PT_ShopPercentages

じ☆ve冰风

I've made another plugin I find very useful.
So I thought, I'd like to share it with you guys.
Hope it helps


What does it do?
This plugin changes the way, user-specified prices in the shop windows work.
They will now be treated as percentage values rather than absolute prices.

Features

• decide whether to use your input as total percentage or discount values.
  
• you can also use variables for your special prices
  
• also, special prices for ALL items can be set.
  

How to use
Copy the source code (from below) and save it as
"YOUR_PROJECT_PATH/js/plugins/PT_ShopPercentages.js".

The plugin is plug & play and will work just fine with default values.
However, you can manipulate its behavior using the plugin parameters.
See the documentation contained in the plugin itself for details.

If you already work with special prices a lot already in your project,
it is not recommended to install this plugin or you might have a lot of work before you.
If you're starting a new project, however, this plugin will help make thinks
a lot easier in terms of in-game financial balancing.

Terms of use
Spoiler: Terms of use

You may freely use, copy and modify this script
in any commercial or non-commercial game.

Re-distribution of the source code as is, is prohibited.
You may link to the source, you got it from, though.
The distribution of your modified code is allowed,
as long as the original author is kept visible.

Crediting the author in the game, however,
is not required, although much appreciated.

Screenshots packed with this plugin are for
demonstrational purpose only.

Credits for the original software
"RPG Maker MV" go to
Copyright (c) 2015 KADOKAWA CORPORATION / YOJI OJIMA

The plugin
Spoiler: Source code

                Code:       

1. /*:
2. * @plugindesc v1.1 Use percentages for special shop prices
3. * @author Patrick Tietz <ptietz.official[at]gmail.com>
4. *
5. * @param rounding method
6. * @desc how to round results
7. * (round, floor, ceil)
8. * @type select
9. * @option round
10. * @option floor
11. * @option ceil
12. * @default round
13. *
14. * @param treat as discount
15. * @desc treat input percentages as discount
16. * @type boolean
17. * @default false
18. *
19. * @param use variables
20. * @desc use price input as variable index
21. * @type boolean
22. * @default false
23. *
24. * @param overall variable
25. * @desc apply to all prices
26. * @type variable
27. * @default 0
28. *
29. *
30. * @help
31. *
32. * ######################################
33. * # Welcome                            #
34. * ######################################
35. *
36. * Thank you for using ShopPercentages.
37. *
38. * This Plugin treats special prices in the shop processing
39. * as percentages rather than absolute prices.
40. *
41. * This way, you won't have to go over all the NPCs
42. * that sell a particular item, whenever you change
43. * and balance its price.
44. *
45. * Have fun making games! :)
46. *
47. *
48. * ######################################
49. * # General Instructions               #
50. * ######################################
51. *
52. * This plugin is plug & play and will perfectly work
53. * from the moment you install and enable it
54. * from within the plugin manager.
55. *
56. * Please, keep in mind that this plugin
57. * overrides the defaul shop behavior for special prices.
58. * Installing this plugin midway through your project
59. * will probably have a significant impact on
60. * already set special prices in your game.
61. * This might ruin your financial balance
62. * and you will have to edit every shop again.
63. *
64. * The plugin does not add any plugin commands.
65. *
66. *
67. * ######################################
68. * # Parameters                         #
69. * ######################################
70. *
71. * rounding method
72. * ===============
73. * You can define how you want float number results
74. * to be rounded. Methods are "round", "ceil" and "floor".
75. *
76. *   Example:
77. *   Let's assume we have an item for sale that costs 210 by default.
78. *   We want to have it sold by 90% of its original value.
79. *   That would give us a total of 189.81 which is not
80. *   possible in RPG Maker MV. Therefore we must round.
81. *
82. *
83. * treat as discount
84. * =================
85. * If enabled, you special price inputs will be treated
86. * as discount rather than total percentage values.
87. * This affects variables as well.
88. *
89. * This parameter's behavior adjusts to your
90. * "treat as discount" setting.
91. *
92. *   Example:
93. *   Usually, when you have an item of 200 value
94. *   sold for 180, you would have to enter "90"
95. *   as 180 is 90% of 200.
96. *   With this parameter enabled, you would now
97. *   have to enter "10" as 180 is a 10% discount
98. *   of the original 200.
99. *
100. *
101. * use variables
102. * =============
103. * If you enable "use variables", your special prices will no longer
104. * be treated as direct percentage inputs but as variable indizes.
105. *
106. *   Example:
107. *   Maybe, you want a 10% discount on all swords.
108. *   To get there, you would have to set a value
109. *   for a variable, depending on your "treat as discount" setting.
110. *   Then you would write the index of that variable
111. *   as a special price on each shop's swords.
112. *   Of course, there are many other use cases thinkable.
113. *
114. *
115. * overall variable
116. * ================
117. * Here, you can specify a variable whose value is applied to
118. * all shop prices (even default ones).
119. *
120. * Be aware that this variable is applied AFTER
121. * everything else. This means, that even an item
122. * that already has a special price, will still
123. * be affected by this setting.
124. *
125. * This parameter's behavior adjusts to your
126. * "treat as discount" setting.
127. *
128. *   Example:
129. *   Let's say your player has some sort of bargaining skill
130. *   which affects all shop prices.
131. *   This can be achieved by writing the current discount,
132. *   calculated by the particular skill, into a variable
133. *   and then specifying that variable in this plugin.
134. *
135. *
136. * ######################################
137. * # Terms of use                       #
138. * ######################################
139. *
140. * You may freely use, copy and modify this script
141. * in any commercial or non-commercial game.
142. *
143. * Re-distribution of the source code as is, is prohibited.
144. * You may link to the source, you got it from, though.
145. * The distribution of your modified code is allowed,
146. * as long as the original author is kept visible.
147. *
148. * Crediting the author in the game, however,
149. * is not required, although much appreciated.
150. *
151. * Screenshots packed with this plugin are for
152. * demonstrational purpose only.
153. *
154. * Credits for the original software
155. * "RPG Maker MV" go to
156. * Copyright (c) 2015 KADOKAWA CORPORATION / YOJI OJIMA
157. */
159. // get parameters
160. PT_ShopPercentages_ParamsRaw = {
161.     roundingMethod: String( PluginManager.parameters( 'PT_ShopPercentages' )[ 'rounding method' ] ),
162.     treatAsDiscount: String( PluginManager.parameters( 'PT_ShopPercentages' )[ 'treat as discount' ] ),
163.     useVars: String( PluginManager.parameters( 'PT_ShopPercentages' )[ 'use variables' ] ),
164.     overallVariable: parseInt( PluginManager.parameters( 'PT_ShopPercentages' )[ 'overall variable' ] ),
165. };
167. // validate parameters
168. PT_ShopPercentages_Params = {
169.     roundingMethod      : PT_ShopPercentages_ParamsRaw.roundingMethod === 'ceil'
170.                             || PT_ShopPercentages_ParamsRaw.roundingMethod === 'floor'
171.                             ? PT_ShopPercentages_ParamsRaw.roundingMethod
172.                             : 'round',
173.     treatAsDiscount     : PT_ShopPercentages_ParamsRaw.treatAsDiscount === 'true'
174.                             || PT_ShopPercentages_ParamsRaw.treatAsDiscount === '1'
175.                             || PT_ShopPercentages_ParamsRaw.treatAsDiscount === 'yes'
176.                             ? true
177.                             : false,
178.     useVars: PT_ShopPercentages_ParamsRaw.useVars === 'true'
179.                             || PT_ShopPercentages_ParamsRaw.useVars === '1'
180.                             || PT_ShopPercentages_ParamsRaw.useVars === 'yes'
181.                             ? true
182.                             : false,
183.     overallVariable: PT_ShopPercentages_ParamsRaw.overallVariable
184. };
187. /**
188. * Calculate item price
189. *
190. * @param {number} origItemPrice original item price (from database)
191. * @param {number} rawPriceInput raw price input from shop window, optional
192. * @param {boolean} isOverall for internal use only
193. * @returns {number}
194. */
195. Window_ShopBuy.prototype.calcItemPrice = function( origItemPrice, rawPriceInput, isOverall = false )
196. {
197.     var result = origItemPrice;
198.    
199.     if ( arguments.length > 1 && typeof rawPriceInput !== 'undefined' )
200.     {
201.         // get price modifier depending "use variables" setting
202.         var input = !isOverall && PT_ShopPercentages_Params.useVars
203.             ? parseInt( $gameVariables.value( rawPriceInput ) )
204.             : rawPriceInput;
205.            
206.         // calculate price depending on "treatAsDiscount" setting
207.         var percentage = PT_ShopPercentages_Params.treatAsDiscount
208.             ? origItemPrice - origItemPrice * input / 100
209.             : origItemPrice * ( input / 100 );
210.            
211.         // round price depending on "rounding message" setting
212.         result = parseInt( Math[ PT_ShopPercentages_Params.roundingMethod ]( percentage ) );
213.     }
214.    
215.     // if "overall variable" is set
216.     if ( !isOverall && PT_ShopPercentages_Params.overallVariable > 0 )
217.     {
218.         // redo the whole thing
219.         result = this.calcItemPrice(
220.             result,
221.             $gameVariables.value( PT_ShopPercentages_Params.overallVariable ),
222.             true
223.         );
224.     }
225.    
226.     // return result
227.     return result;
228. };
231. /**
232. * Make item list for buying window
233. *
234. * @override
235. * @returns {undefined}
236. */
237. Window_ShopBuy.prototype.makeItemList = function()
238. {
239.     this._data = [];
240.     this._price = [];
241.    
242.     this._shopGoods.forEach( function( goods )
243.     {
244.         var item = null;
245.       
246.         switch ( goods[0] )
247.         {
248.             case 0:
249.                 item = $dataItems[ goods[1] ];
250.                 break;
251.             case 1:
252.                 item = $dataWeapons[ goods[1] ];
253.                 break;
254.             case 2:
255.                 item = $dataArmors[ goods[1] ];
256.                 break;
257.         }
258.       
259.         if ( item )
260.         {
261.             this._data.push( item );
262.             this._price.push(
263.                 goods[2] === 0
264.                 ? this.calcItemPrice( item.price )
265.                 : this.calcItemPrice( item.price, goods[3] )
266.             );
267.         }
268.       
269.     }, this );
270.    
271. };

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Happy game making!



本贴来自国际rpgmaker官方论坛作者:ptietz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/pt_shoppercentages.98150/