Fixes and tweaks for CreatureParty, added C Interface.

CInterface/Battling/CreatureParty.cpp

@@ -0,0 +1,24 @@
+#include "../../src/Battling/Models/CreatureParty.hpp"
+#define export extern "C"
+using namespace CreatureLib::Battling;
+
+export CreatureParty* CreatureLib_CreatureParty_ConstructWithSize(size_t size) { return new CreatureParty(size); }
+export CreatureParty* CreatureLib_CreatureParty_ConstructFromArray(Creature* creatures[], size_t size) {
+    return new CreatureParty(std::vector<Creature*>(creatures, creatures + size));
+}
+
+export void CreatureLib_CreatureParty_Destruct(const CreatureParty* p) { delete p; }
+
+export Creature* CreatureLib_CreatureParty_GetAtIndex(const CreatureParty* p, size_t index) {
+    return p->GetAtIndex(index);
+}
+
+export void CreatureLib_CreatureParty_Switch(CreatureParty* p, size_t a, size_t b) { p->Switch(a, b); }
+
+export bool CreatureLib_CreatureParty_HasAvailableCreatures(const CreatureParty* p) {
+    return p->HasAvailableCreatures();
+}
+
+export size_t CreatureLib_CreatureParty_GetLength(const CreatureParty* p) { return p->GetLength(); }
+
+export Creature** CreatureLib_CreatureParty_GetParty(CreatureParty* p) { return p->GetParty().data(); }