color bullet(window &w, color skycolor, tank &left, tank &right, bool &leftTurn) { // goes through bullets path. returns color of what is hit.
setBrushAndPenColor(w, skycolor); // erasing up top to make sure it doesnt count hitting the text
w.DrawRectangle(0, 0, w.GetWidth(), 200, FILLED);
double dtime = 0.007;
int bulletRadius = 4;
int bulletX, bulletY;
double radianAngle;
tank ¤tTank = leftTurn ? left : right;
int angle = currentTank.getAngle();
if (leftTurn) {
radianAngle = angle * cdPi / 180;
bulletX = currentTank.getXend() + 3;
} else {
radianAngle = ((180 - angle) * cdPi / 180);
bulletX = currentTank.getXend() - 3;
}
int velocity = currentTank.getSpeed();
bulletY = currentTank.getYend() - 3;
leftTurn = !leftTurn;
double xVel = cos(radianAngle) * velocity;
double yVel = sin(radianAngle) * velocity;
double time = 0;
while (w.GetColor(bulletX, bulletY) == skycolor) {
setBrushAndPenColor(w, BLACK);
w.DrawCircle(bulletX, bulletY, bulletRadius, FILLED);
w.UpdateBuffer();
Sleep(1);
setBrushAndPenColor(w, skycolor);
w.DrawCircle(bulletX, bulletY, bulletRadius + 1, FILLED);
time += dtime;
bulletX += xVel * time;
bulletY += -yVel * time + 40 * time * time;
}
return w.GetColor(bulletX, bulletY);
}
