Messages

1

Graphics / Attempting to set shape color to blue gives black

« on: July 26, 2010, 09:14:43 am »

The color that you pass to the Shape::Circle function is assigned to the shape's points. This is not the global shape color (inherited from sf::Drawable), these two are separate and modulated when the shape is drawn. So you should leave the shape's points with a white color, and play only with the global color (SetColor).

OK, thanks for the clarification. It's a bit confusing because the Circle constructor's color argument is just described as "Color used to fill the circle" in the docs.

2

Graphics / Attempting to set shape color to blue gives black

« on: July 26, 2010, 08:04:38 am »

I can set the background displayed to blue just fine using Clear(sf::Color(0,0,255)).

I'm trying to set a shape's color to blue by using the Shape::SetColor method as follows:

Code: [Select]

crit.getShape().SetColor(sf::Color(0,0,255));

crit is an object that has a sf::Shape member variable, accessed by the following function:

Code: [Select]

sf::Shape& Critter::getShape()
{
return shape;
}

and shape is instantiated in the object's constructor as follows:

Code: [Select]

shape = sf::Shape::Circle(0, 0, 15, sf::Color(128, 128, 0, 255));

When I try to set the shape's color to blue, it yields a black circle. If I set it to (0,0,255,123) it yields a grey circle when viewed against a white background.

Is there some blending mode of the Shape that is interfering with my attempt?

(255,0,0) yields red    
(0,255,0) yields green
(0,0,255) yields black  :?:
(255,255,0) and (255,255,0) both yield yellow  :!:
This seems to indicate to me there's some sort of masking going on that is ignoring blue component, but i have no idea where to look for this

3

General / Trouble Installing with CodeBlocks (Ubuntu)

« on: July 01, 2010, 07:38:58 am »

OK, I added /usr/local/lib to my linker path, and now it finds the files but I'm getting the following error:

Code: [Select]

/usr/local/lib/libsfml-system.so||undefined reference to `std::ctype<char>::_M_widen_init() const@GLIBCXX_3.4.11'|
||=== Build finished: 1 errors, 0 warnings ===|


After some research, it's the same problem as this thread: http://www.sfml-dev.org/forum/viewtopic.php?p=16938&sid=5dd7c587fe67abc9337e3e9766620590 from a few months ago.

Reinstalling with apt-get install --reinstall libstdc++6 did not work.

Is there anything else I can do?

4

General / Trouble Installing with CodeBlocks (Ubuntu)

« on: July 01, 2010, 06:41:15 am »

I'm having trouble getting SFML up and running using CodeBlocks under Linux. I'm not entirely sure which tutorial I should be following (CodeBlocks of Linux), so I've done most of the things that are recommended in both.


1. Project->Build Options->Search directories->compiler contains the relative path to the include folder of the Linux version, while ->linker contains relative path to the lib folder

2. I did a "sudo make install" from the SFML-1.6 folder, which seemed successful.

After this, I tried running the test program. I got complaints about lack of definitions, which I expected  because I did not have the additional libraries linked. SO I tried to do that.

3. Project->Build Options->Linker settings -> other linker options, I added sfml-system. This is where I'm suck.

Code: [Select]


-------------- Build: Debug in RollerFuck ---------------

Linking console executable: bin/Debug/RollerFuck
g++: sfml-system: No such file or directory
Process terminated with status 1 (0 minutes, 0 seconds)

I'm not quite sure where to go from here.