Merge branch 'feature/bug-1588-magicpower-limit' of https://github.com/ennorehling/eressea into ennorehling-feature/bug-1588-magicpower-limit

Conflicts:
	scripts/tests/e2/init.lua
	src/battle.c
	src/bind_unit.c
	src/kernel/spellid.h
	src/magic.c
	src/magic.h

scripts/tests/e2/init.lua

@@ -1,3 +1,4 @@
+require 'tests.e2.spells'
 require 'tests.e2.undead'
 require 'tests.e2.shiplanding'
 require 'tests.e2.e2features'

scripts/tests/e2/spells.lua

@@ -0,0 +1,28 @@
+require "lunit"
+
+module("tests.e2.spells", package.seeall, lunit.testcase)
+
+function setup()
+    eressea.free_game()
+    eressea.settings.set("nmr.removenewbie", "0")
+    eressea.settings.set("nmr.timeout", "0")
+    eressea.settings.set("NewbieImmunity", "0")
+    eressea.settings.set("rules.economy.food", "4")
+end
+
+function test_shapeshift()
+    local r = region.create(42, 0, "plain")
+    local f = faction.create("noreply@eressea.de", "demon", "de")
+    local u1 = unit.create(f, r, 1)
+    local u2 = unit.create(f, r, 1)
+    u1:clear_orders()
+    u1.magic = "gray"
+    u1:set_skill("magic", 2)
+    u1.aura = 1
+    u1:add_spell("shapeshift")
+    u1:add_order("ZAUBERE STUFE 1 Gestaltwandlung " .. itoa36(u2.id) .. " Goblin")
+    process_orders()
+    assert_equal(f.race, u2.race)
+    s = u2:show()
+    assert_equal("1 Goblin", string.sub(s, string.find(s, "1 Goblin")))
+end

src/battle.c

@@ -1869,9 +1869,8 @@ static void do_extra_spell(troop at, const att * a)
         log_error("spell '%s' has no function.\n", sp->sname);
     }
     else {
-        double force = a->level * MagicPower();
         assert(a->level > 0);
-        cast_combatspell(at, sp, a->level, force);
+        cast_combatspell(at, sp, a->level, a->level);
     }
 }
 

src/bind_unit.c

@@ -17,6 +17,7 @@ without prior permission by the authors of Eressea.
 #include "alchemy.h"
 #include "bindings.h"
 #include "move.h"
+#include "reports.h"
 
 /*  attributes includes */
 #include <attributes/racename.h>
@@ -54,6 +55,17 @@ without prior permission by the authors of Eressea.
 #include <stdlib.h>
 #include <limits.h>
 
+static int tolua_bufunit(lua_State * L) {
+    char buf[8192];
+    unit *self = (unit *)tolua_tousertype(L, 1, 0);
+    int mode = (int)tolua_tonumber(L, 2, see_unit);
+    if (!self)  return 0;
+
+    bufunit(self->faction, self, 0, mode, buf, sizeof(buf));
+    tolua_pushstring(L, buf);
+    return 1;
+
+}
 static int tolua_unit_get_objects(lua_State * L)
 {
     unit *self = (unit *)tolua_tousertype(L, 1, 0);
@@ -513,7 +525,7 @@ static void unit_castspell(unit * u, const char *name, int level)
             }
             else {
                 castorder co;
-                create_castorder(&co, u, 0, sp, u->region, level, level * MagicPower(), 0, 0, 0);
+                create_castorder(&co, u, 0, sp, u->region, level, (double)level, 0, 0, 0);
                 sp->cast(&co);
                 free_castorder(&co);
             }
@@ -1034,6 +1046,7 @@ void tolua_unit_open(lua_State * L)
             tolua_variable(L, TOLUA_CAST "hp_max", &tolua_unit_get_hpmax, 0);
 
             tolua_variable(L, TOLUA_CAST "objects", &tolua_unit_get_objects, 0);
+            tolua_function(L, TOLUA_CAST "show", &tolua_bufunit);
         }
         tolua_endmodule(L);
     }

src/kernel/race.h

@@ -120,7 +120,6 @@ extern "C" {
     extern int num_races;
 
     typedef struct race {
-        struct param *parameters;
         char *_name;
         float magres;
         double maxaura;            /* Faktor auf Maximale Aura */
@@ -141,6 +140,7 @@ extern "C" {
         int df_default;             /* Verteidigungsskill Unbewaffnet (default: -2) */
         int at_bonus;               /* Verändert den Angriffsskill (default: 0) */
         int df_bonus;               /* Verändert den Verteidigungskill (default: 0) */
+        struct param *parameters;   // additional properties, for an example see natural_armor
         const struct spell *precombatspell;
         signed char *study_speed;   /* study-speed-bonus in points/turn (0=30 Tage) */
         int flags;

src/kernel/spellid.h

@@ -1,176 +0,0 @@
-/* 
-* +-------------------+  Christian Schlittchen <corwin@amber.kn-bremen.de>
-* |                   |  Enno Rehling <enno@eressea.de>
-* | Eressea PBEM host |  Katja Zedel <katze@felidae.kn-bremen.de>
-* | (c) 1998 - 2005   |  
-* |                   |  This program may not be used, modified or distributed
-* +-------------------+  without prior permission by the authors of Eressea.
-*  
-*/
-
-#ifndef H_KRNL_SPELLID
-#define H_KRNL_SPELLID
-
-/* Sprüche. Neue NUR hinten anfügen, oder das Datenfile geht kaputt */
-enum {
-  SPL_NOSPELL = 0,
-  SPL_FIREBALL = 4,
-  SPL_HAGEL,
-  SPL_RUSTWEAPON,
-  SPL_COMBATRUST,
-  SPL_TREEGROW,
-  SPL_HEALING,
-  SPL_HEALINGSONG,
-  SPL_BADDREAMS,
-  SPL_GOODDREAMS,
-  SPL_DREAMREADING,
-  SPL_SWEETDREAMS,
-  SPL_TIREDSOLDIERS,
-  SPL_PLAGUE,
-  SPL_MAGICBOOST,
-  SPL_CHAOSROW,
-  SPL_SONG_OF_CONFUSION,
-  SPL_FLEE,
-  SPL_SONG_OF_FEAR,
-  SPL_BERSERK,
-  SPL_BLOODTHIRST,
-  SPL_MAELSTROM,
-  SPL_TRANSFERAURA_DRUIDE = 27,
-  SPL_TRANSFERAURA_BARDE,
-  SPL_TRANSFERAURA_CHAOS,
-  SPL_TRANSFERAURA_TRAUM,
-  SPL_TRANSFERAURA_ASTRAL,
-  SPL_STONEGOLEM,
-  SPL_IRONGOLEM,
-  SPL_SUMMONSHADOW,
-  SPL_SUMMONSHADOWLORDS,
-  SPL_REELING_ARROWS,
-  SPL_ANTIMAGICZONE = 37,
-  SPL_KAELTESCHUTZ = 39,
-  SPL_STEALAURA,
-  SPL_SUMMONUNDEAD,
-  SPL_AURALEAK,
-  SPL_GREAT_DROUGHT,
-  SPL_STRONG_WALL,
-  SPL_HOMESTONE,
-  SPL_DROUGHT,
-  SPL_FOREST_FIRE = 47,
-  SPL_SUMMONENT = 49,
-  SPL_DISTURBINGDREAMS,
-  SPL_DENYATTACK,
-  SPL_SLEEP,
-  SPL_EARTHQUAKE,
-  SPL_IRONKEEPER,
-  SPL_STORMWINDS,
-  SPL_GOODWINDS,
-  SPL_FLYING_SHIP,
-  SPL_SUMMON_ALP,
-  SPL_WINDSHIELD,
-  SPL_RAISEPEASANTS,
-  SPL_DEPRESSION,
-  SPL_HEADACHE = 62,
-  SPL_ENTERASTRAL = 64,
-  SPL_LEAVEASTRAL,
-  SPL_SHOWASTRAL,
-  SPL_VERSTEINERN,
-  SPL_TREEWALKENTER,
-  SPL_TREEWALKEXIT,
-  SPL_CHAOSSUCTION,
-  SPL_VIEWREALITY,
-  SPL_DISRUPTASTRAL,
-  SPL_SEDUCE,
-  SPL_PUMP,
-  SPL_CALM_MONSTER,
-  SPL_HERO,
-  SPL_FRIGHTEN,
-  SPL_MINDBLAST,
-  SPL_SPEED,
-  SPL_SPEED2,
-  SPL_FIREDRAGONODEM,
-  SPL_DRAGONODEM,
-  SPL_WYRMODEM,                 /* 83 */
-  SPL_MAGICSTREET,
-  SPL_REANIMATE,
-  SPL_RECRUIT,
-  SPL_GENEROUS,
-  SPL_PERMTRANSFER,
-  SPL_SONG_OF_PEACE,
-  SPL_MIGRANT,
-  SPL_RALLYPEASANTMOB,
-  SPL_RAISEPEASANTMOB,
-  SPL_ILL_SHAPESHIFT,
-  SPL_WOLFHOWL,
-  SPL_FOG_OF_CONFUSION,
-  SPL_DREAM_OF_CONFUSION,
-  SPL_RESISTMAGICBONUS,
-  SPL_KEEPLOOT,
-  SPL_SCHILDRUNEN,
-  SPL_SONG_RESISTMAGIC,
-  SPL_SONG_SUSCEPTMAGIC,
-  SPL_ANALYSEMAGIC,
-  SPL_ANALYSEDREAM,
-  SPL_UNIT_ANALYSESONG,
-  SPL_OBJ_ANALYSESONG,
-  SPL_TYBIED_DESTROY_MAGIC,
-  SPL_DESTROY_MAGIC,
-  SPL_METEORRAIN,
-  SPL_REDUCESHIELD,
-  SPL_ARMORSHIELD,
-  SPL_DEATHCLOUD,
-  SPL_ORKDREAM,
-  SPL_SUMMONDRAGON = 113,
-  SPL_MOVECASTLE = 116,
-  SPL_BLESSSTONECIRCLE,
-  SPL_ILLAUN_FAMILIAR,
-  SPL_GWYRRD_FAMILIAR,
-  SPL_DRAIG_FAMILIAR,
-  SPL_CERDDOR_FAMILIAR,
-  SPL_TYBIED_FAMILIAR,
-  SPL_SONG_OF_ENSLAVE = 123,
-  SPL_FUMBLECURSE = 136,
-  SPL_ICASTLE,
-  SPL_GWYRRD_DESTROY_MAGIC,
-  SPL_DRAIG_DESTROY_MAGIC,
-  SPL_ILLAUN_DESTROY_MAGIC,
-  SPL_CERDDOR_DESTROY_MAGIC,
-  SPL_GWYRRD_ARMORSHIELD,
-  SPL_DRAIG_FUMBLESHIELD,
-  SPL_GWYRRD_FUMBLESHIELD,
-  SPL_CERDDOR_FUMBLESHIELD,
-  SPL_TYBIED_FUMBLESHIELD,
-  SPL_SHADOWKNIGHTS = 147,
-  SPL_ITEMCLOAK = 150,
-  SPL_FIREWALL,
-  SPL_WISPS,
-  SPL_SPARKLE_CHAOS,
-  SPL_SPARKLE_DREAM = 154,
-  SPL_PULLASTRAL = 156,
-  SPL_FETCHASTRAL = 157,
-  SPL_SHOCKWAVE = 163,
-  SPL_UNDEADHERO = 164,
-  SPL_BECOMEWYRM = 166,
-  SPL_ETERNIZEWALL,
-  SPL_PUTTOREST,
-  SPL_UNHOLYPOWER,
-  SPL_HOLYGROUND,
-  SPL_BLOODSACRIFICE,
-  SPL_MALLORN,
-  SPL_CLONECOPY,
-  SPL_DRAINODEM,
-  SPL_AURA_OF_FEAR,
-  SPL_SHADOWCALL,
-  SPL_MALLORNTREEGROW = 177,
-  SPL_BIGRECRUIT = 179,
-  SPL_IMMOLATION,
-  SPL_FIREODEM,                 /* 181 */
-  SPL_ICEODEM,
-  SPL_ACIDODEM,
-  /* no longer used, but kept for reference: */
-  XMLSPL_WDWPYRAMID_TRAUM = 184,
-  XMLSPL_WDWPYRAMID_ASTRAL = 185,
-  XMLSPL_WDWPYRAMID_DRUIDE = 186,
-  XMLSPL_WDWPYRAMID_BARDE = 187,
-  XMLSPL_WDWPYRAMID_CHAOS = 188
-};
-
-#endif

src/magic.c

@@ -118,14 +118,14 @@ static float MagicRegeneration(void)
     return value;
 }
 
-double MagicPower(void)
+static double MagicPower(double force)
 {
-    static double value = -1.0;
+    if (force > 0) {
-    if (value < 0) {
         const char *str = get_param(global.parameters, "magic.power");
-        value = str ? atof(str) : 1.0;
+        double value = str ? atof(str) : 1.0;
+        return _max(value * force, 1.0f);
     }
-    return value;
+    return 0;
 }
 
 static int a_readicastle(attrib * a, void *owner, struct storage *store)
@@ -1075,8 +1075,6 @@ spellpower(region * r, unit * u, const spell * sp, int cast_level, struct order
         }
     }
 
-    force = force * MagicPower();
-
     return _max(force, 0);
 }
 
@@ -2074,7 +2072,7 @@ castorder *create_castorder(castorder * co, unit *caster, unit * familiar, const
     co->_familiar = familiar;
     co->sp = sp;
     co->level = lev;
-    co->force = force;
+    co->force = MagicPower(force);
     co->_rtarget = r ? r : (familiar ? familiar->region : (caster ? caster->region : 0));
     co->distance = range;
     co->order = copy_order(ord);
@@ -2824,7 +2822,7 @@ void magic(void)
                 continue;
             }
 
-            co->force = spellpower(target_r, u, sp, co->level, ord);
+            co->force = MagicPower(spellpower(target_r, u, sp, co->level, ord));
             /* die Stärke kann durch Antimagie auf 0 sinken */
             if (co->force <= 0) {
                 co->force = 0;

src/magic.h

@@ -360,7 +360,6 @@ extern "C" {
     extern void write_spells(struct quicklist *slist, struct storage *store);
     extern void read_spells(struct quicklist **slistp, magic_t mtype,
     struct storage *store);
-    extern double MagicPower(void);
 
     extern struct spellbook * get_spellbook(const char * name);
     extern void free_spellbooks(void);

src/spells.c

@@ -36,7 +36,6 @@
 #include <kernel/connection.h>
 #include <kernel/building.h>
 #include <kernel/curse.h>
-#include <kernel/spellid.h>
 #include <kernel/faction.h>
 #include <kernel/item.h>
 #include <kernel/messages.h>
@@ -6647,7 +6646,6 @@ static spelldata spell_functions[] = {
     { "firestorm", sp_immolation, 0 },
     { "coldfront", sp_immolation, 0 },
     { "acidrain", sp_immolation, 0 },
-    /* SPL_NOSPELL  MUSS der letzte Spruch der Liste sein */
     { 0, 0, 0 }
 };
 

src/spells/combatspells.c

@@ -25,7 +25,6 @@
 #include <kernel/region.h>
 #include <kernel/unit.h>
 #include <kernel/spell.h>
-#include <kernel/spellid.h>
 #include <kernel/race.h>
 #include <kernel/terrain.h>
 
@@ -47,6 +46,30 @@
 
 #define EFFECT_HEALING_SPELL     5
 
+// Some spells with a fixed, known ID (in XML).
+// TODO: this method of identifying spells is error-prone, do not use it for new spells.
+enum {
+    SPL_FIREBALL = 4,
+    SPL_HAGEL = 5,
+    SPL_CHAOSROW = 18,
+    SPL_FLEE = 20,
+    SPL_SONG_OF_FEAR = 21,
+    SPL_BERSERK = 22,
+    SPL_BLOODTHIRST = 23,
+    SPL_WINDSHIELD = 59,
+    SPL_HERO = 76,
+    SPL_METEORRAIN = 108,
+    SPL_REDUCESHIELD = 109,
+    SPL_ARMORSHIELD = 110,
+    SPL_DRAIG_FUMBLESHIELD = 143,
+    SPL_GWYRRD_FUMBLESHIELD = 144,
+    SPL_CERDDOR_FUMBLESHIELD = 145,
+    SPL_TYBIED_FUMBLESHIELD = 146,
+    SPL_SHADOWKNIGHTS = 147,
+    SPL_SHOCKWAVE = 163,
+    SPL_AURA_OF_FEAR = 175
+};
+
 /* ------------------------------------------------------------------ */
 /* Kampfzauberfunktionen */