Adding a Ground - OpenGL with PyOpenGL Python and PyGame - 7

Key Takeaways

everybody what's going on welcome to the seventh PI OpenGL tutorial video in this video what we doing is I'm just going to show you guys how you could add a ground if you wanted so so like I was saying before one of the ways that we can stop a player from maybe going outside of the bounds that we're creating cubes is by having walls and one of those things would be maybe a ground you could really eliminate the idea of walls entirely and just create a single plane on the ground and eventually the plane has an edge and if the player goes over the edge they die and then you can take away the ability to move up and down and then we would put all the cubes on the ground and then you would just avoid the cubes still being 3d but you would just avoid the cubes moving like left or right so that's what I'm going to show you guys now it's how might we do that so first of all if you we can take this Y value change and for now let's just say it's zero and then we'll just comment out so under the set vertices function so now let's go ahead and save and run that just just to see where we are so you guys understand what we just did okay so now all the cubes basically come up right there now we're in theory kind of below these cubes so that's not ideal so instead of value change let's see was worth zero let's say if we put these two say a negative one let's try that like I thought that's where we were anyways okay so now they're like on level with us right and so in theory we could just add a ground and we could be like okay we're avoiding these cubes here okay so now let's go ahead and okay there and now it's good let's let's actually make a ground so how would we how would we make you know this floor well it sounds may be confusing but it's really not so if we think about how did we make the edge of the cube well we specified vertex vertex vertex vertex and we filled it in and that was it that's all you have to do so we can do the exact same thing for a ground so for example we can come here and we can say a ground this isn't totally necessary but we'll basically copy what we did for surfaces and edges I mean my there we go so what we could do is something like ground and in fact we're doing two ground surfaces actually we'll do ground vertices and ground vertices will equal a tuple and the tuple will be containing a bunch of tuples and for example we know that our X what our x and y well we want to have X&Y be first of all the ground we want it to be like slightly under so we'll say Y value change minus 1 let's make it a zero for now anyway or negative I'll have to test a few things I'm having trouble having trouble visualizing this but anyway you would have negative 10 to 10 on the X right the X should be negative 10 to 10 y should not change at all and then Z would be you know really far back in our case max distance basically so so what we could do is ground vertices a equals and then we would say negative negative 10 negative 0.1 just slightly under I think will work and then we don't want it to just be like really short so are really short rather so we want that ground to start at some point for now we'll just we'll have it start at the 20 and then let's just basically take this copy come down here paste now now this will be positive 10 right so these are the starting points and then now really deep we are going to have again the exact same because this is the ground so that's one two and then we got three and four and this would be negative ten and ten there and then instead of twenty let's do negative 300 and then negative 300 okay then what we need to do is we'll make a ground function so we'll define round it'll be empty parameters and then we'll just do a simple GL begin if you don't recall we use GL quads before to fill in and then we'll just say X actually let's do not like that so we're gonna say for vertex in ground underscore vertices oh my goodness I just want to spell misspell vs. as much as possible for vertex and ground vertices what do we want to do let's we can color it first so we'll do GL color three FV and then in here you put the color tuple so let's let's color it zero zero point five and then zero point five okay and just take note this is a tuple right it's a tuple as the parameter next we'll do GL vertex three FV and then the actual vertex okay then then we're all done GL end and that's it so now we've got ground and then basically we can just come down to our loop here and we'll draw the ground let's go ahead and draw the ground first so we don't have the ground being drawn over the cubes in the distance so we'll do ground and then we draw the cubes so let's go ahead and run that and see what happens okay so we have our ground there we're on the ground we see our cubes uh the ground definitely just this is really messing with me visually here but the ground definitely you can see it does have edges to it and stuff and we ran out of cubes with the ground is a little I think it was too high so we could lower the a little bit Stu negative will make this negative one actually let's make it negative one point one just do that let's come down on these though alright that's that's better so now that appears like we have a ground we do have an edge there and we can work with this and so you can use this to make you know the ground the walls and obviously we go above and below but it's just a little flat planes like right now we don't have any rules that stop us from doing anything but anyway you can imagine that you could add some rules there so while I don't intend to make this game and have walls or grounds or anything like that I did want to show like how you could do it so if you're making like a racing game you know you're gonna have a street and you're gonna have the car on the street and then you would you know have it going off into the distance or something and so that's how you could do that so anyways that's it for this video I just wanted to show real quick video how you could add a ground if you wanted I'm going to go ahead and not have a ground them and just copy their comment this out and then come down here and comment this one out and then finally come out the last one up at the top wherever it is I can't even find oh hey this is what we need to do yeah that should give us back a good starting position with random cubes right okay so anyways that's it for this video the next video will be continuing on and my idea of having infinite range so sticks you for that if you guys have any questions or comments on this video please feel free to leave them below otherwise as always thanks for watching