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These are the user uploaded subtitles that are being translated: 1 1 00:00:00,000 --> 00:00:04,207 [MUSIC] 2 2 00:00:04,207 --> 00:00:08,093 In this video we're going to hook it up so that when all the blocks are destroyed, 3 3 00:00:08,093 --> 00:00:09,245 we load our next scene. 4 4 00:00:09,245 --> 00:00:12,005 Super exciting, so let's get started. 5 5 00:00:12,005 --> 00:00:15,990 One thing I didn't talk about fully in the previous video that I'll touch on now is 6 6 00:00:15,990 --> 00:00:20,177 each of these blocks, you've got one, two, three, all the way down to ten blocks. 7 7 00:00:20,177 --> 00:00:23,932 Each of these blocks contains the script block. 8 8 00:00:23,932 --> 00:00:28,914 And on that script block we have, we're saying, we're calling the method, 9 9 00:00:28,914 --> 00:00:34,288 CountBreakableBlock which basically just increments the number of blocks by one. 10 10 00:00:34,288 --> 00:00:38,123 And the reason that adds up the total number of blocks is when we start 11 11 00:00:38,123 --> 00:00:42,365 the game, every single one of these instances, these are instances of our 12 12 00:00:42,365 --> 00:00:46,365 prefab, every instance says, do the thing that is on my script. 13 13 00:00:46,365 --> 00:00:47,785 So count me as a block. 14 14 00:00:47,785 --> 00:00:49,718 And then this one says, add another block. 15 15 00:00:49,718 --> 00:00:53,532 And this one says, add another block, add another block. 16 16 00:00:53,532 --> 00:00:55,566 So each of these are saying add another block. 17 17 00:00:55,566 --> 00:00:57,732 And so they're doing that ten times. 18 18 00:00:57,732 --> 00:01:00,449 That's why it's adding up in our level. 19 19 00:01:00,449 --> 00:01:02,532 It's adding up all the breakable blocks. 20 20 00:01:02,532 --> 00:01:06,379 Each of them have said count me, and that adds up to ten. 21 21 00:01:06,379 --> 00:01:09,767 Okay, so just wanted to be super clear with what's going on there. 22 22 00:01:09,767 --> 00:01:12,556 Now we're gonna jump into level.cs. 23 23 00:01:12,556 --> 00:01:16,099 Again, we need to create ourselves our next public method. 24 24 00:01:16,099 --> 00:01:19,732 Cuz if we look at our flow we can see that we have gone through, 25 25 00:01:19,732 --> 00:01:24,298 we've created a level object, we're keeping track of breakable blocks, 26 26 00:01:24,298 --> 00:01:26,103 we're adding up the blocks. 27 27 00:01:26,103 --> 00:01:28,989 Now we need a method to signal that a block was broken, 28 28 00:01:28,989 --> 00:01:32,388 an if statement to load the next level if the blocks is zero, and 29 29 00:01:32,388 --> 00:01:36,072 then also to tell each block to remove itself when it's destroyed. 30 30 00:01:36,072 --> 00:01:39,581 Remove itself from the total number of breakable blocks, and 31 31 00:01:39,581 --> 00:01:41,884 that's what we're up to at the moment. 32 32 00:01:41,884 --> 00:01:45,904 The first thing we'll do is create a public method, public void, and 33 33 00:01:45,904 --> 00:01:48,163 we'll call this one block destroyed. 34 34 00:01:48,163 --> 00:01:49,945 Block destroyed. 35 35 00:01:49,945 --> 00:01:54,086 I have an enclosed parenthesis, I have enclosed curly braces brackets, 36 36 00:01:54,086 --> 00:01:56,087 and then within here we want to say, 37 37 00:01:56,087 --> 00:02:00,396 well I'm gonna basically say the opposite to what's happening up in here. 38 38 00:02:00,396 --> 00:02:05,836 When a block is destroyed we want it to say hey, decrease the number 39 39 00:02:05,836 --> 00:02:12,653 of breakable blocks by saying breakable blocks minus minus, and then semicolon. 40 40 00:02:12,653 --> 00:02:13,872 Now what else do we need to do? 41 41 00:02:13,872 --> 00:02:18,554 Well, within here as well, at the same time that a block is destroyed, 42 42 00:02:18,554 --> 00:02:23,096 we want to say right now hey, have the number of blocks reached zero? 43 43 00:02:23,096 --> 00:02:27,969 So put in an if statement, if, and then our parenthesis we 44 44 00:02:27,969 --> 00:02:32,346 wanna say if the (breakableBlocks) is less than or 45 45 00:02:32,346 --> 00:02:36,435 equal to 0, then what do we want to have happen? 46 46 00:02:36,435 --> 00:02:41,090 Well, what we wanna have happen is to load the next level. 47 47 00:02:41,090 --> 00:02:46,254 So we know from our ScreenLoader, so we have a ScreenLoader class. 48 48 00:02:46,254 --> 00:02:50,752 We've already created a load next level method, so we wanna call that. 49 49 00:02:50,752 --> 00:02:54,651 If you remember, I'll find object of thought. 50 50 00:02:54,651 --> 00:02:57,599 And once again, I will cache this as a reference just so 51 51 00:02:57,599 --> 00:03:01,075 that we don't have to find the object of type every single time. 52 52 00:03:01,075 --> 00:03:05,415 And so to do that we will say SceneLoader, 53 53 00:03:05,415 --> 00:03:10,754 capital S, SceneLoader, and then sceneloader. 54 54 00:03:10,754 --> 00:03:13,526 So this is just a way of saying we now have a variable, 55 55 00:03:13,526 --> 00:03:16,308 sceneloader variable that have type SceneLoader. 56 56 00:03:16,308 --> 00:03:20,734 And again I'll just make a note in here, cached reference, so 57 57 00:03:20,734 --> 00:03:24,491 that we know this is our cache not the thought we have, 58 58 00:03:24,491 --> 00:03:28,849 our parameters, parameters, that we need to keep track of. 59 59 00:03:28,849 --> 00:03:32,427 Just helping you guys see that this is the structure we have at the top of our 60 60 00:03:32,427 --> 00:03:36,085 script, so you can get into the habit of putting things in the right place. 61 61 00:03:36,085 --> 00:03:38,953 You don't have to write in your comments each time, 62 62 00:03:38,953 --> 00:03:42,613 I'm just doing that to make it clear from a teaching point of view. 63 63 00:03:42,613 --> 00:03:47,045 Okay, so we have our scene loader, now if breakableBlocks is less than, 64 64 00:03:47,045 --> 00:03:48,912 sorry in our start method now. 65 65 00:03:48,912 --> 00:03:50,014 I've jumped a step ahead. 66 66 00:03:50,014 --> 00:03:51,004 What do we need to do next? 67 67 00:03:51,004 --> 00:03:51,773 This is a question for you. 68 68 00:03:51,773 --> 00:03:53,345 Many challenge for you. 69 69 00:03:53,345 --> 00:03:56,779 How do we get access to our sceneloader? 70 70 00:03:56,779 --> 00:03:59,469 How do we cache that? 71 71 00:03:59,469 --> 00:04:01,945 Well, we say Start. 72 72 00:04:01,945 --> 00:04:08,479 Hit Tab to autocomplete, and then we will say sceneloader = what? 73 73 00:04:08,479 --> 00:04:12,520 Another mini challenge for you, complete that sentence. 74 74 00:04:12,520 --> 00:04:16,538 sceneloader = FindObjectOfType. 75 75 00:04:16,538 --> 00:04:21,258 Angle brackets, and within here we're finding capital s breaks Sceneloader. 76 76 00:04:21,258 --> 00:04:23,924 Open and close parenthesis, semicolon. 77 77 00:04:23,924 --> 00:04:28,422 So now we know that SceneLoader is a cash reference to the class or 78 78 00:04:28,422 --> 00:04:30,854 the objective type SceneLoader. 79 79 00:04:30,854 --> 00:04:36,397 Now in our if statement down here, we can say, cuz we need to access sceneloader. 80 80 00:04:36,397 --> 00:04:37,414 What are we accessing in there? 81 81 00:04:37,414 --> 00:04:39,460 We're accessing load next scene. 82 82 00:04:39,460 --> 00:04:42,330 So, here's another mini challenge for you. 83 83 00:04:42,330 --> 00:04:45,162 Let's load the next level. 84 84 00:04:45,162 --> 00:04:47,284 Okay, you're just waiting for me to continue, 85 85 00:04:47,284 --> 00:04:49,373 are you actually doing these mini challenges? 86 86 00:04:49,373 --> 00:04:52,846 It's okay if you're not but this is how you really get better at these things. 87 87 00:04:52,846 --> 00:04:56,183 If you push yourself and pause and try to figure it out on your own. 88 88 00:04:56,183 --> 00:04:58,386 That's how this really embeds. 89 89 00:04:58,386 --> 00:05:00,652 It's cool if you're not, but it's even better if you are. 90 90 00:05:00,652 --> 00:05:07,858 So we'll say in here sceneloader.LoadNextScene. 91 91 00:05:07,858 --> 00:05:10,065 Open and closed brackets and semi-colon. 92 92 00:05:10,065 --> 00:05:14,583 So now we've created our, when a block is destroyed, we want to yell hey, 93 93 00:05:14,583 --> 00:05:15,890 block is destroyed. 94 94 00:05:15,890 --> 00:05:19,501 We decrease the number of blocks by one that are breakable, and 95 95 00:05:19,501 --> 00:05:22,852 then we say if it's reached 0, then load the next scene. 96 96 00:05:22,852 --> 00:05:25,360 I'm gonna save that hop over into block, and 97 97 00:05:25,360 --> 00:05:28,676 this is where I'll give you your proper full on challenge. 98 98 00:05:28,676 --> 00:05:30,095 That was our last level. 99 99 00:05:30,095 --> 00:05:32,042 It's our last lecturer. 100 100 00:05:32,042 --> 00:05:32,745 That's what I'm after. 101 101 00:05:32,745 --> 00:05:34,086 Update Block.cs. 102 102 00:05:34,086 --> 00:05:35,204 So here is the challenge. 103 103 00:05:35,204 --> 00:05:40,504 Call our method for decreasing the number of blocks when a block is destroyed. 104 104 00:05:40,504 --> 00:05:44,693 Update Block.cs, and ensure that you have your build settings correct. 105 105 00:05:44,693 --> 00:05:46,736 We haven't done that yet for this scene. 106 106 00:05:46,736 --> 00:05:48,610 You might have done it but I haven't done it yet. 107 107 00:05:48,610 --> 00:05:50,956 And to test and rejoice that it works. 108 108 00:05:50,956 --> 00:05:52,336 And another little hint for 109 109 00:05:52,336 --> 00:05:56,416 you, you might wanna decrease the number of blocks in your scene to one just so you 110 110 00:05:56,416 --> 00:06:00,565 don't have to get rid of all of the blocks you can text it a little bit more quickly. 111 111 00:06:00,565 --> 00:06:04,047 Okay, so as your challenge jump in and get started. 112 112 00:06:04,047 --> 00:06:07,702 Okay, so within Block.cs, we need to find our OnCollisionEnter, 113 113 00:06:07,702 --> 00:06:10,103 this is where things are getting destroyed. 114 114 00:06:10,103 --> 00:06:13,902 Underneath Destroy, we want to give an update in here that says, 115 115 00:06:13,902 --> 00:06:17,234 well not an update, but we wanna call our method in here. 116 116 00:06:17,234 --> 00:06:21,327 I'm thinking that it's updating the situation but it's not the update method. 117 117 00:06:21,327 --> 00:06:26,990 We're saying level, we've already created ourselves a cash reference to the level. 118 118 00:06:26,990 --> 00:06:30,892 So level., and what do we have in here? 119 119 00:06:30,892 --> 00:06:37,029 It's gonna be BlockDestroyed );. 120 120 00:06:37,029 --> 00:06:42,311 So we're saying access the level class that we're doing and lock is destroyed. 121 121 00:06:42,311 --> 00:06:43,581 Pretty straightforward. 122 122 00:06:43,581 --> 00:06:46,716 Now I'm gonna do one more step while I'm in here which is just to factor this out 123 123 00:06:46,716 --> 00:06:47,344 to clean it up. 124 124 00:06:47,344 --> 00:06:49,006 This is a refactor, it's not critical. 125 125 00:06:49,006 --> 00:06:51,965 Things will still work without it, but this is just for readability. 126 126 00:06:51,965 --> 00:06:55,143 Not to do too many things under this OnCollisionEnter. 127 127 00:06:55,143 --> 00:06:58,561 So I'm gonna highlight my three lines here, right-click. 128 128 00:06:58,561 --> 00:07:00,085 Slightly different on the Mac, you'll see. 129 129 00:07:00,085 --> 00:07:02,525 Quick Fix and then Extract Method. 130 130 00:07:02,525 --> 00:07:07,893 On a PC, Quick Actions and Refactorings, and then Extract Method. 131 131 00:07:07,893 --> 00:07:14,740 We'll call this method DestroyBlock, and then hit Enter. 132 132 00:07:14,740 --> 00:07:23,132 So basically, Whenever we collide with the block, then we want to destroy the block. 133 133 00:07:23,132 --> 00:07:26,295 Okay, I'll call DestroyBlock or, yeah, that's good for now. 134 134 00:07:26,295 --> 00:07:29,389 It'll change a little bit later on, but for now, this is what we've got, so 135 135 00:07:29,389 --> 00:07:30,729 this is the best thing to call it. 136 136 00:07:30,729 --> 00:07:33,227 Save that, jump over into our game. 137 137 00:07:33,227 --> 00:07:36,614 Now, I mentioned about Build Settings, Edit. 138 138 00:07:36,614 --> 00:07:40,678 Sorry, File > Build Settings. 139 139 00:07:40,678 --> 00:07:44,388 And one thing you'll notice with our Build Settings is that we don't have any level 140 140 00:07:44,388 --> 00:07:45,289 two sitting there. 141 141 00:07:45,289 --> 00:07:49,166 So I'll just click Add Open Scenes, cuz level two is open at the moment. 142 142 00:07:49,166 --> 00:07:53,542 Now I'm gonna cheat a little bit and drag this above level one so that when we win 143 143 00:07:53,542 --> 00:07:58,076 level two it'll take us to level one, just to make it easy for testing purposes. 144 144 00:07:58,076 --> 00:08:02,667 And as I mentioned before I'm gonna select all of my blocks except for one. 145 145 00:08:02,667 --> 00:08:07,014 Delete those, click Play, we should see if I click on level, 146 146 00:08:07,014 --> 00:08:11,698 we should see that there are one breakable blocks, yes there are, 147 147 00:08:11,698 --> 00:08:16,490 click back in my game window, [SOUND] and then plonk, and Game Over. 148 148 00:08:16,490 --> 00:08:19,227 Didn't work, okay, what have we not done in here? 149 149 00:08:19,227 --> 00:08:25,386 We're looking for in our level, we didn't go through this quite in enough detail. 150 150 00:08:25,386 --> 00:08:30,120 We have SceneLoader, I've forgotten that we don't have SceneLoader in our scene at 151 151 00:08:30,120 --> 00:08:31,247 the moment, do we? 152 152 00:08:31,247 --> 00:08:35,801 That was an assumption that I made was incorrect, so on level I'm going to drag 153 153 00:08:35,801 --> 00:08:39,674 in SceneLoader, so drag SceneLoader as a component on level now. 154 154 00:08:39,674 --> 00:08:44,143 When we're saying fine object of type, here it is right here sceneloaded.cs 155 155 00:08:44,143 --> 00:08:47,257 is another way of saying it's the SceneLoader class, 156 156 00:08:47,257 --> 00:08:51,203 and it's in our scene because we have it sitting right here on level. 157 157 00:08:51,203 --> 00:08:55,153 Make sure on level we can click Apply, so it applies all these back to the prefab, 158 158 00:08:55,153 --> 00:08:58,600 so when we drop in level and future levels, it knows what's going on. 159 159 00:08:58,600 --> 00:09:01,643 So just a reminder, why I was doing that is we're looking for 160 160 00:09:01,643 --> 00:09:03,556 FindObjectOfType SceneLoader, but 161 161 00:09:03,556 --> 00:09:07,573 we didn't actually have any SceneLoaders in our scene just yet, and now we do. 162 162 00:09:07,573 --> 00:09:12,399 So save everything up, click on Play, look to see if there's any errors. 163 163 00:09:12,399 --> 00:09:14,808 I don't know how long that errors been there but it's now gone. 164 164 00:09:14,808 --> 00:09:16,856 So there is no error, fantastic. 165 165 00:09:16,856 --> 00:09:20,557 And we click and it should, plonk, load into the other scene. 166 166 00:09:20,557 --> 00:09:23,367 That's great, very excited to see that. 167 167 00:09:23,367 --> 00:09:27,071 So excellent work, we now have a fully functioning game. 168 168 00:09:27,071 --> 00:09:29,545 You can add a couple of these blocks back if you want. 169 169 00:09:29,545 --> 00:09:32,162 I'm just gonna add one more, so we've got two sets. 170 170 00:09:32,162 --> 00:09:33,964 It looks a little bit more like a game. 171 171 00:09:33,964 --> 00:09:37,468 And so when we complete this scene, it will load the next scene. 172 172 00:09:37,468 --> 00:09:39,898 That area has reappeared down the bottom of the screen but 173 173 00:09:39,898 --> 00:09:41,578 that should go away when we click Play. 174 174 00:09:41,578 --> 00:09:45,858 We can now play fully through a full game loop where the player can start, 175 175 00:09:45,858 --> 00:09:47,974 win, lose, and restart the game. 176 176 00:09:47,974 --> 00:09:50,350 So great work, and I'll see you in the next lecture. 17873