window panel element not working

Posted By: badapple

window panel element not working - 01/09/18 20:52

hello i am trying to create a bargraph to display a var with the window panel element and it shows it on screen but the window bar starts at dx value and does not change according to the var assigned to it . any ideas why? i am using a8 free lite c the bmap image is 32 by 32 pcx

here is the code

#include <acknex.h>
#include <default.c>

var players_health =100;

PANEL* bars_pan =
{

pos_x = 0;
pos_y = 8;
layer = 1;
window(2,2,200,10,"bargreen.pcx",players_health,0);
flags = SHOW;
}

function main()
{
video_screen = 1;
video_mode = 8;
level_load ("");

while (1)
{

if (key_1) players_health += 2 * time_step;

if (key_2) players_health -= 2 * time_step;

wait(1);
}
}

Posted By: 3run

Re: window panel element not working - 01/09/18 21:12

Hey man!

I'm happy to see you back on forum!

I never worked with 'window' and also couldn't get it working (for the first try). For bar graphs I used to scale simple panels.

Here an example (also used 32x32):

Code:

#include <acknex.h>
#include <default.c>

var players_health = 100;

BMAP* bar_pcx = "bar.pcx";

PANEL *bars_pan = { 

	pos_x = 8;
	pos_y = 32;
	layer = 1;
	bmap = bar_pcx;
	flags = SHOW;
	
}

function main(){
	
	fps_max = 60;
	
	video_screen = 2;
	video_mode = 8;
	
	level_load("");
	wait(3);

	while(!key_esc){ 
		
		players_health -= 5 * (key_1 - key_2) * time_step;
		players_health = clamp(players_health, 0, 100);
		DEBUG_VAR(players_health, 10);
		
		
		bars_pan->scale_x = maxv(0.05, (players_health / 25));
		bars_pan->scale_y = 0.5;
		
		wait(1);
		
	}
	
}

Also, will you run your webpage again? I remember it had a lot of useful stuff in it! F.e. mortair example

My best regards!

Posted By: badapple

Re: window panel element not working - 01/09/18 21:32

ty 3run i like your example works great ! two thumbs up there. but i would still like to know why window isnt working (i hate it when things dont work right ) pet peev , appreciate the fast response and help thx again man

. and i lost all that content on the website will try to get another going , and ya mortar was cool lol.

Posted By: badapple

Re: window panel element not working - 01/09/18 21:55

if i want to increase the players max health the bar increases also i want the bar to stay at the same total length no matter what i increase the health to and still represent the var like it does now (moving up and down as it changes) any ideas? (got it resolved)well this question resoveled . window still not working

Posted By: txesmi

Re: window panel element not working - 01/10/18 10:51

Hi,
a window is a panel element that shows a part of a bitmap. The variables set the offset of the upper-left corner of the window from the upper-left corner of the bitmap in pixels.

Look at templates bluebar.pcx file. The upper half part of the bitmap is black (translucent in the engine) and the lower half part is the bar itself. This way, the upper half part is shown when the bar is empty, so the offset is 0. And the lower half part is shown when the bar is full, so the offset is the half of the bitmap height.

With this bitmap<->window realationship in mind, you only need to factorize the health by a healthMax (or so) variable and multiply it by the half of the bitmap height.

Code:

#include <acknex.h>
#define PRAGMA_PATH "%EXE_DIR%templatesimages"

FONT *fntCourier20b = "Courier New#20b";
BMAP *bmpBar = "bluebar.pcx";
var nHealthBar = 0;
var nHealthMax = 100;
var nHealth = 100;

PANEL *panHealth = {
	pos_x = 100;
	pos_y = 100;
	window ( 0, 0, 5, 80, bmpBar, 0, nHealthBar );
	digits ( 20, 40, "Health     [Q+][A-]: %3.1f", fntCourier20b, 1, nHealth );
	digits ( 20, 60, "Health Max [W+][S-]: %3.1f", fntCourier20b, 1, nHealthMax );
	flags = SHOW;
}

function healthBarUpdate () {
	nHealthBar = ( nHealth / nHealthMax ) * ( bmap_height(bmpBar) / 2 );
}

function healthUp () {
	while ( key_q ) {
		nHealth = minv ( nHealth + 5 * time_step, nHealthMax );
		healthBarUpdate ();
		wait(1);
	}
}

function healthDown () {
	while ( key_a ) {
		nHealth = maxv ( nHealth - 5 * time_step, 0 );
		healthBarUpdate ();
		wait(1);
	}
}

function healthMaxUp () {
	while ( key_w ) {
		nHealthMax += 5 * time_step;
		healthBarUpdate ();
		wait(1);
	}
}

function healthMaxDown () {
	while ( key_s ) {
		nHealthMax = maxv ( nHealthMax - 5 * time_step, 1 );
		nHealth = minv ( nHealth, nHealthMax ); 
		healthBarUpdate ();
		wait(1);
	}
}

function main () {
	fps_max = 60;
	healthBarUpdate ();
	on_q = healthUp;
	on_a = healthDown;
	on_w = healthMaxUp;
	on_s = healthMaxDown;
	while ( !key_esc )		
		wait(1);
	sys_exit ( NULL );
}

Salud!

PD: You might redo the engine tutorial about windows. I guess it is clearifier enough.