ELEC2645 (2018/19) / el17tc

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Show/hide line numbers Vector2Di.cpp Source File

Vector2Di.cpp

00001 #include "Vector2Di.h"
00002 
00003 // Vector manipulation functions
00004 // they are pretty self explanatory (very basic)
00005 Vector2Di Vector2Di::operator -() { 
00006     Vector2Di negV = {x*-1, y*-1};
00007     return negV;
00008 }
00009 
00010 void Vector2Di::addVector(Vector2Di v) {
00011     int newX = x + v.x;
00012     int newY = y + v.y;
00013     x = newX;
00014     y = newY;
00015 }
00016 
00017 void Vector2Di::rotateVector(double angle) {
00018     double newX = (x * cos(angle)) + (y * -sin(angle));
00019     double newY = (x * sin(angle)) + (y * cos(angle));
00020     x = static_cast<int>(newX);
00021     y = static_cast<int>(newY);  
00022 }
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