WEBVTT 00:00.540 --> 00:09.840 Now that we've sort of gone over the general data that we're going to need to start actually reading 00:09.840 --> 00:11.450 some sparks. 00:11.970 --> 00:16.890 So let's start with something you know we're going to need which is position 00:19.560 --> 00:20.480 sition 00:24.480 --> 00:37.470 that in course is just going to be a x and y is x and y k in. 00:37.520 --> 00:40.870 Do you keep having the size of the sprites. 00:40.880 --> 00:45.250 Let's also make that a struct struck 00:47.660 --> 00:52.460 size in in touch with 01:00.840 --> 01:04.040 so it's to the player 01:12.930 --> 01:15.980 did the player have a position. 01:15.990 --> 01:21.700 It had a missile which we know is really just a position as well. 01:21.810 --> 01:23.280 It had an animation state. 01:23.310 --> 01:31.840 So we're trying to figure out what that will be in full size in the number of lives and the score. 01:31.870 --> 01:37.660 So where will have a position type 01:40.650 --> 01:42.900 column I mean we call it. 01:43.330 --> 01:50.080 Well we'll keep it as position as less typing and call it position 01:54.770 --> 01:59.240 as a position for the missile. 02:00.800 --> 02:01.890 Right. 02:02.290 --> 02:05.280 And it has a size. 02:05.520 --> 02:08.330 Well Spryte 02:12.430 --> 02:25.350 carry in like a said hand the animation States we're going to represented as an integer. 02:25.520 --> 02:35.710 And the reason we look up here we see that we can really think of this as kind of a simple array of 02:35.710 --> 02:38.090 two elements right. 02:38.170 --> 02:44.600 So I have this as the first Sprite and this as the second sprite. 02:44.600 --> 02:54.160 So in terms of the order it would be in it be 0 and 1 and could have this be a boolean but I think an 02:54.160 --> 02:58.150 integer would be better in this case. 02:58.420 --> 03:01.010 So it's going to be an integer. 03:01.140 --> 03:09.800 And do the same for the aliens state as well and you get there. 03:10.490 --> 03:25.380 We also said it had lives a score in and well and lives and score sorry in their lives. 03:27.810 --> 03:33.880 Max 3 lives very in the score. 03:37.580 --> 03:41.650 Well OK it for now. 03:41.720 --> 03:44.690 So let's work on the 03:47.530 --> 03:49.850 work on the shields. 03:52.410 --> 03:53.730 So strong. 03:53.830 --> 03:54.200 CH 03:56.620 --> 03:57.740 shield. 04:01.190 --> 04:03.350 So it will have a position 04:07.020 --> 04:10.100 and it also has a right in. 04:10.110 --> 04:19.400 We're going to are we to represent our sprites as character pointer arrays. 04:19.410 --> 04:24.670 Sedgley so spritely this. 04:24.870 --> 04:35.940 So each in and have this be how many how high it is. 04:36.010 --> 04:39.330 So if I go up here. 04:39.420 --> 04:42.820 So each one's going to be. 04:43.050 --> 04:46.370 So this will be part of the Spryte. 04:46.710 --> 04:49.180 Or at least the first kind of entry of the sprite. 04:49.200 --> 04:51.280 This will be the second entry of this right. 04:51.310 --> 04:53.130 And this will be the third entry that's. 04:53.170 --> 04:56.240 So each kind of 04:59.580 --> 05:07.870 this will be like kind of a C string sort of or a character pointer really of this many say and all 05:07.860 --> 05:10.600 have three elements. 05:10.610 --> 05:22.120 It'll have this element in this element and this element as kind of an array of sort of CCed rings you 05:22.120 --> 05:24.420 want to think that way. 05:24.720 --> 05:27.340 Or really character arrays. 05:27.360 --> 05:29.510 OK I'm not really going to be strong. 05:30.040 --> 05:37.350 So our height is three so we should probably start having some constants. 05:38.500 --> 05:49.570 Amie's that anonymous enim trick that I used last time in Battleship iness shield sprites Heights is 05:49.740 --> 05:51.430 three. 05:52.970 --> 05:53.630 So 05:59.000 --> 06:00.990 it's like this. 06:01.000 --> 06:08.770 And so it's three because again this will be kind of one element of the array. 06:08.810 --> 06:14.240 This whole this whole kind of string or it's whole kind of character array or character 06:16.850 --> 06:18.890 one character pointer really. 06:19.280 --> 06:22.880 And similarly this will be another one and this will be no. 06:23.160 --> 06:23.840 OK. 06:23.870 --> 06:28.200 So that's how we're going to represent it. 06:28.250 --> 06:38.220 So it's an array of character or pointer to characters an array of character pointers and all are sprites 06:38.230 --> 06:41.420 in fact will be some kind of array of characters. 06:42.680 --> 06:46.330 As you'll see in so we have the shield. 06:46.330 --> 06:49.810 All I had was the sprites and it had a position and that's it 06:52.360 --> 06:59.250 so let's go now to the aliens war. 07:04.300 --> 07:05.640 This will be a start. 07:08.880 --> 07:13.110 And of course his position as the 07:15.990 --> 07:17.400 so up here 07:20.470 --> 07:24.180 says state. 07:24.220 --> 07:29.900 So this is really the state of each alien. 07:30.200 --> 07:31.030 OK. 07:31.510 --> 07:44.860 And we know we have 11 aliens per row and are living aliens Preux and we have five rows right. 07:46.330 --> 07:56.070 So we're actually going to need a 2D array to represent all our peeps. 07:56.150 --> 07:59.440 That's all our stake states. 07:59.470 --> 08:01.040 Each alien can. 08:01.060 --> 08:09.660 So don't you actually need another enim or call alien state. 08:13.420 --> 08:22.470 An alien can be alive and make that sort of the default could be dead or could be exploding. 08:25.980 --> 08:32.720 And in fact we're going to have a 2-D array of all the aliens. 08:38.200 --> 08:45.390 Really believes this is asking me to array and Raanta need. 08:47.120 --> 08:58.260 How many rows and columns and rows and we have five in one to have 09:00.840 --> 09:04.910 the columns and there was 11. 09:05.460 --> 09:06.840 See if you remember it. 09:06.850 --> 09:11.630 Here are five rows of 11 beater's. 09:13.440 --> 09:16.690 So are 09:20.490 --> 09:23.130 rows no 09:25.710 --> 09:26.920 columns. 09:28.590 --> 09:31.230 So this is really the state it's 09:38.990 --> 09:52.730 state of each Maybe you got that for now we also need the signs of each one. 09:52.990 --> 09:54.220 This is 09:56.910 --> 09:59.310 going to need the 10:01.930 --> 10:03.250 animation. 10:03.460 --> 10:05.590 So animation speech 10:11.490 --> 10:16.700 we're going to need the direction that's going 10:19.560 --> 10:20.540 also nature. 10:20.560 --> 10:31.970 So it will be greater than one or be greater than zero for 10:34.350 --> 10:35.520 going right. 10:35.610 --> 10:37.740 In less than zero. 10:40.030 --> 10:40.460 Going 10:43.230 --> 10:43.950 left. 10:44.070 --> 10:44.490 OK. 10:44.550 --> 10:48.200 So it's really going to be either one or make one 10:54.630 --> 10:59.970 and of course we're going to need the alien bombs. 11:00.620 --> 11:14.110 But we're ready to structure the arms or a C struct union bomb in we're going to need that position. 11:18.070 --> 11:20.930 And we're going to need the animation just 11:27.850 --> 11:30.520 in set up here. 11:30.560 --> 11:37.560 If you remember in the scription it says we have a maximum of three bombs. 11:37.860 --> 11:39.030 Forty eight. 11:39.090 --> 11:44.040 So another constant here. 11:44.230 --> 11:52.180 And say max number one bombs. 11:52.350 --> 11:52.770 Three 11:57.870 --> 11:58.830 in scope. 11:58.850 --> 12:11.810 Put it this right here on say a clean bomb and call it bombs. 12:12.020 --> 12:13.830 It's going to be an array. 12:14.000 --> 12:14.580 OK. 12:16.180 --> 12:27.090 And we're also going to need if that's the case down here the number of bombs in play right. 12:27.160 --> 12:28.320 Because it could be. 12:28.360 --> 12:32.220 So this is just a maximum is the maximum. 12:32.320 --> 12:37.060 But there could be just one or it could be zero two or three or eight. 12:37.060 --> 12:41.530 So each know how many bombs are actually in play. 12:41.540 --> 12:41.840 Kurt 12:46.150 --> 12:47.450 CH for 12:50.120 --> 12:55.000 its size and direction position. 12:55.080 --> 12:56.790 That's it. 12:56.790 --> 12:59.010 This won't be everything we need. 12:59.010 --> 13:08.190 And I think the for example we're also going to need a movement timer. 13:09.540 --> 13:23.200 Movement time and this this is going to capture how fast the aliens should be going 13:27.630 --> 13:32.330 and also we're going to need the explosion for 13:38.620 --> 13:46.680 and this is going to capture how long to explode for 13:49.570 --> 13:53.830 said up here somewhere. 13:53.920 --> 13:55.260 The plane hit it. 13:55.370 --> 14:00.430 If an alien is hit they should explode for a short period of time and then they disappear. 14:00.460 --> 14:03.010 So that's what this is going to capture. 14:03.010 --> 14:04.730 So we missed this before. 14:04.950 --> 14:13.480 But if the ear should keep going back to the problem and keep kind of thinking about how you're going 14:13.480 --> 14:17.260 to represent certain data or certain things. 14:17.290 --> 14:18.460 OK. 14:18.610 --> 14:22.970 And there's one other thing I'm going to put in here. 14:23.160 --> 14:32.220 There she has a couple to say how many aliens were left. 14:32.850 --> 14:47.930 And this is to capture when to restart or when to go and go to the next level 14:52.880 --> 15:03.620 and the last thing I want is the line and this is to capture 15:05.930 --> 15:09.240 when the aliens win. 15:09.500 --> 15:09.890 OK. 15:10.010 --> 15:11.850 So if you looked up here 15:17.570 --> 15:22.590 so on the one then each drop 11 lines to reach the bottom and invade. 15:22.760 --> 15:23.150 OK. 15:23.150 --> 15:30.590 So I'm going to capture that in in so which line they're actually at current. 15:30.870 --> 15:31.730 If they're at 15:35.030 --> 15:37.390 well orchestrated at whatever level right. 15:37.400 --> 15:46.410 So it starts at the current level and decreases right. 15:49.020 --> 15:59.310 To zero case once once it's zero then the aliens win. 16:00.980 --> 16:10.100 As long as we have greater than zero aliens left so we're not going to. 16:10.470 --> 16:13.500 This isn't going to matter for a while. 16:13.530 --> 16:20.830 In fact we're not going to make the aliens for a little while but just for future reference. 16:22.110 --> 16:25.210 So keep all that stuff there. 16:26.960 --> 16:37.310 So the next thing is what else have done the alien swarm the shields and the alien bomb and the Sishen 16:37.310 --> 16:44.370 the missile you need UFO you need game you need scores and stuff. 16:45.250 --> 16:48.160 So what do the alien ufo 16:51.400 --> 16:53.120 should be pretty simple. 16:53.190 --> 16:56.910 Is this is going to be the hardest one the aliens worm. 16:57.130 --> 16:57.560 But 17:00.470 --> 17:02.700 are sorry not score of 17:06.460 --> 17:14.660 so he said for his position. 17:15.510 --> 17:24.210 It has it's size this and has the number of points that are awarded to it. 17:24.360 --> 17:24.990 OK. 17:25.030 --> 17:30.760 And this is from 50 to 200. 17:35.800 --> 17:41.570 The next thing we need is score. 17:41.890 --> 17:43.040 Score. 17:44.720 --> 17:51.250 And we have speed score value called SCORE. 17:51.250 --> 18:02.070 And we also need names or give me the string incorporate or where you see C++ strings on string. 18:02.110 --> 18:10.770 This and later we're granted vector high score table and so there. 18:10.810 --> 18:18.160 So we need the string and notice I'm using. 18:18.190 --> 18:23.640 Conan Conan because we're not using the namespace SDD we need to use. 18:23.680 --> 18:27.660 We need to always do this before. 18:27.730 --> 18:28.210 So 18:32.350 --> 18:38.770 that because you're not saying using 18:41.210 --> 18:52.170 space standard that they in this file. 18:52.410 --> 18:56.220 So we have the score and we're also going to need the high score table 18:58.700 --> 19:00.160 score table 19:02.690 --> 19:06.210 in to use a vector. 19:06.290 --> 19:13.960 It also needs the SDD call in calling for that same reason and it can be a vector of scores 19:16.360 --> 19:17.400 that go. 19:17.990 --> 19:20.240 It's simple. 19:20.910 --> 19:22.230 We just need the game 19:24.680 --> 19:35.170 so game C struct game like this it's going to need the game state. 19:35.240 --> 19:36.060 Right. 19:36.290 --> 19:37.470 Go up here. 19:37.490 --> 19:44.230 He said the game state so we're going to need it. 19:44.510 --> 19:53.720 And then you come up here for the game state and what are the states. 19:54.190 --> 19:59.030 So you know you see it this 20:05.180 --> 20:09.080 was like to have a prefix for my IEMs. 20:09.780 --> 20:16.560 So the game state should be well is going to be the intro screen and we think that the first screen 20:16.560 --> 20:23.730 you see later we're going to have the high score table 20:26.430 --> 20:34.280 in we're going have a game state for just playing the game and we're going to have a state for 20:37.550 --> 20:38.370 player 20:40.980 --> 20:49.410 is exploding our players dead I guess because once if there if the players hit then we kind of want 20:49.410 --> 20:50.310 to pause the game. 20:50.310 --> 20:59.680 He said the above before I pause the game and then they have to hit another key or something to restart 20:59.680 --> 21:00.280 the game. 21:00.280 --> 21:03.610 So Steve for that as well. 21:03.720 --> 21:07.840 And we're going to need a game overstate ch 21:11.250 --> 21:21.070 in one of the things we may want is a game state for waiting for the game maybe to restart itself or 21:21.070 --> 21:21.900 something. 21:22.000 --> 21:29.650 Just so like if you press that button you don't have to go directly in we can't go to a waiting state 21:29.680 --> 21:34.100 first for a couple seconds and then kind of start something. 21:35.350 --> 21:36.800 We'll see. 21:37.540 --> 21:38.820 This might change. 21:39.010 --> 21:39.520 We'll see. 21:41.240 --> 21:54.600 So we're going to need game state and the current state we're in its current state this is going to 21:54.600 --> 21:55.560 need the level 21:59.330 --> 22:09.980 that we're going to need the size size pier size for the window size just to keep track of that 22:14.340 --> 22:20.160 and it's think for now that you carry 22:22.750 --> 22:27.580 so we just leave it like this for. 22:27.870 --> 22:32.390 There's still some things that again we haven't really gone over. 22:32.490 --> 22:37.200 But all this will start making sense when we actually start using everything we're going to start with 22:37.380 --> 22:40.320 Lehre first. 22:40.380 --> 22:47.790 And like I said before we're not going to do a traditional top down design for this. 22:48.000 --> 22:54.880 We're going to kind of break off pieces based off the data that we need. 22:54.880 --> 22:57.640 So for example part of it is player. 22:57.650 --> 22:58.590 Right. 22:58.810 --> 23:02.770 And so we're going to use this player and we're going to 23:05.620 --> 23:14.120 actually just implement this and see how far we can get and then kind of add some add staff as we go. 23:14.320 --> 23:15.480 OK. 23:15.670 --> 23:21.690 So one thing I kind of want is the actual maximum of lives. 23:25.320 --> 23:27.670 It's read that at some point. 23:27.810 --> 23:31.110 OK just for just for this. 23:31.400 --> 23:38.880 So that's kind of it for the data at least for the day definitions for now and the next lecture. 23:38.900 --> 23:43.630 I want to go over kind of setting up the game. 23:43.640 --> 23:49.910 All the kind of basic functions we're going we're going to need and then we're going to start doing 23:50.330 --> 23:51.140 the player stuff.