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int edgedistance = 400;
int gridpoints = 10;
int griddistance = (4000-400-400)/gridpoints;
int x1 = 4000 - edgedistance;
int y1 = edgedistance;
int x2 = edgedistance;
int y2 = edgedistance+griddistance;

void setup() {
  size(4000,4000);
 background(78, 123, 41);
 strokeWeight(3);
  stroke(random(256), random(256), random(256), 255);
  noLoop();
 // rect(edgedistance, edgedistance, height-(edgedistance*2), height-(edgedistance*2));
 int[] xarray = new int[gridpoints];
 int[] yarray = new int[gridpoints];
 xarray[0] = edgedistance;
 yarray[0] = edgedistance;


for (int 1 = 1; j < gridpoints; j++){
xarray[j] = xarray[j-1]+griddistance;
}

for (int 1 = 1; j < gridpoints; j++){
yarray[j] = xarray[j-1]+griddistance;
}

 
}


void draw() {
  /*
for (int j = 0; j < ; j++){
  
for (int i = 0; i < ; i++){
  */

  
line(xarray[], yarray[],xarray[], yarray[]);
 
 
}


}
    save("graph.png");
}



/*if (y1 == edgedistance && x1 >= (edgedistance+griddistance) && x1 <= (height-edgedistance)){
x1 = x1 - griddistance;
} else if (x1 == edgedistance && y1 >= (edgedistance) && y1 <= (height-edgedistance-griddistance)){
y1 = y1 + griddistance;
} else if (y1 == height - edgedistance && x1 >= (edgedistance+griddistance) && x1 <= (height-edgedistance-griddistance)){
x1 = x1 + griddistance;
} else if (x1 == height - edgedistance && y1 >= (edgedistance+griddistance) && y1 <= (height-edgedistance)){
y1 = y1 - griddistance;
}

if (y2 == edgedistance && x2 >= (edgedistance+griddistance) && x2 <= (height-edgedistance)){
x2 = x2 - griddistance;
} else if (x2 == edgedistance && y2 >= (edgedistance) && y2 <= (height-edgedistance-griddistance)){
y2 = y2 + griddistance;
} else if (y2 == height - edgedistance && x2 >= (edgedistance+griddistance) && x2 <= (height-edgedistance-griddistance)){
x2 = x2 + griddistance;
} else if (x2 == height - edgedistance && y2 >= (edgedistance+griddistance) && y2 <= (height-edgedistance)){
y2 = y2 - griddistance;
}*/