Python Pygame Tutorial - Episode 6! Creating Restart Code and Previous Run and High Score Tracking!

hello and welcome back to the channel uh today's video will be episode six in our intro to pie game series uh with python and um if you haven't seen the videos leading up to this video we will be starting with the code we've created so far so if you'd like to follow along then i recommend going back and checking those out otherwise if you're just here for the concepts covered in this video then you know feel free to ask any questions in the comments but understand that there's a lot of code already existing today so a quick recap of what we've already built we have a bouncing ball that you try to avoid as the player in the orange rectangle and we have game over conditions where the player and the ball stop moving when they collide but what we haven't done yet is handled restart conditions or any kind of like high score tracking or keeping track of the history so we're going to take a look at doing some of that today and without further ado let's get into it so first thing we're going to do is we're going to create a bit to actually track whether or not game over has occurred and so we're going to create a boolean variable game over and obviously to initialize it up at the beginning of the game we're going to say it's false and then once we have collision which is when game over runs we're going to go ahead and say this is when game over becomes true and this is actually gonna become pretty relevant because we're going to add um some controls that can restart the game but only if game over is true so this does mean we're going to want to pass in the global game over variable so that way this is referring to the uh overarching one and then we're going to add some instruction that's only up when game over is being called that tells them to uh how to restart the game and so i'm going to make this smaller it doesn't need to be the same huge sizes doesn't need to be the same huge size as game over and i'm going to call this display restart and what we're going to do with this is we're going to tell them hey press let's say space to restart and we'll go ahead and make this white and we're gonna throw this down um we're gonna go ahead and throw this down at like 170 because we're going to be much smaller font but then a little further back because it's longer text okay so or a little further down sorry and then uh press space to restart display restart so um what we're going to do though since that text is only coming up when game over is true we need to actually create the logic so that when you press space um in in this when you release space actually that's when uh game over conditions reset but only if game over is true so we're going to go ahead and put that code in now and we're going to say if event dot key equals pygame dot space and i'm putting this in k space um i'm putting this in the key up condition because to me it makes a little more sense that the game would restart once you've released the space bar not necessarily when you've pushed it down um it would be valid to do it the other way if you want this is how i'm choosing to do it and the other thing we want to do is actually say and game over so we actually want to check that the game over variable is also true and then so in here we need to put all of the code in place to reset the game so does that mean we're going to move circle x and circle y back to their initial positions and we started that guy at the middle of the screen so 300 300 if you remember in game over what we did is we stopped the direction variables for everybody so you weren't able to move we need to go ahead and reinitialize those back to what we gave them which was four and five and then we're going to put our player back where he was as well so 300 it could be a girl it's just a rectangle but so player x 300 player y 500 and then um let's go ahead and reset the score back to zero and let's make the game over variable false again so this really should act as a full restart let's go ahead and see how we look if we've got that done so let's try to get hit here oh what have i done 153 check collisions now that should all be okay 46 oh okay we're gonna have to name our game over variable something else we've already used game over with a space underscore we'll get rid of the underscore that should solve our problems so tried to create a try to create a variable oops that one needs to try to create a variable with the same name as a function that's going to give you all kinds of issues so that should take care of that let's go ahead and run that again take a look here let's go get hit okay now i'm gonna try pressing space to restart we see we've got score four the position's out of whack and well i'm pressing space and i'm not getting anything so let's get into the troubleshooting so game over starts out false check for collision collision game over ah forgot one underscore there we go that can be frustrating all right here we go all right train space there we go so the player resets it doesn't put you in an impossible position to get out of the ball resets your score resets so that's pretty cool one more thing i'd like to add in this video is let's actually keep track of the previous score and your high score for this play through because as of now you press space and it's really like restarting there's no way of knowing if you did better if you did worse if if you're getting any better so let's go ahead and do a little bit of this tracking this is actually pretty easy we're just going to go down to the game over stuff and we will go ahead and say actually let's go up into our variables and define a couple new ones so we're gonna right where we put score here we go let's add two new variables that we're going to use for this and we'll say previous score and set equal zero and let's make a high score and set equals zero okay and that's just so after um the game resets we're going to do a few things so no matter what in game over we're going to go ahead and before we change the score to zero we're gonna say previous score equals score and then what we'll say in here is if score is greater than high score then let's make our high score equal to score and then we clear out the score so what we just did is we made the last run equal to whatever when we reset whatever we just scored and then if our score is greater than the highest score we've had then it'll overwrite it but only if it's a new high so now we just have to copy our display score um code and make a few new ones for display let's say previous score and display high score we'll we'll call it and uh i'm gonna update that in both places and let's move them down the screen by 20 pixels so they should be pretty tightly packed in the top left corner um display high score and now let's change the text to say high score and make that a string of our variable high score and then this string will say last score previous is kind of a long word and we will say previous score for the variable and i did that kind of quickly i don't want this to chew up too much time but let's see now if we have a previous score and a high score tracker okay so we're counting two three four all right now when i press space both last score and high score should update to five and score should go to zero all right so let's try getting something that's not a high score we got three so last score should update to three but the five should maintain and it does so that's pretty cool that's how you handle restart conditions you know clearing out all of your variables and resetting them to starting positions as well as keeping track of a last score and a high score and things like that so still to come we'll be doing some difficulty increases because for now you're just gonna have kind of a slow moving ball forever and obviously this is kind of a boring game it's not too challenging you could probably pretty easily rack up a high score but you'd be real bored with it real fast so in the future videos we'll work on increasing difficulty as well as potentially taking a look at like some player boosts and speed upgrades things like that uh so for now hope you enjoyed this video found it useful and kind of fun and if you have any questions or things you'd like to see in the future feel free to let me know in the comments below and you found this or any of the content on the channel useful i really appreciate uh liking a subscribe helps channel out a lot and as always thanks for watching and good luck with your code thanks bye