Growing the branches
Next, as I have been promising for the last 20 pages, we will use all the new C++ techniques we've learned about to draw and move some branches on our tree.
Add the following code outside of the main function. Just to be absolutely clear, I mean before the code for int main():
#include <sstream>
#include <SFML/Graphics.hpp>
using namespace sf;
// Function declaration
void updateBranches(int seed);
const int NUM_BRANCHES = 6;
Sprite branches[NUM_BRANCHES];
// Where is the player/branch?
// Left or Right
enum class side { LEFT, RIGHT, NONE };
side branchPositions[NUM_BRANCHES];
int main()
We just achieved quite a few things with that new code:
- First, we wrote a function prototype for a function called
updateBranches. We can see that it does not return a value (void) and that it takes anintargument calledseed. We will write the function definition soon, and we will then see exactly what it does. - Next, we declare an
intconstant...