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Setting player's camera


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Yoi
New Member
Join Date: Nov 2018
Location: Russia
Old 11-26-2018 , 01:05   Setting player's camera
Reply With Quote #1

Hello, I am newbie, but I really cant get this problem solved.
I want the player's camera, that I can change any way I want (3rd person for example). I tryed to change every game frame like this:

Code:
public OnGameFrame()
{
	GetClientEyePosition(iClient1,vOrigin);
        GetClientEyeAngles(iClient1, vAngles);
	vAngles1 = vAngles;
	GetAngleVectors(vAngles, vAngles1, NULL_VECTOR, NULL_VECTOR);
	NormalizeVector(vAngles1, vAngles1);
	vOrigin[0] = vOrigin[0]-vAngles1[0]*100;
	vOrigin[1] = vOrigin[1]-vAngles1[1]*100;
	vOrigin[2] = vOrigin[2]-vAngles1[2]*100;
	TeleportEntity(iEntity, vOrigin, vAngles, NULL_VECTOR);//iEntity is a camera
}
it would work perfect... if there werent freezes(maybe works better on 100 tick). But I understood that its a bad idea. Next step I tryed to use SetParent:

Code:
public Action:CreateCamera(iClient, args)
{
	iEntity = CreateEntityByName("point_viewcontrol_survivor");	
        DispatchSpawn(iEntity);
	ActivateEntity(iEntity);
        SetVariantString("!activator"); 
	AcceptEntityInput(iEntity, "SetParent", iClient, iEntity, 0);
        TeleportEntity(iEntity, Float:{ -200.0, 0.0, 70.0}, Float:{ 0.0, 0.0, 0.0}, NULL_VECTOR);
        iCamRef[iClient] = EntIndexToEntRef(iEntity);
        AcceptEntityInput(EntRefToEntIndex(iCamRef[iClient]), "Enable", iClient);
}
It works MUCH better (with some freezes also), but... the rotate point of camera is wrong. The camera rotates around pivot point in the feet. I tryed to google for many days and I didnt find any way to change the rotate point(maybe I am looking bad).
I aslo tryed this code:
Code:
        new hOwnerEntity = GetEntProp(client,Prop_Send,"m_hOwnerEntity");
	SetEntProp(client, Prop_Send, "m_hViewEntity",hOwnerEntity);
	SetEntProp(client, Prop_Send, "m_iObserverMode", 4); // 4 is First person
but I become some kind of spectator and cant shoot and jump.

Maybe its bad idea to use sourcemod for this? Maybe I should use vscript some way? I really dont have any ideas. Pls haelp
Yoi is offline
Dragokas
Senior Member
Join Date: Nov 2017
Location: Ukraine
Old 12-04-2018 , 19:13   Re: Setting player's camera
Reply With Quote #2

Maybe it help:
https://forums.alliedmods.net/showthread.php?t=297161

++ (from @Silvers)
Code:
// Hooked 3 times, because each alone is not enough, this creates the smoothest play with minimal movement stutter
SDKHook(client, SDKHook_PostThinkPost, onThinkFunk);
SDKHook(client, SDKHook_PreThink, onThinkFunk);
SDKHook(client, SDKHook_PreThinkPost, onThinkFunk);
Is it L4d1 or 2 ?
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Last edited by Dragokas; 12-04-2018 at 19:14.
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Yoi
New Member
Join Date: Nov 2018
Location: Russia
Old 12-06-2018 , 23:49   Re: Setting player's camera
Reply With Quote #3

Thank you for answer. The Lux's plugin was the first thing I explored. My 2nd code from previous post is code I writed after reading Lux's .sp. But the problem is, when I SetParent the camera to player, camera rotates around the foots, not around the center of the player.

I don't really know how to work with SDKHook_PostThinkPost, but I found one function in Lux's plugin:
Code:
public Hook_OnPostThinkPost(iClient)
{
	if(!AreClientCookiesCached(iClient))//block everything until async stuff is done
		return;
	
	
	if(!IsPlayerAlive(iClient) || GetClientTeam(iClient) != 2 || !bClientPov[iClient] || !bShouldBePov(iClient))
	{
		if(!IsValidEntRef(iCamRef[iClient]))
			return;
		
		if(hClientDisableView[iClient] != INVALID_HANDLE)
			return;
			
		hClientDisableView[iClient] = CreateTimer(1.0, DisableView, GetClientUserId(iClient));
		
		DisableCam(iClient);
		return;
	}
	else
	{
		if(!IsValidEntRef(iCamRef[iClient]))
			if(!CreateCamera(iClient))
				return;
		
		static iModelIndex[MAXPLAYERS+1] = {0, ...};		
		if(iModelIndex[iClient] != GetEntProp(iClient, Prop_Data, "m_nModelIndex", 2))
		{
			iModelIndex[iClient] = GetEntProp(iClient, Prop_Data, "m_nModelIndex", 2);
			SetVariantString("eyes");
			AcceptEntityInput(EntRefToEntIndex(iCamRef[iClient]), "SetParentAttachment");
		}
		
		EnableCam(iClient);
	}
}
I must make something like this 3 times? It is possible to make this work for every-game-frame method? (really don't understand what exactly this function does ^^")

My game is L4D2.
Yoi is offline
Dragokas
Senior Member
Join Date: Nov 2017
Location: Ukraine
Old 12-08-2018 , 08:03   Re: Setting player's camera
Reply With Quote #4

You have to move code of your "OnGameFrame" to a callback of these 3 SDKs. All SDKs shoud point to the same callback. You can see using example in this plugin.
Executing code on each game frame is a very CPU expensive operation.

As about your second code, here is a description of all "point_viewcontrol_survivor" properties:
https://developer.valvesoftware.com/...ntrol_survivor
You can try something, like "SetLocalOrigin".

Also, isn't
Code:
TeleportEntity(iEntity, Float:{ -200.0, 0.0, 70.0}, Float:{ 0.0, 0.0, 0.0}, NULL_VECTOR);
in your code what you was looking for?
X = -200.0, Y = 0.0, Z = 70.0 ? Try change Y.

Also, some discussion and almost finished L4D1 port of Lux's plugin can be found here. Maybe it can help you somehow.
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Last edited by Dragokas; 12-08-2018 at 08:06.
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Yoi
New Member
Join Date: Nov 2018
Location: Russia
Old 12-14-2018 , 11:26   Re: Setting player's camera
Reply With Quote #5

I think you don't understand my problem properly - my camera rotates around pivot point. When I making SetParent to player its choosing the axises of pivot from player model. Pivot of player's model located at the foots. So any changes of origin and angles - won't help becase the problem is in the parent. Maybe I can some way attach to the standart camera entity (if it's exist) or any another entity that in the center of player?
My target - is to have custom thirdperson view like in Resident Evil from the shoulder.
P.S. I also tryed those function instead of game frame:
Code:
SDKHook(client, SDKHook_PostThinkPost, onThinkFunk);
SDKHook(client, SDKHook_PreThink, onThinkFunk);
SDKHook(client, SDKHook_PreThinkPost, onThinkFunk);
and it was still laggy.
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Dragokas
Senior Member
Join Date: Nov 2017
Location: Ukraine
Old Yesterday , 10:13   Re: Setting player's camera
Reply With Quote #6

To control third person camera there are ConVars (unfortunately, it's client side only):
Code:
c_thirdpersonshoulderoffset 20.0
c_thirdpersonshoulderaimdist 120.0
c_thirdpersonshoulderdist 40.0
c_thirdpersonshoulderheight 5
cam_ideallag 0
cam_idealyaw -5
cam_idealdist 20
Maybe it will help you.
__________________
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Last edited by Dragokas; Yesterday at 10:13.
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