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How do I get access to a variable in another class?

By TheFischy, with 4 replies.
Last reply by danpost, about 9 years ago:

Super_Hippo wrote...

The ) is missing after the get(0)), another ) has to be added after that. The code was an example what you have to do to get the value of the score field. The line itself doesn't do anything.

Actually, you could say there is an extra ( after (Player) in both given lines that should be removed.

greennotpurpleaki

getOneObjectAtOffset / canSee & eat difference

By greennotpurpleaki, with 1 reply.
Replied to by Super_Hippo, about 9 years ago:

'canSee' and 'eat' are methods from the Animal class. With some version of Greenfoot, the 'isTouching' and 'removeTouching' methods were added to the Actor class which do the same as 'canSee' and 'eat'.

Greenfoot 3.0.0 released

By nccb, with 12 replies.
Last reply by amjad, about 9 years ago:

@Embee: Highlighting errors in stride is already clear, but in the Java editor could be better. I've added two of your suggestions to our tasks' list. Thank you for this and for your nice words about Greenfoot.

how do I use the getObjectsInRange method the right way?

By A2O, with 1 reply.
Replied to by Super_Hippo, about 9 years ago:

It could look like this: <Code Omitted>

what do i put in 'getobjectsinrange()'?

By behappy2, with 9 replies.
Last reply by A2O, about 9 years ago:

how do I access a particular object from the list tho?

passing variables

By NIRO17, with 1 reply.
Replied to by danpost, about 9 years ago:

The coordinate locations of all objects in the world are already stored in the 'x' and 'y' (hidden) fields provided by the Actor class. These values, furthermore, can be obtained by the use of the 'getX' and 'getY' methods of the Actor class. So, for example, to get the coordinates of the man2 object from the man1 class:

read variable from a text file

By NIRO17, with 1 reply.
Replied to by danpost, about 9 years ago:

NIRO17 wrote...

x=5 y=6 is in a text file call "location.txt". what I want to know is, how can I read this two x,y values in that txt file in green foot.. i want to make senario base on that x,y variables.Further, there is an actor class called man1 in myworld class.so what i want is set that man1 x,y location to that x,y location in that text file.how can i do this?

What have you tried? Attempt something. Keep in mind, however, that the scenario will not be able to write to a txt file when uploaded (security issues).

Code Not Working

By Freekywill, with 4 replies.
Last reply by Freekywill, about 9 years ago:

Thank you so much danpost. Not only does this code work perfectly, but it functions better than before I had the problem.

vtn2@calvin.edu

ScratchFoot: a tool for converting Scratch to Greenfoot

By vtn2@calvin.edu, with 2 replies.
Last reply by Freekywill, about 9 years ago:

This is awesome! I might tell my computer science teacher about this to see if it would beneficial for some of the lower level classes.

generate an actor during the program running

By rosh11, with 1 reply.
Replied to by danpost, over 9 years ago:

rosh11 wrote...

I want to generate an actor in the world at (500,100) during the program running (waiting 10seconds) and move it to (200,300).

Please show what you have tried, code-wise.

Project

By Footnote1, with 3 replies.
Last reply by danpost, over 9 years ago:

Nevermind my last post. I missed where you indicated 'at spawn'. However, the terminology threw me when you indicated 'turn', where more appropriate would have been 'set their rotations'.

Beam Light Problems

By Laurence, with 36 replies.
Last reply by Super_Hippo, over 9 years ago:

You mean like this? Usually you can check out the Greenfoot API and find a method which you can use. <Code Omitted>

Shopping cart scenerio need explaining

By divinity, with 14 replies.
Last reply by divinity, over 9 years ago:

How to turn an object 90 degrees?

By Laurence, with 1 reply.
Replied to by danpost, over 9 years ago:

Laurence wrote...

Some of my objects face one direction and I'd like it to simply just turn 90 degrees downward.

There is a setRotation method in the Actor class.

heeyyyoooopatty

my health bar wont work :(

By heeyyyoooopatty, with 3 replies.
Last reply by danpost, over 9 years ago:

Super_Hippo wrote...

I don't really think that it makes sense that the Bloctopus has to hit the enemy and the healthbar to damage the enemy.

I could be mistaken, but I think the health bar is for the Bloctopus actor and not for the enemy (which would make a little more sense).

445

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