Hi guys,

I just upgraded to the commercial edition 6.31.4 (and am trying to make physics work (I couldn't make it work in the trial; was it disabled?). I've got a script which I think should create an entity then send that entity off into the sunset. For some reason this isn't working. Here's the script, what have I done wrong?
Code:

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var video_mode = 8;	 // screen size 1024x768
var video_depth = 32; // 32 bit colour D3D mode

string lvlStr = <junk.wmb>;
string witchStr = <cbabe.mdl>;

var witchPos[3] = 100, 0, 20;
var witchForceVec[3] = 0, 0, 200;

entity* witch;

function physFunction() {
        witch = me;
	phent_settype(witch, ph_rigid, ph_box);
	ph_setgravity(nullvector);
	phent_setmass(witch, 10, PH_BOX);
	phent_setdamping (witch, 0, 0);
	while(1) {
		if(key_a == 1) {
			phent_addcentralforce(witch, witchForceVec);
		}
		wait(1);
	}
	phent_settype(witch, 0, 0);
}

function main() {
	level_load(lvlStr);
	wait(1);
	ent_create(witchStr, witchPos, physFunction);
}  

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Code looks good. Try putting breakpoints in there to make sure that all the statements are indeed executed.

maybe a stupid question, but you sure you assigned that to the model *i see it's a function, only actions can be attached :P*

regards,

Did you know: the physics stuff only works inside a complete environment. I had built a simple test level consisting of a large cube. The testing took place on top of this cube. I tried again inside a cube and everything worked fine. I hate computers. I need more prozac buttered toast.

Quote:

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only actions can be attached

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It's my understanding that an action is attached by the world editor and a function is attached by ent_create. To quote the manual:

Quote:

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ent_create(string filename, vector Position, function);

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and then:

Quote:

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The given function will start immediately after creation

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The word action is never mentioned. Is my understanding of the situation correct, or am I attaching the wrong things?

Thanks guys.

I think its supposed to be "the given action", because you cant assign a function alone to an entity. You need to assign and action, which calls functions inside of it. Below is a snippet taken from Grimber's phyisics tutorial:

Action my_car
{
//added default camera
player = my; //set me to the player
//first we let the engine know what type the physics object is
phent_settype(my,PH_RIGID,PH_box);
//next we set the mass of the object
phent_setmass(my,23,PH_box);
//we then set the friction we want
phent_setfriction(my,25);
//then we set the elasticity of the object (bounciness)
phent_setelasticity(my,50,5);
//then we set the damping
phent_setdamping(my,50,90);
//then we set our world gravity
ph_setgravity ( vector(0,0,-386) );
}

All of that is called within an action, and will be exececuted once the entity is created. Just change the function word to action:


function physFunction() {
witch = me;
phent_settype(witch, ph_rigid, ph_box);
ph_setgravity(nullvector);
phent_setmass(witch, 10, PH_BOX);
phent_setdamping (witch, 0, 0);
while(1) {
if(key_a == 1) {
phent_addcentralforce(witch, witchForceVec);
}
wait(1);
}
phent_settype(witch, 0, 0);
}


action Marmaduke_Physics_Object

{
witch = me;
phent_settype(witch, ph_rigid, ph_box);
ph_setgravity(nullvector);
phent_setmass(witch, 10, PH_BOX);
phent_setdamping (witch, 0, 0);

while(1) {
if(key_a == 1) {
phent_addcentralforce(witch, witchForceVec);
}
wait(1);
}
phent_settype(witch, 0, 0);



}

Quote:

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It's my understanding that an action is attached by the world editor and a function is attached by ent_create. To quote the manual:

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You're right. You can attach a function to an entity in WED - but you would have to type it in itself, it would show in the actions list. You can ass well assign an action to it via ent_create.
The actions are basicaly functions that are shown in wed.