Merge branch 'stm2-massive_overload' into develop

res/core/messages.xml

@@ -1615,6 +1615,13 @@
     <text locale="de">"Die $ship($ship) wird bei einer Kollision mit einem Eisberg beschädigt."</text>
     <text locale="en">"The $ship($ship) has been damaged by a collision with an iceberg."</text>
   </message>
+  <message name="massive_overload" section="events">
+    <type>
+      <arg name="ship" type="ship"/>
+    </type>
+    <text locale="de">"Die $ship($ship) ist zu stark überladen und wird stark beschädigt."</text>
+    <text locale="en">"The $ship($ship) is massively overloaded and is damaged heavily."</text>
+  </message>
   <message name="ship_drift" section="events">
     <type>
       <arg name="ship" type="ship"/>

src/bind_ship.c

@@ -192,6 +192,20 @@ static int tolua_ship_get_type(lua_State * L)
     return 1;
 }
 
+static int tolua_ship_get_damage(lua_State * L)
+{
+    ship *self = (ship *)tolua_tousertype(L, 1, 0);
+    lua_pushinteger(L, self->damage);
+    return 1;
+}
+
+static int tolua_ship_set_damage(lua_State * L)
+{
+    ship *self = (ship *)tolua_tousertype(L, 1, 0);
+    self->damage = (int)tolua_tonumber(L, 2, 0);
+    return 0;
+}
+
 void tolua_ship_open(lua_State * L)
 {
     /* register user types */
@@ -217,6 +231,9 @@ void tolua_ship_open(lua_State * L)
             tolua_variable(L, TOLUA_CAST "coast", tolua_ship_get_coast,
                 tolua_ship_set_coast);
             tolua_variable(L, TOLUA_CAST "type", tolua_ship_get_type, 0);
+            tolua_variable(L, TOLUA_CAST "damage", tolua_ship_get_damage,
+                tolua_ship_set_damage);
+
 #ifdef TODO
             .property("weight", &ship_getweight)
                 .property("capacity", &ship_getcapacity)

src/kernel/ship.c

@@ -172,7 +172,7 @@ struct ship *findshipr(const region * r, int n)
 void damage_ship(ship * sh, double percent)
 {
     double damage =
-        DAMAGE_SCALE * sh->type->damage * percent * sh->size + sh->damage;
+        DAMAGE_SCALE * sh->type->damage * percent * sh->size + sh->damage + .000001;
     sh->damage = (int)damage;
 }
 
@@ -469,3 +469,7 @@ const char *ship_getname(const ship * self)
 {
     return self->name;
 }
+
+int ship_damage_percent(const ship *ship) {
+    return (ship->damage * 100 + DAMAGE_SCALE - 1) / (ship->size * DAMAGE_SCALE);
+}

src/kernel/ship.h

@@ -126,6 +126,8 @@ extern "C" {
     void ship_setname(struct ship *self, const char *name);
     int shipspeed(const struct ship *sh, const struct unit *u);
     int crew_skill(const struct ship *sh);
+
+    int ship_damage_percent(const struct ship *ship);
 #ifdef __cplusplus
 }
 #endif

src/move.c

@@ -81,6 +81,7 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <stdlib.h>
 #include <string.h>
 #include <limits.h>
+#include <float.h>
 
 /* Bewegungsweiten: */
 #define BP_WALKING 4
@@ -482,6 +483,27 @@ static bool cansail(const region * r, ship * sh)
     return true;
 }
 
+static double overload(const region * r, ship * sh)
+{
+    /* sonst ist construction:: size nicht ship_type::maxsize */
+    assert(!sh->type->construction
+        || sh->type->construction->improvement == NULL);
+
+    if (sh->type->construction && sh->size != sh->type->construction->maxsize) {
+        return DBL_MAX;
+    } else {
+        int n = 0, p = 0;
+        int mcabins = sh->type->cabins;
+
+        getshipweight(sh, &n, &p);
+
+        double ovl = n / (double)sh->type->cargo;
+        if (mcabins)
+            ovl = _max(ovl, p / (double)mcabins);
+        return ovl;
+    }
+}
+
 int enoughsailors(const ship * sh, int crew_skill)
 {
     return crew_skill >= sh->type->sumskill;
@@ -699,10 +721,69 @@ static void set_coast(ship * sh, region * r, region * rnext)
     }
 }
 
+static double overload_start(void) {
+    return config_get_flt("rules.ship.overload.start", 1.1);
+}
+
+static double overload_worse(void) {
+    return config_get_flt("rules.ship.overload.worse", 1.5);
+}
+
+static double overload_worst(void) {
+    return config_get_flt("rules.ship.overload.worst", 5.0);
+}
+
+static double overload_default_damage(void) {
+    return config_get_flt("rules.ship.overload.damage.default", 0.05);
+}
+
+static double overload_max_damage(void) {
+    return config_get_flt("rules.ship.overload.damage.max", 0.37);
+}
+
+double damage_overload(double overload)
+{
+    double damage, badness;
+    if (overload < overload_start())
+        return 0;
+    damage = overload_default_damage();
+    badness = overload - overload_worse();
+    if (badness >= 0) {
+        assert(overload_worst() > overload_worse() || !"overload.worst must be > overload.worse");
+        damage += _min(badness, overload_worst() - overload_worse()) *
+            (overload_max_damage() - damage) /
+            (overload_worst() - overload_worse());
+    }
+    return damage;
+}
+
+/* message to all factions in ship, start from firstu, end before lastu (may be NULL) */
+static void msg_to_ship_inmates(ship *sh, unit **firstu, unit **lastu, message *msg) {
+    unit *u, *shipfirst = NULL;
+    for (u = *firstu; u != *lastu; u = u->next) {
+        if (u->ship == sh) {
+            if (shipfirst == NULL)
+                shipfirst = u;
+            if (!fval(u->faction, FFL_MARK)) {
+                fset(u->faction, FFL_MARK);
+                add_message(&u->faction->msgs, msg);
+            }
+            *lastu = u->next;
+        }
+    }
+    if (shipfirst)
+        *firstu = shipfirst;
+    for (u = *firstu; u != *lastu; u = u->next) {
+        freset(u->faction, FFL_MARK);
+    }
+    msg_release(msg);
+}
+
 static void drifting_ships(region * r)
 {
     direction_t d;
     bool drift = config_get_int("rules.ship.drifting", 1) != 0;
+    double damage_drift = config_get_flt("rules.ship.damage_drift", 0.02);
 
     if (fval(r->terrain, SEA_REGION)) {
         ship **shp = &r->ships;
@@ -710,9 +791,10 @@ static void drifting_ships(region * r)
             ship *sh = *shp;
             region *rnext = NULL;
             region_list *route = NULL;
-            unit *firstu = NULL, *captain;
+            unit *firstu = r->units, *lastu = NULL, *captain;
             int d_offset;
             direction_t dir = 0;
+            double ovl;
 
             if (sh->type->fishing > 0) {
                 sh->flags |= SF_FISHING;
@@ -725,15 +807,10 @@ static void drifting_ships(region * r)
             }
 
             /* Kapitän bestimmen */
-            for (captain = r->units; captain; captain = captain->next) {
+            captain = ship_owner(sh);
-                if (captain->ship != sh)
+            if (effskill(captain, SK_SAILING, r) < sh->type->cptskill)
-                    continue;
+               captain = NULL;
-                if (firstu == NULL)
+
-                    firstu = captain;
-                if (effskill(captain, SK_SAILING, r) >= sh->type->cptskill) {
-                    break;
-                }
-            }
             /* Kapitän da? Beschädigt? Genügend Matrosen?
              * Genügend leicht? Dann ist alles OK. */
 
@@ -744,9 +821,13 @@ static void drifting_ships(region * r)
                 continue;
             }
 
+            ovl = overload(r, sh);
+            if (ovl >= overload_start()) {
+                rnext = NULL;
+            } else {
                 /* Auswahl einer Richtung: Zuerst auf Land, dann
                  * zufällig. Falls unmögliches Resultat: vergiß es. */
-            d_offset = rng_int() % MAXDIRECTIONS;
+                d_offset = rng_int () % MAXDIRECTIONS;
                 for (d = 0; d != MAXDIRECTIONS; ++d) {
                     region *rn;
                     dir = (direction_t)((d + d_offset) % MAXDIRECTIONS);
@@ -757,12 +838,10 @@ static void drifting_ships(region * r)
                             break;
                     }
                 }
-
-            if (rnext == NULL) {
-                shp = &sh->next;
-                continue;
             }
 
+            if (rnext != NULL) {
+
                 /* Das Schiff und alle Einheiten darin werden nun von r
                  * nach rnext verschoben. Danach eine Meldung. */
                 add_regionlist(&route, rnext);
@@ -772,23 +851,22 @@ static void drifting_ships(region * r)
                 free_regionlist(route);
 
                 if (firstu != NULL) {
-                unit *u, *lastu = NULL;
                     message *msg = msg_message("ship_drift", "ship dir", sh, dir);
-                for (u = firstu; u; u = u->next) {
+                    msg_to_ship_inmates(sh, &firstu, &lastu, msg);
-                    if (u->ship == sh && !fval(u->faction, FFL_MARK)) {
-                        fset(u->faction, FFL_MARK);
-                        add_message(&u->faction->msgs, msg);
-                        lastu = u->next;
                 }
             }
-                for (u = firstu; u != lastu; u = u->next) {
-                    freset(u->faction, FFL_MARK);
-                }
-                msg_release(msg);
-            }
 
             if (sh != NULL) {
                 fset(sh, SF_DRIFTED);
+                if (ovl >= overload_start()) {
+                    damage_ship(sh, damage_overload(ovl));
+                    msg_to_ship_inmates(sh, &firstu, &lastu, msg_message("massive_overload", "ship", sh));
+                } else
+                    damage_ship(sh, damage_drift);
+                if (sh->damage >= sh->size * DAMAGE_SCALE) {
+                    msg_to_ship_inmates(sh, &firstu, &lastu, msg_message("shipsink", "ship", sh));
+                    remove_ship(&sh->region->ships, sh);
+                }
             }
 
             if (*shp == sh)

src/move.test.c

@@ -279,6 +279,157 @@ static void test_age_trails(CuTest *tc) {
     test_cleanup();
 }
 
+struct drift_fixture {
+    faction *f;
+    region *r;
+    unit *u;
+    terrain_type *t_ocean;
+    ship_type *st_boat;
+    struct locale *lang;
+    ship *sh;
+
+};
+
+void setup_drift (struct drift_fixture *fix) {
+    test_cleanup();
+    config_set("rules.ship.storms", "0");
+    fix->lang = get_or_create_locale("de");
+
+    test_create_world();
+    test_create_shiptype("drifter");
+    fix->st_boat = st_get_or_create("drifter");
+    fix->st_boat->cabins = 20000;
+
+    fix->u = test_create_unit(fix->f = test_create_faction(0), fix->r=findregion(-1,0));
+    assert(fix->r && fix->r->terrain->flags & SAIL_INTO);
+    set_level(fix->u, SK_SAILING, fix->st_boat->sumskill);
+    u_set_ship(fix->u, fix->sh = test_create_ship(fix->u->region, fix->st_boat));
+    assert(fix->f && fix->u && fix->sh);
+    fix->f->locale = get_or_create_locale("de");
+
+}
+
+static void test_ship_no_overload(CuTest *tc) {
+    struct drift_fixture fix;
+
+    test_cleanup();
+
+    setup_drift(&fix);
+
+    fix.u->number = 2;
+    movement();
+    CuAssertPtrEquals(tc, fix.u->region, findregion(-1,0));
+    CuAssertIntEquals(tc, 0, fix.sh->damage);
+
+    test_cleanup();
+}
+
+static void test_ship_normal_overload(CuTest *tc) {
+    struct drift_fixture fix;
+
+    test_cleanup();
+
+    setup_drift(&fix);
+
+    fix.u->number = 21;
+    movement();
+    CuAssertPtrEquals(tc, fix.u->region, findregion(0, 0));
+    CuAssertIntEquals(tc, 2, ship_damage_percent(fix.sh));
+    CuAssertPtrNotNull(tc, test_find_messagetype(fix.f->msgs, "ship_drift"));
+
+    test_cleanup();
+}
+
+static void test_ship_big_overload(CuTest *tc) {
+    struct drift_fixture fix;
+
+    test_cleanup();
+
+    setup_drift(&fix);
+
+    fix.u->number = 22;
+    movement();
+    CuAssertPtrEquals(tc, fix.u->region, findregion(-1, 0));
+    CuAssertIntEquals(tc, 5, ship_damage_percent(fix.sh));
+    CuAssertPtrNotNull(tc, test_find_messagetype(fix.f->msgs, "massive_overload"));
+
+    test_cleanup();
+}
+
+static void test_ship_no_real_overload(CuTest *tc) {
+    struct drift_fixture fix;
+
+    test_cleanup();
+
+    setup_drift(&fix);
+
+    fix.u->number = 21;
+    damage_ship(fix.sh, .80);
+    movement();
+    CuAssertPtrEquals(tc, fix.u->region, findregion(0, 0));
+    CuAssertIntEquals(tc, 82, ship_damage_percent(fix.sh));
+    CuAssertPtrEquals(tc, 0, test_find_messagetype(fix.f->msgs, "massive_overload"));
+
+    test_cleanup();
+}
+
+static void test_ship_ridiculous_overload(CuTest *tc) {
+    struct drift_fixture fix;
+
+    test_cleanup();
+
+    setup_drift(&fix);
+
+    fix.u->number = 500;
+    movement();
+    CuAssertIntEquals(tc, 37, ship_damage_percent(fix.sh));
+    CuAssertPtrNotNull(tc, test_find_messagetype(fix.f->msgs, "massive_overload"));
+
+    test_cleanup();
+}
+
+static void test_ship_ridiculous_overload_no_captain(CuTest *tc) {
+    struct drift_fixture fix;
+
+    test_cleanup();
+
+    setup_drift(&fix);
+    set_level(fix.u, SK_SAILING, 0);
+
+    fix.u->number = 500;
+    movement();
+    CuAssertIntEquals(tc, 37, ship_damage_percent(fix.sh));
+    CuAssertPtrNotNull(tc, test_find_messagetype(fix.f->msgs, "massive_overload"));
+
+    test_cleanup();
+}
+
+static void test_ship_ridiculous_overload_bad(CuTest *tc) {
+    struct drift_fixture fix;
+
+    test_cleanup();
+    setup_drift(&fix);
+
+    fix.u->number = 500;
+    config_set("rules.ship.overload.damage.max", "1");
+    movement();
+    CuAssertTrue(tc, ship_damage_percent(fix.sh) > 99);
+    CuAssertPtrNotNull(tc, test_find_messagetype(fix.f->msgs, "massive_overload"));
+    CuAssertPtrEquals(tc, 0, fix.sh->region);
+    CuAssertPtrNotNull(tc, test_find_messagetype(fix.f->msgs, "shipsink"));
+    test_cleanup();
+}
+
+extern double damage_overload(double overload);
+
+static void test_ship_damage_overload(CuTest *tc) {
+    CuAssertDblEquals(tc, 0.0, damage_overload(1), ASSERT_DBL_DELTA);
+    CuAssertDblEquals(tc, 0.05, damage_overload(1.1), ASSERT_DBL_DELTA);
+    CuAssertDblEquals(tc, 0.05, damage_overload(1.5), ASSERT_DBL_DELTA);
+    CuAssertDblEquals(tc, 0.21, damage_overload(3.25), ASSERT_DBL_DELTA);
+    CuAssertDblEquals(tc, 0.37, damage_overload(5), ASSERT_DBL_DELTA);
+}
+
 typedef struct traveldir {
     int no;
     direction_t dir;
@@ -293,7 +444,6 @@ static void test_follow_ship_msg(CuTest * tc) {
     const ship_type *stype;
     message *msg;
     order *ord;
-    item_type *silver;
 
     traveldir *td = NULL;
     attrib *a;
@@ -314,8 +464,7 @@ static void test_follow_ship_msg(CuTest * tc) {
     assert(ord);
     unit_addorder(u, ord);
 
-    silver = get_resourcetype(R_SILVER)->itype;
+    set_money(u, 999999);
-    i_change(&u->items, silver, 999999);
 
     a = a_add(&(r->attribs), a_new(&at_shiptrail));
     td = (traveldir *)a->data.v;
@@ -355,6 +504,14 @@ CuSuite *get_move_suite(void)
     SUITE_ADD_TEST(suite, test_is_guarded);
     SUITE_ADD_TEST(suite, test_ship_trails);
     SUITE_ADD_TEST(suite, test_age_trails);
+    SUITE_ADD_TEST(suite, test_ship_no_overload);
+    SUITE_ADD_TEST(suite, test_ship_normal_overload);
+    SUITE_ADD_TEST(suite, test_ship_no_real_overload);
+    SUITE_ADD_TEST(suite, test_ship_big_overload);
+    SUITE_ADD_TEST(suite, test_ship_ridiculous_overload);
+    SUITE_ADD_TEST(suite, test_ship_ridiculous_overload_bad);
+    SUITE_ADD_TEST(suite, test_ship_ridiculous_overload_no_captain);
+    SUITE_ADD_TEST(suite, test_ship_damage_overload);
     SUITE_ADD_TEST(suite, test_follow_ship_msg);
     return suite;
 }

src/report.c

@@ -1804,8 +1804,7 @@ const unit * captain)
             WARN_STATIC_BUFFER();
     }
     if (sh->damage) {
-        int percent =
+        int percent = ship_damage_percent(sh);
-            (sh->damage * 100 + DAMAGE_SCALE - 1) / (sh->size * DAMAGE_SCALE);
         bytes =
             _snprintf(bufp, size, ", %d%% %s", percent, LOC(f->locale, "nr_damaged"));
         if (wrptr(&bufp, &size, bytes) != 0)

src/tests.c

@@ -133,6 +133,8 @@ ship_type * test_create_shiptype(const char * name)
     stype->sumskill = 1;
     stype->minskill = 1;
     stype->range = 2;
+    stype->cargo = 1000;
+    stype->damage = 1;
     if (!stype->construction) {
         stype->construction = calloc(1, sizeof(construction));
         stype->construction->maxsize = 5;
@@ -140,6 +142,12 @@ ship_type * test_create_shiptype(const char * name)
         stype->construction->reqsize = 1;
         stype->construction->skill = SK_SHIPBUILDING;
     }
+
+    stype->coasts =
+        (terrain_type **)malloc(sizeof(terrain_type *)*2);
+    stype->coasts[0] = get_or_create_terrain("plain");
+    stype->coasts[1] = NULL;
+
     if (default_locale) {
         locale_setstring(default_locale, name, name);
     }
@@ -225,6 +233,7 @@ void test_create_world(void)
     locale_setstring(loc, keyword(K_RESERVE), "RESERVIEREN");
     locale_setstring(loc, "money", "SILBER");
     init_resources();
+    get_resourcetype(R_SILVER)->itype->weight = 1;
 
     test_create_horse();
 
@@ -236,7 +245,7 @@ void test_create_world(void)
     test_create_itemtype("iron");
     test_create_itemtype("stone");
 
-    t_plain = test_create_terrain("plain", LAND_REGION | FOREST_REGION | WALK_INTO | CAVALRY_REGION | FLY_INTO);
+    t_plain = test_create_terrain("plain", LAND_REGION | FOREST_REGION | WALK_INTO | CAVALRY_REGION | SAIL_INTO | FLY_INTO);
     t_plain->size = 1000;
     t_plain->max_road = 100;
     t_ocean = test_create_terrain("ocean", SEA_REGION | SAIL_INTO | SWIM_INTO | FLY_INTO);

src/tests.h

@@ -8,6 +8,8 @@
 extern "C" {
 #endif
 
+    #define ASSERT_DBL_DELTA 0.001
+
     struct region;
     struct unit;
     struct faction;