shaky

[NightOfHorror]

I am making a different version of Pong to kill time, but I used this one code

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if(x>PongBall.x) x-=8;
         else if(x<PongBall.x)x+=7;

to make AI, and it works, but then there is the fact that my actor shakes while moving.

[skydereign]

It's only natural that it would shake. If you think about it, that code will be triggered every frame. Now just say the paddle is pretty much lined up with the ball and the ball's xvelocity is 6, that means every frame the paddle will change direction (jumping back and forth). You can avoid this by making it update its xvelocity twice a second, instead updating its position 30 times a second. Now, two other things. One, I would suggest you use brackets. Since you are still learning the clearer your code is defined, the easier it is for you to find any problems in it. There's a problem called a dangling else, which is just one of several problems you might come across when not using brackets. The other thing is that why would the paddle be able to move faster to the left than to the right?

[NightOfHorror]

I will try this, oh and by the way, I forgot what you said about this, isn't using physical response in script better than going right to it. I

[skydereign]

I suggest using script editor for almost everything. Reason being it allows to to do any number of actions per single event, and it provides a uniform way of changing values.

[NightOfHorror]

wait, how do you update it only two times a second. I am confused.

[Hblade]

use this

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if(x>PongBall.x+2) x-=8;
         else if(x<PongBall.x-2)x+=7;


[skydereign]

use this

Code: Select all

if(x>PongBall.x+2) x-=8;
         else if(x<PongBall.x-2)x+=7;


If you are going to try this, I'd suggest increasing the distance, and you might compress that into one line of code (not that there would be more efficient, just easier since the one thing you want is compressed into one line).

wait, how do you update it only two times a second. I am confused.

You can do this one of two ways. First is to create an actor variable called timer, and do something like this.

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timer++;
if(timer>=15)
{
    // put your movement code here
    timer=0;
}

Notice how it goes until the 15th frame without updating the position, and that that means it updates twice a second. Of course for this method you want to use xvelocity, since moving 8 pixels every half second is a bad way to play pong. The other method, still using xvelocity, is to create a 500ms timer that repeats.

[NightOfHorror]

well, one more question for future reference. One, what does ++ do and two, is there an automatic 30 frames a second in GE?

[NightOfHorror]

last question. Sometimes if I hit the ball, it goes out of the playing area, or it gos in this block that I made in each corner. What is wrong with it. Is it just how I put in physical response. Everything is 1.

[skydereign]

One, what does ++ do

++ increments a variable. So if var is equal to 0, it will increase var by 1. Essentially it is the same thing as doing var+=1; (there is a slight difference though, as it increases the variable after the line is processed).

is there an automatic 30 frames a second in GE?

Not quite sure what you mean. gE sets the game to 30fps by default, but you can change it if you want.

last question. Sometimes if I hit the ball, it goes out of the playing area, or it gos in this block that I made in each corner. What is wrong with it. Is it just how I put in physical response. Everything is 1.

This probably has to do with your ball moving at too high speeds, and causes it to move through the walls. You can usually limit this by either setting a max speed, or by increasing the size of your walls.

[NightOfHorror]

I need it when an actor in the game gets ten points it is destroyed. So if the ball hits its wall it gains a point, but at ten is eliminated from the game. I put in a code that destroys them when they get one point. Why isn't it working.

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If(ColorScore.textNumber>=10);
{
DestroyActor("ColorBall");
}

[skydereign]

First of all, never use textNumber like that. The only time you should use textNumber is when you are setting it equal to a variable.

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textNumber = var;

Several odd problems have occurred from using textNumber differently (probably because of its type). Instead of using textNumber you should use a real variable (one that you create). Now chances are you want to create an actor variable, that is increased when the ball collides with a wall (that way you can have several ball actors on screen). Also in the event, you'd want to check if it is greater than 10, and if so delete itself. Notice that all of that happens in one event, and doesn't have to use textNumber or any other actors.

[Game A Gogo]

I need it when an actor in the game gets ten points it is destroyed. So if the ball hits its wall it gains a point, but at ten is eliminated from the game. I put in a code that destroys them when they get one point. Why isn't it working.

Code: Select all

If(ColorScore.textNumber>=10);
{
DestroyActor("ColorBall");
}

you placed a ";" after your if statement