1 00:00:03,110 --> 00:00:07,430 In this lecture we're setting up so that when we run, we change to our running animation state, and 2 00:00:07,430 --> 00:00:10,640 then when we stop and idle, we're back into our idling animation state. 3 00:00:10,640 --> 00:00:15,200 Just a reminder, in case you've forgotten, the animated window is where we can see the animator information. 4 00:00:15,200 --> 00:00:19,340 And if we click on play, you can see that the character is probably just going to be idling, I think. 5 00:00:19,340 --> 00:00:20,420 Idle, idle, idle. 6 00:00:20,420 --> 00:00:20,720 Yeah. 7 00:00:20,780 --> 00:00:25,100 They see the idle is going backwards and forward as the animation loops through and that character is 8 00:00:25,100 --> 00:00:30,800 just idling on the spot we set up before and is running bool that if it's true then see our character 9 00:00:30,800 --> 00:00:34,850 is running and then if is running is false then goes back to idling. 10 00:00:34,850 --> 00:00:37,310 So that's the essence of what we're trying to do in our code. 11 00:00:37,310 --> 00:00:41,870 We want to say if there's a particular condition met, then turn this ball to be true. 12 00:00:41,870 --> 00:00:42,680 What is that condition? 13 00:00:42,680 --> 00:00:46,880 Well, if we're running, of course, and that's going to come from whether we're pushing the controller 14 00:00:46,880 --> 00:00:49,190 or the keyboard, right and left. 15 00:00:49,190 --> 00:00:54,260 So over in our code, the very first thing we need to do is set up a reference for our animator or cash 16 00:00:54,280 --> 00:00:55,250 reference the animator. 17 00:00:55,250 --> 00:00:56,930 So little micro challenge for you here. 18 00:00:56,930 --> 00:00:59,870 Pause a video and cache a reference to the animator. 19 00:01:02,760 --> 00:01:04,290 Underneath the mirror your body. 20 00:01:04,290 --> 00:01:10,530 I'm going to create a variable which is of type animator and I'll call this my animator using the my 21 00:01:10,530 --> 00:01:15,450 convention here, my animator, my rigid body, etc. Now within start I'm going to copy the previous 22 00:01:15,450 --> 00:01:15,840 line. 23 00:01:15,840 --> 00:01:18,180 I don't know if that's going to save me a lot, but we'll see. 24 00:01:18,300 --> 00:01:21,590 Instead of my rigid body, it's going to be my animator. 25 00:01:21,600 --> 00:01:26,280 If I can spell animator, get component is going to be animator. 26 00:01:26,310 --> 00:01:26,760 So there we go. 27 00:01:26,760 --> 00:01:30,780 We've cached a reference, the animator that we can use in any place throughout this particular class. 28 00:01:30,780 --> 00:01:34,830 Now, where's the logical spot for us to have the animation play for running? 29 00:01:34,830 --> 00:01:39,000 Well, it's in the run method, so give ourselves a little bit of space in here. 30 00:01:39,000 --> 00:01:42,690 We'll start by doing this in a simple way and then we'll improve it after that. 31 00:01:42,690 --> 00:01:48,690 So the simple way my animator dot set bool, that's how we can change the ball from true to false. 32 00:01:48,690 --> 00:01:51,960 And in parentheses, the first part of this is the name of the ball. 33 00:01:51,960 --> 00:01:57,300 So I'm going to jump back over into my animator just click on is running a couple of times copy that. 34 00:01:57,300 --> 00:01:59,640 So I get the exact spelling this string references. 35 00:01:59,640 --> 00:02:04,350 We don't really like string references, but sometimes we use them just because we got two and then 36 00:02:04,350 --> 00:02:08,699 comma and we'll say true that will set our animation to be is running. 37 00:02:08,699 --> 00:02:09,780 Let's see if that works. 38 00:02:09,780 --> 00:02:14,550 First of all, click on play and instead of idling you can see our character is running as evidenced 39 00:02:14,550 --> 00:02:17,460 by our animation looping through the running state. 40 00:02:17,460 --> 00:02:17,910 Excellent. 41 00:02:17,910 --> 00:02:19,620 So that's the first part of what we wanted to do. 42 00:02:19,620 --> 00:02:24,390 But we need to set something up so that we're only running if we're actually moving. 43 00:02:24,420 --> 00:02:26,790 The challenge is to finish the run state. 44 00:02:26,790 --> 00:02:32,130 So make the is running ball true if we're running and false if we're not and if that's enough for you 45 00:02:32,130 --> 00:02:34,950 to go on, if you're ready to dive into that challenge, take that on. 46 00:02:34,950 --> 00:02:37,260 Now, if you want a hint, I'll give you a hint. 47 00:02:37,260 --> 00:02:43,260 And that hint is going to be to use the code we created for flipping our sprite. 48 00:02:43,260 --> 00:02:48,750 So somewhere within flipping our sprite, we're saying if the player is actually moving, then do this 49 00:02:48,750 --> 00:02:53,280 thing so you can grab a line from that previous code we created to see if our character is moving. 50 00:02:53,280 --> 00:02:55,110 So pause the video, take on that challenge. 51 00:02:55,110 --> 00:02:56,220 See you back in when you're done. 52 00:02:58,870 --> 00:03:01,750 What is this mysterious line I speak of? 53 00:03:01,750 --> 00:03:02,170 So. 54 00:03:02,200 --> 00:03:04,610 Ball player has horizontal speed. 55 00:03:04,630 --> 00:03:09,130 If our velocity is greater than zero or epsilon. 56 00:03:09,130 --> 00:03:14,200 So I'm going to copy that pop that just above our my animator set. 57 00:03:14,230 --> 00:03:19,700 Ball so we now have a ball within the run method that knows if we're moving and instead of my animated 58 00:03:19,870 --> 00:03:24,760 set ball is running true instead of true in here we want this to be true if you're running false if 59 00:03:24,760 --> 00:03:30,490 not so we can just use the same ball player has horizontal speed because this will resolve as true if 60 00:03:30,490 --> 00:03:32,050 you're moving and false if you're not moving. 61 00:03:32,050 --> 00:03:34,330 So save on that back into unity. 62 00:03:34,360 --> 00:03:38,800 Click on play so you can see on the screen the character is running pretty little, skipping along when 63 00:03:38,800 --> 00:03:39,220 we're running. 64 00:03:39,220 --> 00:03:43,000 And also you can see the states are flipping backwards and forwards when we're running and not running 65 00:03:43,000 --> 00:03:46,060 and our character Sprite is still flipping in the right kind of way. 66 00:03:46,060 --> 00:03:46,840 So everything's good. 67 00:03:46,840 --> 00:03:51,490 This is just the first state running we'll have climbing and probably a dire state and a couple of other 68 00:03:51,490 --> 00:03:52,090 things later on. 69 00:03:52,090 --> 00:03:57,420 But I just wanted to show you the fundamental mechanism of changing our animation state in our code. 70 00:03:57,430 --> 00:03:57,970 Good stuff. 71 00:03:57,970 --> 00:03:59,020 I'll see in the next lecture.