Igniting entities: Difference between revisions

Revision as of 14:58, 21 March 2008

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Igniting Entities

This tutorial uses an env_entity_igniter to light compatible entities on fire.

The Fiery Tool

First make a stick, (long, thin brush) tie it to a func_physbox (ctrl-t). I use a physbox so that our fire tool is like a "torch" you move with the Gravity Gun and +USE key

Class: func_physbox
Keyvalues		Comments
Name	physbox_pole	The name that other entities refer to this entity by.
Prop Data	None	If set, it will override this entity's health and damage taken from various weapons.

The Prop Data was no set because it applies health, and we don't want our stick to break. You may also want to set the spawnflag "Only Break on Trigger", so that it will not break unless told to. You may also want to set the "preferred carry angles" so the the stick always points the same way while being carried, something like (-5, 0, 90) is a good place to start.

It should look like this

After you've created your physbox, you'll want to move the origin to end of the stick, because that's where the fire will sit once it is caught alight. The origin is a little circle in the 2D views, and a blue orb in the 3D views (only visible when the physbox is elected).

Tip:If you can't see it, go to View->Show Helpers

Next, make the env_entity_igniter, this can be placed anywhere on the map.

Class: env_entity_igniter
Keyvalues		Comments
Name	igniter	The name that other entities refer to this entity by.
Entity to ignite	!activator	Name of the entity to catch on fire.

The next entity we will need a is a trigger_multiple. put it on end of the pole, like an extension (or a fire).

Class: trigger_multiple
Keyvalues		Comments
Name	trigger_igniter	The name that other entities refer to this entity by.
Parent	physbox_pole	The name of this entity's parent in the movement hierarchy. Entities with parents move with their parent.
Start Disabled	Yes

It should look like this

Make sure you set the trigger's spawnflags correctly I suggest checking the "everything (except physics debris)" and the "physics debris" box. ; )

The outputs of the trigger should be as followed:

**"trigger_igniter" Outputs**
	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnStartTouch	igniter	Ignite	<none>	0.00	No

Setting the env_entity_igniter's target to "!activator" will make it ignite what ever triggers our trigger_multiple.

However, our trigger starts disabled, and out stick is not fire yet, hmm...

The Source Fire

Tip:This step is for added realism, complexity, and because I can. You can skip it, by adding a fire or a sprite to end of your stick, and starting the trigger enabled.

Make an env_fire entity somewhere on your map. Make sure set its spawnflags to your liking; I recommend at least "Start On" and "Infinite Duration". Then make another trigger_multiple around the fire. Make this trigger exactly like the one on your stick:

**Trigger Outputs**
	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnStartTouch	igniter	Ignite	<none>	0.00	No

This will cause our stick (and more) to ignite, but not enable its own ignition trigger, so continue reading...

The spread

It should look like this

The simplest thing to do is to have our pole enable the trigger when damaged, like this:

**"physbox_pole" Outputs**
	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnHealthChanged	trigger_igniter	Enable	<none>	0.00	No
	OnHealthChanged	trigger_igniter	Disable	<none>	10.00	No

This way, when the pole is damaged, it enables the trigger (and lets you burn more things) for 10 seconds, which is the default flame lifetime set by the env_entity_igniter. Unfortunately, now the pole will enable the trigger when it takes damage in any way! To fix this we will use a filter_damage_type

Class: filter_damage_type
Keyvalues		Comments
Name	filter_burn	The name that other entities refer to this entity by.
Filter mode	Allow entities that match criteria	If set to Allow, only entities who match the criteria will pass the filter.
Damage type	BURN	The damage type to filter by.

Make sure you set "physbox_pole"'s keyvalue "damage filter" to "filter_burn".

Victims

physbox
npc
func_breakable
prop

A note about NPC's

reaction
relationships
path nodes

Conclusion

Don't forget to make a player start, a gravgun, and other things like a suit (or maybe a healthcharger).

Your finished map should look like this:

Here are some shots of the effects in the game:

Wrap up

Feel free to play around see what works, hopefully this article have stimulated your imagination.

The example used in this tutorial.

Credits

The tutorial was created by Bit Mage 14:37, 21 Mar 2008 (EST)

@@ Line 4: / Line 4: @@
 == Igniting Entities ==
 This tutorial uses an env_entity_igniter to light compatible entities on fire.
+=== The Fiery Tool ===
 First make a stick, (long, thin brush) tie it to a [[func_physbox]] (ctrl-t).
+I use a physbox so that our fire tool is like a "torch" you move with the [[Weapon_physcannon|Gravity Gun]] and +USE key
 {{entity-kvalue-start|[[func_physbox]]}}
 {{entity-kvalue|Name|physbox_pole| The name that other entities refer to this entity by.}}
@@ Line 11: / Line 13: @@
 The Prop Data was no set because it applies health, and we don't want our stick to break.  You may also want to set the spawnflag "Only Break on Trigger", so that it will not break unless told to.
 You may also want to set the "preferred carry angles" so the the stick always points the same way while being carried, something like (-5, 0, 90) is a good place to start.
-[[Image:wiseOnewayGlass02.jpg|thumb|150px|It should look like this]]
+[[Image:BitMage_pole_origin.PNG|thumb|180px|It should look like this]]After you've created your physbox, you'll want to move the origin to end of the stick, because that's where the fire will sit once it is caught alight.  The origin is a little circle in the 2D views, and a blue orb in the 3D views (only visible when the physbox is elected).
-After you've created your physbox, you'll want to move the origin to end of the stick, because that's where the fire will sit once it is caught alight.  The origin is a little circle in the 2D views, and a blue orb in the 3D views (only visible when the physbox is elected).
+{{Tip|If you can't see it, go to View->Show Helpers}}
-{{Tip|If can't see it, go to View->Show Helpers}}
 Next, make the [[env_entity_igniter]], this can be placed anywhere on the map.
@@ Line 20: / Line 29: @@
 {{entity-kvalue|Entity to ignite|[[Targetname#Keywords|!activator]]| Name of the entity to catch on fire.}}
 {{entity-kvalue-end}}
+<br>
+The next entity we will need a is a [[trigger_multiple]].  put it on end of the pole, like an extension (or a fire).
+{{entity-kvalue-start|[[trigger_multiple]]}}
+{{entity-kvalue|Name|trigger_igniter| The name that other entities refer to this entity by.}}
+{{entity-kvalue|Parent|physbox_pole| The name of this entity's parent in the movement hierarchy. Entities with parents move with their parent.}}
+{{entity-kvalue|Start Disabled|Yes|}}
+{{entity-kvalue-end}}[[Image:BitMage_trigger_igniter.PNG|thumb|180px|It should look like this]]
-The first window is a typical One-way Glass.
+Make sure you set the trigger's spawnflags correctly I suggest checking the "everything (except physics debris)" and the "physics debris" box. ; )
-* On one face it’s textured with glass/glasswindow070a
-* On the opposite face it’s textured with the same brick texture I used on the walls: brick/brickwall003a
+The outputs of the trigger should be as followed:
-To browse for these textures:
+{|
-* Click the '''Toggle Texture''' tool, or press '''Shift+A'''.
+|+'''"trigger_igniter" Outputs'''
-* Now click the '''Browse''' button.
+!  || My Output || Target Entity || Target Input || Parameter || Delay || Only Once
-* In the lower '''Filter''' area enter filter words like “''glass''”, “''wall''”, etc.
+|-
-* Double-click on the texture you want to use.
+| {{IO11}} || OnStartTouch || igniter || Ignite || <none> || 0.00 || No
-* Now with the '''Face Edit''' tool still open Right-click on any brush face to texture it. ('''Left-Click selects''')
+|}
-Starting from the left:
-* Typical One-way Glass.
-* Breakable Glass made with [[func_breakable_surf]], ''more on that soon''.
-* Normal brush with '''nodraw''' on one face and a Glass texture on the opposite face.
-* Layered textures created with [[func_illusionary]] entities.
-[[Image:wiseOnewayGlass02.jpg|thumb|150px|right|Blends in with the wall]]
+Setting the [[env_entity_igniter]]'s target to "[[Targetname#Keywords|!activator]]" will make it ignite what ever triggers our [[trigger_multiple]].
-=== One-way ===
+However, our trigger starts disabled, and out stick is not fire yet, hmm...
-The One-way Glass is created with a normal brush that has any ''opaque'' textured face opposite a Glass textured face. In this example I’ve used a brick texture and opposite that a glass texture.
-=== Breakable ===
+=== The Source Fire ===
-The Breakable glass is created by turning a normal brush into [[func_breakable_surf]].
+{{Tip|This step is for added realism, complexity, and because I can.  You can skip it, by adding a [[env_fire|fire]] or a [[env_sprite|sprite]] to end of your stick, and starting the trigger enabled.}}
-Do that by selecting the brush and pressing '''Ctrl+T''', choose [[func_breakable_surf]], and finally click '''Apply'''.
+Make an [[env_fire]] entity somewhere on your map.  Make sure set its spawnflags to your liking; I recommend at least "Start On" and "Infinite Duration".
+Then make another [[trigger_multiple]] around the fire.
+Make this trigger '''exactly''' like the one on your stick:
+{|
+|+'''Trigger Outputs'''
+!  || My Output || Target Entity || Target Input || Parameter || Delay || Only Once
+|-
+| {{IO11}} || OnStartTouch || igniter || Ignite || <none> || 0.00 || No
+|}
+This will cause our stick (and more) to ignite, but not enable its own ignition trigger, so continue reading...
+==== The spread ====
+[[Image:BitMage_fire_big.PNG|thumb|180px|It should look like this]]
+The simplest thing to do is to have our pole enable the trigger when damaged, like this:
+{|
+|+'''"physbox_pole" Outputs'''
+!  || My Output || Target Entity || Target Input || Parameter || Delay || Only Once
+|-
+| {{IO11}} || OnHealthChanged || trigger_igniter || Enable || <none> || 0.00 || No
+|-
+| {{IO11}} || OnHealthChanged || trigger_igniter || Disable || <none> || 10.00 || No
+|}
+This way, when the pole is damaged, it enables the trigger (and lets you burn more things) for 10 seconds, which is the default flame lifetime set by the [[env_entity_igniter]].
+Unfortunately, now the pole will enable the trigger when it takes damage in any way!
+To fix this we will use a [[filter_damage_type]]
+{{entity-kvalue-start|[[filter_damage_type]]}}
+{{entity-kvalue|Name|filter_burn| The name that other entities refer to this entity by.}}
+{{entity-kvalue|Filter mode|Allow entities that match criteria| If set to Allow, only entities who match the criteria will pass the filter.}}
+{{entity-kvalue|Damage type|BURN| The damage type to filter by.}}
+{{entity-kvalue-end}}
+'''Make sure you set "physbox_pole"'s keyvalue "damage filter" to "filter_burn".'''
+=== Victims ===
+*physbox
+*npc
+*func_breakable
+*prop
-The properties for our Breakable window are:
+==== A note about NPC's ====
-* Prop Data: Glass.Window
+*reaction
-* Health: 80
+*relationships
-* Material Type: Glass
+*path nodes
-* Fragility: 50
-* Surface Type: Glass
-* This Breakable glass is 1.0 units thick.
-:Don’t make them thinner than 0.5 units thick and don’t make the too thick.
-:Breakable glass gets textured on only one face, all other faces will be textured with '''nodraw''', the easiest way to do that is create them entirely with '''nodraw''' and then use the '''Face Edit''' tool to apply the breakable glass texture.
-The texture to use on that face is: glass/glasswindowbreak070a (Don’t use glass/glasswindowbreak070'''b''')
+== Conclusion ==
+Don't forget to make a player start, a gravgun, and other things like a suit (or maybe a healthcharger).
-[[Image:wiseOnewayGlass03.jpg|thumb|150px|right|The three windows]]
-=== Layered texture ===
+Your finished map should look like this:
-The last example is our layered texture, created with [[func_illusionary]] entities.
-The first brush is only textured on the outside face; metal/metalfence004a
-The next brush is textured on two faces;
-# metal/metalgrate013a
-# brick/brickwall003a
-== Conclusion ==
-With the methods illustrated here you can create any type of One-way glass you need.
-{{Note|The player, and objects, can pass right through the illusionary wall.}}
-Keep in mind that while the '''nodraw''' texture doesn’t show it was invaluable in creating these effects.
 {|border="0" align="left" style="background:transparent" cellpadding="0" cellspacing="0"
@@ Line 85: / Line 112: @@
 == Wrap up ==
-There’s a lot more you can do, hopefully this article have stimulated your imagination.
+Feel free to play around see what works, hopefully this article have stimulated your imagination.
-* [http://type3studios.com/downloads/tutorials/SdkNutsTutorials/wiseOneWayGlass.zip The example used in this tutorial.]
+* [http://students.cup.edu/rox8872/fire_map.zip The example used in this tutorial.]
 <h2> Credits </h2>

Igniting entities: Difference between revisions

Revision as of 14:58, 21 March 2008

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