asw_vehicle_jeep

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asw_vehicle_jeep is a point entity available in Alien Swarm Alien Swarm.

Entity description

This is basically the hl2 buggy, ported into alien swarm. It doesn't work in multiplayer because it spawns a dummy jeep vehicle as soon as it start thinking, when the client count is bigger than one.

Todo: Add code segments.

Keyvalues

BaseDriveableVehicle:

Starts locked (VehicleLocked) <boolean>
Players cannot enter vehicle until it is unlocked.

BaseVehicle:

Vehicle Script File (vehiclescript) <string>
The vehicle script files contained in scripts\vehicles\ define the behaviour and handling of a vehicle. It is important to match the right script to the right entity/model:
Scale of action input / framerate (actionScale) <float>
Todo: How fast the vehicle turns/accelerates?


Inputs

BaseDriveableVehicle:
HandBrakeOn
HandBrakeOff
Turns the handbrake on/off, preventing the vehicle from driving but not disabling motion from external forces.
BaseVehicle:
Action <float>
Set the speed of the action animation.
Todo: What does this mean?
TurnOn
Start engine and enable throttle.
TurnOff
Stop engine, disable throttle, engage brakes.
Lock
Unlock
Prevent/allow the player from entering or exiting the vehicle.

Outputs

BaseDriveableVehicle:

PlayerOn
PlayerOff
Player entered/exited the vehicle. (!activator is the player.)
PressedAttack
PressedAttack2
Player pressed the +attack/+attack2 key.
AttackAxis <boolean>
Attack2Axis <boolean>
State of the attack/attack2 buttons. Also called when the player exits the vehicle.


Enabling

The Buggy can work by adding a few missing files being the buggy model and the jeep_test script file

Assuming you own HL2 or Hl2DM you can get the files from

source models.cfg (inside "Models")
buggy.dx80.vtx
buggy.dx90.vtx
buggy.mdl
buggy.phy
buggy.sw.vtx
buggy.vvd

source materials.cfg (inside "Materials/Models/Buggy")
ammo_box.vmt
ammo_box.vtf
buggy001.vmt
buggy001.vtf

put them into the relevent folders in Alien swarm\swarm

also copy the following and put it into alien swarm\swarm\scripts\vehicles and call it jeep_test.txt 

// This is a test jeep type vehicle for the wasteland

"vehicle"
{
	"wheelsperaxle"	"2"
	"body"
	{
		"countertorquefactor"	"1"
		"massCenterOverride"	"0 0 0"
		"massoverride"		"800"		// kg
		"addgravity"		"0.33"
	}
	"engine"
	{
		"horsepower"		"350"
		"maxrpm"		"3000"
		"maxspeed"		"35"		// mph
		"maxReverseSpeed"	"20"		// mph
		"autotransmission"	"1"
		"axleratio"		"4.56"
		"gear"			"1.86"		// 1st gear
		"gear"			"1.59"		// 2nd gear
		"gear"			"1.17"		// 3rd gear
		"gear"			"1.0"		// 4th gear
		"gear"			"0.84"		// 5th gear
		"shiftuprpm"		"1500"
		"shiftdownrpm"		"300"
	
		"boost"
		{
//			"force"		"1.5"	// 1.5 car body mass * gravity * inches / second ^ 2
			"duration"	"1.0"	// 1 second of boost
			"delay"		"15"	// 15 seconds before you can use it again
			"torqueboost"	"1"	// enable "sprint" mode of vehicle, not	force type booster			
			"maxspeed"	"50"	// maximum turbo speed
			"force"		"2.5"	// use for value as a boost factor
		}
	}
	"steering"
	{
		"degrees"		"26"
		"fastdampen"		"0.35"
		"slowcarspeed"		"0"
		"fastcarspeed"		"40"
		"slowsteeringrate"	"4"		
		"faststeeringrate"	"2"
		"steeringRestFactor"	"1.5"
		"turnbrake"		"0.25"

		"skidallowed"		"1"
		"dustcloud"		"1"
	}

	// front axle
	"axle"
	{
		"wheel"
		{
			"radius"	"18"
			"mass"		"100"
			"inertia"	"0.5"		// steady the car (fixes the oscillation of the axles about z)
			"damping"	"0"
			"rotdamping"	"0.0"
			"material"	"jeeptire"
			"skidmaterial"	"slidingrubbertire"
			"brakematerial" "brakingrubbertire"
		}
		"suspension"
		{
			"springConstant"		"80"
			"springDamping"			"4"
			"stabilizerConstant"		"110"
			"springDampingCompression"	"4"
			"maxBodyForce"			"250"
		}

		"torquefactor"	"0.8"
		"brakefactor"	"0.5"
	}

	// rear axle
	"axle"
	{
		"wheel"
		{
			"radius"	"20"
			"mass"		"100"
			"inertia"	"0.5"		// steady the car (fixes the oscillation of the axles about z)
			"damping"	"0"
			"rotdamping"	"0.0"
			"material"	"jeeptire"
			"skidmaterial"	"slidingrubbertire"
			"brakematerial" "brakingrubbertire"
		}
		"suspension"
		{
			"springConstant"		"80"
			"springDamping"			"4"
			"stabilizerConstant"		"110"
			"springDampingCompression"	"4"
			"maxBodyForce"			"250"
		}
		"torquefactor"	"0.2"
		"brakefactor"	"0.5"
	}
}

"vehicle_sounds"
{
	// List gears in order from lowest speed to highest speed

	"gear"
	{
		"max_speed"		"0.3"
		"speed_approach_factor" "1.0"
	}

	"gear"
	{
		"max_speed"		"0.5"
		"speed_approach_factor" "0.07"
	}
	"gear"
	{
		"max_speed"		"0.75"
		"speed_approach_factor" "0.07"
	}
	"gear"
	{
		"max_speed"		"0.90"
		"speed_approach_factor" "0.035"
	}
	"gear"
	{
		"max_speed"		"0.95"
		"speed_approach_factor" "0.015"
	}
	"gear"
	{
		"max_speed"		"2.0"
		"speed_approach_factor" "0.03"
	}
	"state"
	{
		"name"		"SS_START_WATER"
		"sound"		"ATV_start_in_water"
	}

	"state"
	{
		"name"		"SS_START_IDLE"
		"sound"		"ATV_engine_start"
	}
	"state"
	{
		"name"		"SS_SHUTDOWN_WATER"
		"sound"		"ATV_stall_in_water"
	}
	"state"
	{
		"name"		"SS_IDLE"
		"sound"		"ATV_engine_idle"
	}
	"state"
	{
		"name"		"SS_REVERSE"
		"sound"		"ATV_reverse"
		"min_time"	"0.5"
	}
	"state"
	{
		"name"		"SS_GEAR_0"
		"sound"		"ATV_rev"
		"min_time"	"0.75"
	}
	"state"
	{
		"name"		"SS_GEAR_0_RESUME"
		"sound"		"ATV_engine_idle"
		"min_time"	"0.75"
	}
	"state"
	{
		"name"		"SS_GEAR_1"
		"sound"		"ATV_firstgear"
		"min_time"	"0.5"
	}
	"state"
	{
		"name"		"SS_GEAR_1_RESUME"
		"sound"		"ATV_firstgear_noshift"
		"min_time"	"0.5"
	}
	"state"
	{
		"name"		"SS_GEAR_2"
		"sound"		"ATV_secondgear"
		"min_time"	"0.5"
	}
	"state"
	{
		"name"		"SS_GEAR_2_RESUME"
		"sound"		"ATV_secondgear_noshift"
		"min_time"	"0.5"
	}
	"state"
	{
		"name"		"SS_GEAR_3"
		"sound"		"ATV_thirdgear"
		"min_time"	"0.5"
	}
	"state"
	{
		"name"		"SS_GEAR_3_RESUME"
		"sound"		"ATV_thirdgear_noshift"
		"min_time"	"0.5"
	}
	"state"
	{
		"name"		"SS_GEAR_4"
		"sound"		"ATV_fourthgear"
		"min_time"	"0.5"
	}
	"state"
	{
		"name"		"SS_GEAR_4_RESUME"
		"sound"		"ATV_fourthgear_noshift"
		"min_time"	"0.5"
	}
	"state"
	{
		"name"		"SS_SLOWDOWN_HIGHSPEED"
		"sound"		"ATV_throttleoff_fastspeed"
	}
	"state"
	{
		"name"		"SS_SLOWDOWN"
		"sound"		"ATV_throttleoff_slowspeed"
	}
	"state"
	{
		"name"		"SS_TURBO"
		"sound"		"ATV_turbo_on"
		"min_time"	"2.5"
	}
	"state"
	{
		"name"		"SS_SHUTDOWN"
		"sound"		"ATV_engine_stop"
	}
	"crashsound"
	{
		"min_speed"			"350"
		"min_speed_change"	"250"
		"sound"				"ATV_impact_medium"
		"gear_limit"		"1"
	}
	"crashsound"
	{
		"min_speed"			"450"
		"min_speed_change"	"350"
		"sound"				"ATV_impact_heavy"
	}

	
	"skid_lowfriction"		"ATV_skid_lowfriction"
	"skid_normalfriction"	"ATV_skid_normalfriction"
	"skid_highfriction"		"ATV_skid_highfriction"
}

After all thats done, in hammer on any map add asw_Vehicle_jeep set the world model to the buggy and make sure the vehicle script file is "scripts/vehicles/jeep_test.txt"

save and run the map

and finally make sure the following console commands are set
asw_vehicle_cam_height 412
asw_vehicle_cam_dist 60
asw_vehicle_cam_pitch 60

you should now have a working yet pretty buggy..buggy!

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