9 replies to this topic

[litemaker96]

I'm working now on a space game and i need that each enemy spaceship have their own life variable, so i gave to the obj "speceship" a lifebar.
but when i run the game and i shoot to a spaceship all the spaceship lose life.
how can i fix it?

[.IB]

Are you using D&D? Or Gml? In which event are you putting the life bar?

[DcoldSaviour77]

I'm working now on a space game and i need that each enemy spaceship have their own life variable, so i gave to the obj "speceship" a lifebar.
but when i run the game and i shoot to a spaceship all the spaceship lose life.
how can i fix it?

The variable is it a local or a global?

[litemaker96]

for set life variable i used D&D
-the first time i put on "create" the icon "set life" to 100 not relative and then i put on draw event the icon "draw life bar" to....
During the game, while there is just one spaceship everything work, but when arrive the second spaceship and i shoot to the first, also the second lose 20 life points
-the second time i put on create a "set variable" icon and i wrote "global.sslife". no draw event.
But again when arrive the second spaceship i shoot to it and both explode...

[TheouAegis]

Never use global variables for instance-specific aspects. Health, player lives (in a multiplayer game), ammo, etc are all instance-specific.

If you are using D&D, you need to put in each ship a trigger for Collision With Bullet (or whatever your weapons are called) and set its life to -20 relative.

[litemaker96]

thanks for the advise, but as you can see in my nickname i've the lite edition because i want to test it before buy the pro....
but if you say that in the pro edition i can do it.. thanx

[litemaker96]

I'm sorry, but i have to ask you another question that i didn't found in the forun (like i need)
How i can definite a local question (D&D but if you can't, explain me how in gml)
i put in create event set "local.life"
collision event (bullet) set "local.life" relative -2
if "local.life" equal to 0
-start of a block
destroy the istance
-end of a block
but when i run the game appear the messagge "unknow variable"
Why?

[GameGeisha]

Just use life as is.

Creation event:

life = 5; //Example

Collision event with bullet

life -= 2;
if (life <= 0) {
  instance_destroy();
}

GameGeisha

[litemaker96]

thanx you very very very much, i worked on that problem for days

[thespriteguy]

Hey also,
if you're interested in each ship having their own health bar you can put this code in their draw event:
{
draw_sprite_stretched(spr_healthbar1,0,x,y-however-far-above-the-ship,max_life,however-tall-the-bar-is);
draw_sprite_stretched(spr_healthbar1,0,x,y-however-far-above-the-ship,life,however-tall-the-bar-is)
}

sorry if there's a typo i'm doing this off the top of my head.