Random Box with absolute item chance rate

[Eross]

Hi ! Is it possible to make my random box have a chance of lower than 1% ? like .5% chance to get a certain jackpot item ? ..

I have this script I dont remember who gave this to me .. 

 

    setarray .i1[0],19824,40227,40239; // 1st Prize 5%
    set .i1random,rand(0,2); // Randomize Common Items; just change max amount if you add items
    set .chance, rand(100);

	if (.chance >= 1 && .chance <= 5){
		getitem .i1[.i1random],1;
		announce "[Lucky Draw Machine]: ["+strcharinfo(0)+"] obtained 1x ["+getitemname(.i1[.i1random])+"] (5%).",0;
		announce "[Lucky Draw Machine]: Try your luck and Win Special Prizes.",0;
		specialeffect2 699;
		end;

As you can see this script gives you a chance of 1 to 5%  .. How can I make it a chance of lower than 1% ? thanks

[Cretino]

46 minutes ago, erjsanmiguel said:

Hi ! Is it possible to make my random box have a chance of lower than 1% ? like .5% chance to get a certain jackpot item ? ..

I have this script I dont remember who gave this to me .. 

 

    setarray .i1[0],19824,40227,40239; // 1st Prize 5%
    set .i1random,rand(0,2); // Randomize Common Items; just change max amount if you add items
    set .chance, rand(100);

	if (.chance >= 1 && .chance <= 5){
		getitem .i1[.i1random],1;
		announce "[Lucky Draw Machine]: ["+strcharinfo(0)+"] obtained 1x ["+getitemname(.i1[.i1random])+"] (5%).",0;
		announce "[Lucky Draw Machine]: Try your luck and Win Special Prizes.",0;
		specialeffect2 699;
		end;

As you can see this script gives you a chance of 1 to 5%  .. How can I make it a chance of lower than 1% ? thanks

Yes, just change the 'range of rand' and you got it.

Like this:

Spoiler

	setarray .i1[0],19824,40227,40239;	// 1st Prize 5%
	set .i1random,rand(0,2);	// Randomize Common Items; just change max amount if you add items
	// Rate (1 = 0.01%, 10 = 0.10%, 100 = 1.00%, 1000 = 10.00%, 10000 = 100.00%)
	set .chance, 500; // 500 = 5.00%

	if (rand(10000) < .chance)
	{
		getitem .i1[.i1random],1;
		announce "[Lucky Draw Machine]: ["+strcharinfo(0)+"] obtained 1x ["+getitemname(.i1[.i1random])+"] (5%).",0;
		announce "[Lucky Draw Machine]: Try your luck and Win Special Prizes.",0;
		specialeffect2 699;
		end;
	}

 

 

[Eross]

33 minutes ago, Cretino said:

Yes, just change the 'range of rand' and you got it.

Like this:

  Reveal hidden contents

	setarray .i1[0],19824,40227,40239;	// 1st Prize 5%
	set .i1random,rand(0,2);	// Randomize Common Items; just change max amount if you add items
	// Rate (1 = 0.01%, 10 = 0.10%, 100 = 1.00%, 1000 = 10.00%, 10000 = 100.00%)
	set .chance, 500; // 500 = 5.00%

	if (rand(10000) < .chance)
	{
		getitem .i1[.i1random],1;
		announce "[Lucky Draw Machine]: ["+strcharinfo(0)+"] obtained 1x ["+getitemname(.i1[.i1random])+"] (5%).",0;
		announce "[Lucky Draw Machine]: Try your luck and Win Special Prizes.",0;
		specialeffect2 699;
		end;
	}

 

 

Hi sir ! you mean from 

set .chance, rand(100);

to what ? sorry hehe ^_^

[Patskie]

You can only use integer values when creating scripts so you have to adjust your rand() to achieve 0.5% chance

if (rand(1000) < 5) means 0.5%

if (rand(1000) < 1) means 0.1%

if (rand(1000) < 10) means 1%

 

[Eross]

8 minutes ago, Patskie said:

You can only use integer values when creating scripts so you have to adjust your rand() to achieve 0.5% chance

if (rand(1000) < 5) means 0.5%

if (rand(1000) < 1) means 0.1%

if (rand(1000) < 10) means 1%

 

Okay sir thankyou sir @Patskie ^_^

[Cretino]

6 hours ago, erjsanmiguel said:

Hi sir ! you mean from 

set .chance, rand(100);

to what ? sorry hehe ^_^

Look the content in the spoiler in my first post here. There has a solution with an example how to use it...

You'll need change the range of rand from '100' to '10000'.

Rate (1 = 0.01%, 10 = 0.10%, 100 = 1.00%, 1000 = 10.00%, 10000 = 100.00%)

And change the 'if' from:

if (.chance >= 1 && .chance <= 5){

To:

if (rand(10000) < .chance){

And change the value of variable '.chance' to the rate you want:

From:

set .chance, rand(100);

To:

set .chance, 500; // 500 = 5.00%

Edited May 12, 2020 by Cretino

[Eross]

1 hour ago, Cretino said:

Look the content in the spoiler in my first post here. There has a solution with an example how to use it...

You'll need change the range of rand from '100' to '10000'.

Rate (1 = 0.01%, 10 = 0.10%, 100 = 1.00%, 1000 = 10.00%, 10000 = 100.00%)

And change the 'if' from:

if (.chance >= 1 && .chance <= 5){

To:

if (rand(10000) < .chance){

And change the value of variable '.chance' to the rate you want:

From:

set .chance, rand(100);

To:

set .chance, 500; // 500 = 5.00%

I get it clearly sir thankyou for the explanation ..I learned a lot