Im a newbie. Downloaded last weekend the trail version, went throught all the workshops, did some moddeling ( first time ) and map making ( also first time ).
Im testing a tank model just to learn stuff. I have its body turning, moving and the turret is turning independendly.
Got the gunbarrel moving up and down within restricted elevation values.
My problem is, is that my tank has 2 orientations: its body and its turret.
Now i have 'found' a way to get the orientation of the tanks body. Actually, i've set its pan to 270
I've looked at ang_for_bone ( as i have 3 bones in my model ) but i've trouble grasping the concept behind hit. ( same with vec_for_bone ).
What im trying to do is make the damn tank shoot.
I figured i needed a couple of things:
- knowing the gunbarrels orientation,
- knowing the gunbarrels elevation;
- knowing the gunbarrels height, relative to the world 'ground', to be able to calculate a trajectory
Below the code i have so far.
I've used debug to have a look at the values coming from ang_for_bone and vec_for_bone but its not really helping me out.
Any help is appreciated.
Ed.
end_barrel_bone"" is de bone at the end of the barrel.
"turret_bone" is the bone that turns the turret.
"gun_bone" is the bone which makes the barrel go up & down
//////////////////
//
#include <acknex.h>
#include <default.c>
var debugValueEndBarrelBone = 0; // y-as
var debugValueEndBarrelBoneAngle = 0; // x-as
var debugValueTurretBone = 0;
var debugValueTurretBoneAngle = 0;
var debugValueGunBone = 0;
var debugValueGunBoneAngle = 0;
var scale = 1;
var temp = 0;
var temp1 = 0;
var temp2 = 0;
var temp3;
var temp4;
var temp5;
var temp6 = 0;
function default_state(){
//my.pan = -150;
var maxTurretTurnSpeed = 10;
var gunElevation= 0.1;
var maxElevation = 15;
var minElevation = -35;
var elevation = 0;
//scale within the default state
me.scale_x= scale;
me.scale_y= scale;
me.scale_z= scale;
//setting up orientation. Your looking at the front of your tank
me.pan = 270;
me.roll = 0;
me.tilt = 0;
// reset all the animations
// no animations present in the tank model at this time.
ent_animate( me, NULL, 0, 0);
while(1) {
if ( key_cul ){
ent_bonerotate(me, "turret_bone", vector( maxTurretTurnSpeed * time_step, 0, 0));
wait(1);
}
if ( key_cur ){
ent_bonerotate(me, "turret_bone", vector( -maxTurretTurnSpeed * time_step, 0, 0));
wait(1);
}
// ang_for_bone: orientatie van de turret tov de main body!!
//
vec_for_bone(temp1, me ,"end_barrel_bone");
ang_for_bone(temp2, me, "end_barrel_bone");
//ent_bonemove(me, "turret_bone",vector( temp3,temp4,temp5));
vec_for_bone(temp3, me ,"turret_bone");
ang_for_bone( temp4, me,"turret_bone" );
//debug data to try and understand what is going on.
debugValueEndBarrelBone = temp1;
debugValueEndBarrelBoneAngle = temp2;
debugValueTurretBone = temp3;
debugValueTurretBoneAngle = temp4;
if ( key_cuu ){
if ( elevation < maxElevation ){
elevation += 0.1;
ent_bonerotate( me ,"gun_bone",vector(0, 0, -gunElevation * time_step * 10) );
wait(1);
}
}
if ( key_cud ){
if( elevation > minElevation ){
elevation -= 0.1;
ent_bonerotate( me ,"gun_bone",vector(0, 0, gunElevation * time_step * 10 ) );
wait(1);
}
}
if (key_a)
// increase the pan angle of the tank
me.pan += 3*time_step;
if (key_d)
// decrease the pan angle of the tank
me.pan -= 3*time_step;
// move the tank forward
if(key_s)
c_move (me, vector( 0, 6 * time_step, 0), nullvector, GLIDE);
// move the tank backward.
if(key_w)
c_move (me, vector( 0, -10 * time_step, 0), nullvector, GLIDE);
wait(1);
}
}
function main(){
//load the level
level_load("testmap2.wmb");
wait(2);
// create the tank entity
ent_create ( "uglytank2.mdl", vector( 1,1,1), default_state );
// fixed camera position
vec_set(camera.x, vector (-600, 0, 100));
}
PS. Any comments or suggestions on my code are always welcome.
