Graal Forums - Throwing bushes and stuff

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Throwing bushes and stuff

I've been scripting my own movement system for a server, and I've been pondering over ways to make my script more efficient, which hopefully some of you can help me with.

First off, I've started working on a bush-throwing method for my movement script. What I've got at the minute is not terribly efficient in my opinion, as my script triggers the server from clientside, places a bush with putnpc2, and the class npc moves akin to a thrown bush.
With this, there is a noticeable delay between throwing the bush and the bush actually appearing, so I was wondering if there were any more efficient ways to achieve the same result.

Also, it seems when the player dies and then begins to move again, his default movement re-enables, and my movement script ceases to function. The only way I've managed to remedy this problem is by scheduling an event every 0.05 seconds to disable default movement until the player's hearts are above 0.
Again, I'd like to know if there is any function which executes when the player is revived.

Anything you guys can suggest will most likely be better than what I have, and it's much appreciated.

Projectiles for the bush.

As for death problem, script your own health system, or alternatively when the player is hit with health <= damage, toggle a flag that says the player is dead and DON'T subtract the health. Let the death flag overwrite all other movement.

Quote:

Originally Posted by DustyPorViva (Post 1681213)

Ah, thanks for that death alternative.

I'm not great with projectiles, so I'll need a few pointers as to how to recreate the path taken by a thrown bush.

Quote:

Originally Posted by iBeatz (Post 1681217)

Ah, thanks for that death alternative.

I'm not great with projectiles, so I'll need a few pointers as to how to recreate the path taken by a thrown bush.

This is what I used, it's not exact but it was close enough for me:

shoot(player.x,player.y,2,dir*(pi/2)+(pi/2),.25,1.1,"ce_thrownobj",player.attr[3]);

Also read up on:

PHP Code:


		
			
 - new script command 'shoot' for shooting projectiles:
    shoot x,y,z,angle,zangle,power,gani,ganiparams;
      x,y and z - specify the starting position
      angle - shoot angle (when looking from the top): east is 0,
        north 3.14/2, west is 3.14, south 3.14*3/2)
      zangle - the angle in vertical direction, 0 means the
        projectile is shoot horizontal, 3.14/2 means straight to the
        sun
      power - the shoot power which is used to shoot the projectile;
        if it's 0 then the projectile is shoot like an old arrow
        (doesn't fall down, moves 20 tiles each second)
      gani - the animation that is used for the projectile; the
        animation can be multidirectional, the engine automatically
        selects the best direction for the flying direction; the
        animation can have 1 step (not animated) or 7 steps, then the
        engine is automatically choosing the good animation step for
        the projectile flying angle - when its raising then step 1 is
        taken, when flying horizontal it is step 4, when it is short before
        the impact then the engine displays step 7
    When the projectile is landing or hitting an object then some actions
    are triggered. With the command 'setshootparams <params>;' you can set
    the parameters that the called scripts get, call 'setshootparams' before
    shooting the projectile.
    Client-side events:
      - actionprojectile:
        is triggered when a projectile lands on the player/npc,
        in #p(0), #p(1) etc. you have the parameters set with the
        command setshootparams
    Server-side events:
      - actionprojectile:
        is triggered when a client has used the 'shoot' command to shoot a
        projectile and the projectile is landed; in #p(0) and #p(1) you have
        the x and y position of the impact in case you want to place an explosion
        or similar things on the ground (the control-npc is automatically warped
        to the level where the impact happened); #p(2),#p(3) etc. contain the
        params set with 'setshootparams' (before shooting the projectile)
      - actionsprojectile:
        is triggered when a server-side script has shot a projectile and the projectile
        is landed; in #p(0) and #p(1) you have the x and y position of the impact
        (the control-npc is automatically warped to the level where the impact
        happened); #p(2),#p(3) etc. contain the params set with 'setshootparams'
        (before shooting the projectile)
    Projectiles are easy to use and don't take a lot of bandwidth because only
    the shooting of the projectile needs to be sent, the movement is calculated on
    the different computers. The projectile is flying like a heavy object thrown
    through the air: the horizontal movement speed keeps the same (moves
    horzspeed=cos(zangle)*speed tiles all 0.05 seconds), the vertical speed is
    initialized as vertspeed=sin(zangle)*speed and is decreased by 0.1 all 0.05 seconds;
    then the new position (calculated all 0.05 seconds) is
    newx = x + cos(angle)*horzspeed, newy = y - sin(angle)*horzspeed,
    newz = z + vertspeed

For mine, I wrote a simple clientside projectile system using triggerserver/triggerclient to spawn them locally inside arrays, as I didn't think that projectiles offered quite what I needed to emulate Graal's exactly, but I might've been wrong about that.

Quote:

Originally Posted by Hezzy002 (Post 1681222)

I didn't think that projectiles offered quite what I needed to emulate Graal's exactly, but I might've been wrong about that.

I'd say so too, there was always a lot of small problems you could only try to work around.

onActionProjectile is too sensative for when attempting to emulate old arrows/darts.
onActionProjectile2 is inconstant between Serverside and Clientside.
If you have custom damage or movement systems, you can't specify conditions for projectiles to ignore certain players.
There have been problems with the built-in isblockingprojectiles variable syncing from Serverside to Clientside in NPCs.
It's impossible to adjust the speed of projectiles, while allowing them to collide with wall tiles.
No way to shoot projectiles only within your client, without them syncing to other players.

In short, it's great if you're only trying to stick closely to Graal's built-in systems. Otherwise it's necessary to script your own projectile system if you want something perfectly reliable.