Hello,
I have 3DGS 7.

OK. This is driving me nuts! How do I make a character bounce "away" from an enemy when hit?

I've read quite a bit about "bounce" and "vec_to_angle"--but, I don't want the player's angle/pan to change. If the enemy hits the front, back or side of the player, then shoot the player in that direction. Does that make since?


Thanks in advance for any help. I could use a point in the right direction...
"No pun intended"

bounce is a direction-vector, just set the move-direction of the entity to the (scaled)bounce vector

I've tried a million ways. I can't get it to work.
I have very limited vector math skills.

Here's one of the ways I tried doing what you said:
...
if( bounce.x != 0 ){
vec_scale( bounce.x , 5 );
vec_set( playerMove.x , bounce.x );
}
...
c_move( my , playerMove , nullvector , etc.. );


Don't laugh.

I dont want to script anything right now , but I'd suggest you another way :
On collision , store player pan and change it to the bounce direction for relative movement (not absolute!). After that , retreive the original player pan. Your entity will appear to be always facing the same angle and move in a diffrent direction. Another suggestion is , decrease the diffrence between the two pan angles after a collision with bounce and you'll get a spherical movement , as if the force pushing the player in another way is decreasing.
You could do this pure mathematicaly with vectors & forces , but sometimes the 'ordinary' way isnt the easyest (I'm no good at math!)

Man, I am struggling with this...
I got the player ( aka Lana ) to bounce back. But it still doesn't take into account if she is facing away from the enemy when she is attacked. And sometimes it's totally unpredictable...

UHG~

Here's my messy code:

CODE-----------------------------------
while( my ){

my.pan = angle;

v += speed * time_frame;

if( v >= 30 ){ v = 30; }
if( v <= 0 ){ v = 0; }

//lana was hit
if( my.skill1 == 1 ){
v = 30;
b = -0.62; //bounce amount
}else{
b = 1;
}//end if

dx = (v*b) * cos( angle );
dy = (v*b) * sin( angle );

lanaMove.x = dx * time_frame;
lanaMove.y = dy * time_frame;
lanaMove.z = 0;

c_move( lana , nullvector , vector( lanaMove.x , lanaMove.y , lanaMove.z ) , GLIDE | IGNORE_PASSABLE );

wait( 1 );
}//end while
CODE-----------------------------------

OK, That last code was pointless obviously.

This seems to work. But, she goes shooting off the screen way to quickly! Any ideas? Thanks for any help you may have.

CODE------------------------------------------------------

...
var bounceDir;
...

function lanaHit(){

if( event_type == EVENT_IMPACT || event_type == EVENT_ENTITY ){

bounceDir = bounce;

}//end if

}//end function





//Action-------------
ACTION lana_action(){
lana = my;
clip_size = 0;

wait( 1 );
c_setminmax( my );

my.ENABLE_ENTITY = on;
my.ENABLE_IMPACT = on;
my.ENABLE_SCAN = on;
my.x = 0;
my.y = 0;
my.z = 0;
my.skill1 = 0; //isHit
my.event = lanaHit;


while( my ){

if( my.skill1 == 0 ){ //is not hit
lanaMove.x = speed;
lanaMove.y = 0;
lanaMove.z = 0;
}else{
vec_scale( bounceDir , 2 );
vec_set( lanaMove , bounceDir );
}//end if


c_move( my , lanaMove , nullvector , GLIDE | IGNORE_PASSABLE );

c_scan( my.x , my.pan , vector( 360 , 180 , 360 ) , SCAN_LIMIT | IGNORE_ME );

wait( 1 );
}//end while
}//end action
//Action------------
CODE------------------------------------------------------

Not to make things more complicated, but if you want a slower, more "realistic" bounce you could make lana a physics ent temporarily or if she already is, increase the inertia during the bounce.
cheers

Thanks tindust,
I'll give it a shot.

Actually. That's no good. She bounces all over the place.
I'd be happy if I could just get her to bounce away real quick, but not so far away. It doesn't have to look realistic. Something quick would be fine, just not shooting her off the level. LOL

Is there a way to tone down the code I wrote in my last post? A way to make her not shoot off the level at light speed?


Thanks for all the help so far...

Alrighty,
I think I got it. I used:

...
vec_normalize( bounceDir , 2 );
vec_set( lanaMove , bounceDir );
...

That seems to give me the effect I want.
But, it's still a little unpredictable when she turns or isn't moving...