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-rw-r--r--src/engine_type.h26
1 files changed, 17 insertions, 9 deletions
diff --git a/src/engine_type.h b/src/engine_type.h
index ce755487f..8a82b4b52 100644
--- a/src/engine_type.h
+++ b/src/engine_type.h
@@ -19,24 +19,27 @@
#include "sound_type.h"
#include "strings_type.h"
-typedef uint16 EngineID;
+typedef uint16 EngineID; ///< Unique identification number of an engine.
struct Engine;
+/** Available types of rail vehicles. */
enum RailVehicleTypes {
RAILVEH_SINGLEHEAD, ///< indicates a "standalone" locomotive
RAILVEH_MULTIHEAD, ///< indicates a combination of two locomotives
RAILVEH_WAGON, ///< simple wagon, not motorized
};
+/** Type of rail engine. */
enum EngineClass {
- EC_STEAM,
- EC_DIESEL,
- EC_ELECTRIC,
- EC_MONORAIL,
- EC_MAGLEV,
+ EC_STEAM, ///< Steam rail engine.
+ EC_DIESEL, ///< Diesel rail engine.
+ EC_ELECTRIC, ///< Electric rail engine.
+ EC_MONORAIL, ///< Mono rail engine.
+ EC_MAGLEV, ///< Maglev engine.
};
+/** Information about a rail vehicle. */
struct RailVehicleInfo {
byte image_index;
RailVehicleTypes railveh_type;
@@ -59,6 +62,7 @@ struct RailVehicleInfo {
byte user_def_data; ///< Property 0x25: "User-defined bit mask" Used only for (very few) NewGRF vehicles
};
+/** Information about a ship vehicle. */
struct ShipVehicleInfo {
byte image_index;
byte cost_factor;
@@ -70,15 +74,18 @@ struct ShipVehicleInfo {
byte visual_effect; ///< Bitstuffed NewGRF visual effect data
};
-/* AircraftVehicleInfo subtypes, bitmask type.
+/**
+ * AircraftVehicleInfo subtypes, bitmask type.
* If bit 0 is 0 then it is a helicopter, otherwise it is a plane
- * in which case bit 1 tells us whether it's a big(fast) plane or not */
+ * in which case bit 1 tells us whether it's a big(fast) plane or not.
+ */
enum AircraftSubTypeBits {
AIR_HELI = 0,
AIR_CTOL = 1, ///< Conventional Take Off and Landing, i.e. planes
AIR_FAST = 2
};
+/** Information about a aircraft vehicle. */
struct AircraftVehicleInfo {
byte image_index;
byte cost_factor;
@@ -91,6 +98,7 @@ struct AircraftVehicleInfo {
uint16 passenger_capacity;
};
+/** Information about a road vehicle. */
struct RoadVehicleInfo {
byte image_index;
byte cost_factor;
@@ -150,6 +158,6 @@ static const uint NUM_VEHICLE_TYPES = 6;
static const uint MAX_LENGTH_ENGINE_NAME_CHARS = 32; ///< The maximum length of an engine name in characters including '\0'
static const uint MAX_LENGTH_ENGINE_NAME_PIXELS = 160; ///< The maximum length of an engine name in pixels
-static const EngineID INVALID_ENGINE = 0xFFFF;
+static const EngineID INVALID_ENGINE = 0xFFFF; ///< Constant denoting an invalid engine.
#endif /* ENGINE_TYPE_H */