Gaster Blaster

function pitchAtan2(loc1: location, loc2: location) :: number:
			set {_dx} to x-coordinate of {_loc2} - x-coordinate of {_loc1}
			set {_dy} to y-coordinate of {_loc2} - y-coordinate of {_loc1}
			set {_dz} to z-coordinate of {_loc2} - z-coordinate of {_loc1}
			set {_pitch} to 0-atan2(sqrt({_dx}^2+{_dz}^2), {_dy})
			return {_pitch}
function yawAtan2(loc1: location, loc2: location) :: number:
			set {_dx} to x-coordinate of {_loc2} - x-coordinate of {_loc1}
			set {_dz} to z-coordinate of {_loc2} - z-coordinate of {_loc1}
			set {_yaw} to atan2({_dx}, {_dz})-90
			return {_yaw}
function gasterBlaster(shooter: entity, target: entity):
	add string, cobweb, dead grass, banner, lever, redstone wire, wooden button, stone button, torch, fire, lava, water, portal, end portal, ender gateway, "6" parsed as itemtype, "37" parsed as itemtype, "38" parsed as itemtype, "39" parsed as itemtype, "40" parsed as itemtype, "175" parsed as itemtype and air to {_nohitblocks::*}
	execute console command "execute %UUID of {_shooter}% ~ ~ ~ playsound gasterblaster.all master @a ~ ~ ~ 3"
	spawn an armor stand at location random number between 2 and 3 meter above location random number between -7 and 7 meter right location of {_shooter}
	set {_blaster} to last spawned armor stand
	add "{Invisible:1b,Marker:1b,NoGravity:1b,ArmorItems:[{},{},{},{id:""minecraft:skull"",Count:1b,Damage:5s}]}" to nbt of {_blaster}
	wait 1 tick
	set {_pitch} to pitchAtan2({_blaster}, {_target})
	if {_pitch} < 0:
		add 360 to {_pitch}
	add "{Pose:{Head:[%{_pitch}%f,0f,0f]},Rotation:[%yawAtan2({_blaster}, {_target})%f,0f]}" to nbt of {_blaster}
	set {_shootloc} to location 1.25 meter above location of {_blaster}
	set pitch of {_shootloc} to pitchAtan2({_shootloc}, {_target})
	wait 0.5 second
	loop 200 times:
		set {_loopnum} to loop-number
		set {_x} to x-coordinate of location {_loopnum}*0.5 meter forwards {_shootloc}
		set {_y} to y-coordinate of location {_loopnum}*0.5 meter forwards {_shootloc}
		set {_z} to z-coordinate of location {_loopnum}*0.5 meter forwards {_shootloc}
		execute console command "execute %UUID of {_shooter}% ~ ~ ~ particle instantSpell %{_x}% %{_y}% %{_z}% 0.5 0.5 0.5 0 50 force"
		loop entities in radius 0.75 around location {_loopnum}*0.5 meter forwards {_shootloc}:
			loop-entity is a living entity
			loop-entity is not {_shooter}
			{_hit.%UUID of loop-entity%} is not set
			make {_shooter} damage loop-entity by 10
			loop-entity.setNoDamageTicks(0)
			set {_hit.%UUID of loop-entity%} to 1
			execute console command "execute %UUID of loop-entity% ~ ~ ~ effect @s 20 10 2"
		if {_nohitblocks::*} do not contain block at location {_loopnum}*0.5+0.5 meter forwards {_shootloc}:
			execute console command "execute %UUID of {_shooter}% ~ ~ ~ particle fireworksSpark %{_x}% %{_y}% %{_z}% 0 0 0 0.5 1000 force"
			stop loop
	wait 1.5 second
	kill {_blaster}
on shoot:
	shooter is a skeleton
	cancel event
	gasterBlaster(shooter, target of shooter)
on shoot:
	shooter is a wither
	cancel event
	gasterBlaster(shooter, target of shooter)
on shoot:
	shooter is a blaze
	cancel event
	gasterBlaster(shooter, target of shooter)