MPAGD Fell to Far event

[eros]

Hi, newbie here, Im using MPAGD (thanks btw its awesome)  and have been putting together a platformer for the ZX following lots of tutorials and generally getting the hang of things.


I wanted to try the mechanism to kill the player should it fall from a certain height. Iv read the other posts on the forum regarding it, but i am not quite sure I understand it.

Basically if i have


IF TYPE = 0 ; PLAYER
KILL
ENDIFI have a default jump of 7... there is a note on in the TIPs that basically if the player falls at a JUMPSPEED of 8 or above, fell to far is called?
In this case, Jumping on the spot, kills the player each time.

If I add an IF statement to the Event Fell to Far such as


IF TYPE = 0 ; PLAYER

IF JUMPSPEED > 10
KILL

ENDIF
ENDIF
Basically nothing happens, the player doesn't die when falling, no matter the height (I used one of Minilop's guides, deep dive into jumping to check the speed and print it so i could get an idea of the speed)

Only thing I can think of is that basically at the point of collision with the ground, the jump speed is 0 , and such the IF statement is never satisfied.

If so... How might I go about this check? Or modify the default when the event is called?

Many thanks and again, super nice environment, always wanted to have a go at making a ZX game but couldn't get beyond moving simple characters around the screen. 

[ramon]

Best regards.

The solution:

Put this code anywhere you want inside your player event.

IF CANGODOWN
    LET A = JUMPSPEED
ELSE                        ; I hit the ground
    AT 4 1 DISPLAY A
    IF A >= 8
        LET A = 0
        KILL
    ENDIF
ENDIF

Explanation:

First: You have to know is that the sprite properties are only accessible during the sprite event. So the player's JUMPSPEED is only accessible in the player's event.

Second: The Fell too far event only occurs if JUMPSPEED is 8. Neither 7 nor 9.

Third: The script: "If I hit the ground and JUMPSPEED is greater than 8 it means I'm flying from very high." It must necessarily be in the Player event.

Extra: If you want to share JUMPSPEED with another event or with an enemy assign it a variable: for example LET H = JUMPSPEED to use it. Other properties are: X,Y,FRAME,TYPE,IMAGE,DIRECTION,SETTINGA,SETTING,JUMPSPEED or DATA.

[eros]

ah the player script, i might have known!

Thanks, i popped that in place and it works, kills the player for variable height drops, i had to add another nested if statement as when we hit walls sideways it puts the value at 100+ 

amazing thanks!!!

[ramon]

Congratulations. You're right. 

IF CANGODOWN
    LET A = JUMPSPEED
ELSE ; I hit the ground
    AT 4 1 DISPLAY A
    IF A >= 8
        IF A < 128    ; I am falling
            LET A = 0
            KILL
        ENDIF
    ENDIF
ENDIF