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Source:NetHack 3.4.0/exper.c

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Below is the full text to exper.c from the source code of NetHack 3.4.0. To link to a particular line, write [[NetHack 3.4.0/exper.c#line123]], for example.

Warning! This is the source code from an old release. For the latest release, see Source code

The NetHack General Public License applies to screenshots, source code and other content from NetHack.
1.    /*	SCCS Id: @(#)exper.c	3.4	2002/01/15	*/
2.    /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
3.    /* NetHack may be freely redistributed.  See license for details. */
4.    
5.    #include "hack.h"
6.    
7.    STATIC_DCL long FDECL(newuexp, (int));
8.    STATIC_DCL int FDECL(enermod, (int));
9.    
10.   STATIC_OVL long
11.   newuexp(lev)
12.   int lev;
13.   {
14.   	if (lev < 10) return (10L * (1L << lev));
15.   	if (lev < 20) return (10000L * (1L << (lev - 10)));
16.   	return (10000000L * ((long)(lev - 19)));
17.   }
18.   
19.   STATIC_OVL int
20.   enermod(en)
21.   int en;
22.   {
23.   	switch (Role_switch) {
24.   	case PM_PRIEST:
25.   	case PM_WIZARD:
26.   	    return(2 * en);
27.   	case PM_HEALER:
28.   	case PM_KNIGHT:
29.   	    return((3 * en) / 2);
30.   	case PM_BARBARIAN:
31.   	case PM_VALKYRIE:
32.   	    return((3 * en) / 4);
33.   	default:
34.   	    return (en);
35.   	}
36.   }
37.   
38.   int
39.   experience(mtmp, nk)	/* return # of exp points for mtmp after nk killed */
40.   	register struct	monst *mtmp;
41.   	register int	nk;
42.   #if defined(macintosh) && (defined(__SC__) || defined(__MRC__))
43.   # pragma unused(nk)
44.   #endif
45.   {
46.   	register struct permonst *ptr = mtmp->data;
47.   	int	i, tmp, tmp2;
48.   
49.   	tmp = 1 + mtmp->m_lev * mtmp->m_lev;
50.   
51.   /*	For higher ac values, give extra experience */
52.   	if((i = find_mac(mtmp)) < 3) tmp += (7 - i) * (i < 0) ? 2 : 1;
53.   
54.   /*	For very fast monsters, give extra experience */
55.   	if(ptr->mmove >= 12) tmp += (ptr->mmove >= 18) ? 5 : 3;
56.   
57.   /*	For each "special" attack type give extra experience */
58.   	for(i = 0; i < NATTK; i++) {
59.   
60.   	    tmp2 = ptr->mattk[i].aatyp;
61.   	    if(tmp2 > AT_BUTT) {
62.   
63.   		if(tmp2 == AT_WEAP) tmp += 5;
64.   		else if(tmp2 == AT_MAGC) tmp += 10;
65.   		else tmp += 3;
66.   	    }
67.   	}
68.   
69.   /*	For each "special" damage type give extra experience */
70.   	for(i = 0; i < NATTK; i++) {
71.   	    tmp2 = ptr->mattk[i].adtyp;
72.   	    if(tmp2 > AD_PHYS && tmp2 < AD_BLND) tmp += 2*mtmp->m_lev;
73.   	    else if((tmp2 == AD_DRLI) || (tmp2 == AD_STON) ||
74.   	    		(tmp2 == AD_SLIM)) tmp += 50;
75.   	    else if(tmp != AD_PHYS) tmp += mtmp->m_lev;
76.   		/* extra heavy damage bonus */
77.   	    if((int)(ptr->mattk[i].damd * ptr->mattk[i].damn) > 23)
78.   		tmp += mtmp->m_lev;
79.   	    if (tmp2 == AD_WRAP && ptr->mlet == S_EEL && !Amphibious)
80.   		tmp += 1000;
81.   	}
82.   
83.   /*	For certain "extra nasty" monsters, give even more */
84.   	if (extra_nasty(ptr)) tmp += (7 * mtmp->m_lev);
85.   
86.   /*	For higher level monsters, an additional bonus is given */
87.   	if(mtmp->m_lev > 8) tmp += 50;
88.   
89.   #ifdef MAIL
90.   	/* Mail daemons put up no fight. */
91.   	if(mtmp->data == &mons[PM_MAIL_DAEMON]) tmp = 1;
92.   #endif
93.   
94.   	return(tmp);
95.   }
96.   
97.   void
98.   more_experienced(exp, rexp)
99.   	register int exp, rexp;
100.  {
101.  	u.uexp += exp;
102.  	u.urexp += 4*exp + rexp;
103.  	if(exp
104.  #ifdef SCORE_ON_BOTL
105.  	   || flags.showscore
106.  #endif
107.  	   ) flags.botl = 1;
108.  	if (u.urexp >= (Role_if(PM_WIZARD) ? 1000 : 2000))
109.  		flags.beginner = 0;
110.  }
111.  
112.  void
113.  losexp(drainer)		/* e.g., hit by drain life attack */
114.  const char *drainer;	/* cause of death, if drain should be fatal */
115.  {
116.  	register int num;
117.  
118.  	if (resists_drli(&youmonst)) return;
119.  
120.  	if (u.ulevel > 1) {
121.  		pline("%s level %d.", Goodbye(), u.ulevel--);
122.  		/* remove intrinsic abilities */
123.  		adjabil(u.ulevel + 1, u.ulevel);
124.  		reset_rndmonst(NON_PM);	/* new monster selection */
125.  	} else {
126.  		if (drainer) {
127.  			killer_format = KILLED_BY;
128.  			killer = drainer;
129.  			done(DIED);
130.  		}
131.  		/* no drainer or lifesaved */
132.  		u.uexp = 0;
133.  	}
134.  	num = newhp();
135.  	u.uhpmax -= num;
136.  	if (u.uhpmax < 1) u.uhpmax = 1;
137.  	u.uhp -= num;
138.  	if (u.uhp < 1) u.uhp = 1;
139.  	else if (u.uhp > u.uhpmax) u.uhp = u.uhpmax;
140.  
141.  	if (u.ulevel < urole.xlev)
142.  	    num = rn1((int)ACURR(A_WIS)/2 + urole.enadv.lornd + urace.enadv.lornd,
143.  	    		urole.enadv.lofix + urace.enadv.lofix);
144.  	else
145.  	    num = rn1((int)ACURR(A_WIS)/2 + urole.enadv.hirnd + urace.enadv.hirnd,
146.  	    		urole.enadv.hifix + urace.enadv.hifix);
147.  	num = enermod(num);		/* M. Stephenson */
148.  	u.uenmax -= num;
149.  	if (u.uenmax < 0) u.uenmax = 0;
150.  	u.uen -= num;
151.  	if (u.uen < 0) u.uen = 0;
152.  	else if (u.uen > u.uenmax) u.uen = u.uenmax;
153.  
154.  	if (u.uexp > 0)
155.  		u.uexp = newuexp(u.ulevel) - 1;
156.  	flags.botl = 1;
157.  }
158.  
159.  /*
160.   * Make experience gaining similar to AD&D(tm), whereby you can at most go
161.   * up by one level at a time, extra expr possibly helping you along.
162.   * After all, how much real experience does one get shooting a wand of death
163.   * at a dragon created with a wand of polymorph??
164.   */
165.  void
166.  newexplevel()
167.  {
168.  	if (u.ulevel < MAXULEV && u.uexp >= newuexp(u.ulevel))
169.  	    pluslvl(TRUE);
170.  }
171.  
172.  void
173.  pluslvl(incr)
174.  boolean incr;	/* true iff via incremental experience growth */
175.  {		/*	(false for potion of gain level)      */
176.  	register int num;
177.  
178.  	if (!incr) You_feel("more experienced.");
179.  	num = newhp();
180.  	u.uhpmax += num;
181.  	u.uhp += num;
182.  	if (Upolyd) {
183.  	    num = rnd(8);
184.  	    u.mhmax += num;
185.  	    u.mh += num;
186.  	}
187.  	if (u.ulevel < urole.xlev)
188.  	    num = rn1((int)ACURR(A_WIS)/2 + urole.enadv.lornd + urace.enadv.lornd,
189.  			urole.enadv.lofix + urace.enadv.lofix);
190.  	else
191.  	    num = rn1((int)ACURR(A_WIS)/2 + urole.enadv.hirnd + urace.enadv.hirnd,
192.  			urole.enadv.hifix + urace.enadv.hifix);
193.  	num = enermod(num);	/* M. Stephenson */
194.  	u.uenmax += num;
195.  	u.uen += num;
196.  	if (u.ulevel < MAXULEV) {
197.  	    if (incr) {
198.  		long tmp = newuexp(u.ulevel + 1);
199.  		if (u.uexp >= tmp) u.uexp = tmp - 1;
200.  	    } else {
201.  		u.uexp = newuexp(u.ulevel);
202.  	    }
203.  	    ++u.ulevel;
204.  	    if (u.ulevelmax < u.ulevel) u.ulevelmax = u.ulevel;
205.  	    pline("Welcome to experience level %d.", u.ulevel);
206.  	    adjabil(u.ulevel - 1, u.ulevel);	/* give new intrinsics */
207.  	    reset_rndmonst(NON_PM);		/* new monster selection */
208.  	}
209.  	flags.botl = 1;
210.  }
211.  
212.  long
213.  rndexp()
214.  {
215.  	long minexp, maxexp, diff, factor;
216.  
217.  	minexp = (u.ulevel == 1) ? 0L : newuexp(u.ulevel - 1);
218.  	maxexp = newuexp(u.ulevel);
219.  	diff = maxexp - minexp,  factor = 1L;
220.  	while (diff >= (long)LARGEST_INT)
221.  	    diff /= 2L,  factor *= 2L;
222.  	return minexp + factor * (long)rn2((int)diff);
223.  }
224.  
225.  /*exper.c*/

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