C++ and SDL Trouble Creating a STL Vector of a Game Object
- by Jackson Blades
I am trying to create a Space Invaders clone using C++ and SDL. The problem I am having is in trying to create Waves of Enemies. I am trying to model this by making my Waves a vector of 8 Enemy objects.
My Enemy constructor takes two arguments, an x and y offset. My Wave constructor also takes two arguments, an x and y offset. What I am trying to do is have my Wave constructor initialize a vector of Enemies, and have each enemy given a different x offset so that they are spaced out appropriately.
Enemy::Enemy(int x, int y)
{
box.x = x;
box.y = y;
box.w = ENEMY_WIDTH;
box.h = ENEMY_HEIGHT;
xVel = ENEMY_WIDTH / 2;
}
Wave::Wave(int x, int y)
{
box.x = x;
box.y = y;
box.w = WAVE_WIDTH;
box.y = WAVE_HEIGHT;
xVel = (-1)*ENEMY_WIDTH;
yVel = 0;
std::vector<Enemy> enemyWave;
for (int i = 0; i < enemyWave.size(); i++)
{
Enemy temp(box.x + ((ENEMY_WIDTH + 16) * i), box.y);
enemyWave.push_back(temp);
}
}
I guess what I am asking is if there is a cleaner, more elegant way to do this sort of initialization with vectors, or if this is right at all. Any help is greatly appreciated.
