Linked Variables

じ☆ve冰风

Linked Variables v1.01
Shaz​

Introduction
This script allows you to ‘link’ a variable with some other element in your game, so when you refer to that variable to retrieve its value, it goes off and finds the value you REALLY want to retrieve. It is the equivalent of doing a Control Variables to set a variable, and then using the result in a calculation, a Show Text command, a description (via \v[x]), a Conditional Branch, etc., but removes the Control Variables step.

By adding a link for the variable, you never need to do a Control Variables to put a value in – it always does the calculation for you at the time you are referencing the variable (so it will always be completely up-to-date).

Versions
Spoiler                Code:       

1. 1.0  Nov 11 2013  Initial Release1.01 Nov 11 2013  Added check to prevent crash with save files prior to script addition

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How to Use
Paste into a new script slot below Materials.
Edit the init_links method to add a new array element for each variable you what to link, along with a script command to eval whenever that variable is referenced.

Follow this format:

 
                Code:       

1. @links[variable_id] = 'eval_command'

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Examples:
Make \v[1] always show how many of item #8 you have in inventory:




                Code:       

1. @links[1] = '$game_party.item_number($data_items[8])'

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Make \v[2] always show how many of weapon #3 you have in inventory (this would exclude equipped items, because of the way item_number works):
                Code:       

1. @links[2] = '$game_party.item_number($data_weapons[3])'

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Make \v[3] always show how many opponents remain in your enemy’s troop:
                Code:       

1. @links[3] = '$game_troop.alive_members.size'

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Make \v[4] always show the player’s X position, and \v[5] always show the player’s Y position:
                Code:       

1. @links[4] = '$game_player.x'@links[5] = '$game_player.y'

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Make \v[6] always show the leader’s HP rate:
                Code:       

1. @links[6] = '$game_party.leader.hp_rate'

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Script
Download Here


Known Issues
This is not reliable for using a linked variable as a condition on an event page, as the condition behind the link may change more often than event pages are polled to determine which one is active.

FAQ


Credit and Thanks
- Shaz

Author's Notes
I have added a check to ensure this still works with save files made prior to implementing this script.
If you add this script to a project that's half finished, you may go back and remove any commands that change the values in linked variables, but you do not have to - they will effectively be ignored.
Free to use in commercial games.
Give credit.


本贴来自国际rpgmaker官方论坛作者:Shaz处,因国际论坛即将永久关站,为了存档多年珍贵资料,署名转载到本论坛存档,由于官方帖子为英文原帖，需要中文翻译请点击论坛顶部切换语言为中文就可以将帖子翻译成中文浏览,方便大家随时查看,原文地址：https://forums.rpgmakerweb.com/threads/linked-variables.19847/