I have gone through many tutorials. Most of the older tutorials do not work as the syntax has change and keywords have been replaced.

I have a spaceship entity and I want it to be the player. I need to learn how to make it move forward, left, right, etc.

Can anyone help?

Thanks,

Kevin

Thank you. I will "chew on this" for a while.

Essentially, you want to update the player's x,y,z according to key strokes and allow it to move with its own orientation rather than with world coordinates.



Q&D movement code, just to show you the basics.

This code allows the player to move forward or backwards and turn, no gravity or strafing (gravity would be a negative z component in the absolute distance vector and strafing would use the y component of the speed vector).

The way it works is this: Key_w and key_s equal 1 or 0 if pressed or not, so speed.x is:
If key_w and not key_s:
5 * (1 - 0) * time_step = 5 * 1 * time_step = 5 * time_step
If key_s and not key_w:
5 * (0 - 1) * time_step = 5 * -1 * time_step = -5 * time_step
If neither:
5 * (0 - 0) * time_step = 5 * 0 * time_step = 0 * time_step = 0
If both:
5 * (1 - 1) * time_step = 5 * 0 * time_step = 0 * time_step = 0

We add in time_step so the speed stays the same, even if the frame rate changes.

The my.pan calculation works the same way.

We stick this vector in the relative distance parameter of c_move so it moves along its origin's orientation and not the world's orientation (otherwise we'd go forward, facing sideways). We also want c_move to ignore_passable and glide. c_move also gives us collision detection. In contrast, directly manipulating the objects .x, .y, and .z values does not give us collision.

Movement gets more complicated than this if you want to add more realism. Friction, speed changing on slopes, gravity, etc, but I just wanted to show the basic movement.

EDIT: The link in my sig goes to my programming blog, my most recent post has the entire action for my script. While it is unfinished and has a few problems yet, you can take a look at it and perhaps learn from it. It is Lite-C.

That's what I'm looking for is the basics. But how do I assign my entity to use the script? And do I put in in the Lite-c script or the wdl file?

Hi
i recommend use the C-Lite workshop as starting guide. The manual is helpful with code too. Start learning the use of SED(script editor) and the WED.
small code using SED assuming there is a model named 'myplayer.mdl'
http://server.conitec.net/down/litec.zip

As has been mentioned, a tutorial would do you good, but for my little example there, there are two ways:

1. Place the entity in WED, go to the Behavior panel, click on the New button (the open folder icon under the word "action") and if you don't see the action on the list, write the action down (it IS case sensitive)

2. Create the entity via script with ent_create("yourmodel.mdl",vector,moveMe);


Also, my example is Lite-C, so you'd save it in a .c file, but if you wanted C-Script, just remove the parenthesis at the end of the aciton name.

Now that is making sense. I didn't know you could type in an action. Cool. I think I can make progress today and maybe make some sense of all this stuff that I've read.

Thank you all!

Alright. I have made a level in WED. I have a model of a spaceship and some prefabs and a sphere of stars surrounding it.

I made a lite-c file called move.c with the following code:

VECTOR speed;

vec_zero(speed);

action moveMe()
{
while(1)
{
my.pan += 5 * (key_a - key_d) * time_step;
speed.x = 5 * (key_w - key_s) * time_step;
c_move(my,speed,nullvector,IGNORE_PASSABLE | GLIDE);
wait(1);
}
}


I added the moveMe action to my spaceship.

I have included the move.c file to read before the level comes up (with the rest of the includes).

When I run the level, it says that moveMe cannot be found.

I did click the A6 template for the script.

Just a guess... does your include line have brackets <> or quotation marks "" around the file name? I've run into this when I accidentally used brackets.

The line should look like this:

#include "move.c";

not like this:

#include <move.c>