotation;
86. Rotation = PVector.angleBetween(Ploc,Mouse);
87. rotate(PVector.angleBetween(Ploc,Mouse));
88. image(Image,0,0,Size,Size);
89. popMatrix();
90. }
91. void DisplayAI() {
92. imageMode(CENTER);
93. float Rotation; //Rotation of the ship.
94. Rotation = PVector.angleBetween(Ploc,NewLoc);
95. pushMatrix();
96. rotate(Rotation);
97. image(Image,Ploc.x,Ploc.y,Size,Size);
98. popMatrix();
99. }
100. void CheckEdges() { //Checks if the ship is outside of the box and bounces it back.
101. if(Ploc.x<0+Size/2) {
102. Ploc.x++;
103. }
104. else if(Ploc.x>width-Size/2) {
105. Ploc.x--;
106. }
107. if(Ploc.y<0+Size/2) {
108. Ploc.y++;
109. }
110. else if(Ploc.y>height-Size/2) {
111. Ploc.y--;
112. }
113. }
114. boolean MouseOver() { //Checks if the mouse if over the ship.
115. if(mouseX<Ploc.x+Size/2&&mouseX>Ploc.x-Size/2&&mouseY<Ploc.y+Size/2&&mouseY>Ploc.y-Size/2) {
116. return true;
117. }
118. else {
119. return false;
120. }
121. }
122. boolean IsActive() { //Checks if the ship is active.
123. if(Health>0) {
124. return true;
125. }
126. else {
127. return false;
128. }
129. }
130. PVector TargetLoc = new PVector(0,0);
131. void ShootLaserHuman() { //Fires the laser of the ship.
132. TargetLoc.set(Mouse);
133. //LaserManager.Lasers.add(new Laser(Ploc.x,Ploc.y,1,4,TargetLoc.x,TargetLoc.y,Laser1,255));
134. }
135. }
Laser class:
1. class Laser {
2. PVector Ploc,Pvel; //Locaxtion and velocity of the laser.
3. int Speed;
4. float Color,Timer,Range,Damage; //Defines the speed, color, and time of travel of the laser.
5. PImage Image; //Image used for the laser.
6. Laser(float x, float y, int d, int s, float vx, float vy, float r, PImage i, float c) {
7. // Starting x and y positions, damage, speed (in pixles), velocity x and y, range, image to be used, tinting color (Grayscale).
8. Ploc = new PVector(x,y);
9. Pvel = new PVector(vx,vy);
10. Speed = s;
11. Color = c;
12. Range = r;
13. Damage = d;
14. Image = i;
15. }
16. void Display() { //Displays the laser.
17. tint(Color);
18. image(Image,Ploc.x,Ploc.y,4,8);
19. }
20. void Update() { //Moves the laser and updates the timer.
21. Ploc.add(Pvel);
22. Pvel.normalize();
23. Pvel.mult(Speed);
24. Timer++;
25. }
26. boolean IsActive() { //Checks if the laser is active, if it is ruled inactive it will be deleted.
27. if(Timer<Range) {
28. return true;
29. }
30. else {
31. return false;
32. }
33. }
34. }
Ship manager class:
1. import java.util.Iterator;
2. PVector PathfindBoundary1;
3. PVector PathfindBoundary2;
4. class ShipManager {
5. ArrayList<Ship> Ships;
6. ShipManager(float x1, float y1, float x2, float y2) {
7. Ships = new ArrayList<Ship>();
8. PathfindBoundary1 = new PVector(x1,y1);
9. PathfindBoundary2 = new PVector(x2,y2);
10. }
11. void Start() {
12. Ships.add(new Ship("Player",width/2,height/2,1,4,1000,false,loadImage("Spaceship1.png"),5,0.1,1,1,1,2,2,2));
13. }
14. void Manage() {
15. Iterator<Ship> ShipIterator = Ships.iterator();
16. while(ShipIterator.hasNext()) {
17. Ship ItShip = ShipIterator.next();
18. ItShip.Update();
19. if(ItShip.IsAI=true) {
20. ItShip.DisplayHuman();
21. ItShip.MovementHuman();
22. }
23. else {
24. ItShip.DisplayAI();
25. ItShip.DisplayHuman();
26. }
27. if(!ItShip.IsActive()) {
28. ShipIterator.remove();
29. }
30. }
31. }
32. void TargetPainter() {
33. Iterator<Ship> ShipIterator = Ships.iterator();
34. while(ShipIterator.hasNext()) {
35. Ship ItShip = ShipIterator.next();
36. if(ItShip.MouseOver()) {
37. scale(ItShip.Size);
38. noFill();
39. rectMode(CENTER);
40. point(ItShip.Ploc.x,ItShip.Ploc.y);
41. if(ItShip.Team==1) {
42. stroke(0,255,0);
43. }
44. else {
45. stroke(255,0,0);
46. }
47. line(ItShip.Ploc.x+32,ItShip.Ploc.y,ItShip.Ploc.x-32,ItShip.Ploc.y);
48. line(ItShip.Ploc.x,ItShip.Ploc.y+32,ItShip.Ploc.x,ItShip.Ploc.y-32);
49. rect(ItShip.Ploc.x,ItShip.Ploc.y,16,16);
50. scale(1);
51. }
52. }
53. }
54. }
Laser manager class:
1. import java.util.Iterator;
2. class LaserManager {
3. ArrayList<Laser> Lasers;
4. LaserManager() {
5. Lasers = new ArrayList<Laser>();
6. }
7. void Manage() {
8. Iterator<Laser> LaserIterator = Lasers.iterator();
9. while(LaserIterator.hasNext()) {
10. Laser ItLaser = LaserIterator.next();
11. ItLaser.Display();
12. ItLaser.Update();
13. if(!ItLaser.IsActive()) {
14. LaserIterator.remove();
15. }
16. }
17. }
18. }

Expecting TRIPLE_DOT, found 'tempId' And Other Things

[2 Replies]
- 13-Dec-2012 03:16 PM
- Forum: Programming Questions
Hi, I'm a new programmer, and I had a question about some errors I had with this sketch. I've just been experimenting with arrays and class files over the last few days, and am new to some of the syntax. In this program, I'm trying to get a series of rectangles acting as buttons to switch colors when they're pressed using arrays, just to use as a template for some more advanced code. It's not done yet, as I tested it out to see if it would work, got an Expecting TRIPLE_DOT error, and decided that I would fix this bug as well as get some feedback on how to make it better/fix other things before moving on. I looked up the TRIPLE_DOT error, and also tried to find syntax for declaring a single value for an int array inside a constructor online, but found nothing that was helpful/noob friendly.
Anyways, here's my code for the main file:
2. int i;
3. int j;
4. int numButtonX;
5. int numButtonY;
6. Button [][] newButton;
7. boolean [][] on;
8. void setup() {
9. size(500,500);
10. numButtonX = width/50;
11. numButtonY = height/50;
12. newButton = new Button[numButtonX][numButtonY];
13. on = new boolean[numButtonX][numButtonY];
14. for(i=0;i<numButtonX;i++) {
15. for(j=0;j<numButtonY;j++) {
16. newButton[i][j] = new Button(i,j,i*50,j*50);
17. on[i][j] = false;
18. }
19. }
20. }
21. void draw() {
22. for(i=0;i<numButtonX;i++) {
23. for(j=0;j<numButtonY;j++) {
24. newButton.display();
25. }
26. }
27. }
28. void mousePressed() {
29. for(i=0;i<numButtonX;i++) {
30. for(j=0;j<numButtonY;j++) {
31. on[i][j] = false;
32. }
33. }
34. on[round(mouseX/50)][round(mouseY/50)] = true;
35. }
And for the Button class:
2. class Button {
3. int [] id = new int [2];
4. int x;
5. int y;
6. int w = 45;
7. int h = 45;
8. Button(int tempId[0], int tempId[1], int tempX, int tempY) {
9. id[0] = tempId[0];
10. id[1] = tempId[1];
11. x = tempX;
12. y = tempY;
13. }
14. void display() {
15. if(on[id[0]][id[1]]) {
16. fill(255);
17. rect(x,y,w,h);
18. }
19. else if(!on[id[0]][id[1]]) {
20. fill(100);
21. rect(x,y,w,h);
22. }
23. }
24. }
Thanks!

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