1 00:00:00,120 --> 00:00:02,969 Hey, you've reached the final project, 2 00:00:02,969 --> 00:00:07,740 and as you've seen at the beginning of today's lessons, 3 00:00:07,740 --> 00:00:09,600 I showed you what we're going to be making 4 00:00:09,600 --> 00:00:12,750 which is a sort of choose your own adventure game. 5 00:00:12,750 --> 00:00:14,070 I don't know if you've ever read those, 6 00:00:14,070 --> 00:00:15,570 Choose Your Own Adventure books 7 00:00:15,570 --> 00:00:17,570 where you flip to a different page 8 00:00:17,570 --> 00:00:20,190 if you make a particular choice 9 00:00:20,190 --> 00:00:24,540 and then the story kind of evolves as you make your choices. 10 00:00:24,540 --> 00:00:27,420 Now we're going to make a very simple version of that 11 00:00:27,420 --> 00:00:30,090 using what we've learned about conditionals, 12 00:00:30,090 --> 00:00:32,280 if, else, elif statements 13 00:00:32,280 --> 00:00:34,800 as well as everything we've done previously. 14 00:00:34,800 --> 00:00:37,530 So you've already seen what the final outcome 15 00:00:37,530 --> 00:00:40,320 should look like and if you want ot review it again, 16 00:00:40,320 --> 00:00:44,940 just head over to treasure-island-end.appbrewery.repl.run, 17 00:00:44,940 --> 00:00:48,780 and here you'll see essentially the game in action. 18 00:00:48,780 --> 00:00:52,350 So it starts off asking you, "You're at a crossroad, 19 00:00:52,350 --> 00:00:54,030 do you want to go left or right?" 20 00:00:54,030 --> 00:00:57,150 And then you have to type your choice. 21 00:00:57,150 --> 00:00:59,100 If you selected left, 22 00:00:59,100 --> 00:01:01,346 then it's going to take you to a lake 23 00:01:01,346 --> 00:01:04,530 and it asks you whether if you want towait for a boat 24 00:01:04,530 --> 00:01:05,760 or swim across. 25 00:01:05,760 --> 00:01:08,970 So let's go ahead and "wait for a boat". 26 00:01:08,970 --> 00:01:11,790 And then the final step is it asks you, 27 00:01:11,790 --> 00:01:13,530 which door would you like to go through 28 00:01:13,530 --> 00:01:15,720 red, yellow, or blue? 29 00:01:15,720 --> 00:01:17,310 Now depending on your choice, 30 00:01:17,310 --> 00:01:18,930 you'll either end up with game over 31 00:01:18,930 --> 00:01:22,890 or you'll end up with winning the game. 32 00:01:22,890 --> 00:01:27,030 So the basic setup for this game looks something like this. 33 00:01:27,030 --> 00:01:30,960 And I've included a link to this flowchart 34 00:01:30,960 --> 00:01:33,060 in the starting Repl. 35 00:01:33,060 --> 00:01:37,380 So replit/appbrewery/treasure-island-start, 36 00:01:37,380 --> 00:01:39,180 and of course you'll find all the links 37 00:01:39,180 --> 00:01:41,610 in the course resources as always. 38 00:01:41,610 --> 00:01:43,680 But if you scroll down, there's a link right here 39 00:01:43,680 --> 00:01:45,630 that takes you to this flowchart. 40 00:01:45,630 --> 00:01:48,660 Now, the first question you're going to ask the user 41 00:01:48,660 --> 00:01:51,190 is to make a choice between left and right. 42 00:01:51,190 --> 00:01:54,180 Now you can use my wording if you want. 43 00:01:54,180 --> 00:01:55,110 "You're at a crossroad. 44 00:01:55,110 --> 00:01:55,950 Where do you want to go? 45 00:01:55,950 --> 00:01:57,750 Type "left" or type "right"." 46 00:01:57,750 --> 00:02:00,180 But I think the fun part of this challenge 47 00:02:00,180 --> 00:02:02,534 is really creating your own story, right? 48 00:02:02,534 --> 00:02:06,420 But somehow get them to choose between left and right. 49 00:02:06,420 --> 00:02:10,350 If they choose right or any other condition for that matter, 50 00:02:10,350 --> 00:02:13,080 tell them that they've lost, Game Over 51 00:02:13,080 --> 00:02:15,090 for some sort of reason. 52 00:02:15,090 --> 00:02:17,009 In my case, if they had chosen right, 53 00:02:17,009 --> 00:02:20,460 the reason is because they fell into a hole, Game Over. 54 00:02:20,460 --> 00:02:23,100 But I think you are far more imaginative than I am. 55 00:02:23,100 --> 00:02:25,548 So go ahead and use all of those skills 56 00:02:25,548 --> 00:02:27,780 and make your game really fun. 57 00:02:27,780 --> 00:02:30,060 Now, if they've chosen left on the other hand, 58 00:02:30,060 --> 00:02:32,430 then we're going take them to another question 59 00:02:32,430 --> 00:02:33,990 that asks them whether if they want to swim 60 00:02:33,990 --> 00:02:37,560 or whether if they want to wait for a boat. 61 00:02:37,560 --> 00:02:41,550 And if they swam, then it's going to be some form of Game Over. 62 00:02:41,550 --> 00:02:44,341 There's crocodiles, there's whatever it may be, 63 00:02:44,341 --> 00:02:46,920 but they can't continue. 64 00:02:46,920 --> 00:02:49,320 But if they chose wait, then we take them to the third 65 00:02:49,320 --> 00:02:51,570 and final question which asks them to choose 66 00:02:51,570 --> 00:02:53,070 between three doors. 67 00:02:53,070 --> 00:02:54,810 And if they choose any door 68 00:02:54,810 --> 00:02:57,510 other than the yellow door, then they would lose, 69 00:02:57,510 --> 00:03:00,720 but if they chose the yellow door, then they somehow win. 70 00:03:00,720 --> 00:03:03,450 Now notice how each of these just says Game over, 71 00:03:03,450 --> 00:03:05,040 Game over, left or right, 72 00:03:05,040 --> 00:03:07,527 but you know, the idea is really to use your creativity 73 00:03:07,527 --> 00:03:10,800 and make this game really your own. 74 00:03:10,800 --> 00:03:11,970 Now one thing to remember though 75 00:03:11,970 --> 00:03:14,395 is that when the user types in an answer, 76 00:03:14,395 --> 00:03:16,770 let's say left or right, 77 00:03:16,770 --> 00:03:20,077 they might type it like this with an uppercase R 78 00:03:20,077 --> 00:03:23,220 or they might type it like this all lowercase. 79 00:03:23,220 --> 00:03:25,410 Have a think about how you might make sure 80 00:03:25,410 --> 00:03:27,360 that no matter which version they typed, 81 00:03:27,360 --> 00:03:29,620 you are still going to be able to catch 82 00:03:29,620 --> 00:03:32,190 their command essentially. 83 00:03:32,190 --> 00:03:33,023 So have a think about 84 00:03:33,023 --> 00:03:35,070 what you've learned in the previous lessons 85 00:03:35,070 --> 00:03:37,920 and take a look at this flowchart 86 00:03:37,920 --> 00:03:41,310 then head over to the Starting Project 87 00:03:41,310 --> 00:03:44,010 and you can get started writing your code. 88 00:03:44,010 --> 00:03:45,390 Now if you head over here 89 00:03:45,390 --> 00:03:48,240 and what you see is sort of like a mumbo jumbo 90 00:03:48,240 --> 00:03:49,770 bunch of characters, 91 00:03:49,770 --> 00:03:52,920 then the reason is probably because there's not enough space 92 00:03:52,920 --> 00:03:57,000 for this ASCII art of a Treasure Chest to display. 93 00:03:57,000 --> 00:03:58,860 So you can either do, as I did, 94 00:03:58,860 --> 00:04:01,567 reduce the size of the console 95 00:04:01,567 --> 00:04:04,260 or alternatively and probably easier 96 00:04:04,260 --> 00:04:06,360 is to change the layout to stacked, 97 00:04:06,360 --> 00:04:09,412 make it go at the bottom, collapse this left hand pane, 98 00:04:09,412 --> 00:04:14,013 and then you've got as much space as you have to work with. 99 00:04:15,240 --> 00:04:16,950 Now ASCII art is really cool, 100 00:04:16,950 --> 00:04:18,870 because it basically just uses 101 00:04:18,870 --> 00:04:20,910 a bunch of characters that you know and love 102 00:04:20,910 --> 00:04:23,220 like the comma and the equal sign 103 00:04:23,220 --> 00:04:27,663 and all of these things that together make up a picture. 104 00:04:28,590 --> 00:04:30,285 And you can find your own ASCII art 105 00:04:30,285 --> 00:04:34,500 if you just go to ascii.co.uk/art 106 00:04:34,500 --> 00:04:36,910 and you'll see a whole bunch of different topics 107 00:04:36,910 --> 00:04:40,188 and they've grouped a lot of things together 108 00:04:40,188 --> 00:04:42,270 into individual pages. 109 00:04:42,270 --> 00:04:44,610 So if you wanted a rhino ASCII art, 110 00:04:44,610 --> 00:04:47,220 then you can find a whole bunch of rhinos 111 00:04:47,220 --> 00:04:49,110 that people have drawn. 112 00:04:49,110 --> 00:04:51,780 But the easiest way is of course using Command + F 113 00:04:51,780 --> 00:04:52,613 if you're on a Mac 114 00:04:52,613 --> 00:04:55,350 or Ctrl + F if you're on a Windows machine, 115 00:04:55,350 --> 00:04:57,450 and then just search for the thing that you want. 116 00:04:57,450 --> 00:05:00,750 So for example, I went and searched for treasure, 117 00:05:00,750 --> 00:05:04,470 and down here I found this brilliant Treasure Box 118 00:05:04,470 --> 00:05:06,930 in ASCII art, which is what I'm using 119 00:05:06,930 --> 00:05:10,350 to print inside this print statement. 120 00:05:10,350 --> 00:05:13,121 Now, notice how there's three single quotes (' ' ') 121 00:05:13,121 --> 00:05:14,562 that are at the start 122 00:05:14,562 --> 00:05:17,580 and there's three single quotes (' ' ') at the end. 123 00:05:17,580 --> 00:05:20,040 Basically what the single quotes allow you to do 124 00:05:20,040 --> 00:05:24,540 is to create multiple lines of a string essentially. 125 00:05:24,540 --> 00:05:26,760 So notice how if I go ahead and delete 126 00:05:26,760 --> 00:05:29,280 all of these single quotes 127 00:05:29,280 --> 00:05:33,090 and I only had a set of double quotes, 128 00:05:33,090 --> 00:05:36,003 then it actually doesn't quite work. 129 00:05:37,350 --> 00:05:40,500 It gets quite confused because it thinks 130 00:05:40,500 --> 00:05:43,260 that this is where the line ends, 131 00:05:43,260 --> 00:05:46,260 but in fact, I wanted to print all of this out. 132 00:05:46,260 --> 00:05:49,140 So to do that, instead of using a double quote, 133 00:05:49,140 --> 00:05:51,570 I use three single quotes. 134 00:05:51,570 --> 00:05:53,040 And at the very bottom, 135 00:05:53,040 --> 00:05:56,640 I tell it well this is the end of my multi block string 136 00:05:56,640 --> 00:05:59,280 by using three single quotes as well. 137 00:05:59,280 --> 00:06:00,630 So have a go at running that 138 00:06:00,630 --> 00:06:03,240 and you should be able to see that in your console. 139 00:06:03,240 --> 00:06:06,780 You get this little Treasure Island ASCII art being printed 140 00:06:06,780 --> 00:06:10,170 along with the two sentences that begin the game. 141 00:06:10,170 --> 00:06:12,277 S have a look at the flow chart, 142 00:06:12,277 --> 00:06:15,120 have a play around with the ASCII art, 143 00:06:15,120 --> 00:06:19,170 and also have a look at the final version of the app 144 00:06:19,170 --> 00:06:20,580 so that you can go ahead 145 00:06:20,580 --> 00:06:24,630 and create your own version to complete this challenge. 146 00:06:24,630 --> 00:06:26,580 Pause the video now and give that a go. 147 00:06:30,750 --> 00:06:31,583 All right, so let's see 148 00:06:31,583 --> 00:06:34,290 if we can replicate the functionality 149 00:06:34,290 --> 00:06:37,110 or the logic that's shown in this diagram 150 00:06:37,110 --> 00:06:39,120 into our Treasure Island game. 151 00:06:39,120 --> 00:06:42,750 So the first thing it has to do is we have to ask the user 152 00:06:42,750 --> 00:06:45,090 whether if they want to turn left or right. 153 00:06:45,090 --> 00:06:47,338 And after we ask the user this question, 154 00:06:47,338 --> 00:06:51,540 we're going to want to capture their input, right? 155 00:06:51,540 --> 00:06:52,410 So let's go ahead 156 00:06:52,410 --> 00:06:56,823 and create an input() function and ask our question. 157 00:07:00,570 --> 00:07:05,520 Now notice how when I use my double quotes around my string, 158 00:07:05,520 --> 00:07:08,370 the double quotes that are inside the double quotes 159 00:07:08,370 --> 00:07:12,210 are interpreted as code because it actually thinks that 160 00:07:12,210 --> 00:07:15,180 this is the end of the first string, 161 00:07:15,180 --> 00:07:18,090 this is the second string, and this is the final string. 162 00:07:18,090 --> 00:07:20,550 This is how the computer is going see it. 163 00:07:20,550 --> 00:07:22,980 Now previously you saw that we could do the trick 164 00:07:22,980 --> 00:07:27,090 where we change this to single quotes instead. 165 00:07:27,090 --> 00:07:29,728 But if like me, you have this case 166 00:07:29,728 --> 00:07:34,350 where you have the "You're" with the apostrophe, 167 00:07:34,350 --> 00:07:35,910 then it's going to think 168 00:07:35,910 --> 00:07:38,430 that this is actually the end of the first string 169 00:07:38,430 --> 00:07:41,220 this is the second string and this is the third string. 170 00:07:41,220 --> 00:07:43,800 So this doesn't actually really help us. 171 00:07:43,800 --> 00:07:47,400 Now all we can do when we want to tell our computer 172 00:07:47,400 --> 00:07:49,890 that what I'm writing is actually not code 173 00:07:49,890 --> 00:07:52,350 just see it as text. 174 00:07:52,350 --> 00:07:55,590 You can get it to ignore a symbol afterwards 175 00:07:55,590 --> 00:07:57,930 by using the backslash (\). 176 00:07:57,930 --> 00:08:01,860 So this way it basically escapes this string 177 00:08:01,860 --> 00:08:04,290 and it will see it as text. 178 00:08:04,290 --> 00:08:07,938 And now we have a complete string like this 179 00:08:07,938 --> 00:08:10,950 and this is just going to be interpreted as text 180 00:08:10,950 --> 00:08:13,710 because we told it to with the backslash. 181 00:08:13,710 --> 00:08:15,060 Now of course there's other ways 182 00:08:15,060 --> 00:08:16,320 that you could have gone around this. 183 00:08:16,320 --> 00:08:18,120 You could have just simply said 184 00:08:18,120 --> 00:08:22,710 "You are at a crossroad..." rather than using the apostrophe, 185 00:08:22,710 --> 00:08:23,760 but more often than not, 186 00:08:23,760 --> 00:08:26,340 you'll need to use a symbol that you'll need to escape 187 00:08:26,340 --> 00:08:27,960 and you can do that with the backslash. 188 00:08:27,960 --> 00:08:29,850 So that's just a quick tip. 189 00:08:29,850 --> 00:08:30,750 Now at this point, 190 00:08:30,750 --> 00:08:34,799 the user is going to type a message left or right. 191 00:08:34,799 --> 00:08:37,631 So let's go ahead and save that to a variable. 192 00:08:37,631 --> 00:08:40,740 Let's call it choice1 equals their input. 193 00:08:40,740 --> 00:08:43,380 Now remember how I said they could be typing the answer 194 00:08:43,380 --> 00:08:45,660 as "Right" or as "right". 195 00:08:45,660 --> 00:08:49,290 So how can we make sure that when we are doing our checks 196 00:08:49,290 --> 00:08:52,920 using the if statement we ignore the casing? 197 00:08:52,920 --> 00:08:55,012 Well, one way of doing this is we can simply 198 00:08:55,012 --> 00:08:59,070 use the "lower() function" to change their input 199 00:08:59,070 --> 00:09:02,520 no matter how they wrote it, Right, right, or RIGHT, 200 00:09:02,520 --> 00:09:07,350 it should all be converted into lowercase to this version. 201 00:09:07,350 --> 00:09:08,585 That way we have one thing 202 00:09:08,585 --> 00:09:12,180 that we can consistently check for in our if statement, 203 00:09:12,180 --> 00:09:13,500 which is coming up next. 204 00:09:13,500 --> 00:09:17,756 So we can say if choice1 ==, remember 205 00:09:17,756 --> 00:09:20,294 the double equals is checking 206 00:09:20,294 --> 00:09:23,220 whether if left hand side and right hand side is equal 207 00:09:23,220 --> 00:09:27,210 and the single equal sign is assigning the right hand side 208 00:09:27,210 --> 00:09:29,790 to this particular variable name. 209 00:09:29,790 --> 00:09:33,300 Now if choice1 equals the string right, 210 00:09:33,300 --> 00:09:36,390 then it's pretty much Game Over for our player. 211 00:09:36,390 --> 00:09:39,210 So let's go ahead and add our colon 212 00:09:39,210 --> 00:09:43,860 and print something like Game Over. 213 00:09:43,860 --> 00:09:45,960 Of course we can elaborate this a little bit more 214 00:09:45,960 --> 00:09:47,790 as to why was it Game Over. 215 00:09:47,790 --> 00:09:52,020 "Well, because you fell into a hole." 216 00:09:52,020 --> 00:09:54,933 This is like the ET game from the '80s. 217 00:09:55,830 --> 00:09:57,037 Lots of holes. 218 00:09:57,037 --> 00:10:00,813 So, "You fell into a hole. Game Over." 219 00:10:00,813 --> 00:10:05,550 But what if they had chosen left instead? 220 00:10:05,550 --> 00:10:08,130 Well, that takes them on to the next question. 221 00:10:08,130 --> 00:10:11,250 So that's the option that will allow them to continue 222 00:10:11,250 --> 00:10:12,213 along the game. 223 00:10:13,410 --> 00:10:17,100 Now in this case, we could use an else statement and say, 224 00:10:17,100 --> 00:10:18,750 well if they didn't choose right, 225 00:10:18,750 --> 00:10:21,330 then they probably chose left, right? 226 00:10:21,330 --> 00:10:23,910 But they could have also chosen like an option 227 00:10:23,910 --> 00:10:25,560 that was completely not listed. 228 00:10:25,560 --> 00:10:28,320 They could have just written something like this 229 00:10:28,320 --> 00:10:31,410 and it would still trigger the else statement. 230 00:10:31,410 --> 00:10:36,240 So what we should actually do is to switch it around. 231 00:10:36,240 --> 00:10:41,240 So namely we should say, if choice1 == "left": 232 00:10:43,140 --> 00:10:48,140 well in that case, then they continue you in the game. 233 00:10:48,870 --> 00:10:52,980 But otherwise, namely if they chose "right" 234 00:10:52,980 --> 00:10:55,140 or anything else for that matter, 235 00:10:55,140 --> 00:10:57,360 then it's pretty much Game Over. 236 00:10:57,360 --> 00:10:59,520 So this format makes a lot more sense 237 00:10:59,520 --> 00:11:01,110 if you want to continue 238 00:11:01,110 --> 00:11:04,800 along the left side of the branch, this way. 239 00:11:04,800 --> 00:11:07,290 Now another thing that you might have realized 240 00:11:07,290 --> 00:11:10,860 because we learned about combining different conditions 241 00:11:10,860 --> 00:11:13,980 is instead of using the .lower() 242 00:11:13,980 --> 00:11:16,650 to change the input to lowercase, 243 00:11:16,650 --> 00:11:20,310 you could have also said if choice == "left" 244 00:11:20,310 --> 00:11:25,310 or if choice1 == "Left": spelt like this, 245 00:11:25,500 --> 00:11:26,996 that will both work. 246 00:11:26,996 --> 00:11:31,526 But I think in terms of succinctness and less code writing, 247 00:11:31,526 --> 00:11:35,250 I think this makes a lot more sense to me. 248 00:11:35,250 --> 00:11:37,440 So I'm going to continue with this version. 249 00:11:37,440 --> 00:11:38,940 But if you did it the other way, 250 00:11:38,940 --> 00:11:40,923 that's perfectly valid as well. 251 00:11:41,820 --> 00:11:44,400 Now if their choice1 was left, 252 00:11:44,400 --> 00:11:46,560 then they get taken to the next question. 253 00:11:46,560 --> 00:11:48,510 Do you want to swim or do you want to wait? 254 00:11:49,410 --> 00:11:51,450 So let's go ahead and continue the game 255 00:11:51,450 --> 00:11:55,230 and create another input. 256 00:11:55,230 --> 00:11:58,260 In this input we're going to ask them a question 257 00:11:58,260 --> 00:12:01,830 and say, "You've come to a lake. 258 00:12:01,830 --> 00:12:06,330 There is an island in the middle of the lake. 259 00:12:06,330 --> 00:12:11,100 Type "wait" to wait for a boat. 260 00:12:11,100 --> 00:12:15,990 Type "swim" to swim across. 261 00:12:15,990 --> 00:12:18,630 Cool, so we've actually got the same problem 262 00:12:18,630 --> 00:12:23,610 as we had before, namely that this is being interpreted 263 00:12:23,610 --> 00:12:28,380 as code rather than as a continuous single string. 264 00:12:28,380 --> 00:12:31,080 So do you remember how we fixed this previously? 265 00:12:31,080 --> 00:12:32,940 And if you got stuck on this, 266 00:12:32,940 --> 00:12:34,920 I recommend having a go at this yourself 267 00:12:34,920 --> 00:12:36,423 before I show you the answer. 268 00:12:37,913 --> 00:12:40,650 All right, so previously we said we were going to switch it 269 00:12:40,650 --> 00:12:42,690 to single quotes instead 270 00:12:42,690 --> 00:12:46,110 so that these double quotes become interpreted 271 00:12:46,110 --> 00:12:48,420 as just normal strings. 272 00:12:48,420 --> 00:12:50,940 But of course we've got this "You've," 273 00:12:50,940 --> 00:12:54,870 we could of course change it to "you have" instead of you've, 274 00:12:54,870 --> 00:12:58,500 but if we want to escape the string, we just add a \ 275 00:12:58,500 --> 00:13:01,590 and now everything is colored in this sort of pinkish color 276 00:13:01,590 --> 00:13:04,980 to indicate it's all interpreted as a string, 277 00:13:04,980 --> 00:13:07,053 which is exactly what we did previously. 278 00:13:07,950 --> 00:13:09,540 Now in terms of this input, 279 00:13:09,540 --> 00:13:12,390 they're going to type "wait" or they're going to type "swim". 280 00:13:12,390 --> 00:13:15,810 So let's go ahead and lower the casing for it as well, 281 00:13:15,810 --> 00:13:18,990 and then we're going to save it inside a choice. 282 00:13:18,990 --> 00:13:21,000 We're going to say choice2. 283 00:13:21,000 --> 00:13:25,470 Now be really careful and mindful of your indentation, 284 00:13:25,470 --> 00:13:28,020 because if you wrote it like this, 285 00:13:28,020 --> 00:13:31,170 then it's going to be creating some errors for you 286 00:13:31,170 --> 00:13:34,530 because this choice2 input line 287 00:13:34,530 --> 00:13:38,043 has to run when this choice1 is equal to left, 288 00:13:39,030 --> 00:13:42,120 otherwise we're going to get an indentation error. 289 00:13:42,120 --> 00:13:44,790 So let's go ahead and indent it here 290 00:13:44,790 --> 00:13:48,810 to show that this part is inside this if statement 291 00:13:48,810 --> 00:13:52,770 and will only be executed if this is true. 292 00:13:52,770 --> 00:13:55,800 And then we get to check our choice2. 293 00:13:55,800 --> 00:13:59,640 So, if choice2 == "wait": , 294 00:14:01,020 --> 00:14:03,993 then it means that the game will continue, 295 00:14:06,210 --> 00:14:09,930 but else, so if they typed swim 296 00:14:09,930 --> 00:14:12,180 or anything else for that matter, 297 00:14:12,180 --> 00:14:13,800 then the game is going to end. 298 00:14:13,800 --> 00:14:15,030 So we're going to print 299 00:14:15,030 --> 00:14:17,370 and tell them that something terrible happened, 300 00:14:17,370 --> 00:14:22,173 "You got attacked by an angry trout. 301 00:14:24,420 --> 00:14:25,253 Game Over." 302 00:14:26,220 --> 00:14:28,272 Now we can continue along this path. 303 00:14:28,272 --> 00:14:30,045 So we're down to here now. 304 00:14:30,045 --> 00:14:32,850 And the final question we're going to ask the user 305 00:14:32,850 --> 00:14:36,150 is which door do they want to choose? 306 00:14:36,150 --> 00:14:38,376 So here I'm going to use an input() 307 00:14:38,376 --> 00:14:40,830 to send them the message 308 00:14:40,830 --> 00:14:43,260 that, "You arrive at the island unharmed. 309 00:14:43,260 --> 00:14:44,610 There is a house with three doors. 310 00:14:44,610 --> 00:14:46,500 One red, one yellow, one blue. 311 00:14:46,500 --> 00:14:48,750 Which color do you choose?" 312 00:14:48,750 --> 00:14:51,450 Now I'm going to save their choice 313 00:14:51,450 --> 00:14:54,420 inside a variable called choice3, 314 00:14:54,420 --> 00:14:58,560 lowercase the answer that they provided. 315 00:14:58,560 --> 00:15:01,740 And finally I'm going to use if, elif, and else 316 00:15:01,740 --> 00:15:03,930 to check which one they chose. 317 00:15:03,930 --> 00:15:08,930 So if choice3 == "red": 318 00:15:10,380 --> 00:15:15,003 elif choice3 == yellow, 319 00:15:18,060 --> 00:15:22,263 elif choice3 is equal to blue. 320 00:15:23,310 --> 00:15:25,680 And then I've got an else. 321 00:15:25,680 --> 00:15:28,500 So here are four possible things that could happen. 322 00:15:28,500 --> 00:15:31,770 If they chose red, then I'm going tell them 323 00:15:31,770 --> 00:15:33,900 that it's Game Over, 324 00:15:33,900 --> 00:15:36,240 but it's going to be some sort of creative 325 00:15:36,240 --> 00:15:37,620 version of Game Over. 326 00:15:37,620 --> 00:15:41,460 So maybe something like, "It's a room full of fire. 327 00:15:41,460 --> 00:15:42,840 Game Over." 328 00:15:42,840 --> 00:15:46,500 If they chose yellow on the other hand, 329 00:15:46,500 --> 00:15:49,170 well that's going to be the room where the treasure exists. 330 00:15:49,170 --> 00:15:51,750 So I'm going to print, "You found the treasure! 331 00:15:51,750 --> 00:15:52,890 You Win!" 332 00:15:52,890 --> 00:15:57,450 If they chose blue, they also end up with Game Over 333 00:15:57,450 --> 00:16:00,273 and I have to give them a different reason. 334 00:16:01,110 --> 00:16:02,550 Now if you had decided 335 00:16:02,550 --> 00:16:05,820 that if they chose anything but yellow, 336 00:16:05,820 --> 00:16:09,390 the way that they're going to game over is the same, 337 00:16:09,390 --> 00:16:11,760 say if, you know, if you chose red, 338 00:16:11,760 --> 00:16:12,840 "It's a room full of fire. 339 00:16:12,840 --> 00:16:13,673 Game Over." 340 00:16:13,673 --> 00:16:15,450 If you chose blue, "It's a room full of fire. 341 00:16:15,450 --> 00:16:16,590 Game Over." 342 00:16:16,590 --> 00:16:18,623 Anything else, it's also going to be fire. 343 00:16:18,623 --> 00:16:20,100 Game over. 344 00:16:20,100 --> 00:16:22,800 Well then you could just use if and else, 345 00:16:22,800 --> 00:16:25,770 but if you wanted each choice or each door 346 00:16:25,770 --> 00:16:27,690 to have a different outcome for the user, 347 00:16:27,690 --> 00:16:31,200 say, "The red door has fire. The blue door has beasts." 348 00:16:31,200 --> 00:16:33,420 And if they chose the wrong door, 349 00:16:33,420 --> 00:16:35,420 then they're going to get something like 350 00:16:36,720 --> 00:16:38,370 "You chose a door that doesn't exist. 351 00:16:38,370 --> 00:16:39,510 Game Over." 352 00:16:39,510 --> 00:16:40,620 So can you see that 353 00:16:40,620 --> 00:16:43,329 depending on whether if you want to give the user 354 00:16:43,329 --> 00:16:48,329 a different print statement based on their choice, 355 00:16:48,900 --> 00:16:51,600 then you would use if, elif, else, 356 00:16:51,600 --> 00:16:52,530 but if you actually 357 00:16:52,530 --> 00:16:54,960 just wanted to give them the same feedback, 358 00:16:54,960 --> 00:16:59,208 which is Game Over, then you could just use if and else. 359 00:16:59,208 --> 00:17:03,330 Now let's run our game and just make sure that it works. 360 00:17:03,330 --> 00:17:06,869 So I'm going to go left because I know it continues, 361 00:17:06,869 --> 00:17:10,260 and then I'm going to wait for the boat, 362 00:17:10,260 --> 00:17:13,230 and that allows me to get to the final condition. 363 00:17:13,230 --> 00:17:16,109 And if I choose yellow, I know that I'll win. 364 00:17:16,109 --> 00:17:18,150 Now if you want to change the formatting, 365 00:17:18,150 --> 00:17:21,510 because having the input at the end of the sentence 366 00:17:21,510 --> 00:17:24,060 doesn't look as good as letting the user type it 367 00:17:24,060 --> 00:17:27,480 on a new line like what we've got here, 368 00:17:27,480 --> 00:17:31,860 then you can simply, if you remember, just add the new line 369 00:17:31,860 --> 00:17:36,393 which is \n at the end of your inputs, like so. 370 00:17:38,490 --> 00:17:41,340 So how did you get on with this challenge? 371 00:17:41,340 --> 00:17:43,140 And if you didn't manage to do it right 372 00:17:43,140 --> 00:17:46,980 or if you've done it right, go back and try and modify it. 373 00:17:46,980 --> 00:17:49,530 See if you can add some more conditions 374 00:17:49,530 --> 00:17:52,427 or see if you can make the Game Over messages 375 00:17:52,427 --> 00:17:55,200 a little bit more interesting than what I've written. 376 00:17:55,200 --> 00:17:58,830 See if you can modify and make it really your own. 377 00:17:58,830 --> 00:17:59,910 Have fun with that. 378 00:17:59,910 --> 00:18:01,440 And in the next lesson, 379 00:18:01,440 --> 00:18:03,900 I've got more exciting things coming up for you. 380 00:18:03,900 --> 00:18:06,840 So hopefully you've scheduled some time for tomorrow 381 00:18:06,840 --> 00:18:09,630 to complete the next day's lessons. 382 00:18:09,630 --> 00:18:11,643 But for now, it's goodnight for me.