SOLVED local variable "dash" not set before reading it.

[Kurumiseenpai]

Hi!

i have this error:

local variable dash(100002, -2147483648) not set before reading it.
at gml_Object_oPlayer_Step_0 (line 145) - case 1:


when i try to start this command:, can anyone help me find the error pls?

var dash;
switch (dash)
{
case 1:
if (keyboard_check(vk_space) && (global.stamina > 0) && (keyboard_check(ord("D"))))
{
global.stamina -= 7
walksp = sprintsp;
sprite_index = dashright;
}
break;


case 2:
if (keyboard_check(vk_space) && (global.stamina > 0) && (keyboard_check(ord("A"))))
{
global.stamina -= 7
walksp = sprintsp;
sprite_index = dashright;
image_xscale = -1;
}
break;

case 3:
if (keyboard_check(vk_space) && (global.stamina > 0) && (keyboard_check(ord("W"))))
{
global.stamina -= 7
walksp = sprintsp;
sprite_index = dashup;
}
break;

case 4:
if (keyboard_check(vk_space) && (global.stamina > 0) && (keyboard_check(ord("S"))))
{
global.stamina -= 7
walksp = sprintsp;
sprite_index = dashdown;
}
break;

default:
walksp = 2;
break;
}

 

[pipebkOT]

put dash=0; in the create event , not "var dash", don't declare variables as "var variablename" unless it's necessary.

and delete the "var dash" in the step event



declare all variables always in the create event, the step event is to modify that variables.

 

[Sabnock]

Nothing wrong with using Var (local variable) to declare temporary variables that are discarded at the end of the event if the information they hold is no longer needed but if you want information to survive to the next cycle you need to use an instance variable. Also look at global variables bu tonly so you know what they are and how they are used.
Manual for
Variables And Variable Scope

GameMaker Manual

 

[Alivesoft]

You don't need var dash or the switch statement at all, try this

walksp = 2;

if ((keyboard_check(vk_space) && (global.stamina > 0)))
{
if (keyboard_check(ord("D")))
{
global.stamina -= 7
walksp = sprintsp;
sprite_index = dashright;
}
else if (keyboard_check(ord("A")))
{
global.stamina -= 7
walksp = sprintsp;
sprite_index = dashleft;
image_xscale = -1;
}
else if (keyboard_check(ord("W")))
{
global.stamina -= 7
walksp = sprintsp;
sprite_index = dashup;
}
else if (keyboard_check(ord("S")))
{
global.stamina -= 7
walksp = sprintsp;
sprite_index = dashdown;
}
}