1 files changed, 156 insertions, 0 deletions
diff --git a/source/game/StarLiquidsDatabase.cpp b/source/game/StarLiquidsDatabase.cpp
new file mode 100644
index 0000000..e0bcd0c
--- /dev/null
+++ b/source/game/StarLiquidsDatabase.cpp
@@ -0,0 +1,156 @@
+#include "StarLiquidsDatabase.hpp"
+#include "StarLexicalCast.hpp"
+#include "StarAssets.hpp"
+#include "StarJsonExtra.hpp"
+#include "StarMaterialDatabase.hpp"
+#include "StarRoot.hpp"
+
+namespace Star {
+
+LiquidSettings::LiquidSettings() : id(EmptyLiquidId) {}
+
+LiquidsDatabase::LiquidsDatabase() {
+  auto assets = Root::singleton().assets();
+  auto materialDatabase = Root::singleton().materialDatabase();
+
+  auto config = assets->json("/liquids.config");
+
+  auto liquidEngineParameters = config.get("liquidEngineParameters");
+  m_liquidEngineParameters.lateralMoveFactor = liquidEngineParameters.getFloat("lateralMoveFactor");
+  m_liquidEngineParameters.spreadOverfillUpFactor = liquidEngineParameters.getFloat("spreadOverfillUpFactor");
+  m_liquidEngineParameters.spreadOverfillLateralFactor = liquidEngineParameters.getFloat("spreadOverfillLateralFactor");
+  m_liquidEngineParameters.spreadOverfillDownFactor = liquidEngineParameters.getFloat("spreadOverfillDownFactor");
+  m_liquidEngineParameters.pressureEqualizeFactor = liquidEngineParameters.getFloat("pressureEqualizeFactor");
+  m_liquidEngineParameters.pressureMoveFactor = liquidEngineParameters.getFloat("pressureMoveFactor");
+  m_liquidEngineParameters.maximumPressureLevelImbalance = liquidEngineParameters.getFloat("maximumPressureLevelImbalance");
+  m_liquidEngineParameters.minimumLivenPressureChange = liquidEngineParameters.getFloat("minimumLivenPressureChange");
+  m_liquidEngineParameters.minimumLivenLevelChange = liquidEngineParameters.getFloat("minimumLivenLevelChange");
+  m_liquidEngineParameters.minimumLiquidLevel = liquidEngineParameters.getFloat("minimumLiquidLevel");
+  m_liquidEngineParameters.interactTransformationLevel = liquidEngineParameters.getFloat("interactTransformationLevel");
+
+  m_backgroundDrain = config.getFloat("backgroundDrain");
+
+  m_liquidNames["empty"] = EmptyLiquidId;
+
+  auto liquids = assets->scanExtension("liquid");
+  assets->queueJsons(liquids);
+
+  for (auto file : liquids) {
+    try {
+      auto liquidConfig = assets->json(file);
+
+      unsigned id = liquidConfig.getUInt("liquidId");
+      if (id != (LiquidId)id)
+        throw LiquidException(strf("Liquid id %s does not fall in the valid range, wrapped to %s\n", id, (LiquidId)id));
+
+      auto entry = make_shared<LiquidSettings>();
+      entry->id = (LiquidId)id;
+      entry->name = liquidConfig.getString("name");
+      entry->path = file;
+      entry->config = liquidConfig;
+
+      JsonObject descriptions;
+      for (auto pair : liquidConfig.iterateObject())
+        if (pair.first.endsWith("Description"))
+          descriptions[pair.first] = pair.second;
+      descriptions["description"] = liquidConfig.getString("description", "");
+      entry->descriptions = descriptions;
+
+      entry->tickDelta = liquidConfig.getUInt("tickDelta");
+      entry->liquidColor = jsonToVec4B(liquidConfig.get("color"));
+
+      if (liquidConfig.contains("radiantLight")) {
+        auto lightLevel = jsonToVec3B(liquidConfig.get("radiantLight"));
+        entry->radiantLightLevel = Color::rgb(lightLevel).toRgbF();
+      }
+
+      entry->itemDrop = ItemDescriptor(liquidConfig.get("itemDrop", {}));
+
+      entry->statusEffects = liquidConfig.getArray("statusEffects", {});
+
+      for (auto const& interaction : liquidConfig.getArray("interactions", {})) {
+        LiquidId liquid = interaction.getUInt("liquid");
+        LiquidInteractionResult interactionResult;
+        if (auto materialResult = interaction.optString("materialResult"))
+          interactionResult = makeLeft<MaterialId>(materialDatabase->materialId(*materialResult));
+        else if (auto liquidResult = interaction.optUInt("liquidResult"))
+          interactionResult = makeRight<LiquidId>(*liquidResult);
+        else
+          throw LiquidException::format(
+              "Neither resultMaterial or resultLiquid specified in liquid interaction of liquid %d", entry->id);
+
+        entry->interactions[liquid] = interactionResult;
+      }
+
+      m_settings.set(entry->id, entry);
+      m_liquidNames.add(entry->name, entry->id);
+    } catch (StarException const& e) {
+      throw LiquidException(strf("Error loading liquid file %s", file), e);
+    }
+  }
+}
+
+LiquidCellEngineParameters LiquidsDatabase::liquidEngineParameters() const {
+  return m_liquidEngineParameters;
+}
+
+StringList LiquidsDatabase::liquidNames() const {
+  return m_liquidNames.keys();
+}
+
+List<LiquidSettingsConstPtr> LiquidsDatabase::allLiquidSettings() const {
+  return filtered<List<LiquidSettingsConstPtr>>(m_settings, mem_fn(&LiquidSettingsConstPtr::operator bool));
+}
+
+LiquidId LiquidsDatabase::liquidId(String const& str) const {
+  return m_liquidNames.get(str);
+}
+
+String LiquidsDatabase::liquidName(LiquidId liquidId) const {
+  if (liquidId == EmptyLiquidId)
+    return "empty";
+  else if (auto settings = liquidSettings(liquidId))
+    return settings->name;
+  throw LiquidException::format("invalid liquid id %d", liquidId);
+}
+
+String LiquidsDatabase::liquidDescription(LiquidId liquidId, String const& species) const {
+  if (liquidId == EmptyLiquidId)
+    return String();
+  else if (auto settings = liquidSettings(liquidId))
+    return settings->descriptions.getString(
+        strf("%sDescription", species), settings->descriptions.getString("description"));
+  throw LiquidException::format("invalid liquid id %d", liquidId);
+}
+
+String LiquidsDatabase::liquidDescription(LiquidId liquidId) const {
+  if (liquidId == EmptyLiquidId)
+    return String();
+  else if (auto settings = liquidSettings(liquidId))
+    return settings->descriptions.getString("description");
+  throw LiquidException::format("invalid liquid id %d", liquidId);
+}
+
+Maybe<String> LiquidsDatabase::liquidPath(LiquidId liquidId) const {
+  if (liquidId == EmptyLiquidId)
+    return {};
+  else if (auto settings = liquidSettings(liquidId))
+    return settings->path;
+  return {};
+}
+
+Maybe<Json> LiquidsDatabase::liquidConfig(LiquidId liquidId) const {
+  if (liquidId == EmptyLiquidId)
+    return {};
+  else if (auto settings = liquidSettings(liquidId))
+    return settings->config;
+  return {};
+}
+
+Maybe<LiquidInteractionResult> LiquidsDatabase::interact(LiquidId target, LiquidId other) const {
+  if (auto settings = liquidSettings(target))
+    return settings->interactions.value(other);
+  return {};
+}
+
+}