1 00:00:00,000 --> 00:00:03,550 Welcome back, my fellow game developers. 2 00:00:03,554 --> 00:00:08,384 In this video, we are going to not only be rotating the gun, 3 00:00:08,385 --> 00:00:13,535 but we are also going to be pointing in the right direction. 4 00:00:13,530 --> 00:00:15,120 But not only that, 5 00:00:15,120 --> 00:00:17,870 not only are we pointing in the right direction, 6 00:00:17,865 --> 00:00:20,285 we can also point back. 7 00:00:20,280 --> 00:00:23,220 And this is very important and this will be your challenge. 8 00:00:23,220 --> 00:00:26,910 We are going to be learning how we can use if conditions, 9 00:00:26,910 --> 00:00:30,710 if statements in order to rotate from left to right. 10 00:00:30,710 --> 00:00:32,420 And it's going to be very fond, 11 00:00:32,420 --> 00:00:35,410 is going to be amazing because we are making 12 00:00:35,405 --> 00:00:38,855 our gain much more alive, much more effective. 13 00:00:38,855 --> 00:00:40,925 So let's not waste any more time. 14 00:00:40,925 --> 00:00:43,255 And let's get started. 15 00:00:43,250 --> 00:00:45,260 Oh, okay. 16 00:00:45,260 --> 00:00:49,820 So now our gum is actually rotating. 17 00:00:49,820 --> 00:00:53,980 It is always pointing towards the mouse. That's great. 18 00:00:53,975 --> 00:00:59,335 But what happens when we go over a certain limit? 19 00:00:59,330 --> 00:01:03,610 You can see right now that the GAN still pointing towards the mouth. 20 00:01:03,605 --> 00:01:06,785 But it is, first of all, it's inverted. 21 00:01:06,785 --> 00:01:11,055 Second of all, the player isn't looking in the proper direction, 22 00:01:11,059 --> 00:01:13,729 so we need to fix all of that. 23 00:01:13,730 --> 00:01:21,290 But how, how can we tell our player to behave in a way when he 24 00:01:21,290 --> 00:01:24,980 is looking in one direction and another way when he is looking 25 00:01:24,980 --> 00:01:29,020 in the other direction or should be looking at how can we tell him? 26 00:01:29,015 --> 00:01:30,565 If it's like this, 27 00:01:30,560 --> 00:01:32,210 then we want to do something. 28 00:01:32,210 --> 00:01:34,490 If it's something else, 29 00:01:34,490 --> 00:01:36,320 we want to do something else. 30 00:01:36,320 --> 00:01:40,370 Well, this is what we call the if statement. 31 00:01:40,370 --> 00:01:42,200 Let me take you through it. 32 00:01:42,200 --> 00:01:46,150 So conditional IF statement structure. 33 00:01:46,145 --> 00:01:49,445 This is how the syntax looks like. 34 00:01:49,445 --> 00:01:53,195 We have some condition that needs to be true. 35 00:01:53,195 --> 00:01:56,845 It's inside of these two brackets right here. 36 00:01:56,840 --> 00:02:00,350 And if that condition is true, 37 00:02:00,350 --> 00:02:05,940 then the code inside of these two squiggly lines is executed. 38 00:02:05,944 --> 00:02:09,384 If it's not, then we have something called the else. 39 00:02:09,380 --> 00:02:12,430 If, if this condition is not true, 40 00:02:12,425 --> 00:02:16,715 else if some other condition is true, 41 00:02:16,715 --> 00:02:19,085 this code will be executed. 42 00:02:19,085 --> 00:02:24,715 And if neither this condition nor the second one is true, 43 00:02:24,710 --> 00:02:27,370 then we have something called the else. 44 00:02:27,365 --> 00:02:33,485 And this code will be executed if none of the previous conditions are true, 45 00:02:33,485 --> 00:02:38,455 you can add as many else if statements as you want so you can add. 46 00:02:38,450 --> 00:02:43,070 The first one is always if you can even not do an else, 47 00:02:43,070 --> 00:02:48,860 if you can immediately add an else or you can add 15 else ifs, if you need to, 48 00:02:48,860 --> 00:02:51,290 you might never need that money, 49 00:02:51,290 --> 00:02:53,960 but if you ever do need more than one, 50 00:02:53,960 --> 00:02:55,510 more than two, you can add. 51 00:02:55,505 --> 00:02:57,895 So we have a condition in here. 52 00:02:57,890 --> 00:03:00,920 If it's true, this code executes and we stop. 53 00:03:00,920 --> 00:03:03,950 We do not continue looking down. 54 00:03:03,950 --> 00:03:06,980 If this not, this first one isn't true. 55 00:03:06,980 --> 00:03:08,290 We look to the second one. 56 00:03:08,285 --> 00:03:09,755 If it is, we execute, 57 00:03:09,755 --> 00:03:11,155 if it's not, we continue. 58 00:03:11,150 --> 00:03:16,450 Finally, if we don't find any condition that is true, we execute else. 59 00:03:16,445 --> 00:03:18,755 So let's go ahead and implement that. 60 00:03:18,755 --> 00:03:21,625 So what are we looking for in here? 61 00:03:21,620 --> 00:03:25,610 We are looking to rotate the entire object. 62 00:03:25,609 --> 00:03:29,739 If so, what are we looking for in here? 63 00:03:29,735 --> 00:03:33,485 We want to see if the mouse position 64 00:03:33,485 --> 00:03:37,735 is less than because let's look at the dome player for example, 65 00:03:37,730 --> 00:03:41,450 this is the position on the x back in the scene. 66 00:03:41,450 --> 00:03:44,720 So when we are moving backwards, 67 00:03:44,720 --> 00:03:49,580 you can see that it's less when we are moving to the right. That means it's small. 68 00:03:49,580 --> 00:03:53,890 So imagine the mouse position as being a another game object. 69 00:03:53,885 --> 00:03:58,885 For example, We are in here and this area to the left of the player, 70 00:03:58,880 --> 00:04:03,290 that means the most position is less than this green point, 71 00:04:03,290 --> 00:04:09,430 which means we want to rotate the entire don't player to the other side. 72 00:04:09,425 --> 00:04:11,795 But how are we actually going to do that? 73 00:04:11,795 --> 00:04:14,245 Well, there is the scale right here, 74 00:04:14,240 --> 00:04:15,890 which makes it super easy. 75 00:04:15,890 --> 00:04:18,440 So if I change the scale on the x, 76 00:04:18,440 --> 00:04:21,190 you can see that he becomes wider and wider. 77 00:04:21,185 --> 00:04:24,275 But what happens when we go and negative? 78 00:04:24,274 --> 00:04:26,074 So when we go Negative, 79 00:04:26,075 --> 00:04:27,715 yep, there we go. 80 00:04:27,710 --> 00:04:29,930 We actually flip the player. 81 00:04:29,930 --> 00:04:35,440 And this is what we want to be adjusting whenever we are looking in the other direction. 82 00:04:35,435 --> 00:04:40,675 And this direction, when the mouse position is less than the screen point, 83 00:04:40,670 --> 00:04:42,170 which is the player. 84 00:04:42,170 --> 00:04:44,540 We want to be looking right here. 85 00:04:44,540 --> 00:04:48,220 And this direction we want to change the scale to minus one, 86 00:04:48,215 --> 00:04:50,305 not only the ACS, also the y. 87 00:04:50,300 --> 00:04:51,760 We will see why. 88 00:04:51,755 --> 00:04:55,075 So now that we have those things established, 89 00:04:55,070 --> 00:04:57,980 let's create our first if statement. 90 00:04:57,980 --> 00:05:02,230 So in here, we are going to create enough. 91 00:05:02,225 --> 00:05:06,115 We're going to open the two brackets or columns. 92 00:05:06,110 --> 00:05:07,700 I'm not sure what they're called. 93 00:05:07,700 --> 00:05:11,050 We're going to check for the mouse position dot x. 94 00:05:11,045 --> 00:05:13,165 We don't need the y. It doesn't matter. 95 00:05:13,160 --> 00:05:19,760 And if it's less than the screen point, the RX. 96 00:05:19,755 --> 00:05:25,405 Then we are going to take the transform local scale, 97 00:05:25,405 --> 00:05:30,205 which is the local scale of the object holding this script. 98 00:05:30,205 --> 00:05:38,355 That means the entire don't player is going to be new vector 3 minus 1, 99 00:05:38,350 --> 00:05:42,980 f 1, f 1. 100 00:05:43,920 --> 00:05:46,550 Save that. 101 00:06:59,350 --> 00:07:01,450 We run the gain. 102 00:07:01,445 --> 00:07:03,535 This is while the y is still positive. 103 00:07:03,530 --> 00:07:05,490 So if we look in the other direction, 104 00:07:05,494 --> 00:07:07,894 you can see that the gun is upside down. 105 00:07:07,895 --> 00:07:13,045 So our goal, let me just show you and the way I pause this using keys is control 106 00:07:13,040 --> 00:07:18,730 shift P. So what we need to do is if we grab the weapons arm, 107 00:07:18,725 --> 00:07:21,235 if I set it to minus one, there you go. 108 00:07:21,230 --> 00:07:27,140 You can see that we are back at a proper scale or a proper advertisement. 109 00:07:27,135 --> 00:07:30,075 So I'm going to set this to minus1, 110 00:07:30,070 --> 00:07:33,900 save that back in our game, run the game. 111 00:07:33,895 --> 00:07:36,895 And now we look up and down, the gang rotates. 112 00:07:36,895 --> 00:07:39,525 If we go to the other side, there you go. 113 00:07:39,520 --> 00:07:41,820 The gun looks properly. 114 00:07:41,815 --> 00:07:44,565 Great. So everything is set up. 115 00:07:44,560 --> 00:07:46,710 The only problem is when we look back, 116 00:07:46,705 --> 00:07:48,235 the player doesn't change. 117 00:07:48,235 --> 00:07:54,705 So how are we going to make sure that when we don't have this condition as true, 118 00:07:54,700 --> 00:07:58,260 how are we going to rotate the player back? 119 00:07:58,255 --> 00:08:00,585 Well, it's your challenge. 120 00:08:00,580 --> 00:08:04,270 Your challenge is to create an else statement. 121 00:08:04,270 --> 00:08:07,710 You'll need to add to the if statements and else statements. 122 00:08:07,705 --> 00:08:09,705 We already saw how that looks. 123 00:08:09,705 --> 00:08:16,285 This will activate when the mouse position x is smaller than the screen point x. 124 00:08:16,280 --> 00:08:23,910 In that case, we need to set the local scales or all the local scales back to one. 125 00:08:24,370 --> 00:08:27,550 And I'm going to give you a small hint, 126 00:08:27,545 --> 00:08:31,775 which is to set the scale to vector three dot one, 127 00:08:31,775 --> 00:08:33,025 vector three dot one. 128 00:08:33,020 --> 00:08:36,010 You can also research on Unity's documentation. 129 00:08:36,005 --> 00:08:40,465 It means that it's a vector 3, 1, 1, 1. 130 00:08:40,460 --> 00:08:45,080 Pause the video right now and go do the challenge. 131 00:08:45,080 --> 00:08:47,270 Okay, welcome back. 132 00:08:47,270 --> 00:08:49,190 How did you get all of that? 133 00:08:49,190 --> 00:08:54,680 I really, really hope that you are always trying to bust with these challenges. 134 00:08:54,680 --> 00:08:57,680 So I'm going to create an else statement in here. 135 00:08:57,680 --> 00:09:03,530 And what I'm going to do is I'm going to take the transform local scale. 136 00:09:03,530 --> 00:09:07,930 And it's going to be equal to vector three dot one. 137 00:09:07,925 --> 00:09:09,665 Let's save that. 138 00:09:09,665 --> 00:09:13,435 And I'm going to also duplicate this. 139 00:09:13,430 --> 00:09:18,580 So the way we duplicate it as remember Control D. And instead of the transform, 140 00:09:18,575 --> 00:09:20,825 I'm going to use the weapons are, 141 00:09:20,825 --> 00:09:22,655 I'm going to save all of that. 142 00:09:22,655 --> 00:09:25,355 I'm going to go back into my game. 143 00:09:25,355 --> 00:09:27,365 I'm going to run it. 144 00:09:27,365 --> 00:09:30,335 So now I look to the right, 145 00:09:30,335 --> 00:09:32,015 my gun rotates properly. 146 00:09:32,015 --> 00:09:34,415 Everything is good. I look to the left, 147 00:09:34,415 --> 00:09:36,395 the gun rotates properly. 148 00:09:36,394 --> 00:09:39,214 The player is looking in the right direction. 149 00:09:39,215 --> 00:09:42,085 Now if I go back, there we go. 150 00:09:42,080 --> 00:09:46,090 So you can see that we have fixed our problem. 151 00:09:46,085 --> 00:09:49,265 The player always looks in the right direction. 152 00:09:49,265 --> 00:09:51,625 We have the gun pointing properly, 153 00:09:51,620 --> 00:09:55,180 and we finally look amazing while doing it. 154 00:09:55,175 --> 00:09:56,755 So now we can walk around. 155 00:09:56,750 --> 00:10:02,590 You can see that it's much more natural because it's always pointing towards the gun. 156 00:10:02,585 --> 00:10:06,955 Not only is the weapon pointing properly towards the gun, 157 00:10:06,950 --> 00:10:09,950 weapon problem pointing towards the mouse, 158 00:10:09,950 --> 00:10:12,310 but also deep layer, 159 00:10:12,305 --> 00:10:18,405 entire body is rotating and pointing in the right direction. 160 00:10:18,409 --> 00:10:23,749 So that done, make sure to go ahead and commit the changes that we made. 161 00:10:23,750 --> 00:10:28,730 And in the next video we are going to be adding more flavor to our games. 162 00:10:28,730 --> 00:10:32,870 How, by creating the walking, the idling, 163 00:10:32,870 --> 00:10:41,330 and maybe even the torpedo animations for the player can't wait to start animating. 164 00:10:41,330 --> 00:10:44,010 I'll see you in the next one.