taxi demo: Taxi integrated, phase 1 complete

assets/blender/scripts/gen_vehicle.py

@@ -382,7 +382,11 @@ if trunk:
 vehicle = {
     "cameraDistance": 6.0,
     "cameraHeight": 1.6,
-    "engineBrake": 0.5,
+    # Cars coast when the accelerator is released (braking is the
+    # driver's job: S while rolling forward, Space = handbrake).
+    # Slow yard vehicles like the forklift use ~0.5 instead so they
+    # do not roll forever.
+    "engineBrake": 0.0,
     "maxPitchRollAngleDeg": 60.0,
     "maxTorque": 300.0,
     "rearSteer": False,

assets/blender/vehicles/CMakeLists.txt

@@ -27,7 +27,7 @@ endforeach()
 # Convention-built drivable vehicles: same mesh/material export plus a
 # generated scene-entity JSON fragment (<name>.vehicle.json, see
 # assets/blender/scripts/gen_vehicle.py and vehicles/CAR_MODELING.md).
-set(VEHICLES_GEN_SRC sedan-v2.blend)
+set(VEHICLES_GEN_SRC sedan-v2.blend sedan-v2-taxi.blend)
 
 foreach(VEHICLE_FILE ${VEHICLES_GEN_SRC})
 	get_filename_component(FILE_NAME ${VEHICLE_FILE} NAME_WE)
@@ -65,5 +65,7 @@ add_custom_target(update_vehicles
 		${CMAKE_BINARY_DIR}/resources/vehicles/sedan-v2.vehicle.json sedan1
 	COMMAND python3 merge_vehicle.py demo_scene_exterior.json
 		${CMAKE_BINARY_DIR}/resources/vehicles/sedan-v2.vehicle.json sedan_plain
+	COMMAND python3 merge_vehicle.py demo_scene_exterior.json
+		${CMAKE_BINARY_DIR}/resources/vehicles/sedan-v2-taxi.vehicle.json sedan_taxi
 	WORKING_DIRECTORY ${DEMO_TAXI_DIR}
 	DEPENDS import_vehicles)