［講解］掉寶糖,經驗加倍書不會重複銷耗的問題

Alopex

看過許多問題,問說為什麼多使用一次加倍書,掉寶糖會什麼不會減少數量

原因在於map執行端


請打開src\map\pc.c

看到下列函數

1. int pc_isUseitem(struct map_session_data *sd,int n)
   
2. {
   
3. struct item_data *item;
   
4. int nameid;
   
5. 
   
6. nullpo_retr(0, sd);
   
7. 
   
8. item = sd->inventory_data[n];
   
9. nameid = sd->status.inventory[n].nameid;
   
10. 
    
11. if( item == NULL )
    
12. return 0;
    
13. //Not consumable item
    
14. if( item->type != IT_HEALING && item->type != IT_USABLE )
    
15. return 0;
    
16. if( !item->script ) //if it has no script, you can't really consume it!
    
17. return 0;
    
18. 
    
19. switch( nameid )
    
20. {
    
21. case 605: // Anodyne
    
22. if( map_flag_gvg(sd->bl.m) )
    
23. return 0;
    
24. case 606:
    
25. if( pc_issit(sd) )
    
26. return 0;
    
27. break;
    
28. case 601: // Fly Wing
    
29. case 12212: // Giant Fly Wing
    
30. if( map[sd->bl.m].flag.noteleport || map_flag_gvg(sd->bl.m) )
    
31. {
    
32. clif_skill_teleportmessage(sd,0);
    
33. return 0;
    
34. }
    
35. case 602: // ButterFly Wing
    
36. case 14527: // Dungeon Teleport Scroll
    
37. case 14581: // Dungeon Teleport Scroll
    
38. case 14582: // Yellow Butterfly Wing
    
39. case 14583: // Green Butterfly Wing
    
40. case 14584: // Red Butterfly Wing
    
41. case 14585: // Blue Butterfly Wing
    
42. case 14591: // Siege Teleport Scroll
    
43. if( sd->duel_group && !battle_config.duel_allow_teleport )
    
44. {
    
45. clif_displaymessage(sd->fd, "Duel: Can't use this item in duel.");
    
46. return 0;
    
47. }
    
48. if( nameid != 601 && nameid != 12212 && map[sd->bl.m].flag.noreturn )
    
49. return 0;
    
50. break;
    
51. case 604: // Dead Branch
    
52. case 12024: // Red Pouch
    
53. case 12103: // Bloody Branch
    
54. case 12109: // Poring Box
    
55. if( map[sd->bl.m].flag.nobranch || map_flag_gvg(sd->bl.m) )
    
56. return 0;
    
57. break;
    
58. case 12210: // Bubble Gum
    
59. case 12264: // Comp Bubble Gum
    
60. if( sd->sc.data[SC_ITEMBOOST] )
    
61. return 0;
    
62. break;
    
63. case 12208: // Battle Manual
    
64. case 12263: // Comp Battle Manual
    
65. case 12312: // Thick Battle Manual
    
66. case 12705: // Noble Nameplate
    
67. case 14532: // Battle_Manual25
    
68. case 14533: // Battle_Manual100
    
69. case 14545: // Battle_Manual300
    
70. if( sd->sc.data[SC_EXPBOOST] )
    
71. return 0;
    
72. break;
    
73. case 14592: // JOB_Battle_Manual
    
74. if( sd->sc.data[SC_JEXPBOOST] )
    
75. return 0;
    
76. break;
    
77. 
    
78. // Mercenary Items
    
79. 
    
80. case 12184: // Mercenary's Red Potion
    
81. case 12185: // Mercenary's Blue Potion
    
82. case 12241: // Mercenary's Concentration Potion
    
83. case 12242: // Mercenary's Awakening Potion
    
84. case 12243: // Mercenary's Berserk Potion
    
85. if( sd->md == NULL || sd->md->db == NULL )
    
86. return 0;
    
87. if( sd->md->sc.data[SC_BERSERK] )
    
88. return 0;
    
89. if( nameid == 12242 && sd->md->db->lv < 40 )
    
90. return 0;
    
91. if( nameid == 12243 && sd->md->db->lv < 80 )
    
92. return 0;
    
93. break;
    
94. }
    
95. 
    
96. if( nameid >= 12153 && nameid <= 12182 && sd->md != NULL )
    
97. return 0; // Mercenary Scrolls
    
98. 
    
99. //added item_noequip.txt items check by Maya&[Lupus]
    
100. if (
     
101. (map[sd->bl.m].flag.pvp && item->flag.no_equip&1) || // PVP
     
102. (map_flag_gvg(sd->bl.m) && item->flag.no_equip&2) || // GVG
     
103. (map[sd->bl.m].flag.restricted && item->flag.no_equip&map[sd->bl.m].zone) // Zone restriction
     
104. )
     
105. return 0;
     
106. 
     
107. //Gender check
     
108. if(item->sex != 2 && sd->status.sex != item->sex)
     
109. return 0;
     
110. //Required level check
     
111. if(item->elv && sd->status.base_level < (unsigned int)item->elv)
     
112. return 0;
     
113. 
     
114. //Not equipable by class. [Skotlex]
     
115. if (!(
     
116. (1<<(sd->class_&MAPID_BASEMASK)) &
     
117. (item->class_base[sd->class_&JOBL_2_1?1:(sd->class_&JOBL_2_2?2:0)])
     
118. ))
     
119. return 0;
     
120. 
     
121. //Not usable by upper class. [Skotlex]
     
122. if(!(
     
123. (1<<(sd->class_&JOBL_UPPER?1:(sd->class_&JOBL_BABY?2:0))) &
     
124. item->class_upper
     
125. ))
     
126. return 0;
     
127. 
     
128. //Dead Branch & Bloody Branch & Porings Box
     
129. if((log_config.branch > 0) && (nameid == 604 || nameid == 12103 || nameid == 12109))
     
130. log_branch(sd);
     
131. 
     
132. return 1;
     
133. }

複製代碼

switch( nameid )

nameid就是物品ID

至於為什麼不能重複使用掉寶糖的原因在這

1. 
   
2. case 12264: // Comp Bubble Gum
   
3. if( sd->sc.data[SC_ITEMBOOST] )//檢查玩家狀態,是否已經使用
   
4. return 0;
   

複製代碼