What are entities?
Entities are broken down into a few sections. Things you create with
brushes and curves are brush based entities. Things like lights, doors,
triggers etc are other forms of entities, normally with an entity,
you can change the properties and features.
If you right click in radiant, everything from "AI" down
can be classed as an entity.
If your running on desktop of 800x600 you wont see "trigger"
(although you cant see it, you can actually select it) and you wont
get "weapon" and "worldspawn", so if you ever
want to use the entity set of "weapon" you will have to
change your desktop resolutions I guess, its not used much anyway,
if ever. I myself use 800x600 as a resolution and havent had to change
it once. Worldspawn can be selected by choosing any normal brush and
pressing "N", rather than using that menu.
Theres a variety of ways you can use entities, for things such as
lights, props etc you can just place them in your map, by right clicking
in a window, then clicking what you want. Then with it selected, you
can select its properties by pressing "n".
The other way is if you need a brush you have created to be an entity,
such as if you have made a door brush and now need to make it into
an actual door. What you need to do here is select your brush, then
"right click" and chose the entity "func_door".
Then your brush will of turned into that entity. You can see this
by selecting the brush and then pressing "N" to bring up
its details, if you have made a brush into a func_door it will be
selected and you can enter various keys into the boxes.
If you look at the image below you can see ive made a brush into a
func_explosive and im now viewing its properties:
You can see at the top "func_explosive" is selected, this
means our brush is a func_explosive, which we already know. Now below
that is a descriptions and information's screen. It first gives the
command you can type in. As we can see it says "EXPO" then
says "only rockets can damage it, grenades etc",
in this case we can see below that screen some flags you can press,
one is called "EXPO", if we click that, you can see it will
then say "spawnflags 32" in the window above.
We know from the description that what we have done is set "EXPO"
on, so that our brush can only be damaged by rockets and explosives.
If you turn on other flags such as dynomite the number in the "spawnflags"
changes, you dont need to worry about what is says, all you need to
know is that if the buttons pressed in, that means you have selected
Above we can see ive chosen "EXPO" and then "spawnflags
32" has appeared to show that its ON
Now we can see ive also selected "dynomite" and the "Spawnflags"
number has changed to 96. Like I said before you dont need to worry
what number it says, if you have pressed the flag button then its
set to ON.
This isnt the only way to enter things into the properties of the
entity. You also will often need to look at the descriptions window
and then enter information into the "key" and "value"
boxes. In this case I can see in the description box it says I can
have "type" "type of debris "glass" "wood"
"rock" etc". I know that I need to write in "type"
in the key box, and then write in what material I want it to be, in
this case I want it to be rock, so I have written in "rock"
see the image below:
Now once I have wrote that in I press enter and then the window
to show ive chosen "rock" as the type:
You can see above it now has "type" "rock" listed
in its properties. You can add all sorts of things, just read the
descriptions and it tells you what to put in the key, and what to
put in the value. Sometimes the descriptions might not be too good
and you will have to think logically what values you can enter, like
it says you can type in "health" and the default is 100,
which is obviously full, so if you type in "health" in the
key and "50" in the value, it means 50 health will be set.
You will also notice below where you can enter keys and values some
This means delete the selected key
Means choose a sound, although this doesnt work for most of the entities,
you dont seem to use it much. It doesnt mean for doors you can press
"sound" and then chose a sound and it will come on, that
wont work. In fact im not entirely sure what you can use it for, the
same goes for "model" too.
"Up" and "Dn"
Directions, can be used for sliding doors and things to move them
up or down. This is in relation to the top view.
135,90,45 etc (The numbers on the small square boxes)
The numbered section on the left is a little harder to explain, say
you have made a sliding door, you need to say which way to slide,
so if you look in your top view at your door and think what way it
wants to go, then look at the numbered section choose a number in
the direction it is. Better explained in a doodle like picture:
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Tutorial by eyeronik