John code test

import org.qscript.*; //<>// //<>//
import org.qscript.eventsonfire.*;
import org.qscript.events.*;
import org.qscript.editor.*;
import org.qscript.operator.*;
import org.qscript.errors.*;

String input = "";
int main_calc_state = 1;

float num1;
float num2;
float temp_num;
float ans;
float trig_ans = 0;
boolean showAns = false;

float angle1 = 0;
float angle2 = 0;
String side_a;
String side_b;

int calc_state = 0;
int trig_calc_state = 0;
int trig_calc_state_denoter = 0;

String trig_ans_error = "Side is less than zero.";

boolean flag = false;
boolean calc_flag = false;
boolean adv_trig_calc_flag = false;

int x = width/10;
int y = height/10;

String a = "";
String b = "";
int c = 0;
String trig_c  = "";

String[] pres1 = match(input, "\\*");
String[] pres2 = match(input, "/");
String[] pres3 = match(input, "-");
String[] pres4 = match(input, "\\+");
String[] pres5 = match(input, "^");

//______________________________________// Above is setup for calculator.
String input1 = "";
boolean check=false;
int deltax=0;
int deltay=0;
int delx=0;
int dely=0;
int inX;
int inY;
int whiteout=0;
boolean check2=true;
float[] x_coord = new float[10000];
float[] y_coord = new float[10000];
float[] tempy = new float[10000];
String LOG;
String COS;
String SIN;
String TAN;
Boolean test = false;

void setup() {
  size(768, 1024);
  background(255);
  frameRate(60);
  fill(0);
  boolean checker=true;
  if (checker==true) {
    check = true;
    checker=false;
  }
  for (int i=0; i<=2999; i++) {
    x_coord[i]=0;
  }
  for (int i=0; i<=2999; i++) {
    y_coord[i]=0;
  }
}

void draw() {
  if (main_calc_state == 1) {
    main_operation_draw();
    number_draw();
    fill(150);
    rect(0, 900, 768, 74);
    fill(0);
    if (showAns) {
      text(ans, 50, 945);
    } else {
      text(input, 300, 945);
      text(num1, 50, 945);
    }
  }
  if (main_calc_state == 2) {
    println(a, b, trig_c, flag, calc_flag, adv_trig_calc_flag);
  }
  if (main_calc_state == 3) {
    graph_operation_draw();
  }
  fill(0);
  rect(0, 974, 768/4, 50);
  rect(192, 974, 768/4, 50);
  rect(192*2, 974, 768/4, 50);
  rect(192*3, 974, 768/4, 50);
  fill(255);
  textSize(20);
  text("Standard Calculator", 10, 1000);
  text("Trig Calculator", 307, 1000);
  text("Graphing Calculator", 560, 1000);
  if (mouseX >= 0 && mouseX < 270 && mouseY >= 974) {
    main_calc_state = 1;
  }
  if (mouseX >= 270 && mouseX < 520 && mouseY >= 974) {
    main_calc_state = 2;
  }
  if (mouseX >= 520 && mouseX <= 768 && mouseY >= 974) {
    main_calc_state = 3;
  }
}

void mousePressed() {
  if (main_calc_state == 1) {
    standard_calc_draw();
  }
  if (main_calc_state == 2) {
    trig_operation_draw();
  }
}

void main_operation_draw() {
  int x = width/10;
  int y = height/10;
  background(255);
  fill(0);
  textSize(25);
  text("n^2", 3*x + 30, y + 40);
  text("sqrt", 4*x + 30, y +40);
  textSize(40);
  text("C", 8*x + 30, y*0 + 40);
  text("Ans", 8*x + 30, y*2 + 40);
  text("=", 8*x + 30, y*3 + 40);
  text("+", 3*x + 30, y*0 + 40);
  text("-", 4*x + 30, y*0 + 40);
  text("*", 5*x + 30, y*0 + 40);
  text("/", 6*x + 30, y*0 + 40);
}

void number_draw() {
  int x = width/10;
  int y = height/10;
  text("1", 0*x + 30, y*0 + 40);
  text("2", 0*x + 30, y + 40);
  text("3", 0*x + 30, y*2 + 40);
  text("4", 0*x + 30, y*3 + 40);
  text("5", 0*x + 30, y*4 + 40);
  text("6", x + 30, y*0 + 40);
  text("7", x + 30, y + 40);
  text("8", x + 30, y*2 + 40);
  text("9", x + 30, y*3 + 40);
  text("0", x + 30, y*4 + 40);
}

void trig_operation_draw() {
  background(255);
  textSize(30);
  fill(0);
  text("What type of trig question do you need help with?", 20, 60);
  text("Pythagoras", 30, 200);
  text("Sine Rule", 30, 300);
  text("Cosine Rule", 30, 400);
  if (mouseX > 20 && mouseX <= 280 && mouseY > 850 && mouseY <= 950) {
    trig_calc_state = 0;
  }
  if (trig_calc_state == 0) {
    if (mouseX > 20 && mouseX < 220) {
      if (mouseY > 150 && mouseY <= 250) {
        trig_calc_state = 1;
        trig_calc_state_denoter = 0;
      }
      if (mouseY > 250 && mouseY <= 350) {
        trig_calc_state = 2;
        trig_calc_state_denoter = 1;
      }
      if (mouseY > 350 && mouseY <= 450) {
        trig_calc_state = 3;
        trig_calc_state_denoter = 2;
      }
    }
    a = "";
    b = "";
    c = 0;
    trig_c = "";
    flag = false;
    calc_flag = false;
  }
  if (trig_calc_state == 1) {
    background(255);
    fill(0);
    text("Which side are you attempting to find?", 110, 60);
    text("Hypotnuse", 170, 200);
    text("Shorter Side", 420, 200);
    text("BACK TO MENU", 30, 900);
    if (mouseY > 150 && mouseY <= 250) {
      if (mouseX > 120 && mouseX <= 270) {
        trig_calc_state = 4;
      }
      if (mouseX > 370 && mouseX <= 520) {
        trig_calc_state = 5;
      }
    }
    if (mouseX > 10 && mouseX <= 150) {
      if (mouseY > 850 && mouseY <= 950) {
        trig_calc_state = 0;
      }
    }
  }
  if (trig_calc_state == 2 || trig_calc_state == 3) {
    background(255);
    fill(0);
    text("Do you want to solve for a side or angle?", 100, 60);
    text("Side", 220, 200);
    text("Angle", 450, 200);
    text("BACK TO MENU", 30, 900);
    if (mouseY > 150 && mouseY <= 250) {
      if (mouseX > 150 && mouseX <= 300) {
        trig_calc_state = 6;
      }
      if (mouseX > 400 && mouseX <= 550) {
        trig_calc_state = 7;
      }
      if (mouseX > 10 && mouseX <= 150) {
        if (mouseY > 850 && mouseY <= 950) {
          trig_calc_state = 0;
        }
      }
    }
  }
  if (trig_calc_state == 4) {
    background(255);
    fill(0);
    text("Press Enter after you type your number.", 90, 600);
    number_draw();
    text("Enter your known sides:", 200, 60);
    text("Side A:", 200, 150);
    text("Side B:", 200, 200);
    number_operation();
    c = parseInt(a) * parseInt(a) + parseInt(b) * parseInt(b);
    trig_ans = sqrt(c);
    if (a != "" && b != "") {
      text("Missing Side is:", 200, 280);
      text(trig_ans, 420, 280);
    }
    text(a, 350, 150);
    text(b, 350, 200);
    text("BACK TO MENU", 30, 900);
  }
  if (trig_calc_state == 5) {
    background(255);
    fill(0);
    text("Press Enter after you type your number.", 90, 600);
    number_draw();
    text("Enter your known sides:", 200, 60);
    text("Hypotnuse:", 200, 150);
    text("Side B:", 200, 200);
    number_operation();
    c = parseInt(a) * parseInt(a) - parseInt(b) * parseInt(b);
    trig_ans = sqrt(c);
    if (a != "" && b != "") {
      text("Missing Side is:", 200, 280);
      if (c <= 0) {
        text(trig_ans_error, 430, 280);
      } else {
        text(trig_ans, 430, 280);
      }
    }
    text(a, 400, 150);
    text(b, 350, 200);
    text("BACK TO MENU", 30, 900);
  }
  if (trig_calc_state == 6 && trig_calc_state_denoter == 1) {
    background(255);
    fill(0);
    text("Press Enter after you type your number.", 90, 600);
    number_draw();
    text("Enter your two known angles and side:", 120, 60);
    text("Opp. Angle:", 200, 150);
    text("Side 2:", 200, 200);
    text("Angle 2:", 200, 250);
    number_operation();
    side_a = Integer.parseInt(a);
    trig_ans = parseInt(a) * parseInt(b)/parseInt(trig_c);
    text(a, 400, 150);
    text(b, 350, 200);
    text(trig_c, 350, 250);
    text("BACK TO MENU", 30, 900);
  }
}

void standard_calc_draw() {
  String[] pres1 = match(input, "\\*");
  String[] pres2 = match(input, "/");
  String[] pres3 = match(input, "-");
  String[] pres4 = match(input, "\\+");
  String[] pres5 = match(input, "^");
  if (mouseX >= 0 && mouseX < 78) {
    if (mouseY >= 0 && mouseY <  70) {
      input = input + 1;
    } else if (mouseY >=  70 && mouseY < 102 + 70) {
      input = input + 2;
    } else if (mouseY >=  70 + 102 && mouseY < 102*2 + 70) {
      input = input + 3;
    } else if (mouseY >=  70 + 102*2 && mouseY < 102*3 + 70) {
      input = input + 4;
    } else if (mouseY >=  70 + 102*3 && mouseY < 102*4 + 70) {
      input = input + 5;
    }
    showAns = false;
  } else if (mouseX >= 78 && mouseX < 78*2) {
    if (mouseY >= 0 && mouseY <  70) {
      input = input + 6;
    } else if (mouseY >=  70 && mouseY < 102 + 70) {
      input = input + 7;
    } else if (mouseY >=  70 + 102 && mouseY < 102*2 + 70) {
      input = input + 8;
    } else if (mouseY >=  70 + 102*2 && mouseY < 102*3 + 70) {
      input = input + 9;
    } else if (mouseY >=  70 + 102*3 && mouseY < 102*4 + 70) {
      input = input + 0;
    }
    showAns = false;
  } else if (mouseX >= 78*3 && mouseX < 78*4) {
    if (mouseY >= 0 && mouseY < 70) {
      if (num1 == 0) {
        num1 = parseInt(input);
      } else if (calc_state == 5) {
      } else if (input != "") {
        temp_num = parseInt(input.substring(1));
      } else {

        if (pres1 == null && pres2 == null && pres3 == null && pres4 == null && pres5 == null) {
          num1 = temp_num + num1;
        } else {
          operation_input_result();
        }
      }
      input = "+";
      calc_state = 1;
      showAns = false;
    } else if (mouseY >= 70 && mouseY < 70 + 102) {
      if (num1 == 0) {
        if (ans == 0) {
          num1 = parseInt(input) * parseInt(input);
        } else {
          num1 = ans * ans;
        }
      } else {
        if (input != "") {
          temp_num = parseInt(input.substring(1));
        }
        if (pres1 == null && pres2 == null && pres3 == null && pres4 == null && pres5 == null) {
          num1 = num1 * num1;
        } else {
          operation_input_result();
        }
      }
      if (num1 < 0) {
        num1 = abs(num1);
      }
      input = "";
      ans = 0;
      text(num1, 50, 995);
    }
  } else if (mouseX >= 78*4 && mouseX < 78*5) {
    if (mouseY >= 0 && mouseY < 70) {
      if (num1 == 0) {
        num1 = parseInt(input);
      } else {
        temp_num = parseInt(input.substring(1));
        if (pres1 == null && pres2 == null && pres3 == null && pres4 == null && pres5 == null) {
          num1 = temp_num * num1;
        } else if (calc_state == 5) {
        } else {
          operation_input_result();
        }
      }
      input = "-";
      calc_state = 2;
      showAns = false;
    } else if (mouseY >= 70 && mouseY < 70 + 102) {
      if (num1 == 0) {
        if (ans == 0) {
          num1 = sqrt(parseInt(input));
        } else {
          num1 = sqrt(ans);
        }
      } else {
        if (input != "") {
          temp_num = parseInt(input.substring(1));
        }
        if (pres1 == null && pres2 == null && pres3 == null && pres4 == null && pres5 == null && num1 >=0) {
          num1 = sqrt(num1);
        } else {
          if (num1 < 0) {
            num1 = abs(num1);
            num1 = sqrt(num1);
          } else {
            operation_input_result();
          }
        }
      }

      input = "";
      showAns = false;
      ans = 0;
      text(num1, 50, 995);
    }
  } else if (mouseX >= 78*5 && mouseX < 78*6) {
    if (mouseY >= 0 && mouseY < 70) {
      if (num1 == 0) {
        num1 = parseInt(input);
      } else {
        temp_num = parseInt(input.substring(1));
        if (pres1 == null && pres2 == null && pres3 == null && pres4 == null && pres5 == null) {
          num1 = temp_num * num1;
        } else if (calc_state == 5) {
        } else {
          operation_input_result();
        }
      }
      input = "*";
      calc_state = 3;
      showAns = false;
    }
  } else if (mouseX >= 78*6 && mouseX < 78*7) {
    if (mouseY >= 0 && mouseY < 70) {
      if (num1 == 0) {
        num1 = parseInt(input);
      } else {
        temp_num = parseInt(input.substring(1));
        if (pres1 == null && pres2 == null && pres3 == null && pres4 == null && pres5 == null) {
          num1 = num1 / temp_num;
        } else if (calc_state == 5) {
        } else {
          operation_input_result();
        }
      }
      input = "/";
      calc_state = 4;
      showAns = false;
    }
  } else if (mouseX >= 77*8 && mouseX < 77*9) {
    if (mouseY >= 70 + 102*2 && mouseY < 70 + 102*3) {
      if (num1 == 0) {
        ans = parseInt(input);
        showAns = true;
      } else if (input != "") {
        num2 = parseInt(input.substring(1));
        input = input + "=";
        if (calc_state == 1) {
          ans = num1 + num2;
        }
        if (calc_state == 2) {
          ans = num1 - num2;
        }
        if (calc_state == 3) {
          ans = num1 * num2;
        }
        if (calc_state == 4) {
          ans = num1 / num2;
        }
        showAns = true;
        input = "";
        num1 = 0;
        num2 = 0;
        calc_state = 0;
      } else {
        ans = num1;
      }
    }
    if (mouseY >= 0 && mouseY < 70) {
      input = "";
      num1 = 0;
      num2 = 0;
      temp_num = 0;
      ans = 0;
    }
    if (mouseY >= 70 + 102 && mouseY < 70 + 102*2) {
      num1 = ans;
      showAns = false;
      ans = 0;
      calc_state = 5;
    }
  }
}

void number_operation_adv_trig() {
    if (mouseX >= 0 && mouseX < 78) {
      if (mouseY >= 0 && mouseY <  70) {
        trig_c = trig_c + 1;
      } else if (mouseY >=  70 && mouseY < 102 + 70) {
        trig_c = trig_c + 2;
      } else if (mouseY >=  70 + 102 && mouseY < 102*2 + 70) {
        trig_c = trig_c + 3;
      } else if (mouseY >=  70 + 102*2 && mouseY < 102*3 + 70) {
        trig_c = trig_c + 4;
      } else if (mouseY >=  70 + 102*3 && mouseY < 102*4 + 70) {
        trig_c = trig_c + 5;
      }
    } else if (mouseX >= 78 && mouseX < 78*2) {
      if (mouseY >= 0 && mouseY <  70) {
        trig_c = trig_c + 6;
      } else if (mouseY >=  70 && mouseY < 102 + 70) {
        trig_c = trig_c + 7;
      } else if (mouseY >=  70 + 102 && mouseY < 102*2 + 70) {
        trig_c = trig_c + 8;
      } else if (mouseY >=  70 + 102*2 && mouseY < 102*3 + 70) {
        trig_c = trig_c + 9;
      } else if (mouseY >=  70 + 102*3 && mouseY < 102*4 + 70) {
        trig_c = trig_c + 0;
      }
    }
}

void number_operation() {
  if (calc_state == 6) {
    a = side_a;
  }
  if (flag == false) {
    text("Enter numbers:", 470, 150);
    if (mouseX >= 0 && mouseX < 78) {
      if (mouseY >= 0 && mouseY <  70) {
        a = a + 1;
      } else if (mouseY >=  70 && mouseY < 102 + 70) {
        a = a + 2;
      } else if (mouseY >=  70 + 102 && mouseY < 102*2 + 70) {
        a = a + 3;
      } else if (mouseY >=  70 + 102*2 && mouseY < 102*3 + 70) {
        a = a + 4;
      } else if (mouseY >=  70 + 102*3 && mouseY < 102*4 + 70) {
        a = a + 5;
      }
    } else if (mouseX >= 78 && mouseX < 78*2) {
      if (mouseY >= 0 && mouseY <  70) {
        a = a + 6;
      } else if (mouseY >=  70 && mouseY < 102 + 70) {
        a = a + 7;
      } else if (mouseY >=  70 + 102 && mouseY < 102*2 + 70) {
        a = a + 8;
      } else if (mouseY >=  70 + 102*2 && mouseY < 102*3 + 70) {
        a = a + 9;
      } else if (mouseY >=  70 + 102*3 && mouseY < 102*4 + 70) {
        a = a + 0;
      }
    }
  }
  if (flag == true && calc_flag == false) {
    if (mouseX >= 0 && mouseX < 78) {
      if (mouseY >= 0 && mouseY <  70) {
        b = b + 1;
      } else if (mouseY >=  70 && mouseY < 102 + 70) {
        b = b + 2;
      } else if (mouseY >=  70 + 102 && mouseY < 102*2 + 70) {
        b = b + 3;
      } else if (mouseY >=  70 + 102*2 && mouseY < 102*3 + 70) {
        b = b + 4;
      } else if (mouseY >=  70 + 102*3 && mouseY < 102*4 + 70) {
        b = b + 5;
      }
    } else if (mouseX >= 78 && mouseX < 78*2) {
      if (mouseY >= 0 && mouseY <  70) {
        b = b + 6;
      } else if (mouseY >=  70 && mouseY < 102 + 70) {
        b = b + 7;
      } else if (mouseY >=  70 + 102 && mouseY < 102*2 + 70) {
        b = b + 8;
      } else if (mouseY >=  70 + 102*2 && mouseY < 102*3 + 70) {
        b = b + 9;
      } else if (mouseY >=  70 + 102*3 && mouseY < 102*4 + 70) {
        b = b + 0;
      }
    }
  }
  if (calc_flag == true) {
    number_operation_adv_trig();
  }
    keyPressed();
}

void keyPressed() {
  if (keyCode == ENTER) {
    if (b == "") {
      flag = true;
    }
    else if (trig_c == "") {
      calc_flag = true;
      }
    else if (trig_c != "" && b != "") {
      adv_trig_calc_flag = true;
    }
    }
}

void operation_input_result() {
  String[] pres1 = match(input, "\\*");
  String[] pres2 = match(input, "/");
  String[] pres3 = match(input, "-");
  String[] pres4 = match(input, "\\+");
  String[] pres5 = match(input, "^");
  if (pres1 != null) {
    num1 = temp_num * num1;
  } else if (pres2 != null) {
    num1 = num1 / temp_num;
  } else if (pres3 != null) {
    num1 = num1 - temp_num;
  } else if (pres4 != null) {
    num1 = num1 + temp_num;
  } else if (pres5 != null) {
    num1 = num1 * num1;
  }
}

void graph_operation_draw() {
  background(255);
  float[] xline = new float[9];
  float[] yline = new float[9];

  for (int i=0; i<=8; i++) {
    yline[i] = (40-i*10);
    fill(0);
    textSize(10);
    fill(whiteout);
    text(yline[i], (width/2 + 20)+delx, 102.4+102.4*i+dely);
  }

  for (int i=0; i<=8; i++) {
    xline[i] = ((-20+i*10));
    fill(0);
    textSize(10);
    text(xline[i], 179.2+102.4*i+delx, (height/2)+dely-5);
  }
  for (int i =0; i<=9; i++) {
    if (keyPressed && check2==true) {
      if (key == '1' || key == '2' || key == '3' || key == '4' || key == '5' || key == '6' ||
        key == '7' || key == '8' || key == '9' || key == '0' || key == '^' || key == 'x' ||
        key == '*' || key == '/' || key == '+' || key == '-' || key == '(' || key == ')' || key == '.') {
        input1 = input1+key;
        check2 = false;
      }
      if (key == BACKSPACE && check2==true && input1.length()>0) {
        input1 = input1.substring(0, input1.length()-1);
        check2 = false;
      }
    }
  }
  textSize(20);
  LOG = "Ln("+input1+")";
  COS = "cos("+input1+")";
  SIN = "sin("+input1+")";
  TAN = "tan("+input1+")";
  text(LOG, 50, 100);
  text(SIN, 50, 150);
  text(COS, 50, 200);
  text(TAN, 50, 250);
  if (mouseX>10 && mouseX<90 && mouseY>80 && mouseY<=100 && mousePressed==true) {
    for (int i=0; i<=9999; i++) {
      x_coord[i]=(i-3000)*0.01;
    }
    for (int i=0; i<=9999; i++) {
      tempy[i] = (function(input1, x_coord[i]));
    }
    for (int i=0; i<=9999; i++) {
      y_coord[i] = (logfunction(tempy[i]));
    }
    for (int i=0; i<=9999; i++) {
      Point[] p = new Point[10000];
      p[i] = new Point((x_coord[i]/0.1024+384+delx), dely+512-y_coord[i]/0.1024);
      p[i].display();
      if (mousePressed ==true && mouseX == (x_coord[i]/0.1024+384+delx)) {
        p[i].textualise();
      }
    }
  }

  if (mouseX>10 && mouseX<90 && mouseY>130 && mouseY<=150 && mousePressed==true) {
    for (int i=0; i<=9999; i++) {
      x_coord[i]=(i-3000)*0.01;
    }
    for (int i=0; i<=9999; i++) {
      tempy[i] = (function(input1, x_coord[i]));
    }
    for (int i=0; i<=9999; i++) {
      y_coord[i] = (sinfunction(tempy[i]));
    }
    for (int i=0; i<=9999; i++) {
      Point[] p = new Point[10000];
      p[i] = new Point((x_coord[i]/0.1024+384+delx), dely+512-y_coord[i]/0.1024);
      p[i].display();
      if (mousePressed ==true && mouseX == (x_coord[i]/0.1024+384+delx)) {
        p[i].textualise();
      }
    }
  }
  if (mouseX>10 && mouseX<90 && mouseY>180 && mouseY<=200 && mousePressed==true) {
    for (int i=0; i<=9999; i++) {
      x_coord[i]=(i-3000)*0.01;
    }
    for (int i=0; i<=9999; i++) {
      tempy[i] = (function(input1, x_coord[i]));
    }
    for (int i=0; i<=9999; i++) {
      y_coord[i] = (cosfunction(tempy[i]));
    }
    for (int i=0; i<=9999; i++) {
      Point[] p = new Point[10000];
      p[i] = new Point((x_coord[i]/0.1024+384+delx), dely+512-y_coord[i]/0.1024);
      p[i].display();
      if (mousePressed ==true && mouseX == (x_coord[i]/0.1024+384+delx)) {
        p[i].textualise();
      }
    }
  }
  text("Reset Graph to Origin", 550, 50);
  if (mouseX>520 && mouseX<768 && mouseY>0 && mouseY<=80 && mousePressed==true) {
    delx = 0;
    dely = 0;
  }

  if (mouseX>10 && mouseX<90 && mouseY>230 && mouseY<=250 && mousePressed==true) {
    for (int i=0; i<=9999; i++) {
      x_coord[i]=(i-3000)*0.01;
    }
    for (int i=0; i<=9999; i++) {
      tempy[i] = (function(input1, x_coord[i]));
    }
    for (int i=0; i<=9999; i++) {
      y_coord[i] = (tanfunction(tempy[i]));
    }
    for (int i=0; i<=9999; i++) {
      Point[] p = new Point[10000];
      p[i] = new Point((x_coord[i]/0.1024+384+delx), dely+512-y_coord[i]/0.1024);
      p[i].display();
      if (mousePressed ==true && mouseX == (x_coord[i]/0.1024+384+delx)) {
        p[i].textualise();
      }
    }
  }
  if (key == ENTER && check2==true) {
    for (int i=0; i<=9999; i++) {
      x_coord[i]=(i-3000)*0.01;
    }

    for (int i=0; i<=9999; i++) {
      y_coord[i] = (function(input1, x_coord[i]));
    }


    check2=false;
  }
  for (int i=0; i<=9999; i++) {
    Point[] p = new Point[10000];
    p[i] = new Point((x_coord[i]/0.1024+384+delx), dely+512-y_coord[i]/0.1024);
    p[i].display();
    if (mousePressed ==true && mouseX == (x_coord[i]/0.1024+384+delx)) {
      p[i].textualise();
    }
  }
  fill(0);
  textSize(20);
  text(input1, 50, 50);
  if (mousePressed && check == true) {
    inX = mouseX;
    inY = mouseY;
    check=false;
  }
  if (delx<=-234) {
    whiteout = 255;
  }
  if (delx>-234) {
    whiteout =0;
  }
  strokeWeight(5);
  stroke(whiteout);
  line((width/2)+delx, 0, (width/2)+delx, height);
  stroke(0);
  line(150, (height/2)+dely, width, (height/2)+dely);
  strokeWeight(2);
  line(150, 0, 150, height);
}

void mouseReleased() {
  deltax = mouseXdelta(inX);
  deltay = mouseYdelta(inY);
  check =true;
  delx=delx+deltax;
  dely=dely+deltay;
  deltax=0;
  deltay=0;
}

void keyReleased() {
  check2=true;
}

int mouseXdelta(int x) {
  int diff=0;

  diff = x - mouseX;

  return diff;
}

int mouseYdelta(int y) {
  int diff=0;

  diff = y - mouseY;
  return diff;
}

float function(String function, float Xcord) {
  String func = function;
  String func1 = "";
  float Fy=0;
  if (func == "x" || func == "X") {
    func1 = func.replace("x", str(Xcord));
    Fy = float(func1);
  } else if (func == "" || func == "0" || func == "1" || func == "2" || func == "3" || func == "5" || func == "6"
    || func == "7" || func == "8" || func == "9") {
    Fy=0;
  } else {
    func1 = func.replace("x", str(Xcord));
    Result func2 = (Solver.evaluate(func1));
    Fy = func2.answer.toFloat();
  }
  return Fy;
}

float logfunction(float Ycord) {
  float Fy = -1000;
  float y = Ycord;
  if (y>0) {
    Fy = log(y);
  }
  return Fy;
}

float sinfunction(float Ycord) {
  float Fy = -1000;
  float y = Ycord;
  Fy = sin(y);
  return Fy;
}

float cosfunction(float Ycord) {
  float Fy = -1000;
  float y = Ycord;
  Fy = cos(y);
  return Fy;
}

float tanfunction(float Ycord) {
  float Fy = -1000;
  float y = Ycord;
  if (Ycord != 3.14/2) {
    Fy = tan(y);
  }
  return Fy;
}