Flight Simulator - OpenProcessing

mySketch
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int cols, rows, w=4000, h=2200, s=20;
float fy=0, yrt=-.1, fx=0;
float[][] z;
boolean tilt=false, untilt=false, acc=false, unacc=false;
int xdir, ydir;
float xrate=.5, xamount=0, yrate=.5, yamount=0;
​
void settings() {
  size(1920, 1080, P3D);
}
void setup() {
  size(1920, 1080, P3D);
  background(0);
  cols=w/s;
  rows=h/s;
  z=new float[cols][rows];
}
​
void draw() {
  background(0);
  noFill();
​
  fy+=(yrt+map(yamount, -15, 15, -.5, -.225)+.275);
  fx+=map(xamount, -15, 15, .1, -.1);
  float yoff=fy;
  for (int y=0; y<rows; y++) {
    float xoff=fx;
    for (int x=0; x<cols; x++) {
      z[x][y]=map(noise(xoff, yoff), 0, 1, -100, 100);
      xoff+=.15;
    } 
    yoff+=.15;
  }
​
  if (tilt) {
    Tilt();
  }
  if (untilt) {
    Untilt();
  }
  if (acc) {
    Acc();
  }
  if (unacc) {
    Unacc();
  }
  translate(width/2, height/2);
  rotateX((PI/3)+(radians(yamount/2)));
  rotateY(radians(xamount));
  translate(-w/2, (-h/2)-400);
  for (int y=0; y<rows-1; y++) {
    beginShape(TRIANGLE_STRIP);
    for (int x=0; x<cols; x++) {
      stroke(map(z[x][y], -100, 100, 0, 255));
      //fill(map(z[x][y],-100,100,0,255));
      vertex(x*s, y*s, z[x][y]);
      vertex(x*s, (y+1)*s, z[x][y+1]);
    }
    endShape();
  }
}
​
void Tilt() {
  xamount=constrain(xamount+(xrate*xdir), -15, 15);
}
​
void Untilt() {
  if (xamount==0) {
    untilt=false;
  }
  xamount=constrain(xamount-(xrate*(xdir)), -15, 15);
}
//-.3,-.05
void Acc() {
  //yamount=constrain(yamount+(yrate*ydir),-15,15);
  yamount=constrain(yamount+(yrate*ydir), -15, 15);
}
​
void Unacc() {
  if (yamount==0) {
    unacc=false;
  }
  //yamount=constrain(yamount-(yrate*ydir),-15,15);
  yamount=constrain(yamount-(yrate*ydir), -15, 15);
}
​
void keyPressed() {
  if (keyCode==LEFT) {
    untilt=false;
    tilt=true;
    xdir=1;
  }
  if (keyCode==RIGHT) {
    untilt=false;
    tilt=true;
    xdir=-1;
  }
  if (keyCode==UP) {
    unacc=false;
    acc=true;
    ydir=-1;
  }
  if (keyCode==DOWN) {
    unacc=false;
    acc=true;
    ydir=1;
  }
}
​
void keyReleased() {
  if (keyCode==LEFT || keyCode==RIGHT) {
    tilt=false;
    untilt=true;
  }
  if (keyCode==UP || keyCode==DOWN) {
    acc=false;
    unacc=true;
  }
}