https://bugs.eressea.de/view.php?id=2729

castles were giving too much protection.

src/battle.c

@@ -3267,7 +3267,7 @@ fighter *make_fighter(battle * b, unit * u, side * s1, bool attack)
         for (itm = u->items; itm; itm = itm->next) {
             if (itm->type->rtype->atype) {
                 if (i_canuse(u, itm->type)) {
-                    struct armor *adata = (struct armor *)malloc(sizeof(armor)), **aptr;
+                    struct armor *adata = malloc(sizeof(armor)), **aptr;
                     adata->atype = itm->type->rtype->atype;
                     adata->count = itm->number;
                     for (aptr = &fig->armors; *aptr; aptr = &(*aptr)->next) {

src/battle.test.c

@@ -186,20 +186,7 @@ static void test_select_armor(CuTest *tc) {
 }
 
 static building_type * setup_castle(void) {
-    building_type * btype;
-    construction *cons;
-
-    btype = test_create_buildingtype("castle");
-    assert(btype->stages);
-
-    btype->flags |= BTF_FORTIFICATION;
-    cons = &btype->stages->construction;
-    cons->maxsize = 5;
-    btype->stages->next = calloc(1, sizeof(building_stage));
-    assert(btype->stages->next);
-    cons = &btype->stages->next->construction;
-    cons->maxsize = -1;
-    return btype;
+    return test_create_castle();
 }
 
 static void test_defenders_get_building_bonus(CuTest * tc)
@@ -236,11 +223,16 @@ static void test_defenders_get_building_bonus(CuTest * tc)
     at.fighter = af;
     at.index = 0;
 
-    bld->size = 10; /* stage 1 building */
-    CuAssertIntEquals(tc, 1, buildingeffsize(bld, false));
+    bld->size = 10; /* stage 2 building */
+    CuAssertIntEquals(tc, 2, buildingeffsize(bld, false));
     CuAssertIntEquals(tc, -1, skilldiff(at, dt, 0));
     CuAssertIntEquals(tc, 0, skilldiff(dt, at, 0));
 
+    bld->size = 9; /* stage 1 building */
+    CuAssertIntEquals(tc, 1, buildingeffsize(bld, false));
+    CuAssertIntEquals(tc, 0, skilldiff(at, dt, 0));
+    CuAssertIntEquals(tc, 0, skilldiff(dt, at, 0));
+
     bld->size = 1; /* stage 0 building */
     CuAssertIntEquals(tc, 0, buildingeffsize(bld, false));
     CuAssertIntEquals(tc, 0, skilldiff(at, dt, 0));
@@ -323,14 +315,15 @@ static void test_building_defense_bonus(CuTest * tc)
     test_setup();
     btype = setup_castle();
 
-    btype->maxsize = -1; /* unlimited buildigs get the castle bonus */
+    btype->maxsize = -1; /* unlimited buildings get the castle bonus */
     CuAssertIntEquals(tc, 0, bt_protection(btype, 0));
-    CuAssertIntEquals(tc, 1, bt_protection(btype, 1));
-    CuAssertIntEquals(tc, 3, bt_protection(btype, 2));
-    CuAssertIntEquals(tc, 5, bt_protection(btype, 3));
-    CuAssertIntEquals(tc, 8, bt_protection(btype, 4));
-    CuAssertIntEquals(tc, 12, bt_protection(btype, 5));
-    CuAssertIntEquals(tc, 12, bt_protection(btype, 6));
+    CuAssertIntEquals(tc, 0, bt_protection(btype, 1));
+    CuAssertIntEquals(tc, 1, bt_protection(btype, 2));
+    CuAssertIntEquals(tc, 2, bt_protection(btype, 3));
+    CuAssertIntEquals(tc, 3, bt_protection(btype, 4));
+    CuAssertIntEquals(tc, 4, bt_protection(btype, 5));
+    CuAssertIntEquals(tc, 5, bt_protection(btype, 6));
+    CuAssertIntEquals(tc, 5, bt_protection(btype, 7)); /* illegal castle size */
 
     btype->maxsize = 10; /* limited-size buildings are treated like an E3 watchtower */
     CuAssertIntEquals(tc, 0, bt_protection(btype, 0));
@@ -748,7 +741,8 @@ static void test_battle_skilldiff_building(CuTest *tc)
     CuAssertIntEquals(tc, 0, skilldiff(ta, td, 0));
 
     ud->building->size = 10;
-    CuAssertIntEquals(tc, 1, buildingeffsize(ud->building, false));
+    CuAssertIntEquals(tc, 2, buildingeffsize(ud->building, false));
+    CuAssertIntEquals(tc, 1, building_protection(ud->building));
     CuAssertIntEquals(tc, -1, skilldiff(ta, td, 0));
 
     create_curse(NULL, &ud->building->attribs, &ct_magicwalls, 1, 1, 1, 1);

src/kernel/build.c

@@ -1010,6 +1010,13 @@ void continue_ship(unit * u, int want)
     build_ship(u, sh, want);
 }
 
+void construction_init(struct construction *con, int minskill, skill_t sk, int reqsize, int maxsize) {
+    con->minskill = minskill;
+    con->skill = sk;
+    con->reqsize = reqsize;
+    con->maxsize = maxsize;
+}
+
 void free_construction(struct construction *cons)
 {
     free(cons->materials);

src/kernel/build.h

@@ -28,6 +28,7 @@ extern "C" {
         requirement *materials;     /* material req'd to build one object */
     } construction;
 
+    void construction_init(struct construction *con, int minskill, skill_t sk, int reqsize, int maxsize);
     void free_construction(struct construction *cons);
     int destroy_cmd(struct unit *u, struct order *ord);
     int leave_cmd(struct unit *u, struct order *ord);

src/kernel/building.c

@@ -316,22 +316,24 @@ int cmp_castle_size(const building * b, const building * a)
     return b->size - a->size;
 }
 
-static const int castle_bonus[6] = { 0, 1, 3, 5, 8, 12 };
+static const int castle_bonus[7] = { 0, 0, 1, 2, 3, 4, 5 };
 static const int watch_bonus[3] = { 0, 1, 2 };
 
 int bt_protection(const building_type * btype, int stage)
 {
-    assert(btype->flags & BTF_FORTIFICATION);
-    if (btype->maxsize < 0) {
-        if (stage > 5) {
-            stage = 5;
+    if (btype->flags & BTF_FORTIFICATION) {
+        if (btype->maxsize < 0) {
+            if (stage >= 7) {
+                stage = 6;
+            }
+            return castle_bonus[stage];
         }
-        return castle_bonus[stage];
+        if (stage > 2) {
+            stage = 2;
+        }
+        return watch_bonus[stage];
     }
-    if (stage > 2) {
-        stage = 2;
-    }
-    return watch_bonus[stage];
+    return 0;
 }
 
 int building_protection(const building* b) {

src/tests.c

@@ -10,6 +10,7 @@
 #include "reports.h"
 #include "vortex.h"
 
+#include "kernel/build.h"
 #include "kernel/calendar.h"
 #include "kernel/callbacks.h"
 #include "kernel/config.h"
@@ -39,6 +40,7 @@
 #include "util/message.h"
 #include "util/log.h"
 #include "util/stats.h"
+#include "util/strings.h"
 #include "util/param.h"
 #include "util/rand.h"
 
@@ -398,23 +400,27 @@ ship_type * test_create_shiptype(const char * name)
 
 building_type * test_create_buildingtype(const char * name)
 {
-    construction *con;
+    construction *con = NULL;
     building_type *btype = bt_get_or_create(name);
     if (btype->stages) {
         con = &btype->stages->construction;
     } else {
-        btype->stages = calloc(1, sizeof(building_stage));
-        con = &btype->stages->construction;
-        con->skill = SK_BUILDING;
-        con->maxsize = -1;
-        con->minskill = 1;
-        con->reqsize = 1;
+        btype->stages = malloc(sizeof(building_stage));
+        if (btype->stages) {
+            con = &btype->stages->construction;
+            con->materials = NULL;
+            construction_init(con, 1, SK_BUILDING, 1, -1);
+            btype->stages->name = NULL;
+            btype->stages->next = NULL;
+        }
     }
     if (con && !con->materials) {
-        con->materials = (requirement *)calloc(2, sizeof(requirement));
-        con->materials[1].number = 0;
-        con->materials[0].number = 1;
-        con->materials[0].rtype = get_resourcetype(R_STONE);
+        con->materials = malloc(2 * sizeof(requirement));
+        if (con->materials) {
+            con->materials[0].number = 1;
+            con->materials[0].rtype = get_resourcetype(R_STONE);
+            con->materials[1].number = 0;
+        }
     }
     if (default_locale) {
         if (locale_getstring(default_locale, name) == NULL) {
@@ -424,6 +430,46 @@ building_type * test_create_buildingtype(const char * name)
     return btype;
 }
 
+static building_stage **init_stage(building_stage **stage_p, int minskill, int maxsize,
+    const char *name, const resource_type *rtype)
+{
+    building_stage *stage = malloc(sizeof(building_stage));
+    assert(stage);
+    stage->name = str_strdup(name);
+    construction_init(&stage->construction, minskill, SK_BUILDING, 1, maxsize);
+    stage->construction.materials = malloc(2 * sizeof(requirement));
+    if (stage->construction.materials) {
+        stage->construction.materials[0].number = 1;
+        stage->construction.materials[0].rtype = rtype;
+        stage->construction.materials[1].number = 0;
+    }
+    *stage_p = stage;
+    return &stage->next;
+}
+
+building_type *test_create_castle(void) {
+    building_type *btype = bt_get_or_create("castle");
+    const resource_type *rtype = get_resourcetype(R_STONE);
+    if (!rtype) {
+        rtype = test_create_itemtype("stone")->rtype;
+    }
+
+    if (!btype->stages) {
+        building_stage **stage_p = &btype->stages;
+        btype->flags |= BTF_FORTIFICATION;
+        stage_p = init_stage(stage_p, 1, 2, "site", rtype);
+        stage_p = init_stage(stage_p, 1, 8, "tradepost", rtype);
+        stage_p = init_stage(stage_p, 2, 40, "fortification", rtype);
+        stage_p = init_stage(stage_p, 3, 200, "tower", rtype);
+        stage_p = init_stage(stage_p, 4, 1000, "castle", rtype);
+        stage_p = init_stage(stage_p, 5, 5000, "fortress", rtype);
+        stage_p = init_stage(stage_p, 6, -1, "citadel", rtype);
+        *stage_p = NULL;
+    }
+    return btype;
+}
+
+
 item_type * test_create_itemtype(const char * name) {
     resource_type * rtype;
     item_type * itype;
@@ -551,7 +597,7 @@ void test_create_world(void)
         }
     }
 
-    test_create_buildingtype("castle");
+    test_create_castle();
     test_create_shiptype("boat");
 }
 

src/tests.h

@@ -59,6 +59,7 @@ extern "C" {
     struct item_type * test_create_itemtype(const char * name);
     struct ship_type *test_create_shiptype(const char * name);
     struct building_type *test_create_buildingtype(const char *name);
+    struct building_type* test_create_castle(void);
     void test_create_castorder(struct castorder *co, struct unit *u, int level, float force, int range, struct spellparameter *par);
     struct spell * test_create_spell(void);
     int test_set_item(struct unit * u, const struct item_type *itype, int value);