WEBVTT 00:00.000 --> 00:00.420 Hello guys. 00:00.420 --> 00:01.320 Welcome to the video. 00:01.320 --> 00:04.800 So in this one I'm going to explain how the saving system is going to work. 00:04.800 --> 00:09.720 And because this course is mostly for beginners and game is very simple itself, we don't really need 00:09.720 --> 00:10.740 a big saving system. 00:10.740 --> 00:12.930 So we can just use a Playerprefs. 00:12.930 --> 00:13.830 Now let me explain. 00:13.830 --> 00:14.790 How do they work? 00:14.790 --> 00:15.480 What is it? 00:15.480 --> 00:17.370 I'm going to make an empty object. 00:18.290 --> 00:19.910 And I'm going to make a script. 00:20.240 --> 00:23.360 Uh, player refs example. 00:25.310 --> 00:27.380 All right, let me open the script. 00:28.630 --> 00:36.370 Over here I'm going to make a public int, let's say uh fruits. 00:36.550 --> 00:40.480 I'm going to do public uh, float seconds. 00:40.480 --> 00:44.410 And I'm going to do public string level, um, name. 00:44.410 --> 00:50.680 Now these three data types that can be saved with help of Playerprefs to save value, let's do public 00:50.680 --> 00:54.220 void save um value. 00:54.250 --> 00:54.760 All right. 00:54.760 --> 01:00.130 And I'm going to use context menu so I can click it in the play mode save value. 01:00.130 --> 01:04.210 So if you want to save the value you can type Playerprefs set. 01:04.210 --> 01:08.800 And here you can choose what you want to save float integer or string. 01:08.800 --> 01:14.230 For example I want to save the integer of fruits collected. 01:14.650 --> 01:17.710 I need to give it a name so it's easier to find later on. 01:17.710 --> 01:20.920 And I can just type fruits collected. 01:20.920 --> 01:25.600 And then after a comma, we're going to need to give it a value so it can save it with the name of fruits 01:25.600 --> 01:26.170 collected. 01:26.170 --> 01:28.360 Let's say I want to save five. 01:28.960 --> 01:34.060 Then let's make a method public void load value. 01:35.090 --> 01:39.380 And is going to be context menu load value. 01:39.380 --> 01:42.080 And over here I'm going to do Playerprefs dot. 01:42.080 --> 01:48.530 And here we need to type get int because now we getting the value you need to give it a same name. 01:48.830 --> 01:50.060 So it will work. 01:50.060 --> 01:51.830 And that's just it for now. 01:51.830 --> 01:53.480 So this is how you get in the value. 01:53.480 --> 01:58.310 And we can not only get the value but we can say that fruits are equals to the value we've got. 01:58.310 --> 01:59.090 All right. 01:59.510 --> 02:00.500 This will save it. 02:00.500 --> 02:01.850 This will load it. 02:01.850 --> 02:04.130 Let's go to unity. 02:05.350 --> 02:06.760 To the play mode. 02:07.880 --> 02:10.400 And we can see I have zero fruits here. 02:10.430 --> 02:13.340 Now I'm going to click save value. 02:13.370 --> 02:15.050 I saved the value. 02:15.050 --> 02:15.770 Nothing happened. 02:15.800 --> 02:16.700 I just saved it. 02:16.730 --> 02:18.230 Now let's go back. 02:18.530 --> 02:19.910 Let's go to play mode. 02:19.940 --> 02:21.980 Now this is a new instance of a game. 02:21.980 --> 02:31.040 But here I can click load value and I'll have fruits five and go further instead of setting five. 02:31.040 --> 02:33.530 Here you can use the variable fruits. 02:34.620 --> 02:36.030 Uh, let's try again. 02:36.060 --> 02:37.530 I'm going to give it 15. 02:37.530 --> 02:38.880 Let's go to play mode. 02:39.740 --> 02:44.150 Now I have 15 I can load value is going to become five. 02:44.150 --> 02:47.180 I can set it to something new, let's say 35. 02:47.180 --> 02:48.560 I can save it. 02:48.560 --> 02:52.100 And then when I go out of a play mode, this will be reset it. 02:52.100 --> 02:53.870 Then I can go to play mode again. 02:55.760 --> 02:57.860 And I can load the value. 02:57.920 --> 02:58.580 All right. 02:58.580 --> 03:04.220 So now we know that there is also a way to set default value into playerprefs. 03:04.220 --> 03:06.800 For example let's try to work with seconds. 03:06.800 --> 03:13.130 For example, we want to save how many seconds it took the player to finish the level we could do Playerprefs 03:13.130 --> 03:17.000 set float of let's do level one. 03:18.250 --> 03:19.000 Time. 03:19.670 --> 03:23.120 And we're going to give it a value of, uh, time. 03:23.120 --> 03:25.700 The time we have so time in the game. 03:26.290 --> 03:28.060 Then when we get in the value. 03:28.960 --> 03:32.950 We're going to do seconds equals to playerprefs. 03:32.980 --> 03:37.630 Get float of level one time name should be the same. 03:37.630 --> 03:42.580 And over here when you load in the value, it may happen that you did not save any information before. 03:42.580 --> 03:45.220 And in that case you can set default value. 03:45.220 --> 03:49.300 So in case we cannot find the value that we saved before, we're going to load default value. 03:49.300 --> 03:51.850 For example let's try 999 here. 03:51.850 --> 03:56.050 This will be the biggest time that can be on the best time on the level. 03:57.280 --> 03:58.810 Let's go back to unity. 04:01.500 --> 04:03.120 Now I go to play mode. 04:04.040 --> 04:06.200 And seconds is zero. 04:06.230 --> 04:11.960 I'm going to load value and it's 9.99 because I've loaded the default value. 04:11.990 --> 04:14.660 Now let me try to save the value. 04:14.930 --> 04:16.010 And it will save time. 04:16.010 --> 04:16.940 The time. 04:17.240 --> 04:19.280 And now when we go to play mode again. 04:20.440 --> 04:23.890 We can load value and it will be 7.8. 04:23.890 --> 04:28.660 So that's the time I saved when I called this method. 04:28.660 --> 04:29.710 Very simple one. 04:29.710 --> 04:33.790 Now we're not going to practice for the string variable because it basically works the same. 04:33.790 --> 04:35.470 You set the value and you get the value. 04:35.470 --> 04:39.160 You just need to type set, string or get. 04:40.120 --> 04:40.960 Uh, stream. 04:43.210 --> 04:45.010 Now I want to show you a simple trick. 04:45.010 --> 04:50.500 I want to show you how we can save other values with the help of float, int, and string. 04:50.500 --> 04:57.280 So for example, we want to save information about level if it's unlocked or not we can simply. 04:57.960 --> 04:58.980 Make. 04:59.190 --> 05:03.930 Uh playerprefs set int of uh, let's say. 05:04.610 --> 05:06.140 Level one. 05:06.830 --> 05:11.360 Unlocked and if level is unlocked, we can simply save it as one. 05:12.100 --> 05:15.220 If it's not unlocked, we can simply save it as zero. 05:15.670 --> 05:23.410 And then we're going to do here Playerprefs get end of level one unlocked. 05:23.590 --> 05:29.290 Default value will be zero, so if we did not save anything before it is zero. 05:29.290 --> 05:30.550 It means it is false. 05:30.550 --> 05:32.050 It is not unlocked. 05:32.820 --> 05:38.370 Then I'm going to do something like bull level unlocked equals to playerprefs. 05:38.400 --> 05:42.660 Actually, we can just get it here and do display. 05:42.660 --> 05:44.400 A pref is equals to one. 05:44.820 --> 05:50.280 And then if level unlocked then debug log level is unlocked. 05:51.590 --> 05:52.220 All right. 05:52.220 --> 05:53.180 Simple as that. 05:53.210 --> 05:55.130 Now let's go ahead and try this. 05:59.770 --> 06:01.330 I'm going to go to play mode. 06:03.800 --> 06:09.920 Gonna try to load value and we don't see any message because level was not unlocked. 06:09.950 --> 06:13.610 Now I'm going to save value and then I'm going to load value again. 06:13.610 --> 06:20.180 And we can see level is unlocked because we saved one into integer level one unlocked. 06:20.180 --> 06:23.450 So this is how we're going to save progress with levels in the next video. 06:23.450 --> 06:26.840 As of now I just wanted you to see simple examples on Playerprefs. 06:26.840 --> 06:30.770 Now let's go to the next one and we're just going to kick the hell out of this playerprefs system. 06:30.770 --> 06:32.030 Okay, I'll see you there.