Creating a moving platform

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Introduction

In this tutorial we will be creating a moving platform.

An example map will be available for download here.

Creating and setting basic model

You will need one from these models

• This one is bigger: models/props/light_rail_platform.mdl .
• This one is smaller models/props/light_rail_platform_02.mdl .
• After you make decided witch one is better for you, name it platform_model.
• Set its parent to platform_func, we will create it now.

Creating function

Create brush with dimensions of chosen platform. It’s not necessary, but it will surely work. Tie it to func_door entity by pressing [ctrl + t]. Set it’s variables as follow:

Property Name	Value
Change angles	this is up to you, I’m using: never (fixed orientation)
Change velocity	too, it’s your choise, but: ease in/ease out
First stop target	P1_S1_M
Initial speed	100
Initial speed	100
Name	platform_func

And, you may set sounds:

Property Name	Value
Start sound	Doors.Move12
Stop sound	Doors.FullClose12

Track

Our platform is using path_track to move, so we have to create some. You can see architecture we we will use. Create path_track entity with this setting:

Property Name	Value
Name	P1_S1_M
New train speed	30
Next stop target	P1_S1_O

Now create another one:

Property Name	Value
Name	P1_S1_O
New train speed	200
Next stop target	P1_S2_I

P1_S2_I:

Property Name	Value
Name	P1_S2_I
New train speed	30
Next stop target	P1_S2_M

P1_S2_M:

Property Name	Value
Name	P1_S2_M
New train speed	30
Next stop target	P1_S2_O

P1_S2_O:

Property Name	Value
Name	P1_S2_O
New train speed	200
Next stop target	P1_S1_I