WHEAT
Wheat is a vital component of the game; eating all of it will progress the player to the next level or the end of the game. Wheat interacts with three systems: the player, the wheat sense ability, and the horde.
While colliding with the player, the health of the wheat diminishes at a rate of 1, plus a boost if there are emus in the flock. This decision promotes the player collecting other emus and colliding with the wheat.
One of the subsystems of the player, the wheat sense ability, also interacts with the wheat. The wheat sense ability gets all the wheat in the level and points toward the nearest wheat. This decision helps players find all of the wheat in the level so that they may progress without searching the entirety of the level for one or two small pieces of wheat.
If the horde collides with the wheat, the health of the wheat diminishes at a rate of 0.1, plus a boost for each emu in the flock. The horde's rate is much lower than the player's because the wheat tracks all collisions with it. Therefore, if the player and a horde emu collide with the wheat, there's already a 1.1 rate applied to the diminishment of the wheat. As the horde gets larger, there are additional collisions along with a considerable boost for each emu in the flock.
WHEAT HEALTH BAR
The wheat health bar shows the player how much health the wheat has left. It starts hidden, but once the wheat takes any damage, it will appear for the player above the associated wheat. As damage gets done to the wheat, the health bar gets smaller, until eventually, the wheat has 0 health left, where the wheat and the health bar get destroyed.