Physics cursor

/* Physics cursor script by fp, used for most physics parkour worlds. Often combined with the improved Guest cursors script and used with a ratelimit of 0 chars per second. */ keyConfig.cursorUp = ""; keyConfig.cursorDown = ""; keyConfig.cursorLeft = ""; keyConfig.cursorRight = ""; var backpressureX = 0; var backpressureY = 0; var velocityX = 0; var velocityY = 0; var keyLeft = false; var keyRight = false; var keyUp = false; document.addEventListener("keydown", function(e) {

   if (checkKeyPress(e, "UP")) {
       keyUp = true;
   }
   if (checkKeyPress(e, "LEFT")) {
       keyLeft = true;
   }
   if (checkKeyPress(e, "RIGHT")) {
       keyRight = true;
   }

}); document.addEventListener("keyup", function(e) {

   if (checkKeyPress(e, "UP")) {
       keyUp = false;
   }
   if (checkKeyPress(e, "LEFT")) {
       keyLeft = false;
   }
   if (checkKeyPress(e, "RIGHT")) {
       keyRight = false;
   }

});

function tick() {

   backpressureY += velocityY + 0.7;
   velocityY /= 1.2;
   backpressureX += velocityX;
   velocityX /= 1.2;
   if (keyLeft) velocityX -= 2;
   if (keyRight) velocityX += 2;
   if (keyUp) {
       moveCursor("down");
       var char = getChar();
       moveCursor("up");
       if (char != " ") {
           velocityY -= 3;
       }
   }
   if (!keyLeft && !keyRight && Math.abs(velocityX) > 0.5) velocityX = 0;
   if (backpressureY >= 1) {
       backpressureY %= 1;
       moveCursor("down");
       if (getChar() != " ") {
           moveCursor("up");
           velocityY = 0;
       }
   } else if (backpressureY <= -1) {
       backpressureY %= 1;
       moveCursor("up");
       if (getChar() != " ") {
           moveCursor("down");
           velocityY = 0;
       }
   }
   if (backpressureX >= 1) {
       backpressureX %= 1;
       moveCursor("right");
       if (getChar() != " ") {
           velocityX = 0;
           moveCursor("left");
       }
   } else if (backpressureX <= -1) {
       backpressureX %= 1;
       moveCursor("left");
       if (getChar() != " ") {
           velocityX = 0;
           moveCursor("right");
       }
   }

}; setInterval(tick, 1000 / 30);

/* */