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Ball.cpp
62 lines (50 loc) · 952 Bytes
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Ball.cpp
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#include "Ball.h"
void Ball::reset()
{
float resetX, resetY;
resetX = displayW / 2.0f;
resetY = rand() % displayH;
randomDirection();
setPosition(resetX, resetY);
}
void Ball::update()
{
checkForCollisions();
x += accelX;
y += accelY;
if (x - w / hitboxFactor <= 0 || x + w / hitboxFactor >= displayW)
setBit(DEAD);
if (testBit(DEAD))
{
reset();
clearBit(DEAD);
}
if (testBit(HIT_PADDLE))
{
reverseAcceleration();
clearBit(HIT_PADDLE);
}
calcCenter();
}
void Ball::randomDirection()
{
if (rand() % 2)
{
accelX *= -1;
}
if (rand() % 2)
{
accelY *= -1;
}
}
void Ball::checkForCollisions()
{
if (x - w / hitboxFactor < 0 || x + w / hitboxFactor > displayW)
{
accelX *= -1;
}
if (y - h / hitboxFactor < 0 || y + h / hitboxFactor > displayH)
{
accelY *= -1;
}
}