(12-17-2020, 01:14 PM)goh Wrote: I was creating a solid bubble item (You know, from Mario Advance). But the error has occured!
Check here:

Code:

ERROR!!! :: ############################################################################################
FATAL ERROR in
action number 1
of Draw Event
for object obj_solidbubble:


Variable obj_solidbubble.item(100225, -2147483648) not set before reading it.
at gml_Object_obj_solidbubble_DrawEvent_1 (line 1) - if item = 3  ############################################################################################
--------------------------------------------------------------------------------------------
stack frame is
gml_Object_obj_solidbubble_DrawEvent_1 (line 1)

Can anyone help me on this please?

(12-17-2020, 01:29 PM)Mors Wrote: As for your question, the error says that you did not set a variable called "item". Add a line like "item = 0;" to the create event of your object.

(12-17-2020, 01:30 PM)Pedigree Wrote:

(12-17-2020, 01:14 PM)goh Wrote: I was creating a solid bubble item (You know, from Mario Advance). But the error has occured!
Check here:

Code:

ERROR!!! :: ############################################################################################
FATAL ERROR in
action number 1
of Draw Event
for object obj_solidbubble:


Variable obj_solidbubble.item(100225, -2147483648) not set before reading it.
at gml_Object_obj_solidbubble_DrawEvent_1 (line 1) - if item = 3  ############################################################################################
--------------------------------------------------------------------------------------------
stack frame is
gml_Object_obj_solidbubble_DrawEvent_1 (line 1)

Can anyone help me on this please?

You are calling for .item variable before it has been set. Remove reference to the variable in the draw event and it should work fine. You cannot reference the object's variable when you are drawing it because the draw event happens before any other event on an object in Game Maker.

---

(12-17-2020, 01:29 PM)Mors Wrote: As for your question, the error says that you did not set a variable called "item". Add a line like "item = 0;" to the create event of your object.

Draw event happens before create event in Game Maker so that will not work as far as I know, it will still throw this error.

(12-17-2020, 03:00 PM)smbmaster99 Wrote: it appears to be the same type of error you showed previously.

In this case the variable name "item" has not been initialized by the time the draw event is reached. In the create event, put:

item = 0

this should solve the problem

(12-17-2020, 03:56 PM)Pedigree Wrote: That is the same exact error you've already shown.

The draw event occurs before the create event which means the variable won't be defined when you are calling for it, so you can't refer to the variable in that draw event. Remove all references to the "item" variable in the draw event and this error will no longer trouble you.

---

What even are you trying to do with a variable in the draw event? Post the whole code of your draw event here.

(12-17-2020, 05:40 PM)Pedigree Wrote: Ok I have no clue what you're trying to accomplish with that.

Please provide some context to what this code is intended to do.


If "item" is a variable for what item Mario is currently using (and thus would be defined on Mario), then you're not referencing Mario's item variable directly: For example: obj_mario.item would be how you'd reference that. Currently Game Maker thinks you're referencing obj_solidbubble's own item variable and it can't call on a variable before you have defined it.

(12-17-2020, 07:50 PM)Pedigree Wrote: You're talking about that bubble that holds items?

You don't need to change the sprite in the draw event to change which item it's holding. You can change the sprite index in the step event based on the value of the item variable

(12-17-2020, 07:55 PM)Pedigree Wrote: In the step event:

Code:

if item = 0 {
sprite_index = bubble_empty;
//any additional code like if you want an empty bubble to float faster since nothing is in it.
}

if item = 1 {
sprite_index = bubble_shroom;
//any additional code.
}

if item = 2 {
sprite_index = bubble_fflower;
//any additional code.
}

and so on. Your sprite names may be different.

(12-17-2020, 07:59 PM)goh Wrote:

(12-17-2020, 07:55 PM)Pedigree Wrote: In the step event:

Code:

if item = 0 {
sprite_index = bubble_empty;
//any additional code like if you want an empty bubble to float faster since nothing is in it.
}

if item = 1 {
sprite_index = bubble_shroom;
//any additional code.
}

if item = 2 {
sprite_index = bubble_fflower;
//any additional code.
}

and so on. Your sprite names may be different.

I'm using Hello Mario Engine. So you know.

(12-17-2020, 07:59 PM)goh Wrote: I'm using Hello Mario Engine. So you know.

Quote:Wait a minute, I'm talking about SMA1 solid bubbles, the ones that are hit by veggies! Not SMW bubbles.

(12-17-2020, 08:32 PM)Pedigree Wrote:

(12-17-2020, 07:59 PM)goh Wrote: I'm using Hello Mario Engine. So you know.

Ok, and?

Quote:Wait a minute, I'm talking about SMA1 solid bubbles, the ones that are hit by veggies! Not SMW bubbles.

The bubbles in SMA1 hold 1up mushrooms. Your draw event code seems to be changing the sprite index depending on whether or not it is holding an item or is empty. Either way, the code example I provided will help you.

It really doesn't matter which bubble you're talking about, you don't need to change the sprite in the draw event.

(12-17-2020, 01:47 PM)Hypernova Wrote: If you're using Game Maker 8/8.1, be sure to check "treat uninitialized variables as 0".

(12-17-2020, 07:50 PM)Pedigree Wrote: You're talking about that bubble that holds items?

You don't need to change the sprite in the draw event to change which item it's holding. You can change the sprite index in the step event based on the value of the item variable

(12-18-2020, 01:54 AM)Hypernova Wrote: Regardless, as someone who's very experienced with Game Maker Studio 1.4. I would highly advise against porting a GMK (Game Maker 8.0) into a GMX. Especially Hello Engines and frameworks based on Hello Mario Engine. I've done it before with Gatete's SMB1 Engine (has similar logics compared to Hello Mario Engine). It's very tedious and difficult even for an experienced developer. If you can, I would advise to get a copy of the Game Maker 8.0 Pro. I'm sorry but you have to Google it for legal reasons.

mors Wrote:

(12-18-2020, 01:54 AM)Hypernova Wrote: Regardless, as someone who's very experienced with Game Maker Studio 1.4. I would highly advise against porting a GMK (Game Maker 8.0) into a GMX. Especially Hello Engines and frameworks based on Hello Mario Engine. I've done it before with Gatete's SMB1 Engine (has similar logics compared to Hello Mario Engine). It's very tedious and difficult even for an experienced developer. If you can, I would advise to get a copy of the Game Maker 8.0 Pro. I'm sorry but you have to Google it for legal reasons.

???

Am I missing something here? He never even mentioned porting a GM8 game to GMS. Even then, it's tedious but often worth the effort considering how outdated GM8 is at this point.

And goh, 3 different people gave you the answer, just add "item = 0" to the create event. That's all you gotta do to fix it.