Worlds now hold information about their growing plants

src/inc/world.hpp

@@ -1,4 +1,5 @@
 #include <iostream>
+#include <vector>
 
 // A world struct holds information about a world's dimensions and block data.
 // It makes it easy and efficient to modify and read the properties of every
@@ -12,6 +13,10 @@ struct world
 	unsigned int y_res;
 	unsigned int z_res;
 
+	// A list of plants that are growing.
+
+	std::vector<growing_plant> growing_plants;
+
 	// Get the voxel at the specified coordinates.
 
 	inline voxel get(unsigned int x, unsigned int y, unsigned int z)