1 00:00:00,000 --> 00:00:03,180 Welcome back, my fellow game developers. 2 00:00:03,180 --> 00:00:06,710 In this video, we've created the broken pieces 3 00:00:06,705 --> 00:00:10,535 and we make sure that when we hit these broken pieces, 4 00:00:10,530 --> 00:00:12,780 they fly a bit apart. 5 00:00:12,780 --> 00:00:14,970 So now when I hit it, there you go. 6 00:00:14,970 --> 00:00:16,800 You can see that these spots moved a 7 00:00:16,800 --> 00:00:18,870 little bit and you can see that, 8 00:00:18,870 --> 00:00:21,180 okay, So for this wasn't the best example. 9 00:00:21,180 --> 00:00:22,800 Let's try to see when we 10 00:00:22,800 --> 00:00:25,590 have two parts that are the same. 11 00:00:25,590 --> 00:00:26,850 So there you go. 12 00:00:26,850 --> 00:00:29,040 Can you tell which one is part 13 00:00:29,040 --> 00:00:32,070 2 and the which one is also part two? 14 00:00:32,070 --> 00:00:35,430 Nope, you can't because we've added a random rotation. 15 00:00:35,429 --> 00:00:36,799 I thought it would have been 16 00:00:36,795 --> 00:00:38,435 a very nice idea when I told you 17 00:00:38,430 --> 00:00:40,270 about it in the previous video, 18 00:00:40,270 --> 00:00:43,370 I thought why not implemented right now into this game. 19 00:00:43,370 --> 00:00:46,130 So let's not waste any more time. 20 00:00:46,130 --> 00:00:48,470 And let's get started. 21 00:00:48,470 --> 00:00:50,270 All the case. 22 00:00:50,270 --> 00:00:54,440 So now when we destroy our broken bought, 23 00:00:54,440 --> 00:00:57,010 we have the broken pieces and speciated. 24 00:00:57,005 --> 00:00:58,315 But first of all, 25 00:00:58,310 --> 00:01:00,110 they are sometimes the same 26 00:01:00,110 --> 00:01:02,270 even though we choose random numbers. 27 00:01:02,270 --> 00:01:05,920 And the second thing is that they don't move apart. 28 00:01:05,915 --> 00:01:09,815 So the first thing that I want to handle is the rotation. 29 00:01:09,815 --> 00:01:12,935 So instead of just having the transform rotation, 30 00:01:12,935 --> 00:01:15,215 but I'm going to do is I'm going to create 31 00:01:15,215 --> 00:01:19,865 another integer, random rotation. 32 00:01:20,140 --> 00:01:28,330 And it's going to be equal to a random range between 04, 33 00:01:28,325 --> 00:01:30,985 Y4 because I'm going to be rotating 34 00:01:30,980 --> 00:01:34,330 them around the z-axis in four directions. 35 00:01:34,325 --> 00:01:36,275 So the way I'm going to do that is by 36 00:01:36,275 --> 00:01:39,145 multiplying in here by 90 degrees. 37 00:01:39,140 --> 00:01:41,270 And we will have four options. 38 00:01:41,270 --> 00:01:44,240 So either we rotate ninety one hundred and twenty two 39 00:01:44,240 --> 00:01:47,500 seventy or we just brought it all the way around. 40 00:01:47,495 --> 00:01:49,825 Maybe this one should be 0. 41 00:01:49,820 --> 00:01:52,280 We start off at 0123. 42 00:01:52,280 --> 00:01:55,100 Okay, so instead of the transform dot rotation, 43 00:01:55,100 --> 00:01:56,570 I'm going to use something called 44 00:01:56,570 --> 00:02:00,320 the quaternion, that ruler. 45 00:02:00,315 --> 00:02:02,715 There we go, That's ruler. 46 00:02:02,710 --> 00:02:04,930 I was looking for it and see it. 47 00:02:04,930 --> 00:02:07,180 So you can see that this translates 48 00:02:07,180 --> 00:02:09,750 the three axis and to the rotation. 49 00:02:09,745 --> 00:02:11,385 And we are going to be obviously 50 00:02:11,380 --> 00:02:14,350 rotating on the, around the z-axis. 51 00:02:14,350 --> 00:02:18,630 So 90 half times the random rotation. 52 00:02:18,625 --> 00:02:19,515 There we go. 53 00:02:19,510 --> 00:02:22,270 Save that. You can see the instantiation right here. 54 00:02:22,270 --> 00:02:24,480 If you think this line is a bit too long, 55 00:02:24,475 --> 00:02:28,255 what you can do is hit Enter on every single line. 56 00:02:28,255 --> 00:02:31,185 And now it's much more obvious what 57 00:02:31,180 --> 00:02:34,650 this instantiation does and what the elements of it are. 58 00:02:34,645 --> 00:02:36,255 Okay, great. Now with this none, 59 00:02:36,250 --> 00:02:38,290 the next thing is we want to add 60 00:02:38,290 --> 00:02:41,580 behavior to our broken pots. 61 00:02:41,575 --> 00:02:45,755 So we are going to go into the scripts in here and 62 00:02:45,755 --> 00:02:48,805 the breakable right-click and create 63 00:02:48,800 --> 00:02:53,020 a C sharp script which will be called the broken pot. 64 00:02:53,015 --> 00:02:57,365 So broken part, hit enter. 65 00:02:57,365 --> 00:03:00,745 Okay, I don't know why this keeps happening 66 00:03:00,740 --> 00:03:03,640 and I'm going to go into the broken parts, 67 00:03:03,635 --> 00:03:05,695 select all three of them, 68 00:03:05,690 --> 00:03:07,190 and go ahead and add 69 00:03:07,190 --> 00:03:12,700 the broken part script on each one of these prefab. 70 00:03:12,695 --> 00:03:15,395 Open the script up and what do we want in here? 71 00:03:15,395 --> 00:03:18,445 So first of all, we want a variable too, 72 00:03:18,440 --> 00:03:21,040 after the movement speed of these parts. 73 00:03:21,035 --> 00:03:25,055 So it's a serialized field which is going to be a float. 74 00:03:25,055 --> 00:03:28,255 And we'll go to the move speed. 75 00:03:28,250 --> 00:03:31,280 And if you want to add a bit more variety, 76 00:03:31,280 --> 00:03:33,200 you can even make each one of them 77 00:03:33,200 --> 00:03:35,120 has a different speed and baby, 78 00:03:35,120 --> 00:03:39,140 depending on how fast dashes or whatever you want to do. 79 00:03:39,140 --> 00:03:43,090 Then we are going to create a private vector 3. 80 00:03:43,085 --> 00:03:45,815 And this will represent the movement direction. 81 00:03:45,815 --> 00:03:48,875 So movement direction. 82 00:03:48,875 --> 00:03:52,235 So in what direction will each piece be moving in? 83 00:03:52,235 --> 00:03:54,085 And finally, we will have something 84 00:03:54,080 --> 00:03:56,060 called a serialized field, 85 00:03:56,060 --> 00:03:58,040 which is going to be a float. 86 00:03:58,040 --> 00:04:02,370 And this is the halting factor. 87 00:04:02,374 --> 00:04:05,334 And it's going to be 50 of these numbers are 88 00:04:05,330 --> 00:04:08,360 arbitrary and I've already tested a couple of outsold. 89 00:04:08,360 --> 00:04:09,950 That's why I know why five-act. 90 00:04:09,950 --> 00:04:13,520 But anyways, what is this halting factor? 91 00:04:13,520 --> 00:04:16,060 Obviously, when our pieces break up, 92 00:04:16,055 --> 00:04:17,635 they will spread apart, 93 00:04:17,630 --> 00:04:19,750 but then they will stop at some point. 94 00:04:19,745 --> 00:04:22,885 So our goal is to make the salting factor, 95 00:04:22,880 --> 00:04:25,610 which will affect the pieces as 96 00:04:25,610 --> 00:04:28,400 they move away from each other and finally stopped them. 97 00:04:28,400 --> 00:04:31,700 So we will slowly be slowing down. 98 00:04:31,700 --> 00:04:33,910 And I'll show you how we'll be 99 00:04:33,905 --> 00:04:36,425 slowing down using something called lobe. 100 00:04:36,425 --> 00:04:38,635 But let's not get ahead of ourselves. 101 00:04:38,630 --> 00:04:41,270 First thing we want to do is we want to have 102 00:04:41,270 --> 00:04:45,220 a random direction in which each piece moves. 103 00:04:45,215 --> 00:04:46,895 So first of all, I'm going to 104 00:04:46,895 --> 00:04:49,735 make a movement direction of x. 105 00:04:49,730 --> 00:04:51,760 So why am I doing this and start? 106 00:04:51,755 --> 00:04:54,265 Because the broken part is attached 107 00:04:54,260 --> 00:04:56,890 to the broken piece, which instantiates. 108 00:04:56,885 --> 00:04:59,125 And as soon as it instantiates, 109 00:04:59,120 --> 00:05:00,950 the start is being called. 110 00:05:00,950 --> 00:05:03,730 And then start will determine what the direction is. 111 00:05:03,725 --> 00:05:07,765 So the movement direction dot x2 will be equal to 112 00:05:07,760 --> 00:05:13,340 the random dot range and what values you, 113 00:05:13,340 --> 00:05:15,860 you can choose any value you want in here. 114 00:05:15,860 --> 00:05:18,650 But just to make it a bit of fun. 115 00:05:18,650 --> 00:05:20,480 For example, you have 116 00:05:20,480 --> 00:05:23,450 the broken pieces flying off very fast. 117 00:05:23,450 --> 00:05:25,490 I think the direction, 118 00:05:25,490 --> 00:05:28,130 the randomness of the direction will 119 00:05:28,130 --> 00:05:31,540 be a bit more wacky, let's call it. 120 00:05:31,535 --> 00:05:33,445 So what we'll do is we'll use 121 00:05:33,440 --> 00:05:36,980 the minus movement speed as 122 00:05:36,980 --> 00:05:40,850 the minimum and the movement speed as the maximum. 123 00:05:40,850 --> 00:05:43,870 So now as the movement speed increases, 124 00:05:43,865 --> 00:05:45,665 if you wish to increase it, 125 00:05:45,665 --> 00:05:48,845 the randomness will also increase. 126 00:05:48,845 --> 00:05:50,605 And having a minus will make 127 00:05:50,600 --> 00:05:52,670 sure that some pieces just go. 128 00:05:52,670 --> 00:05:55,120 I don't know where some random place. 129 00:05:55,115 --> 00:05:57,995 So now with the movement acts downwards, 130 00:05:57,995 --> 00:06:00,025 that's have the movement y and 131 00:06:00,020 --> 00:06:02,270 it's going to be exactly the same. 132 00:06:02,270 --> 00:06:03,010 With that. 133 00:06:03,005 --> 00:06:04,495 Let's continue on. We want to 134 00:06:04,490 --> 00:06:06,350 start actually moving the pieces and 135 00:06:06,350 --> 00:06:09,830 we're going to use the transform dot position. 136 00:06:09,830 --> 00:06:11,960 And we're going to be increasing it by 137 00:06:11,960 --> 00:06:17,480 the movement direction times time dot delta time. 138 00:06:17,480 --> 00:06:20,450 Obviously we know plus, plus equals, 139 00:06:20,450 --> 00:06:23,690 so it moves slowly and the movement direction times 140 00:06:23,690 --> 00:06:27,100 Time.deltaTime to detach from the frame rate. 141 00:06:27,095 --> 00:06:29,875 So this would be more stable. 142 00:06:29,870 --> 00:06:30,890 Anyways. 143 00:06:30,890 --> 00:06:32,570 Now we need to make sure that we 144 00:06:32,570 --> 00:06:34,520 are halting the movement of 145 00:06:34,520 --> 00:06:36,590 each piece and not just having them move 146 00:06:36,590 --> 00:06:39,050 into infinity and going through everything. 147 00:06:39,050 --> 00:06:40,970 So the way we are going to do 148 00:06:40,970 --> 00:06:43,190 that is using something called the Learn. 149 00:06:43,190 --> 00:06:46,190 So I'm going to show you what is, 150 00:06:46,190 --> 00:06:47,830 make sure that you find it on your 151 00:06:47,825 --> 00:06:49,655 own in Unity's documentation. 152 00:06:49,655 --> 00:06:53,225 What does it do? It takes in three variables. 153 00:06:53,225 --> 00:06:55,915 The first one is the start value of 154 00:06:55,910 --> 00:06:59,320 the speed of and with its the start value. 155 00:06:59,315 --> 00:07:02,005 B is the end value and t is 156 00:07:02,000 --> 00:07:05,270 the value to interpolate between a and b. 157 00:07:05,270 --> 00:07:07,580 What does interpolation mean? 158 00:07:07,580 --> 00:07:10,270 So, linear interpolation between the two points. 159 00:07:10,265 --> 00:07:15,295 So what happens is we want to take the value a or any 160 00:07:15,290 --> 00:07:21,080 value from a to B using a factor of t Every single time. 161 00:07:21,080 --> 00:07:22,220 So this will be 162 00:07:22,220 --> 00:07:23,750 the Halting factor that 163 00:07:23,750 --> 00:07:25,700 we talked about that we are going to 164 00:07:25,700 --> 00:07:27,920 be applying and make sure that 165 00:07:27,920 --> 00:07:30,310 you understand what is happening in here. 166 00:07:30,305 --> 00:07:34,645 We are trying to move the pieces slower and slower. 167 00:07:34,640 --> 00:07:39,520 So we are going to start off with some kind of direction. 168 00:07:39,515 --> 00:07:42,155 And then we are going to be taking it 169 00:07:42,155 --> 00:07:45,335 to 0 to stop the pieces from moving. 170 00:07:45,335 --> 00:07:48,395 So I'm going to issue 171 00:07:48,395 --> 00:07:51,925 this challenge to use her to stop the movement. 172 00:07:51,920 --> 00:07:54,020 So first of all, we want to decrease 173 00:07:54,020 --> 00:07:56,350 the momentum of the broken pieces, 174 00:07:56,345 --> 00:07:57,625 of the moving pieces. 175 00:07:57,620 --> 00:08:01,360 We want to set the movement direction to learn. 176 00:08:01,355 --> 00:08:03,935 We're going to start value. 177 00:08:03,935 --> 00:08:05,905 We're going to have the start value 178 00:08:05,900 --> 00:08:08,150 be the actual movement direction, 179 00:08:08,150 --> 00:08:10,730 and the end value should be the 0. 180 00:08:10,730 --> 00:08:14,420 And finally, the speed of which we are going to 181 00:08:14,420 --> 00:08:16,190 be halting the movement is going 182 00:08:16,190 --> 00:08:18,020 to be the Halting factor. 183 00:08:18,020 --> 00:08:20,740 So basically this challenge as you 184 00:08:20,735 --> 00:08:24,085 applying, stop the movement. 185 00:08:24,080 --> 00:08:29,600 So pause the video right now and go do the challenge. 186 00:08:29,600 --> 00:08:31,610 Okay, welcome back. 187 00:08:31,610 --> 00:08:33,920 So in here, after our 188 00:08:33,920 --> 00:08:37,250 while we are moving in certain directions. 189 00:08:37,249 --> 00:08:39,919 So we have the movement direction as 190 00:08:39,920 --> 00:08:42,470 the only factor that's affecting this. 191 00:08:42,470 --> 00:08:47,030 So in here are going to set the move direction to 192 00:08:47,030 --> 00:08:53,160 be equal to a vector three bottlers. 193 00:08:53,980 --> 00:08:57,170 And in here, the initial value 194 00:08:57,170 --> 00:08:59,300 will be the movement direction. 195 00:08:59,300 --> 00:09:05,740 The final value will be vector 3 0, and the factor, 196 00:09:05,735 --> 00:09:07,285 the T will be 197 00:09:07,280 --> 00:09:09,950 the Halting factor times 198 00:09:09,950 --> 00:09:12,530 Time.deltaTime because we are 199 00:09:12,530 --> 00:09:13,730 learning every single frame, 200 00:09:13,730 --> 00:09:15,580 so we don't want it to be very fast. 201 00:09:15,575 --> 00:09:19,105 Okay, so let's go back in here and 202 00:09:19,100 --> 00:09:22,790 let's test this out and see if it works. For we do that. 203 00:09:22,790 --> 00:09:24,110 I'm going to go into the 204 00:09:24,110 --> 00:09:28,470 prefab and see what we have broken parts. 205 00:09:28,630 --> 00:09:30,980 Maybe we can add them here. 206 00:09:30,980 --> 00:09:32,270 So breakable pot. 207 00:09:32,270 --> 00:09:33,050 There we go. 208 00:09:33,050 --> 00:09:34,970 It's in the broken parts, 209 00:09:34,970 --> 00:09:36,820 maybe whatever it's called. 210 00:09:36,815 --> 00:09:39,275 Okay, broken pots, run the game. 211 00:09:39,275 --> 00:09:40,805 Let's see what happens. 212 00:09:40,805 --> 00:09:42,605 Maybe this doesn't work at all then. 213 00:09:42,605 --> 00:09:43,795 Oh, nice. 214 00:09:43,790 --> 00:09:45,290 So as you can see, 215 00:09:45,290 --> 00:09:49,640 each part went our separate ways and you can see we have 216 00:09:49,640 --> 00:09:52,040 the part one which was exactly on 217 00:09:52,040 --> 00:09:54,890 top of the part one or the other part 1. 218 00:09:54,890 --> 00:09:56,800 So they had the same rotation. 219 00:09:56,795 --> 00:09:58,595 Let's test this out again. 220 00:09:58,595 --> 00:10:00,665 There we go, we destroy it. 221 00:10:00,665 --> 00:10:02,605 What do we have? Part 2. 222 00:10:02,600 --> 00:10:06,710 2. And so can you figure out which part the two was? 223 00:10:06,710 --> 00:10:08,650 So if I move this right, 224 00:10:08,645 --> 00:10:11,945 also still having the same rotation for some reason, 225 00:10:11,945 --> 00:10:14,245 did we do something not completely right, 226 00:10:14,240 --> 00:10:19,160 so I'm going to break the pot and let's see. 227 00:10:19,160 --> 00:10:21,080 Okay, so I feel that 228 00:10:21,080 --> 00:10:23,720 the rotation thing isn't working if I 229 00:10:23,720 --> 00:10:29,330 go back to the breakable random rotation. 230 00:10:29,330 --> 00:10:30,860 Okay, welcome back. 231 00:10:30,860 --> 00:10:33,110 So I was worried that there was something 232 00:10:33,110 --> 00:10:35,600 wrong with the code, but no, apparently, 233 00:10:35,600 --> 00:10:37,700 we are either the luckiest people on 234 00:10:37,700 --> 00:10:40,010 the world or the unlucky asked people on the world, 235 00:10:40,010 --> 00:10:41,360 depending on how you look at it. 236 00:10:41,360 --> 00:10:43,880 But every single time the rotations were the same. 237 00:10:43,880 --> 00:10:45,100 So you can see right here, 238 00:10:45,095 --> 00:10:50,635 part two is minus 180 and the other part 2 is minus 90. 239 00:10:50,630 --> 00:10:53,150 So again, let's test this out. 240 00:10:53,150 --> 00:10:55,010 And let's see, there we go. 241 00:10:55,010 --> 00:10:55,780 We break it. 242 00:10:55,775 --> 00:10:58,015 And you can see we have Part 1 and Part one. 243 00:10:58,010 --> 00:11:01,420 But can you tell the difference between these two parts? 244 00:11:01,415 --> 00:11:04,195 So you can see that this one is 90 degrees 245 00:11:04,190 --> 00:11:07,030 rotated and this one is the same. 246 00:11:07,025 --> 00:11:10,255 Wrote it. So there is a big difference between them. 247 00:11:10,250 --> 00:11:13,070 So that done, I hope you can 248 00:11:13,070 --> 00:11:16,730 see and appreciate how random rotations work. 249 00:11:16,730 --> 00:11:18,560 I hope you can see and appreciate how 250 00:11:18,560 --> 00:11:21,590 the small detail of adding a bit of velocity to 251 00:11:21,590 --> 00:11:23,780 the broken pieces makes everything look 252 00:11:23,780 --> 00:11:27,230 more and let's say natural and better. 253 00:11:27,230 --> 00:11:29,620 So let's make sure that we stay 254 00:11:29,615 --> 00:11:32,125 all of our changes and I hope you're 255 00:11:32,120 --> 00:11:34,100 enjoying and I'll see you in the next video 256 00:11:34,100 --> 00:11:36,380 where we actually will be getting rid of 257 00:11:36,380 --> 00:11:38,290 these part that fell apart 258 00:11:38,285 --> 00:11:41,105 using something similar to learn. 259 00:11:41,105 --> 00:11:45,055 But we'll be applying it to the broken parts to make 260 00:11:45,050 --> 00:11:49,070 them slowly disappear and not just an instant go away. 261 00:11:49,070 --> 00:11:51,030 So I'll see you.