implement simulation shell

src/lib/sim/Simulation.cpp

@@ -0,0 +1,38 @@
+#include "Simulation.h"
+
+Simulation::Simulation(const GameConfig& config, unsigned int seed)
+    : m_config(config)
+    , m_rng(seed)
+    , m_currentTick(0)
+    , m_nextId(1)
+{
+}
+
+void Simulation::tick()
+{
+    ++m_currentTick;
+}
+
+std::vector<FireEvent> Simulation::drainFireEvents()
+{
+    std::vector<FireEvent> result;
+    result.swap(m_fireEvents);
+    return result;
+}
+
+std::vector<BlueprintDropEvent> Simulation::drainBlueprintDropEvents()
+{
+    std::vector<BlueprintDropEvent> result;
+    result.swap(m_blueprintDropEvents);
+    return result;
+}
+
+Tick Simulation::currentTick() const
+{
+    return m_currentTick;
+}
+
+EntityId Simulation::allocateId()
+{
+    return m_nextId++;
+}