v1.4.4

source/game/scripting/StarEntityLuaBindings.cpp

@@ -0,0 +1,77 @@
+#include "StarEntityLuaBindings.hpp"
+#include "StarJsonExtra.hpp"
+#include "StarLuaGameConverters.hpp"
+#include "StarPlayer.hpp"
+#include "StarMonster.hpp"
+#include "StarNpc.hpp"
+#include "StarWorld.hpp"
+
+namespace Star {
+
+LuaCallbacks LuaBindings::makeEntityCallbacks(Entity const* entity) {
+  LuaCallbacks callbacks;
+
+  callbacks.registerCallbackWithSignature<EntityId>("id", bind(EntityCallbacks::id, entity));
+  callbacks.registerCallbackWithSignature<LuaTable, LuaEngine&>(
+      "damageTeam", bind(EntityCallbacks::damageTeam, entity, _1));
+  callbacks.registerCallbackWithSignature<bool, EntityId>(
+      "isValidTarget", bind(EntityCallbacks::isValidTarget, entity, _1));
+  callbacks.registerCallbackWithSignature<Vec2F, EntityId>(
+      "distanceToEntity", bind(EntityCallbacks::distanceToEntity, entity, _1));
+  callbacks.registerCallbackWithSignature<bool, EntityId>(
+      "entityInSight", bind(EntityCallbacks::entityInSight, entity, _1));
+
+  callbacks.registerCallback("position", [entity]() { return entity->position(); });
+  callbacks.registerCallback("entityType", [entity]() { return EntityTypeNames.getRight(entity->entityType()); });
+  callbacks.registerCallback("uniqueId", [entity]() { return entity->uniqueId(); });
+  callbacks.registerCallback("persistent", [entity]() { return entity->persistent(); });
+
+  return callbacks;
+}
+
+EntityId LuaBindings::EntityCallbacks::id(Entity const* entity) {
+  return entity->entityId();
+}
+
+LuaTable LuaBindings::EntityCallbacks::damageTeam(Entity const* entity, LuaEngine& engine) {
+  auto table = engine.createTable();
+  auto team = entity->getTeam();
+  table.set("type", TeamTypeNames.getRight(team.type));
+  table.set("team", team.team);
+  return table;
+}
+
+bool LuaBindings::EntityCallbacks::isValidTarget(Entity const* entity, EntityId entityId) {
+  auto target = entity->world()->entity(entityId);
+
+  if (!target || !entity->getTeam().canDamage(target->getTeam(), false))
+    return false;
+
+  if (auto monster = as<Monster>(target))
+    return monster->aggressive();
+
+  if (auto npc = as<Npc>(target)) {
+    if (auto attackerNpc = as<Npc>(entity))
+      return npc->aggressive() || attackerNpc->aggressive();
+    return true;
+  }
+
+  return is<Player>(target);
+}
+
+Vec2F LuaBindings::EntityCallbacks::distanceToEntity(Entity const* entity, EntityId entityId) {
+  Vec2F dist;
+  if (auto target = entity->world()->entity(entityId))
+    dist = entity->world()->geometry().diff(target->position(), entity->position());
+
+  return dist;
+}
+
+bool LuaBindings::EntityCallbacks::entityInSight(Entity const* entity, EntityId entityId) {
+  if (auto target = entity->world()->entity(entityId))
+    return !entity->world()->lineTileCollision(target->position(), entity->position());
+  else
+    return false;
+}
+
+}