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Programming Questions

soapmcbub..

in Programming Questions • 1 year ago

I had a stupid problem. I fixed it. New problem!

Alright, I'm trying to create a first person shooter, and i've got the camera working. Is there a possible substitute for the cameraDirection?

int playerX=50;
int playerY=250;
int playerZ=250;
void setup()
{
size(500,500,P3D);
background(0);
mouseX = 250;
}
void draw()
{
background(0);
beginCamera();
camera(0.0,0.0,0.0,playerX,playerY,playerZ,0.0,1.0,0.0);
rotateY(mouseX/50);
endCamera();

   if(mousePressed)
     {
        if(key == 'w')
     {
       playerZ == cameraDirection;

playerZ = playerZ+1;

}

if(keyPressed)

         {
             if(key == 's')
         {
       playerZ == cameraDirection;

playerZ = playerZ+ -1;

}

}
}

This is my code right now:

int playerX=50;
int playerY=250;
int playerZ=250;
void setup()
{
size(500,500,P3D);
background(0);
mouseX = 250;
}
void draw()
{
background(0);
camera(0.0,0.0,0.0,playerX,playerY,playerZ,0.0,1.0,0.0);
rotateY(mouseX/50);
endCamera();
translate(250,250,250);
box(100);
}

The box is just so I can tell the direction

The post below was an awnser to my earlier question.

Replies(3)

calsign

Re: Draw() acting like setup()

1 year ago

The cubes move when I test it...

BTW: The response rate is generally pretty high in this forum. If you haven't gotten an answer on your previous thread, then either (a) people don't have an answer, (b) people don't understand your question, or (c) they didn't see it, in which case you can bump your message by responding to it.

kivifreak

Re: New problem

1 year ago

This seems to be a sin cos problem.
i simply would rotate all the blocks around you, not the camera :)
Some code of crisr, simply jus change the y coordinate to a z coordinate

    int angle=0;
    int radius = 100;
    void setup() {
      size (770, 770);
    }
    void draw() {
      background (0);
      // get x and y
      float x = cos(radians(angle)) * radius;
      float y = sin(radians(angle)) * radius;
      // headline
      fill(234, 2, 2);
      stroke(234, 2, 2);
      text("Demonstration of sin and cos",
      width/2 - textWidth("Demonstration of sin and cos")/2,
      height / 2 -radius - 30);
      strokeWeight(1);
      line (width/2 - textWidth("Demonstration of sin and cos")/2,
      height / 2 -radius - 27,
      width/2 + textWidth("Demonstration of sin and cos")/2-8,
      height / 2 -radius - 27);
      // line from center to current angle
      strokeWeight(1);
      line (width/2, height / 2,
      width/2 + x, height/2 + y);
      // show middle point / center
      stroke(255, 2, 2);
      strokeWeight(5);
      point (width/2, height / 2);
      // show current angle by adding x and y to center
      stroke(2, 244, 222);
      point (width/2 + x, height/2 + y);
      // show x part
      stroke(2, 244, 2);
      fill(2, 244, 2);
      line (
      width/2, height / 2+ radius + 10,
      width/2 + x, height / 2 + radius + 10);
      text("x = "+x, width/2, height / 2 + radius + 30);
      // show y part
      stroke(30, 120, 222);
      fill(30, 120, 222);
      line (
      width/2 + radius + 10, height / 2,
      width/2 + radius + 10, height / 2 + y );
      text("y = "+y, width/2 + radius + 30, height / 2 + 0);
      // show angle part
      fill(234);
      println(angle);
      text ("angle = "+ angle, width/2-27, height / 2 - 10 );
      // show formula
      fill(234);
      text( "float x = cos(radians(angle)) * radius;", width/2-227, height - 140 );
      text( "float y = sin(radians(angle)) * radius;", width/2-227, height - 120 );
      // ----------------
      // manage the angle
      angle ++;
      if (angle>360)
      {
        angle=0;
      }
    }

soapmcbub..

Re: New problem

1 year ago

I was playing with this. I edited it twice.

This was the simplest of edits:

int angle=0;
    int radius = 100;
    void setup() {
      size (770, 770);
    }
    void draw() {
      background (0);
      // get x and y
      float x = cos(radians(angle)) * radius;
      float y = sin(radians(angle)) * radius;
      // headline
      fill(234, 2, 2);
      stroke(234, 2, 2);
      text("Demonstration of sin and cos",
      width/2 - textWidth("Demonstration of sin and cos")/2,
      height / 2 -radius - 30);
      strokeWeight(1);
      line (width/2 - textWidth("Demonstration of sin and cos")/2,
      height / 2 -radius - 27,
      width/2 + textWidth("Demonstration of sin and cos")/2-8,
      height / 2 -radius - 27);
      // line from center to current angle
      strokeWeight(1);
      line (width/2, height / 2,
      width/2 + x, height/2 + y);
      // show middle point / center
      stroke(255, 2, 2);
      strokeWeight(5);
      point (width/2, height / 2);
      // show current angle by adding x and y to center
      stroke(2, 244, 222);
      point (width/2 + x, height/2 + y);
      // show x part
      stroke(2, 244, 2);
      fill(2, 244, 2);
      line (
      width/2, height / 2+ radius + 10,
      width/2 + x, height / 2 + radius + 10);
      text("x = "+x, width/2, height / 2 + radius + 30);
      // show y part
      stroke(30, 120, 222);
      fill(30, 120, 222);
      line (
      width/2 + radius + 10, height / 2,
      width/2 + radius + 10, height / 2 + y );
      text("y = "+y, width/2 + radius + 30, height / 2 + 0);
      // show angle part
      fill(234);
      println(angle);
      text ("angle = "+ angle, width/2-27, height / 2 - 10 );
      // show formula
      fill(234);
      text( "float x = cos(radians(angle)) * radius;", width/2-227, height - 140 );
      text( "float y = sin(radians(angle)) * radius;", width/2-227, height - 120 );
      // ----------------
      // manage the angle
      angle = mouseX;
    }

On this one I Edited the camera the camera

    int angle=0;
    int radius = 100;
    void setup() {
      size (770, 770,P3D);
    }
    void draw() {
      background (0);
      // get x and y
      float x = cos(radians(angle)) * radius;
      float y = sin(radians(angle)) * radius;
      // headline
      fill(234, 2, 2);
      stroke(234, 2, 2);
      text("Demonstration of sin and cos",
      width/2 - textWidth("Demonstration of sin and cos")/2,
      height / 2 -radius - 30);
      strokeWeight(1);
      line (width/2 - textWidth("Demonstration of sin and cos")/2,
      height / 2 -radius - 27,
      width/2 + textWidth("Demonstration of sin and cos")/2-8,
      height / 2 -radius - 27);
      // line from center to current angle
      strokeWeight(1);
      camera(width/2, height / 2,
      0,width/2 + x, height/2 + y,0,0.0,0.0,1.0);
      // show middle point / center
      stroke(255, 2, 2);
      strokeWeight(5);
      point (width/2, height / 2);
      // show current angle by adding x and y to center
      stroke(2, 244, 222);
      point (width/2 + x, height/2 + y);
      // show x part
      stroke(2, 244, 2);
      fill(2, 244, 2);
      line (
      width/2, height / 2+ radius + 10,
      width/2 + x, height / 2 + radius + 10);
      text("x = "+x, width/2, height / 2 + radius + 30);
      // show y part
      stroke(30, 120, 222);
      fill(30, 120, 222);
      line (
      width/2 + radius + 10, height / 2,
      width/2 + radius + 10, height / 2 + y );
      text("y = "+y, width/2 + radius + 30, height / 2 + 0);
      // show angle part
      fill(234);
      println(angle);
      text ("angle = "+ angle, width/2-27, height / 2 - 10 );
      // show formula
      fill(234);
      text( "float x = cos(radians(angle)) * radius;", width/2-227, height - 140 );
      text( "float y = sin(radians(angle)) * radius;", width/2-227, height - 120 );
      // ----------------
      // manage the angle
      angle = mouseX;
    }

So your looking from the blue dot into the red dot.

I can't see how to make it go forwards and backwards depending on the camera direction.

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Re: Draw() acting like setup()

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