[Luckylock]

This plugin provides lag compensation as well as cvars for weapon
damage & range values on tank rocks.

• Download Links
  
  Source
  Compiled
  
  
• Gamedata
  
  rock_lagcomp.txt
  
  
• Dependencies
  
  smlib
  
  
• Lag compensation for tank rocks
  
  The lag compensation is done by keeping track of the position vector history
  of the tank rock(s) for each previous n frames (defined by MAX_HISTORY_FRAMES).
  When a survivor fires his weapon, the client frame is calculated by this formula:
  
  Command Execution Time = Current Server Time - Packet Latency - Client View Interpolation
  
  Once the frame number that the client is running at is known, the plugin
  draws an abstract sphere about the size of the rock at the origin vector
  of the rock at client frame time. A line-sphere intersection is then calculated
  to detect collision. At that point, the weapon damages and ranges come into play.
  
  
• Weapon Damage
  
  For a given weapon damage, the damage is equal to the range at which one bullet
  will kill the rock. For example, a damage of 200 for a gun will kill a rock
  in one bullet at or below the range of 200 units. Damage is scaled based on
  distance with this formula:
  
  Final Damage = Damage / Distance
  
  
• Weapon Range
  
  The weapon range is set to prevent all damages above a certain range. For
  example, a range of 2000 on a gun category will mean that this type of gun
  will do no damage to the rock above 2000 units.
  
  
• Note about the reason for the custom hitbox, damage and range values
  
  Since other methods have been tried by other people (without success),
  I felt the best way to approach this was with an abstract hitbox that does not
  actually exist in the game. This plugin essentially buffs the survivors, so the
  balance needs to be considered and because of the way this plugin is
  implemented (hitscan) we can't just grab the vanilla gun damage values.
  
  
• Cvars (cvar name - default value)
  
  Here is the list of available cvars.
  
  
  • sm_rock_print - 0
    Toggle printing of rock damage and range values.
    
    
  • sm_rock_hitbox - 1
    Toggle for rock custom hitbox. (needed for this plugin to work)
    
    
  • sm_rock_lagcomp - 1
    Toggle for lag compensation.
    
    
  • sm_rock_godframes - 1.7
    Godframe time for rock (in seconds)
    
    
  • sm_rock_godframes_render - 1
    Toggles render of godframe visual feedback
    
    
  • sm_rock_hitbox_radius - 30
    Rock hitbox radius (in game units)
    
    
  • sm_rock_damage_pistol - 75
  • sm_rock_damage_magnum - 1000
  • sm_rock_damage_shotgun - 600
  • sm_rock_damage_smg - 75
  • sm_rock_damage_rifle - 200
  • sm_rock_damage_melee - 1000
  • sm_rock_damage_sniper - 10000
  • sm_rock_damage_minigun - 300
    
    
  • sm_rock_range_min_all - 1
  • sm_rock_range_max_all - 2000
  • sm_rock_range_pistol - 2000
  • sm_rock_range_magnum - 2000
  • sm_rock_range_shotgun - 1000
  • sm_rock_range_smg - 2000
  • sm_rock_range_rifle - 2000
  • sm_rock_range_melee - 200
  • sm_rock_range_sniper - 10000
  • sm_rock_range_minigun - 2000
    

[dustinandband]

Sick. Maybe in the future you could make a video showcasing the difference with / without the plugin.

[Luckylock]

Originally Posted by dustinandband Sick. Maybe in the future you could make a video showcasing the difference with / without the plugin.

Sure, here you go: https://youtu.be/Pa9WcpbSug0

[Lux]

Nice job it works very well thanks

[Lux]

Hello again, i made some changes and made a pull request for support l4d1 linux and windows.

https://github.com/LuckyServ/sourcemod-plugins/pull/2

Branch is here with l4d1 & windowns support.

Gamedata:
https://github.com/LuxLuma/sourcemod...ck_lagcomp.txt

Source:
https://github.com/LuxLuma/sourcemod...ock_lagcomp.sp

Binary:
https://github.com/LuxLuma/sourcemod...ck_lagcomp.smx

[Dragokas]

wow, very nice idea and realization, Luckylock !

Lux, thanks for backporting.

[V1SoR]

Avoid using OnGameFrame(). Use SDKHook w/ EntityThink() on each rock.

No clamping on client's cl_interp is being done. Sanitize it, it can be exploited with negative values and binds if used outside of typical confogl environment.

[Luckylock]

Updated: Added clamping to avoid potential exploit.

Using game frame is necessary for lag compensation to work properly, I'm not sure how the EntityThink works, could you explain it?

[Lux]

Originally Posted by Luckylock Updated: Added clamping to avoid potential exploit. Using game frame is necessary for lag compensation to work properly, I'm not sure how the EntityThink works, could you explain it?

OnGameFrame() is at the start of the server frame static.

Think is dynamic but usually most entities call it everyframe and is mid gameframe, it don't really matter if you use OnThink or OnGameFrame because both actions are before the rock has even moved or done anything if i recall correctly.

Visor probs mean a ThinkPost hook if that works on the rock.

[HarryPotter]

Very useful in l4d competitive versus
Help high ping players to easily shoot the tank rock

Thanks for your great work !