CODEWITHSUNDEEP
java
Matthewek
Matthewek

Reputation: 1559

Check if object coordinates meets requirements

I am making game, where I need to check if object`s coordinates meets requirements (Destination coordinates) with permitted +- difference.

Example: 

int x; //current object X coordinate
int y; //current object Y coordinate

int destinationX = 50; //example X destination  value
int destinationY = 0;  //example Y destination value
int permittedDiference = 5;

boolean xCorrect = false;
boolean yCorrect = false;

I am trying to create algorithm, checking

 if (x == destinationX + permittedDifference || x == destinationX - permittedDifference)
 {
     xCorrect = true;
 }

 if (y == destinationY + permittedDifference || y == destinationY - permittedDifference)
 {
     yCorrect = true;
 }

It sounds like most simply way, but maybe there is better one? Will be grateful for some tips.

Upvotes: 0

Views: 86

Answers (1)

Rohit Jain
Rohit Jain

Reputation: 213361

You can make use of Math.abs() method here. Get the absolute difference between x and destinationX, and check whether it's less than or equal to permittedDifference:

xCorrect = Math.abs(x - destinationX) <= permittedDifference;
yCorrect = Math.abs(y - destinationY) <= permittedDifference;

Upvotes: 5

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