Landing States for Monsters when they jump

[Aerosplinter]

I am using A_ChangeVelocity to make my monsters jump, but is there a way to make landing states for the monsters when they land on the floor right after jumping?

[Matt]

The simplest way I can think of is to have the jump end in a state like this:

Code: Select all

flying:
 SKUL CCDD 1 A_JumpIf(floorz==z,"land");
 loop;

[Aerosplinter]

The simplest way I can think of is to have the jump end in a state like this:

Code: Select all

flying:
 SKUL CCDD 1 A_JumpIf(floorz==z,"land");
 loop; 

Unfortunately, It did not work. The enemy was staying "frozen" in its hopping state even if it landed on the floor.

Here is my code. I used A_CheckFloor, but the results were the same with how I tried to use A_JumpIf(floorz==z,"land").

Code: Select all

Hop:
	ROY4 VVUU 1 A_FaceTarget(3,270)
	TNT1 A 0 A_Playsound("ROYHOP")
	ROY4 R 1
	{
		A_ChangeVelocity(0,0,11);
		A_FaceTarget(3,270);
		A_Recoil(Frandom(-20,-8));
	}
	ROY4 RRRRRRR 1 A_CheckFloor("Land")
	ROY4 RRRRR 1 
	{
		A_Chase("_a_chase_default","_a_chase_default",CHF_DONTMOVE|CHF_DONTTURN);
		A_CheckFloor("Land");
	}
	ROY4 SSSSSSSS 1 
	{
		A_Chase("_a_chase_default","_a_chase_default",CHF_DONTMOVE|CHF_DONTTURN);
		A_CheckFloor("Land");
	}
	ROY4 TTTTT 1 
	{
		A_Chase("_a_chase_default","_a_chase_default",CHF_DONTMOVE|CHF_DONTTURN);
		A_CheckFloor("Land");
	}
	TNT1 A 0 A_Jump(256,"HopContinue")
	Loop
	
	HopContinue:
	ROY4 T 1 
	{
		A_Chase("_a_chase_default","_a_chase_default",CHF_DONTMOVE|CHF_DONTTURN);
		A_CheckFloor("Land");
	}
	Loop
	
	Land:
	ROY4 U 1 A_Playsound("ROYLAND")
	ROY4 U 1 
	ROY4 VWWXX 1
	Goto See

[Void Weaver]

If you've tried to use A_JumpIf like as do you use A_CheckFloor inside of anon. function, then it obviously wrong. It should be written like as if|else condition with a some 'return' exits:

Code: Select all

ROY4 RRRRR 1
   {
      A_Chase("_a_chase_default","_a_chase_default",CHF_DONTMOVE|CHF_DONTTURN); //Don't forget that A_Chase allow to jump out from the current state!
      If(A_CheckFloor("Land")){Return state("Land");}
      Else{Return state("");}
   }
 ROY4 SSSSSSSS 1
   {
      A_Chase("_a_chase_default","_a_chase_default",CHF_DONTMOVE|CHF_DONTTURN);
      If(floorz==z)
          {
             Return state("Land");
          }
      Else
          {
             Return state("");
          }
   }

[Aerosplinter]

If you've tried to use A_JumpIf like as do you use A_CheckFloor inside of anon. function, then it obviously wrong. It should be written like as if|else condition with a some 'return' exits:

Code: Select all

ROY4 RRRRR 1
   {
      A_Chase("_a_chase_default","_a_chase_default",CHF_DONTMOVE|CHF_DONTTURN); //Don't forget that A_Chase allow to jump out from the current state!
      If(A_CheckFloor("Land")){Return state("Land");}
      Else{Return state("");}
   }
 ROY4 SSSSSSSS 1
   {
      A_Chase("_a_chase_default","_a_chase_default",CHF_DONTMOVE|CHF_DONTTURN);
      If(floorz==z)
          {
             Return state("Land");
          }
      Else
          {
             Return state("");
          }
   }

It finally worked!! However, it does not work on actors, so is there a way for this to work on actors?

[Void Weaver]

Because deco hasn't direct way to check what is landing plane is - actor or floor, AFAIK it's possible only via ZScript.

In your case is much logical to make check for -VelZ and once (after flying down after monster jump) it will equal to 0, then landing are happens.
Similar solution for similar question. Something like:

Code: Select all

ROY4 RRRRR 1
   {
     If(VelZ<0){A_Chase("_a_chase_default","_a_chase_default",CHF_DONTMOVE|CHF_DONTTURN);Return state("");}
      Else{Return state("Land");}
   }

[Aerosplinter]

I am still wondering if there is another way for this to work for actors, because with "If(VelZ<0)", it immediately goes to the landing state when they jump. There needs to be a clear solution for this...

[TXTX]

Had some old code for decorate before I switched to zscript that might work.

Code: Select all

FallState:
RVM4 S 1 A_JumpIf(momz<=0,1)
Wait
RVM4 S 1
RVM4 T 1 A_JumpIf(momz==0||waterlevel>1,"See")
Wait

Try that. Its not as accurate as zscript but it worked for me.
Also the double check is needed since using momz==0 alone can cause them to stop when at the tip of their jump.

[Aerosplinter]

Had some old code for decorate before I switched to zscript that might work.

Code: Select all

FallState:
RVM4 S 1 A_JumpIf(momz<=0,1)
Wait
RVM4 S 1
RVM4 T 1 A_JumpIf(momz==0||waterlevel>1,"See")
Wait

Try that. Its not as accurate as zscript but it worked for me.
Also the double check is needed since using momz==0 alone can cause them to stop when at the tip of their jump.

For your A_JumpIf, does it mean that it goes to the "Land" state as the actor surfaces on the floor?

[TXTX]

Had some old code for decorate before I switched to zscript that might work.

Code: Select all

FallState:
RVM4 S 1 A_JumpIf(momz<=0,1)
Wait
RVM4 S 1
RVM4 T 1 A_JumpIf(momz==0||waterlevel>1,"See")
Wait

Try that. Its not as accurate as zscript but it worked for me.
Also the double check is needed since using momz==0 alone can cause them to stop when at the tip of their jump.

For your A_JumpIf, does it mean that it goes to the "Land" state as the actor surfaces on the floor?

Yes, the "See" part at the end is the state you want after the monster stops falling. That can be changed to whatever you like. Change it to "Land" if you want to go specifically to that state.