Solved Shoot projectile towards an entity

[PatoFrango]

Hi,

This is one of those simple things that can be easily done but your brain just makes it harder. How would I shoot a projectile from a location towards a player?

I've tried

shoot a snowball from location at 919977, 128, 978119 in world "water" at speed 1 in direction of loop-player

but it shoots the projectile from the coordinates towards the direction the player is facing, not to where he's at.

 

[iChinchillinq]

Instead of "in direction of loop-player" try "towards loop-player"
"Direction of loop-player" is an expression that represents the direction loop-player is facing.

 

[PatoFrango]

Instead of "in direction of loop-player" try "towards loop-player"
"Direction of loop-player" is an expression that represents the direction loop-player is facing.

I've already tried that, it tells me that "loop-player" is not a direction

 

[Mr_Simba]

You can do "direction from %location% to %location%" to get a direction pointing from one spot to another, so it should be something like this:

set {_loc} to location(919977, 128, 978119, world("water"))
shoot a snowball from {_loc} at speed 1 in direction from {_loc} to loop-player

 

[PatoFrango]

You can do "direction from %location% to %location%" to get a direction pointing from one spot to another, so it should be something like this:

set {_loc} to location(919977, 128, 978119, world("water"))
shoot a snowball from {_loc} at speed 1 in direction from {_loc} to loop-player

Thanks very much, I'm going to try that, but in the meantime I've crossed an even more efficient solution: applying the pythagorean theorem in the program.

every 6 seconds in "water":
    {challenge9.onGoing} == true
    loop all players in "water":
        "%region at loop-player%" contains "challenge9"
        set {challenge9.Tile} to "%region at loop-player%"
        if {challenge9.Head} == "red":
            set {_x} to floor(loop-player's x-coordinate - 919977) / 10
            set {_z} to floor(loop-player's z-coordinate - 978119) / 10
            set {_y} to floor(loop-player's y-coordinate - 128) / 10
            if {_x} is 1 or -1:
                set {_x} to "%{_x}%.0"
            if {_z} is 1 or -1:
                set {_z} to "%{_z}%.0"
            console command "/execute %loop-player% ~ ~ ~ /summon fireball 919977 128 978119 {damage:0,direction:[%{_x}%,%{_y}%,%{_z}%],ExplosionPower:0}"

First, I calculated the difference between the player's and the shooting location's x-coordinate (which is 919977), then I rounded the result down so that I get the block's exact coordinate, not for example 7.9 which would mean that the player is at the edge of the block. With this we've got 7, but if I put that number in the command it would just be too big and inaccurate PLUS the command's syntax actually requires a decimal part, so I divided it by 10 and I got 0.7, which was just what I wanted. Did the same thing with z and y. The problem is, sometimes the result would actually be just 1 instead of 1.0, because Skript simplifies it to 1, so I had to create two conditions, one for x and other for z which tells if the result of one of them is 1 or -1, it converts the value into a string adding the .0 in the end. Then, the ACTUAL command executes the theorem to calculate the direction with the given values between de x and the z and does some crazy 3D magic with the y. The only thing I know for y is that it works xD, not sure how, but basically the command then converts the result into some kind of vector and ta-daa, there it is, the automatic projectile-direction-calculator-3000

 

[Mr_Simba]

This is exactly what the Skript code will be doing internally on some level, I doubt it's much more efficient to do it yourself.

 

[PatoFrango]

This is exactly what the Skript code will be doing internally on some level, I doubt it's much more efficient to do it yourself.

Yeah, maybe you're right. Still, it was pretty fun to figure out. It forced my brain to think, which is what I always aim for when I'm coding.
Thanks!
[doublepost=1530821919,1530808998][/doublepost]

You can do "direction from %location% to %location%" to get a direction pointing from one spot to another, so it should be something like this:

set {_loc} to location(919977, 128, 978119, world("water"))
shoot a snowball from {_loc} at speed 1 in direction from {_loc} to loop-player

Actually it doesn't work RIP
It says "Could not understand this condition/effect: shoot a..."

 

[Mr_Simba]

Just an issue with the syntax then. Probably need to remove the "in" before the direction

 

[PatoFrango]

Just an issue with the syntax then. Probably need to remove the "in" before the direction

Ah, it works now, and how would I summon a fireball that doesn't destroy blocks?

EDIT: Nevermind, that's not what I meant, I meant to ask how would I make so the fireball doesn't instantly explode when it's spawned? Because that's what happens.

 

[TPGamesNL]

Ah, it works now, and how would I summon a fireball that doesn't destroy blocks?

EDIT: Nevermind, that's not what I meant, I meant to ask how would I make so the fireball doesn't instantly explode when it's spawned? Because that's what happens.

If you spawn it at an entity you have to spawn it a little bit in front of that entity

 

[PatoFrango]

If you spawn it at an entity you have to spawn it a little bit in front of that entity

Nope, I spawned it at a clear coordinate, with no blocks or entities blocking the projectile's path.