/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Copyright (C) 1986-2009, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
*
* ---
*
- * landgun.c: Return values for land and ship gun firing damages
- *
+ * landgun.c: Fire weapons
+ *
* Known contributors to this file:
- * Markus Armbruster, 2006
+ * Markus Armbruster, 2006-2009
*/
#include <config.h>
fort_fire(struct sctstr *sp)
{
int guns = sp->sct_item[I_GUN];
- int shells;
if (sp->sct_type != SCT_FORTR || sp->sct_effic < FORTEFF)
return -1;
if (sp->sct_item[I_MILIT] < 5 || guns == 0)
return -1;
- shells = sp->sct_item[I_SHELL];
- shells += supply_commod(sp->sct_own, sp->sct_x, sp->sct_y,
- I_SHELL, 1 - shells);
- if (shells == 0)
+ if (!sct_supply(sp, I_SHELL, 1))
return -1;
- sp->sct_item[I_SHELL] = shells - 1;
+ sp->sct_item[I_SHELL]--;
return (int)fortgun(sp->sct_effic, guns);
}
int
shp_fire(struct shpstr *sp)
{
- int guns, shells;
+ int guns;
if (sp->shp_effic < 60)
return -1;
guns = MIN(guns, (sp->shp_item[I_MILIT] + 1) / 2);
if (guns == 0)
return -1;
- shells = sp->shp_item[I_SHELL];
- shells += supply_commod(sp->shp_own, sp->shp_x, sp->shp_y,
- I_SHELL, (guns + 1) / 2 - shells);
- guns = MIN(guns, shells * 2);
+ shp_supply(sp, I_SHELL, (guns + 1) / 2);
+ guns = MIN(guns, sp->shp_item[I_SHELL] * 2);
if (guns == 0)
return -1;
- sp->shp_item[I_SHELL] = shells - (guns + 1) / 2;
+ sp->shp_item[I_SHELL] -= (guns + 1) / 2;
return (int)seagun(sp->shp_effic, guns);
}
int
shp_dchrg(struct shpstr *sp)
{
- int shells;
+ int dchrgs;
if (sp->shp_effic < 60 || (mchr[sp->shp_type].m_flags & M_DCH) == 0)
return -1;
if (sp->shp_item[I_MILIT] == 0)
return -1;
- shells = sp->shp_item[I_SHELL];
- shells += supply_commod(sp->shp_own, sp->shp_x, sp->shp_y,
- I_SHELL, 2 - shells);
- if (shells < 2)
- return -1;
- sp->shp_item[I_SHELL] = shells - 2;
- return (int)seagun(sp->shp_effic, 3);
+ shp_supply(sp, I_SHELL, 2);
+ dchrgs = MIN(2, sp->shp_item[I_SHELL]);
+ if (dchrgs == 0)
+ return -1;
+ sp->shp_item[I_SHELL] -= dchrgs;
+ return (int)seagun(sp->shp_effic, 2 * dchrgs - 1);
}
/*
int
shp_torp(struct shpstr *sp, int usemob)
{
- int shells;
-
if (sp->shp_effic < 60 || (mchr[sp->shp_type].m_flags & M_TORP) == 0)
return -1;
if (sp->shp_item[I_MILIT] == 0 || sp->shp_item[I_GUN] == 0)
return -1;
if (usemob && sp->shp_mobil <= 0)
return -1;
- shells = sp->shp_item[I_SHELL];
- shells += supply_commod(sp->shp_own, sp->shp_x, sp->shp_y,
- I_SHELL, SHP_TORP_SHELLS - shells);
- if (shells < SHP_TORP_SHELLS)
- return -1;
- sp->shp_item[I_SHELL] = shells - SHP_TORP_SHELLS;
+ if (!shp_supply(sp, I_SHELL, SHP_TORP_SHELLS))
+ return -1;
+ sp->shp_item[I_SHELL] -= SHP_TORP_SHELLS;
if (usemob)
sp->shp_mobil -= (int)shp_mobcost(sp) / 2.0;
return TORP_DAMAGE();
int
lnd_fire(struct lndstr *lp)
{
- int guns, shells;
+ int guns, ammo, shells;
double d;
- int ammo = lchr[lp->lnd_type].l_ammo;
-
- if (CANT_HAPPEN(ammo == 0))
- ammo = 1;
if (lp->lnd_effic < LAND_MINFIREEFF)
return -1;
return -1;
if (lp->lnd_item[I_MILIT] == 0)
return -1;
- guns = lp->lnd_dam;
+ guns = lnd_dam(lp);
guns = MIN(guns, lp->lnd_item[I_GUN]);
if (guns == 0)
return -1;
+ ammo = lchr[lp->lnd_type].l_ammo;
+ if (CANT_HAPPEN(ammo == 0))
+ ammo = 1;
+ lnd_supply(lp, I_SHELL, ammo);
shells = lp->lnd_item[I_SHELL];
- shells += supply_commod(lp->lnd_own, lp->lnd_x, lp->lnd_y,
- I_SHELL, ammo - shells);
if (shells == 0)
return -1;
d = landunitgun(lp->lnd_effic, guns);
d *= (double)shells / (double)ammo;
ammo = shells;
}
- lp->lnd_item[I_SHELL] = shells - ammo;
+ lp->lnd_item[I_SHELL] -= ammo;
return d;
}
int
shp_usable_guns(struct shpstr *sp)
{
- return MIN(sp->shp_glim, sp->shp_item[I_GUN]);
+ return MIN(shp_glim(sp), sp->shp_item[I_GUN]);
}
/*
double
shp_fire_range(struct shpstr *sp)
{
- return effrange(sp->shp_frnge, sp->shp_tech);
+ return effrange(shp_frnge(sp), sp->shp_tech);
}
/*
double
torprange(struct shpstr *sp)
{
- return effrange(sp->shp_frnge * 2, sp->shp_tech)
+ return effrange(shp_frnge(sp) * 2, sp->shp_tech)
* sp->shp_effic / 100.0;
}
double
shp_torp_hitchance(struct shpstr *sp, int range)
{
- return DTORP_HITCHANCE(range, sp->shp_visib);
+ return DTORP_HITCHANCE(range, shp_visib(sp));
}
/*
double
lnd_fire_range(struct lndstr *lp)
{
- return effrange(lp->lnd_frg, lp->lnd_tech);
+ return effrange(lnd_frg(lp), lp->lnd_tech);
}
int