JS Function Every 100 Points - unity3d

Question

I tried writing this on my own, but I failed miserably. Right now I have a script checking the score in my game. I check for every 100 points and change a variable depending on the score, but I'm doing it the wrong and tedious way:
if(gameController.speed == 1) {
if(score >= 200) {
squishyController.gravity = -25;
}
if(score >= 300) {
squishyController.gravity = -50;
}
if(score >= 400) {
squishyController.gravity = -75;
}
if(score >= 500) {
squishyController.gravity = -100;
gamePause = true;
// Spawn First Boss
}
if(score >= 600) {
squishyController.gravity = -125;
}
if(score >= 700) {
squishyController.gravity = -150;
}
}
You get the point. What I want to do in word form is this:
For every 100 points
Change gravity by -25
if the points are 500, 1000, etc
spawn boss
That's it in a nutshell. Here's what I'm thinking it would look like but don't kill me.
for (var i = 0; i += pointValue) {
// Check if points are being added then add to score depending on point value
if(getPoints == true) {
i++;
}
// For every 100 points change the gravity value
if(i >= incrementsOf100) {
gravity = gravity -= 25;
}
// For every 500 points, spawn a boss more difficult than the last
if(i = incrementsOf500) {
bossDifficulty = bossDifficulty += 100; // Just adding this because I will add more hitpoints to boss.
spawnBoss = true;
}
}

Answer 1

How about using the modus operator to find the remainder of dividing by 100, then divide the score minus that remainder to get the number of times you need to change gravity
var score = 550;
var extra = score % 100;
var gravityTimes = (score - extra) / 100;
gravity = gravity -= (25 * gravityTimes);