Source:NetHack 3.4.0/write.c

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1.    /*	SCCS Id: @(#)write.c	3.4	2001/11/29	*/
2.    /* NetHack may be freely redistributed.  See license for details. */
3.    
4.    #include "hack.h"
5.    
6.    STATIC_DCL int FDECL(cost,(struct obj *));
7.    
8.    /*
9.     * returns basecost of a scroll or a spellbook
10.    */
11.   STATIC_OVL int
12.   cost(otmp)
13.   register struct obj *otmp;
14.   {
15.   
16.   	if (otmp->oclass == SPBOOK_CLASS)
17.   		return(10 * objects[otmp->otyp].oc_level);
18.   
19.   	switch (otmp->otyp) {
20.   # ifdef MAIL
21.   	case SCR_MAIL:
22.   		return(2);
23.   /*		break; */
24.   # endif
25.   	case SCR_LIGHT:
26.   	case SCR_GOLD_DETECTION:
27.   	case SCR_FOOD_DETECTION:
28.   	case SCR_MAGIC_MAPPING:
29.   	case SCR_AMNESIA:
30.   	case SCR_FIRE:
31.   	case SCR_EARTH:
32.   		return(8);
33.   /*		break; */
34.   	case SCR_DESTROY_ARMOR:
35.   	case SCR_CREATE_MONSTER:
36.   	case SCR_PUNISHMENT:
37.   		return(10);
38.   /*		break; */
39.   	case SCR_CONFUSE_MONSTER:
40.   		return(12);
41.   /*		break; */
42.   	case SCR_IDENTIFY:
43.   		return(14);
44.   /*		break; */
45.   	case SCR_ENCHANT_ARMOR:
46.   	case SCR_REMOVE_CURSE:
47.   	case SCR_ENCHANT_WEAPON:
48.   	case SCR_CHARGING:
49.   		return(16);
50.   /*		break; */
51.   	case SCR_SCARE_MONSTER:
52.   	case SCR_STINKING_CLOUD:
53.   	case SCR_TAMING:
54.   	case SCR_TELEPORTATION:
55.   		return(20);
56.   /*		break; */
57.   	case SCR_GENOCIDE:
58.   		return(30);
59.   /*		break; */
60.   	case SCR_BLANK_PAPER:
61.   	default:
62.   		impossible("You can't write such a weird scroll!");
63.   	}
64.   	return(1000);
65.   }
66.   
67.   static NEARDATA const char write_on[] = { SCROLL_CLASS, SPBOOK_CLASS, 0 };
68.   
69.   int
70.   dowrite(pen)
71.   register struct obj *pen;
72.   {
73.   	register struct obj *paper;
74.   	char namebuf[BUFSZ], *nm, *bp;
75.   	register struct obj *new_obj;
76.   	int basecost, actualcost;
77.   	int curseval;
78.   	char qbuf[QBUFSZ];
79.   	int first, last, i;
80.   	boolean by_descr = FALSE;
81.   	const char *typeword;
82.   
83.   	if (nohands(youmonst.data)) {
84.   	    You("need hands to be able to write!");
85.   	    return 0;
86.   	} else if (Glib) {
87.   	    dropx(pen);
88.   	    pline("%s from your %s.",
89.   		  Tobjnam(pen, "slip"), makeplural(body_part(FINGER)));
90.   	    return 1;
91.   	}
92.   
93.   	/* get paper to write on */
94.   	paper = getobj(write_on,"write on");
95.   	if(!paper)
96.   		return(0);
97.   	typeword = (paper->oclass == SPBOOK_CLASS) ? "spellbook" : "scroll";
98.   	if(Blind && !paper->dknown) {
99.   		You("don't know if that %s is blank or not!", typeword);
100.  		return(1);
101.  	}
102.  	paper->dknown = 1;
103.  	if(paper->otyp != SCR_BLANK_PAPER && paper->otyp != SPE_BLANK_PAPER) {
104.  		pline("That %s is not blank!", typeword);
105.  		exercise(A_WIS, FALSE);
106.  		return(1);
107.  	}
108.  
109.  	/* what to write */
110.  	Sprintf(qbuf, "What type of %s do you want to write?", typeword);
111.  	getlin(qbuf, namebuf);
112.  	(void)mungspaces(namebuf);	/* remove any excess whitespace */
113.  	if(namebuf[0] == '\033' || !namebuf[0])
114.  		return(1);
115.  	nm = namebuf;
116.  	if (!strncmpi(nm, "scroll ", 7)) nm += 7;
117.  	else if (!strncmpi(nm, "spellbook ", 10)) nm += 10;
118.  	if (!strncmpi(nm, "of ", 3)) nm += 3;
119.  
120.  	if ((bp = strstri(nm, " armour")) != 0) {
121.  		(void)strncpy(bp, " armor ", 7);	/* won't add '\0' */
122.  		(void)mungspaces(bp + 1);	/* remove the extra space */
123.  	}
124.  
125.  	first = bases[(int)paper->oclass];
126.  	last = bases[(int)paper->oclass + 1] - 1;
127.  	for (i = first; i <= last; i++) {
128.  		/* extra shufflable descr not representing a real object */
129.  		if (!OBJ_NAME(objects[i])) continue;
130.  
131.  		if (!strcmpi(OBJ_NAME(objects[i]), nm))
132.  			goto found;
133.  		if (!strcmpi(OBJ_DESCR(objects[i]), nm)) {
134.  			by_descr = TRUE;
135.  			goto found;
136.  		}
137.  	}
138.  
139.  	There("is no such %s!", typeword);
140.  	return 1;
141.  found:
142.  
143.  	if (i == SCR_BLANK_PAPER || i == SPE_BLANK_PAPER) {
144.  		You_cant("write that!");
145.  		pline("It's obscene!");
146.  		return 1;
147.  	} else if (i == SPE_BOOK_OF_THE_DEAD) {
148.  		pline("No mere dungeon adventurer could write that.");
149.  		return 1;
150.  	} else if (by_descr && paper->oclass == SPBOOK_CLASS &&
151.  		    !objects[i].oc_name_known) {
152.  		/* can't write unknown spellbooks by description */
153.  		pline(
154.  		  "Unfortunately you don't have enough information to go on.");
155.  		return 1;
156.  	}
157.  
158.  	/* KMH, conduct */
159.  	u.uconduct.literate++;
160.  
161.  	new_obj = mksobj(i, FALSE, FALSE);
162.  	new_obj->bknown = (paper->bknown && pen->bknown);
163.  
164.  	/* shk imposes a flat rate per use, not based on actual charges used */
165.  	check_unpaid(pen);
166.  
167.  	/* see if there's enough ink */
168.  	basecost = cost(new_obj);
169.  	if(pen->spe < basecost/2)  {
170.  		Your("marker is too dry to write that!");
171.  		obfree(new_obj, (struct obj *) 0);
172.  		return(1);
173.  	}
174.  
175.  	/* we're really going to write now, so calculate cost
176.  	 */
177.  	actualcost = rn1(basecost/2,basecost/2);
178.  	curseval = bcsign(pen) + bcsign(paper);
179.  	exercise(A_WIS, TRUE);
180.  	/* dry out marker */
181.  	if (pen->spe < actualcost) {
182.  		pen->spe = 0;
183.  		Your("marker dries out!");
184.  		/* scrolls disappear, spellbooks don't */
185.  		if (paper->oclass == SPBOOK_CLASS) {
186.  			pline_The(
187.  		       "spellbook is left unfinished and your writing fades.");
188.  			update_inventory();	/* pen charges */
189.  		} else {
190.  			pline_The("scroll is now useless and disappears!");
191.  			useup(paper);
192.  		}
193.  		obfree(new_obj, (struct obj *) 0);
194.  		return(1);
195.  	}
196.  	pen->spe -= actualcost;
197.  
198.  	/* can't write if we don't know it - unless we're lucky */
199.  	if(!(objects[new_obj->otyp].oc_name_known) &&
200.  	   !(objects[new_obj->otyp].oc_uname) &&
201.  	   (rnl(Role_if(PM_WIZARD) ? 3 : 15))) {
202.  		You("%s to write that!", by_descr ? "fail" : "don't know how");
203.  		/* scrolls disappear, spellbooks don't */
204.  		if (paper->oclass == SPBOOK_CLASS) {
205.  			You(
206.         "write in your best handwriting:  \"My Diary\", but it quickly fades.");
207.  			update_inventory();	/* pen charges */
208.  		} else {
209.  			if (by_descr) {
210.  			    Strcpy(namebuf, OBJ_DESCR(objects[new_obj->otyp]));
211.  			    wipeout_text(namebuf, (6+MAXULEV - u.ulevel)/6, 0);
212.  			} else
213.  			    Sprintf(namebuf, "%s was here!", plname);
214.  			You("write \"%s\" and the scroll disappears.", namebuf);
215.  			useup(paper);
216.  		}
217.  		obfree(new_obj, (struct obj *) 0);
218.  		return(1);
219.  	}
220.  
221.  	/* useup old scroll / spellbook */
222.  	useup(paper);
223.  
224.  	/* success */
225.  	if (new_obj->oclass == SPBOOK_CLASS) {
226.  		/* acknowledge the change in the object's description... */
227.  		pline_The("spellbook warps strangely, then turns %s.",
228.  		      OBJ_DESCR(objects[new_obj->otyp]));
229.  	}
230.  	new_obj->blessed = (curseval > 0);
231.  	new_obj->cursed = (curseval < 0);
232.  #ifdef MAIL
233.  	if (new_obj->otyp == SCR_MAIL) new_obj->spe = 1;
234.  #endif
235.  	new_obj = hold_another_object(new_obj, "Oops!  %s out of your grasp!",
236.  					       The(aobjnam(new_obj, "slip")),
237.  					       (const char *)0);
238.  	return(1);
239.  }
240.  
241.  /*write.c*/