GML How can i manage a jump animation ?

[DavideMiccolis]

in my Idle state:

if (ground && keyjump)
{
vsp=-vspmax;

state=states.jump;   
}

My jump state

sprite_index=spr_player_jump;
if (!ground && vsp>0)
{ state=states.falling; }

//move air dx sx
if (!ground && move!=0)
{
image_xscale=move;
if (move==1)
{    hsp=scr_approach(hsp*0.85,hspmax*move,airacceleration); }

if (move==-1)
{ hsp=scr_approach(hsp*0.85,hspmax*move,airacceleration); }   
}

// little jump
if (keyjumprelease)
{
if (vsp<0)
{
vsp *=0.5;
}
}

//double jump
if (keyjump && !ground && djump>0)
{
vsp=-vspmax*percentualedoppiosalto;
djump--;}

Falling State

sprite_index=spr_player_falling;

if (ground)
{
    //double jump reset
    if (djump==0)
    {        djump++;    }
    
    state=states.idle;
}

if (!ground && move!=0)
{
    image_xscale=move;
    
    if (move==1)
    {         hsp=scr_approach(hsp*0.85,hspmax*move,airacceleration); }
    
    if (move==-1)
    {         hsp=scr_approach(hsp*0.85,hspmax*move,airacceleration);  }   
}

 

[Hyomoto]

Well, I can't make too many suggestions just based on the code you have here honestly. Mostly because I'm not *quite* sure what your end result is. It has a 2D beat-em-up or even a 2D fighting game appearance, so if you go back to a lot of 8 and 16 bit style games, you'll see the animation always plays fully. That is to say, there isn't a lot of platforming in those styles of games so the expectation is that the entire animation will play from beginning to end. If that's the case, you should be able to determine what frame to display based on what point in the jump you are currently at. I'm not sure if you've considered this already, but if you are using the built-in animation system it may not be the best way to control this. If you take control of which frame is being displayed manually:

jumpFrame = ( y - jumpStartY ) div 2;

draw_sprite( sprite_index, jumpFrame, x, y );

You can base your frame on the height of the jump. Obviously this is a generic suggestion. Another option would be to use keyframe data:

animation = [ 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 0, 0, 0];

draw_sprite( sprite_index, animation[ frame ], x, y );

Or event just a timer of some sort. Again, just a generic suggestion but might get you thinking about ways to handle this.

 

[olsyke]

https://www.gamasutra.com/blogs/Nat...tter_Animation_System_in_GameMaker_Studio.php

im building sort of a fighting game / beat em up, and this is what i went for, im a beginner tho, but it still might be worth taking a look

what it basicly does is let you hold a frame of animation for how long you want, and attaching other data to the frames