[Cmd] Path Trajectory (1.8 Archery Course)

For the Bats,  I used /execute @e[type=Arrow] ~ ~ ~ summon Bat ~ ~ ~-2 {NoAI:true}  The NoAI NBT makes the mob, in this case a bat, have very little AI, causing the mob to float in the air.

The reset button just runs a simple /kill @e[type=!Player]  The !Player kills everything EXCEPT the player, it has come in handy many times.  I teleport the mobs far away right before the command, so you dont see the death particles.  

The hide button runs /tp @e[type=Bat,r=75] ~ ~100 ~  This teleports all the bats 100 blocks above their position.  The type=Bat is specifying that only bats will be teleported away, not the player.  The r=75 is only running the command in a radius of 75, so you can not hide the bats twice.  

The show button runs /tp @e[type=Bat] ~ ~-100 ~ This is teleporting bats 100 blocks below their position.  

The "Look at Your Shot" button runs a /gamemode 3 @a.  It is attached to a moderately long timer.  At the end of the timer, it runs /tp @a 324 17 -454  then runs /gamemode 2 @a.  This allows players to look if they made the shot, or if they missed.

The pressure plate by the gates runs three commands in fast succession.  First, /clear @a bow.  This takes away all bows in every player's inventory.  Then, /give @a arrow 64.  This gives all players a stack of arrows.  Lastly, /give @a bow.  This gives the player back a single bow.  I gave the player(s) back a bow, so they will always have only one bow, with as many arrows as they would like!

The last command run is attached behind every redstone lamp.  It is a simple /kill @e[type=Arrow,r=4]  It is killing all arrows in a radius of 4, so the lamps do not stay light up.