00:00:00,030 --> 00:00:05,790 thanks for tuning in at brakus hello 00:00:04,350 --> 00:00:07,470 everyone and welcome to the first video 00:00:05,790 --> 00:00:09,809 on creating a tower defense game in 00:00:07,470 --> 00:00:12,150 unity I'm really really excited about 00:00:09,809 --> 00:00:14,130 this video both because tower defense 00:00:12,150 --> 00:00:15,660 games are awesome to make it's really 00:00:14,130 --> 00:00:18,480 fun and I have a lot of stuff that I 00:00:15,660 --> 00:00:20,340 want to show you but also because this 00:00:18,480 --> 00:00:22,500 is the very first video I'm doing since 00:00:20,340 --> 00:00:25,050 going full time with break YZ I'm taking 00:00:22,500 --> 00:00:26,849 my chances and investing all of my time 00:00:25,050 --> 00:00:29,550 into the channel that means that you 00:00:26,849 --> 00:00:32,189 will see more new content such as this 00:00:29,550 --> 00:00:33,750 and more content on this series we 00:00:32,189 --> 00:00:36,450 already have growing such as the 00:00:33,750 --> 00:00:38,190 multiplayer FPS and the 2d platformer 00:00:36,450 --> 00:00:40,620 course so that's really really exciting 00:00:38,190 --> 00:00:42,660 and to make all of this possible I've 00:00:40,620 --> 00:00:45,450 started a patreon page because let's 00:00:42,660 --> 00:00:48,840 face it I do have to pay rent where you 00:00:45,450 --> 00:00:50,850 can donate monthly ah to support me on 00:00:48,840 --> 00:00:54,390 my mission and that's really exciting 00:00:50,850 --> 00:00:56,489 the page itself looks like this you can 00:00:54,390 --> 00:00:59,430 click the screen now to be taking over 00:00:56,489 --> 00:01:02,460 here I offer some humble rewards in 00:00:59,430 --> 00:01:06,299 return and the first 25 or the first 5 00:01:02,460 --> 00:01:08,159 people to donate $25 or more will get 00:01:06,299 --> 00:01:11,430 whatever project they're working on 00:01:08,159 --> 00:01:14,130 featured on Twitter Facebook and on the 00:01:11,430 --> 00:01:16,860 forum so if you're excited about this 00:01:14,130 --> 00:01:18,630 just as I am you should go here and at 00:01:16,860 --> 00:01:21,810 least check it out if it's something for 00:01:18,630 --> 00:01:24,509 you I I really appreciate it you are no 00:01:21,810 --> 00:01:26,100 way forced to do this but it's awesome 00:01:24,509 --> 00:01:28,530 and thanks to the people who have 00:01:26,100 --> 00:01:30,869 already donated so without further ado 00:01:28,530 --> 00:01:32,520 let's get right into today's video so 00:01:30,869 --> 00:01:35,610 I've opened up unity and I'm using 00:01:32,520 --> 00:01:37,590 version 5,3 point 5 but you can pretty 00:01:35,610 --> 00:01:40,020 much use any version that you want to 00:01:37,590 --> 00:01:41,880 it's not going to matter too much for 00:01:40,020 --> 00:01:43,530 what we are going to be doing so to 00:01:41,880 --> 00:01:45,329 create a new project we are going to hit 00:01:43,530 --> 00:01:47,159 new then we are going to type in the 00:01:45,329 --> 00:01:50,040 name of our project that's in my case 00:01:47,159 --> 00:01:52,680 going to be tower defense tutorial you 00:01:50,040 --> 00:01:55,350 can select the location and choose 3d 00:01:52,680 --> 00:01:57,329 and the reason why is I recently sent 00:01:55,350 --> 00:01:58,860 out a poll on Facebook and Twitter 00:01:57,329 --> 00:02:02,130 asking whether or not the search should 00:01:58,860 --> 00:02:03,899 be in 3d or 2d along with the question 00:02:02,130 --> 00:02:06,990 of what programming language we should 00:02:03,899 --> 00:02:09,300 be using and the result of the poll is 00:02:06,990 --> 00:02:12,090 on the screen now and that was of course 00:02:09,300 --> 00:02:13,150 3d and c-sharp so that's what we're 00:02:12,090 --> 00:02:16,000 going to be doing 00:02:13,150 --> 00:02:18,340 and then hit create project which I've 00:02:16,000 --> 00:02:21,099 already done and opened it up in unity 00:02:18,340 --> 00:02:22,450 and then it should look like this so the 00:02:21,099 --> 00:02:24,489 first thing that I want to do here is 00:02:22,450 --> 00:02:27,640 populate our scene with some of the 00:02:24,489 --> 00:02:29,890 stuff that we are going to need in there 00:02:27,640 --> 00:02:31,390 and these some of these graphics might 00:02:29,890 --> 00:02:33,909 be temporary 00:02:31,390 --> 00:02:37,420 but it's great to get something in there 00:02:33,909 --> 00:02:39,430 that we can use and the basics of any 00:02:37,420 --> 00:02:41,799 tower defense game is some kind of start 00:02:39,430 --> 00:02:44,530 and end point for your enemies to walk 00:02:41,799 --> 00:02:47,769 from one to another and then a path that 00:02:44,530 --> 00:02:49,329 they take in getting there and also we 00:02:47,769 --> 00:02:52,599 need some place where we can place 00:02:49,329 --> 00:02:55,810 turrets in our case any turret is going 00:02:52,599 --> 00:02:58,209 to be placed on a platform that we call 00:02:55,810 --> 00:02:59,709 a node so let's go ahead and make a node 00:02:58,209 --> 00:03:02,980 right now so right-click in the 00:02:59,709 --> 00:03:05,519 hierarchy go to 3d object select cube 00:03:02,980 --> 00:03:11,139 then we're going to reset the transform 00:03:05,519 --> 00:03:15,159 do a scale of 4 by 1 5 4 and then hit F 00:03:11,139 --> 00:03:16,750 to assume a nod so you can see here that 00:03:15,159 --> 00:03:18,760 we are going to keep the box Collider 00:03:16,750 --> 00:03:21,819 and the mesh renderer that's all very 00:03:18,760 --> 00:03:25,000 fine and what we can then do is rename 00:03:21,819 --> 00:03:27,190 this one to node and drag it down to in 00:03:25,000 --> 00:03:30,099 the to the project to make it into a 00:03:27,190 --> 00:03:32,260 prefab then we can create an empty game 00:03:30,099 --> 00:03:35,260 object which we will also reach set the 00:03:32,260 --> 00:03:37,030 transform on and rename to notes and 00:03:35,260 --> 00:03:39,819 this is simply going to store all of our 00:03:37,030 --> 00:03:42,760 node and all of our node objects as 00:03:39,819 --> 00:03:45,220 children so that's perfect what we can 00:03:42,760 --> 00:03:48,699 do now is we can simply duplicate this 00:03:45,220 --> 00:03:50,470 node then we can move it over using ctrl 00:03:48,699 --> 00:03:53,440 and I'm going to leave a small space 00:03:50,470 --> 00:03:57,280 here and I just want a bunch of nodes 00:03:53,440 --> 00:03:59,590 here that will be a bunch of places that 00:03:57,280 --> 00:04:02,049 we can place turrets and also show the 00:03:59,590 --> 00:04:04,389 confines of our map so let's go ahead 00:04:02,049 --> 00:04:06,669 and make a grid of some of these nodes 00:04:04,389 --> 00:04:11,260 and of course if you make your map too 00:04:06,669 --> 00:04:14,349 big it's going to be very slow this 00:04:11,260 --> 00:04:17,260 method of doing it that optimizations 00:04:14,349 --> 00:04:20,289 that you can make but as long as you 00:04:17,260 --> 00:04:21,729 give your map a reasonable size it's 00:04:20,289 --> 00:04:24,159 really not going to be an issue 00:04:21,729 --> 00:04:26,260 especially because unity has gotten so 00:04:24,159 --> 00:04:29,890 good at handling a lot of 00:04:26,260 --> 00:04:32,170 objects of the same type so let's select 00:04:29,890 --> 00:04:34,060 these two by holding down shift hit 00:04:32,170 --> 00:04:36,490 control D to duplicate and holding down 00:04:34,060 --> 00:04:39,160 control again to move them over and keep 00:04:36,490 --> 00:04:42,400 doing this in shifting direction so that 00:04:39,160 --> 00:04:45,130 we end up with a complete square and we 00:04:42,400 --> 00:04:48,400 I will just keep doing this just a few 00:04:45,130 --> 00:04:54,240 more times to get a map of a reasonable 00:04:48,400 --> 00:04:58,180 size and we can do this just once more 00:04:54,240 --> 00:05:00,040 here in this direction and one time in 00:04:58,180 --> 00:05:02,080 the other direction of course this if 00:05:00,040 --> 00:05:04,750 this is going to be a mobile game you'll 00:05:02,080 --> 00:05:06,970 have to think more about performance but 00:05:04,750 --> 00:05:09,430 this here is going to be fine for any 00:05:06,970 --> 00:05:12,160 reasonable desktop it's going to be just 00:05:09,430 --> 00:05:13,690 fine so all of our notes are now in here 00:05:12,160 --> 00:05:16,300 and the good thing is that we made it 00:05:13,690 --> 00:05:19,000 into a prefab so if we change one all of 00:05:16,300 --> 00:05:21,400 them will change so what we can do now 00:05:19,000 --> 00:05:23,890 is simply collapse this nodes here and 00:05:21,400 --> 00:05:25,960 then we will save our scene just to be 00:05:23,890 --> 00:05:30,370 on the safe side and I'm going to call 00:05:25,960 --> 00:05:33,070 this the main scene and what we can do 00:05:30,370 --> 00:05:36,790 is now specify a path for enemies to 00:05:33,070 --> 00:05:38,320 walk along so I want our enemies to 00:05:36,790 --> 00:05:41,020 start up here so I'm going to select 00:05:38,320 --> 00:05:43,870 this node and delete it and end down 00:05:41,020 --> 00:05:46,210 here select that node and delete it and 00:05:43,870 --> 00:05:50,890 we will not do the same with any notes 00:05:46,210 --> 00:05:53,890 that these enemies should walk over and 00:05:50,890 --> 00:05:56,560 then delete them and then instead create 00:05:53,890 --> 00:05:58,840 some kind of ground object that they 00:05:56,560 --> 00:06:01,180 will move along so let's go ahead and 00:05:58,840 --> 00:06:03,760 make a path by simply selecting objects 00:06:01,180 --> 00:06:05,500 here I want them to and again I'm 00:06:03,760 --> 00:06:11,050 holding down shift to do this I warn 00:06:05,500 --> 00:06:13,510 them - oops that was a wrong one are the 00:06:11,050 --> 00:06:16,300 transform is getting in the way there so 00:06:13,510 --> 00:06:18,340 I want them to walk down there then over 00:06:16,300 --> 00:06:22,360 here and then up a bit then I want them 00:06:18,340 --> 00:06:25,390 to walk over and then take a path down 00:06:22,360 --> 00:06:30,040 again and this time I want them to go 00:06:25,390 --> 00:06:35,850 way down here over here and then around 00:06:30,040 --> 00:06:38,940 and we can make them go up a bit and 00:06:35,850 --> 00:06:42,180 over and I 00:06:38,940 --> 00:06:45,870 and over and then I want them to take 00:06:42,180 --> 00:06:49,350 the straight path down here to their 00:06:45,870 --> 00:06:51,540 final destination point so this is what 00:06:49,350 --> 00:06:53,970 my path is going to look like you can of 00:06:51,540 --> 00:06:58,290 course change yours to whatever you want 00:06:53,970 --> 00:07:00,000 and make different levels in this way so 00:06:58,290 --> 00:07:02,490 this is going to be the first level and 00:07:00,000 --> 00:07:05,040 what I'm going to do now is create some 00:07:02,490 --> 00:07:08,190 ground objects to fill out these empty 00:07:05,040 --> 00:07:10,680 spaces so let's right-click go to 3d 00:07:08,190 --> 00:07:14,310 objects select cube again reset the 00:07:10,680 --> 00:07:16,890 transform on this and name this a ground 00:07:14,310 --> 00:07:19,080 object then we can go ahead and maybe 00:07:16,890 --> 00:07:24,150 move this over again holding down ctrl 00:07:19,080 --> 00:07:27,300 make this a 4x4 by default you can watch 00:07:24,150 --> 00:07:29,400 it here zoom in on it by hitting F let's 00:07:27,300 --> 00:07:32,400 then create a new material for this so 00:07:29,400 --> 00:07:34,800 create material and call this one ground 00:07:32,400 --> 00:07:36,840 and we are going to drag it on there and 00:07:34,800 --> 00:07:40,080 then let's change the albedo to 00:07:36,840 --> 00:07:41,970 something a bit more dark grayish that 00:07:40,080 --> 00:07:44,430 we can bump up the metallic Ness just a 00:07:41,970 --> 00:07:47,040 bit and turn the smoothness all the way 00:07:44,430 --> 00:07:50,400 down to make it a very matte material so 00:07:47,040 --> 00:07:52,169 that looks kind of great and it's very 00:07:50,400 --> 00:07:54,600 clear that this node is different from 00:07:52,169 --> 00:07:56,669 the others so that's perfect and what we 00:07:54,600 --> 00:07:59,520 can then do is you can of course go with 00:07:56,669 --> 00:08:01,590 the same node design here but instead I 00:07:59,520 --> 00:08:04,230 simply want to scale up this node to 00:08:01,590 --> 00:08:05,760 fill out the entire path so in order to 00:08:04,230 --> 00:08:08,520 do this that's maybe move it over 00:08:05,760 --> 00:08:11,160 towards the center here of this small 00:08:08,520 --> 00:08:14,190 area of the path then we can instead of 00:08:11,160 --> 00:08:16,830 just scaling like this we can go in and 00:08:14,190 --> 00:08:20,940 choose edit snap settings and here we 00:08:16,830 --> 00:08:23,100 can adjust how our objects snap to the 00:08:20,940 --> 00:08:25,980 grid and in this case we want the scale 00:08:23,100 --> 00:08:29,280 to snap every one units so I'm going to 00:08:25,980 --> 00:08:31,860 scale it up here and it looks like 00:08:29,280 --> 00:08:34,229 everyone units actually wasn't perfect 00:08:31,860 --> 00:08:37,740 because now we're getting this offset 00:08:34,229 --> 00:08:40,440 which we don't want so let's choose 0,1 00:08:37,740 --> 00:08:43,890 again here and then we can find adjust 00:08:40,440 --> 00:08:46,770 this so let's do that's actually too 00:08:43,890 --> 00:08:48,780 much so we can do point zero one or you 00:08:46,770 --> 00:08:51,570 can simply type in the correct and 00:08:48,780 --> 00:08:52,680 upload up here which I'm going to do so 00:08:51,570 --> 00:08:57,270 let's try 00:08:52,680 --> 00:09:01,740 twenty-nine here oops 29 and then move 00:08:57,270 --> 00:09:03,480 this over with a tool and it's still 00:09:01,740 --> 00:09:05,520 offset because our movement is now 00:09:03,480 --> 00:09:07,470 offset so what we can simply do is set 00:09:05,520 --> 00:09:09,440 the position here and you can see this 00:09:07,470 --> 00:09:12,990 right here is the exposition to 00:09:09,440 --> 00:09:15,390 seventeen point five and that's perfect 00:09:12,990 --> 00:09:16,710 so now it's snapped correctly and that 00:09:15,390 --> 00:09:19,530 looks fine then we can go ahead and 00:09:16,710 --> 00:09:22,320 duplicate this object rotate it by 90 00:09:19,530 --> 00:09:24,000 degrees move it down here again by 00:09:22,320 --> 00:09:26,820 holding down control and you can see 00:09:24,000 --> 00:09:29,400 again that this is snapped incorrectly 00:09:26,820 --> 00:09:33,840 so maybe we should set these to 0,5 on 00:09:29,400 --> 00:09:36,630 the X and Z so we can move it down there 00:09:33,840 --> 00:09:40,770 and then we can scale it in and I want 00:09:36,630 --> 00:09:43,260 to do this every 0,1 units and move it 00:09:40,770 --> 00:09:47,220 over and you can just keep doing this to 00:09:43,260 --> 00:09:48,930 fill out the entire level something like 00:09:47,220 --> 00:09:53,220 that and then we can again duplicate 00:09:48,930 --> 00:09:54,810 this and rotate it back and I'm just 00:09:53,220 --> 00:09:57,480 going to do this to fill out the entire 00:09:54,810 --> 00:09:59,720 path and when I'm done I'm going to be 00:09:57,480 --> 00:09:59,720 back 00:10:04,649 --> 00:10:09,160 okay so I'm done creating our map and 00:10:06,940 --> 00:10:12,040 this looks just fine you could of course 00:10:09,160 --> 00:10:13,690 spend more time on this than I do but 00:10:12,040 --> 00:10:15,940 for the sake of the tutorial let's 00:10:13,690 --> 00:10:17,920 continue and let's right-click in the 00:10:15,940 --> 00:10:20,140 hierarchy to create another empty object 00:10:17,920 --> 00:10:23,589 and I'm just going to reset this and 00:10:20,140 --> 00:10:25,690 call this one environment and then we 00:10:23,589 --> 00:10:28,149 can take all of our ground objects and 00:10:25,690 --> 00:10:30,640 drag them into the environment and close 00:10:28,149 --> 00:10:33,370 that off just like that then let's 00:10:30,640 --> 00:10:35,620 create a object that will act as our 00:10:33,370 --> 00:10:37,810 starting point and one that will act as 00:10:35,620 --> 00:10:40,959 our ending point and again you know the 00:10:37,810 --> 00:10:43,300 procedure 3d object cube reset it call 00:10:40,959 --> 00:10:49,209 this one start and I'm going to do 00:10:43,300 --> 00:10:50,740 capital letters on this one and yeah so 00:10:49,209 --> 00:10:54,940 that's fine and let's go ahead and add a 00:10:50,740 --> 00:10:58,089 material for this so actually this start 00:10:54,940 --> 00:11:00,339 node here needs to be four by four on 00:10:58,089 --> 00:11:03,610 the X and Z as well and then I'm 00:11:00,339 --> 00:11:06,399 thinking four on the Y so what we can do 00:11:03,610 --> 00:11:11,740 with this is that we can actually move 00:11:06,399 --> 00:11:15,940 it up by two point five and then we can 00:11:11,740 --> 00:11:17,860 drag it over to stand on our ground here 00:11:15,940 --> 00:11:20,440 and I'm just going to drag it over so 00:11:17,860 --> 00:11:22,180 it's x correctly something like that and 00:11:20,440 --> 00:11:25,690 this is going to be the starting point 00:11:22,180 --> 00:11:27,910 so I think this looks just fine and what 00:11:25,690 --> 00:11:29,560 we can do with this is that we can then 00:11:27,910 --> 00:11:32,200 change the material so let's create a 00:11:29,560 --> 00:11:35,230 new material and this is going to be 00:11:32,200 --> 00:11:36,070 this start and I'm just going to drag 00:11:35,230 --> 00:11:39,040 that on there 00:11:36,070 --> 00:11:42,220 and then change the albedo to something 00:11:39,040 --> 00:11:46,029 um let's see let's change this to 00:11:42,220 --> 00:11:48,850 something green so some kind of matte 00:11:46,029 --> 00:11:50,709 green I think that color there looks 00:11:48,850 --> 00:11:53,470 just fine let's again bump down the 00:11:50,709 --> 00:11:55,630 smoothness quite a bit and maybe just a 00:11:53,470 --> 00:11:58,209 bit of metallic no no metal Ignace on 00:11:55,630 --> 00:12:01,630 this one and I don't want this to be on 00:11:58,209 --> 00:12:04,240 too saturated so something like that 00:12:01,630 --> 00:12:06,430 looks pretty nice I think and then we 00:12:04,240 --> 00:12:10,750 can simply duplicate this node and then 00:12:06,430 --> 00:12:13,900 drag it over here and make this one our 00:12:10,750 --> 00:12:16,510 end node so there we go and this is 00:12:13,900 --> 00:12:17,230 going to be our end and we are going to 00:12:16,510 --> 00:12:18,940 create a 00:12:17,230 --> 00:12:20,890 material for this I'm just going to 00:12:18,940 --> 00:12:24,160 duplicate this start material and call 00:12:20,890 --> 00:12:27,160 this one end let's drag it on there as 00:12:24,160 --> 00:12:30,910 well and change the albedo to something 00:12:27,160 --> 00:12:33,250 more red and we want this to be a bit 00:12:30,910 --> 00:12:37,000 more saturated so it's very clear that 00:12:33,250 --> 00:12:38,920 this is a red color great so it's going 00:12:37,000 --> 00:12:43,450 to walk from this star that's maybe just 00:12:38,920 --> 00:12:46,210 a bit too much something like that looks 00:12:43,450 --> 00:12:48,130 nice on my screen at least so it's going 00:12:46,210 --> 00:12:53,290 to walk from start and all the way along 00:12:48,130 --> 00:12:55,630 this path over to our end node and we 00:12:53,290 --> 00:12:57,550 should be able to remove the box 00:12:55,630 --> 00:13:00,190 colliders on the start and end node 00:12:57,550 --> 00:13:03,220 along with the colliders on all of our 00:13:00,190 --> 00:13:05,290 ground objects so let's just remove the 00:13:03,220 --> 00:13:07,060 box Collider on those and if you are 00:13:05,290 --> 00:13:10,090 very smart you had made the ground 00:13:07,060 --> 00:13:12,490 object into a prefab I did not think 00:13:10,090 --> 00:13:14,950 about this you might as well do it if 00:13:12,490 --> 00:13:17,440 you haven't created them yet but for now 00:13:14,950 --> 00:13:20,530 unities multiple object selection works 00:13:17,440 --> 00:13:22,660 just fine so let's save this scene and 00:13:20,530 --> 00:13:25,330 this is pretty much going to include the 00:13:22,660 --> 00:13:27,130 very first video on this in the next one 00:13:25,330 --> 00:13:30,400 we are going to make this scene come to 00:13:27,130 --> 00:13:32,260 life a bit more so I hope you enjoyed 00:13:30,400 --> 00:13:35,170 this video I hope that you're looking as 00:13:32,260 --> 00:13:38,200 much forward to future videos in this 00:13:35,170 --> 00:13:40,690 series as I am and again thanks to all 00:13:38,200 --> 00:13:42,520 of the amazing patreon supporters so 00:13:40,690 --> 00:13:45,100 thanks for watching the video and I'll 00:13:42,520 --> 00:13:46,750 see you in the next one thanks to all of 00:13:45,100 --> 00:13:49,210 the awesome patreon supporters who have 00:13:46,750 --> 00:13:51,220 donated so far and a special thanks to 00:13:49,210 --> 00:13:53,790 Lux game TV with the real name Jeff 00:13:51,220 --> 00:13:53,790 sacred