There is no such code I'm aware of, however there are three possible answers:

1. The random number generator hates you. This is a known phenomenon dating all the way back to early dice games. simply put: the random number generator will seem to actively attempt to destroy you. Solution: Other than making a shrine to the RNG gods none.

2. Selective memory. You are simply remembering the worst times you got griefed, and not the times creepers spawned way out in the open so you could take them on easily.

3. The first two situations sound like you were in an enclosed, partially lit cave. this increases the spawn chance in other nearby areas. as such mobs using the "Death from above" routine is common, especially in abandoned mineshafts. the enderman case just sounds like bad luck (or see number 1)

I'm not aware of any there being any "infrastructure targeting" code in Minecraft.

The situations you describe however, seem to have three possible explanations:

1. The random number generator hates you. This is a known phenomenon dating all the way back to early dice games. Simply put, the random number generator appears to actively work to destroy you. Short of making a shrine to the RNG gods, no solution to this problem is known.

2. Selective memory. You are simply remembering the times you were horribly griefed more vividly than the times mobs spawned out in the open where you could easily take them on, even if they are equally common.

3. Death from above. The first two situations you gave sound like you were in an enclosed, partially lit cave. This type of environment would increase the spawn chance in other nearby areas. In such a scenario, mobs using "Death from Above" tactics is for more likely, especially in abandoned mine-shafts. The Enderman case you describe just sounds like bad luck (See point 1).

There is no such code I'm aware of, however there are two possible answers:

1. The random number generator hates you. This is a known phenomenon dating all the way back to early dice games. simply put: the random number generator will seem to actively attempt to destroy you. Solution: Other than making a shrine to the RNG gods none.

2. Selective memory. You are simply remembering the worst times you got griefed, and not the times creepers spawned way out in the open so you could take them on easily.

3. The first two situations sound like you were in an enclosed, partially lit cave. this increases the spawn chance in other nearby areas. as such mobs using the "Death from above" routine is common, especially in abandoned mineshafts. the enderman case just sounds like bad luck (or see number 1)

There is no such code I'm aware of, however there are three possible answers:

1. The random number generator hates you. This is a known phenomenon dating all the way back to early dice games. simply put: the random number generator will seem to actively attempt to destroy you. Solution: Other than making a shrine to the RNG gods none.

2. Selective memory. You are simply remembering the worst times you got griefed, and not the times creepers spawned way out in the open so you could take them on easily.

3. The first two situations sound like you were in an enclosed, partially lit cave. this increases the spawn chance in other nearby areas. as such mobs using the "Death from above" routine is common, especially in abandoned mineshafts. the enderman case just sounds like bad luck (or see number 1)