(svn r12804) -Codechange: move the effect vehicle handling out of vehicle.cpp

src/effectvehicle_base.h

@@ -0,0 +1,37 @@
+/* $Id$ */
+
+/** @file effectvehicle_base.h Base class for all effect vehicles. */
+
+#ifndef EFFECTVEHICLE_BASE_H
+#define EFFECTVEHICLE_BASE_H
+
+#include "vehicle_base.h"
+
+/**
+ * This class 'wraps' Vehicle; you do not actually instantiate this class.
+ * You create a Vehicle using AllocateVehicle, so it is added to the pool
+ * and you reinitialize that to a Train using:
+ *   v = new (v) Train();
+ *
+ * As side-effect the vehicle type is set correctly.
+ *
+ * A special vehicle is one of the following:
+ *  - smoke
+ *  - electric sparks for trains
+ *  - explosions
+ *  - bulldozer (road works)
+ *  - bubbles (industry)
+ */
+struct EffectVehicle : public Vehicle {
+	/** Initializes the Vehicle to a special vehicle */
+	EffectVehicle() { this->type = VEH_EFFECT; }
+
+	/** We want to 'destruct' the right class. */
+	virtual ~EffectVehicle() {}
+
+	const char *GetTypeString() const { return "special vehicle"; }
+	void UpdateDeltaXY(Direction direction);
+	void Tick();
+};
+
+#endif /* EFFECTVEHICLE_BASE_H */