Can falling damage scale with jump height?

[Heisanevilgenius]

I'm working on a wad with falling damage and special RPG-like abilities and items that change jump height. Problem is that once your jump stat reaches a certain level, your character takes damage every time they land. Is there a way to alter fall damage on a per player basis so that it scales with their jump height?

[Hellser]

Cleaned up thread, all users may now resume scripting!

[Jarewill]

Thanks Hellser, let me just repost what I posted prior.

While I don't know how to override default fall damage behavior, I still couldn't find it in the ZScript files, you can write your own fall damage logic in ZScript.
An example taken from Lost Frontier:

Code: Select all

	double pvel; //Save the previous Z velocity to this variable
	Override void Tick()
	{
		pvel=vel.z; //Refer to above
		Super.Tick(); //Let the logic run for a tick for velocity to update
		FallDamage(); //Call the fall damage function
	}
	void FallDamage()
	{
		double cvel = vel.z; //Get current Z velocity, not needed but I did it for readability
		int damage;
		If(pvel<cvel) //If current velocity is bigger than previous velocity (player hit ground)
		{
			If(pvel<=-23&&player&&!(player.cheats&(CF_GODMODE|CF_GODMODE2))){Die(null,null,0,"Falling");} //If the velocity excels -23, kill the player
			Else
			{
				If(pvel<=-16){damage=(int)(pvel);} //Otherwise calculate damage based on velocity
				Else If(pvel<=-11){damage=(int)(pvel)/4;}
				DamageMobj(null,null,-damage,"Falling"); //And damage the player
			}
		}
	}

You will have to alter the math to include the player's jump height (jumpz variable) into account and change how much damage is dealt.
For more context regarding fall speeds, refer to this wiki page.

[Heisanevilgenius]

Thank you, that's really helpful! It's going to take me a while to figure all this out but I feel more confident I can do it now.

I guess I'm going to have to disable the falling damage in MAPINFO since this new special falling damage in Zscript will operate automatically, by the looks of it?

[Heisanevilgenius]

Woo! I got it to work!

Code: Select all

	Override void Tick()
	{
		pvel=vel.z;
		Super.Tick();
		FallDamage();	
	}
	void FallDamage()
	{
		double cvel = vel.z;
		double jumpvel = pvel+JumpZ;
		int damage;
		If(pvel<cvel)
		{
			If(jumpvel<=-11){damage=(int)((0-jumpvel)*2);}
			If (damage>0) {
				DamageMobj(null,null,damage,"Falling");
			}
		}
	}

I'll probably have to tweak the falling damage formula to get it to a good balance, but I did away with the instakill. You can still die from falling too much but if you get your jump stat really high (and I mean ridiculously high) you can fall almost any height without taking damage.