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This video.

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I'm going to do some pathfinding.

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So I got this guy here.

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I named him Sly Dog, and then he's going to find that gold.

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There are no pre-programmed wave points.

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I'm just going to hit the play 5 seconds after the game starts up.

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He's going to start running.

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Well, it's going to start now, right?

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So we've got to start looking.

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There he goes.

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And he's finding his way.

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He's going to jump that little thing.

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And he found the gold.

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That's pretty cool.

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Pathfinding is a very handy tool.

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Let's go ahead and get started with that.

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All right.

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So I'm in my NPC work still and I deleted Sly Dog and I deleted the treasure so you could build that

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with me.

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I trust that you could put your own obstacles.

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You actually don't even really need it, but it's going to be boring if they don't run around if your

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little guy doesn't run around stuff.

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So let's go ahead and put our treasure.

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Basically, it's a part.

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There you go.

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And we'll call it treasure.

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And then make it like yellow or something like gold and then maybe metal.

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Cool.

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Got a bar of gold and now we've got to make Sly Dog or any NPC, any name of choice.

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I'm going to go to my toolbox home toolbox, and I'm just going to get Ralph and I'm going to rename

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them.

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And there are some waypoints there.

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Oh yeah, we have two scripts.

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That's all right.

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We could change.

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Ralph I probably should just saved them off without the waypoints.

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Let's call Ralph something else.

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We can call them slaw dog.

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Let's eat hot dogs with co slaw.

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There we go.

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And I'm going to get rid of the thumbnail camera.

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Should I save that?

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I'm going to get rid of the waypoints.

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We're going to generate our own and move NPC.

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I'm going to get rid of everything but the char.

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Let's define the rest of our variables that we're going to need for pathfinding.

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I'm going to start out with the treasure.

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Right.

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And remember what we have in the workspace, right?

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Remember, treasure is just a part and humanoid root parts are just parts.

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So if you blend the last video of this video, you could use pathfinding to chase players around and

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other non playing characters by using that fine closest HR app or fine closes char that we did in the

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last video.

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So get a little bit creative and start blending this stuff, but I'm just using a part to keep it simple

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for now.

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All right.

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Now what I'm going to need is the path finding service right game, get service, pathfinding service,

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and that's going to allow me to compute my waypoints between me and where I want to go.

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In this case, the treasure.

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I'm going to need a path, right?

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I'm going to get the path from the path finding service path, finding service, colon and create path.

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There you go.

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It gives you a little explanation.

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What else are we going to need?

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Oh, we're going to need to keep track of the waypoints we're on when we're running around.

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So I'm going to do a waypoint index.

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I'm going to initialize it to one.

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Right.

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And we're also going to need a waypoints table.

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We'll just make it empty to store our waypoints when we compute them.

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What else am I going to need?

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I got my character.

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I need the humanoid.

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I probably should have deleted it from Ralph, but that's all right.

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We'll just redo it.

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Chas, wait for child.

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I'll do a wait for child humanoid.

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And we need the help.

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Wait for child humanoid root part.

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Let's go down to lines and then define the function.

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So local function follow path underpass in the goal.

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Right?

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Or it could be the HRP if you were if you're chasing somebody.

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Right.

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That's a part.

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The goal is the part.

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And I'm going to get a I'm going to use my path variable and then compute a sync, right?

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Compute a sync.

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And I have to have the start and the stop and this is going to compute my path.

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So the start is me, my HPE position, my humanoid route, part position, and then the goal is where

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I want to go, but I need that position to and I'm going to re initialize my waypoint, Oh my gosh,

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my waypoints table right with this the curly brackets there, because I might call this over and over

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again and this might have waypoints in it.

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So let's just clear it out before we go to put new ones in.

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I'm going to do it if statement and I check my path status.

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Right.

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So I did the compute and now I want to know the status of that computation.

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We're going to compare it against this e nym path status, success to see if we have a success.

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Do we have a success?

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We'll do loops path colon, get waypoints.

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There we go.

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And that's only going to happen if there's a success.

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If there's a failure, this is going to leave the function and nothing's going to happen.

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So you'll have to do some checking if you want to, if you want it to be robust.

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Right.

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So now I want to get my w p index, make that one.

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We're going to start fresh on our waypoint path and then I'll say humanoid move to and I get my PES.

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This is very similar to our patrol, but we did this dynamically.

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We're going to get our waypoint index dot possession.

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All right.

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Now, the thing is, if we get here, we need to get to the next position.

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If you'll remember, two videos back, we did that, so we had this huge move to finish, right?

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And then we connected it to a function, an anonymous function.

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I did not do this in the in the simple patrol, but we have available to us a reached flag.

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So if the humanoid did make it to this point, this will be true.

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If it fell, if it timed out, if 8 seconds went by and didn't get there, this will be false.

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So you could do stuff with that, right?

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Like if you get stuck.

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So I'll say if reached and WP index is greater than.

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No.

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Is the less that we want to make sure there's more left.

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The number of waypoints in our table, then.

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Let's go ahead and say WP index plus equals one.

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Let's add let's go to the next index for our waypoints and then I need to check between every waypoint

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if I need to jump.

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So I'm going to do this.

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Woops.

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WP index dot action equals.

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So if the waypoint action equals E waypoint path action dot jump, we need to jump.

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So I'll say.

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HUME Jump.

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So we're adding jumping to this.

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True.

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All right.

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And then.

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We need to do to move to the next waypoint.

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WP -- WP index dot possession.

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Cool.

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Now that should work.

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The only thing I'm not handling right now is if something dynamically blocks our path.

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But we're going to do that.

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We're going to do that in the next video.

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It's not going to be that hard.

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This is the meat of it and we're not going to start over.

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We're not going to have to delete anything.

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I do need to test this, though, and we don't have any update loops or anything, so we'll just call

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it once.

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We'll wait 5 seconds and then we'll do a follow path, pass in the treasure and that we should find

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it.

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So let's go here.

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There's our little guy.

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We're going to spawn here.

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I move this up so we could see it, so we could see the action.

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And let's see.

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Ah!

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Hey, where are you going?

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Oh, man.

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Oh, you ran around it.

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Oh, that's kind of funny.

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The AI outsmarted me, but he made it to the treasure, so that's cool.

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Well, let's go ahead and move them and just check to see if he can go through the maze.

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I want to see him jump.

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So let's get him a little closer to entice him to go through the maze.

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Maybe like here.

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I don't want to run around the other way.

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That would be frustrating.

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Here we go.

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There you go.

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Run through the maze.

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Andy jumped.

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That's cool.

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All right.

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So the next video will add, We'll have to do a little trigger and then make a door pop up, maybe make

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this get bigger or something like that.

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And then he has to re compute his waypoint pass to get to his treasure.

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So you'll have to run around it then.

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That'll be cool.