Messages

1

Graphics / Issues with Layers

« on: February 13, 2011, 02:58:43 am »

Thanks for the help!

2

Graphics / Issues with Layers

« on: February 13, 2011, 12:32:09 am »

Thanks for the help!
But, could you show me your solution?

3

Graphics / Issues with Layers

« on: February 12, 2011, 11:59:59 pm »

What if I do something like this:

Code: [Select]

layer.CreateShape(/*Parameters*/);

This would create a shape inside the vector in Layer, but not return the pointer, and CreateShape() would be void. Then, I could access the shape by

Code: [Select]

layer.GetVector()[0]

Or something similar to that. Is that a good idea?

4

Graphics / Issues with Layers

« on: February 12, 2011, 10:58:57 pm »

Thank you for replying!
The first error is fixed by adding "const" at the end, but how do I fix the second error? How can I not copy the object?

5

Graphics / Issues with Layers

« on: February 12, 2011, 06:28:48 pm »

Hello! This is my first post on SFML forums.

Recently, I have started a project in which I need a layer class, to group many drawables into one drawable. I have searched the forums, and I found some example code, which I tried to modify for my needs. However, I get strange compiler errors. Here is the code, first, then the errors:

Layer.h:

Code: [Select]


#include <SFML/Graphics.hpp>

class Layer : public sf::Drawable
{
public:
    void AddDrawable(sf::Shape d);
protected:
    typedef std::vector<sf::Shape> DrawableList;
    virtual void Render(sf::RenderTarget &target);
private:
    DrawableList myDrawables;
};



Layer.cpp:

Code: [Select]


#include "Layer.h"

void Layer::AddDrawable(sf::Shape d)
{
    myDrawables.push_back(d);
}

void Layer::Render(sf::RenderTarget &target)
{
    for(unsigned int f = 0; f < myDrawables.size(); f++)
    {
        target.Draw(*myDrawables[f]);
    }
}



Trying to use Layer:

Code: [Select]


Layer a;
a.AddDrawable(sf::Shape::Rectangle(10, 10, 40, 40, sf::Color(255, 200, 0), 5, sf::Color(0, 255, 255)));
a.SetPosition(60, 50);
App.Draw(a);


The compiler errors I get are
-error: cannot declare variable 'a' to be of abstract type 'Layer'
-error: no matching function for call to 'Layer::AddDrawable(sf::Shape)'

Any help would be greatly appreciated!
Thank you!