v1.4.4

source/game/terrain/StarMinMaxSelector.cpp

@@ -0,0 +1,32 @@
+#include "StarMinMaxSelector.hpp"
+#include "StarMathCommon.hpp"
+
+namespace Star {
+
+char const* const MinMaxSelector::Name = "minmax";
+
+MinMaxSelector::MinMaxSelector(
+    Json const& config, TerrainSelectorParameters const& parameters, TerrainDatabase const* database)
+  : TerrainSelector(Name, config, parameters) {
+  for (auto const& sourceConfig : config.getArray("sources")) {
+    String sourceType = sourceConfig.getString("type");
+    uint64_t seedBias = sourceConfig.getUInt("seedBias", 0);
+    TerrainSelectorParameters sourceParameters = parameters;
+    sourceParameters.seed += seedBias;
+    m_sources.append(database->createSelectorType(sourceType, sourceConfig, sourceParameters));
+  }
+}
+
+float MinMaxSelector::get(int x, int y) const {
+  float value = 0.0f;
+  for (auto const& source : m_sources) {
+    float srcVal = source->get(x, y);
+    if (value > 0 || srcVal > 0)
+      value = max(value, srcVal);
+    else
+      value = min(value, srcVal);
+  }
+  return value;
+}
+
+}