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That reminds me an old bug that I had with the PostFx sample. As far as I remember, it only happened in the .Net binding, and I couldn't solve it (I didn't even find out what the hell was going on).
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using SFML.Graphics;
using SFML.Window;
using System.Threading;
namespace Nature
{
class Program
{
static public Random random;
static public RenderWindow window;
static public DateTime firsttick;
static void Main(string[] args)
{
firsttick = DateTime.Now;
random = new Random();
ContextSettings antial = new ContextSettings();
antial.AntialiasingLevel = 16;
window = new RenderWindow(new VideoMode(800, 600), "Nature",Styles.Close, antial);
window.SetFramerateLimit(60);
window.Closed += new EventHandler(SFMLCloseEvent);
if (window.Input.IsKeyDown(KeyCode.A))
{
//Somehow, this messes up image loading?
}
Image img = new Image("Res/Sprites/BurriedSprite.png");
img.Smooth = false;
Sprite spr = new Sprite(img);
spr.Width = 100;
spr.Height = 100;
spr.Position = new Vector2(100, 100);
while (window.IsOpened())
{
window.DispatchEvents();
window.SetActive();
window.Clear(new Color(100,200,100));
window.Draw(spr);
window.Display();
}
}
static void SFMLCloseEvent(object obj, EventArgs arg)
{
window.Close();
}
public static TimeSpan ElapsedTime()
{
return DateTime.Now - firsttick;
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using SFML.Graphics;
using SFML.Window;
using System.Threading;
namespace Nature
{
class Program
{
static public Random random;
static public RenderWindow window;
static public DateTime firsttick;
static void Main(string[] args)
{
firsttick = DateTime.Now;
random = new Random();
ContextSettings antial = new ContextSettings();
antial.AntialiasingLevel = 16;
window = new RenderWindow(new VideoMode(800, 600), "Nature",Styles.Close, antial);
window.SetFramerateLimit(60);
window.Closed += new EventHandler(SFMLCloseEvent);
/*if (window.Input.IsKeyDown(KeyCode.A))
{
//This is commented out, so it doesn't affect the image loading now?
}*/
Image img = new Image("Res/Sprites/BurriedSprite.png");
img.Smooth = false;
Sprite spr = new Sprite(img);
spr.Width = 100;
spr.Height = 100;
spr.Position = new Vector2(100, 100);
while (window.IsOpened())
{
window.DispatchEvents();
window.SetActive();
window.Clear(new Color(100,200,100));
window.Draw(spr);
window.Display();
}
}
static void SFMLCloseEvent(object obj, EventArgs arg)
{
window.Close();
}
public static TimeSpan ElapsedTime()
{
return DateTime.Now - firsttick;
}
}
}
int main(int argc,const char *argv[])
{
sf::ContextSettings cs;
cs.AntialiasingLevel = 12;
sf::RenderWindow window(sf::VideoMode(800,600), "Test",sf::Style::Close,cs);
window.SetFramerateLimit(60);
sf::RenderImage rimg;
rimg.Create(800,600);
rimg.Clear();
rimg.Draw(sf::Shape::Circle(100,100,50,sf::Color(255,255,255)));
rimg.Display();
sf::Sprite spr;
spr.SetImage(rimg.GetImage());
while(window.IsOpened())
{
while(window.GetEvent(event))
{
if(event.Type == sf::Event::Closed)
{
window.Close();
}
}
window.Clear();
window.Draw(spr);
window.Draw(sf::Shape::Circle(100,400,50,sf::Color(255,255,255)));
window.Display();
}
}
#include <iostream>
#include <string>
#include <SFML/Network.hpp>
int main()
{
sf::Http http;
sf::Http::Request req;
req.SetMethod(sf::Http::Request::Post);
req.SetUri("/GetRequest.php");
req.SetField("firstname", "aus");
req.SetField("last", "tech");
http.SetHost("http://theaustech.110mb.com");
http.SendRequest(req);
}
<?php
$name = $_POST["firstname"];
$lastname = $_POST["last"];
$list = fopen("savename.txt", 'a');
fwrite($list, $name);
fwrite($list, " ");
fwrite($list, $lastname);
fwrite($list, "\n");
fclose($list);
?>
A blend operation is between a source (the shape, the hidden box) and a target (the window), not between two separate sources. So, each call to Draw adds the alpha of the corresponding shape to the alpha of the window, which is 255.
And I must say that I have no idea about what effect you're trying to achieve
while(1)
{
while(window.GetEvent(event))
{
if(event.Type == sf::Event::Closed)
{
window.Close();
}
}
window.Clear();
sf::Shape hidden = sf::Shape::Rectangle(0,0,100,100,sf::Color(255,0,0,0));
hidden.SetBlendMode(sf::Blend::Add);
sf::Shape circ = sf::Shape::Circle(window.GetInput().GetMouseX(),window.GetInput().GetMouseY(), 40,sf::Color(255,255,255,100));
window.Draw(circ);
window.Draw(hidden);
window.Display();
}
class TestClass
{
public:
void Foo();
std::vector <TestClass2> Sprites;
private:
};
void TestClass::Foo()
{
TestClass2 T2;
T2.Img.LoadFromFile("SpriteSheet.png");
T2.Spr.SetImage(T2.Img);
Sprites.push_back(T2);
}
//TestClass.h
#pragma once
#include <SFML/Graphics.hpp>
#include "TestClassTwo.h"
class TestClass
{
public:
void Foo();
std::vector <sf::Sprite> Sprites;
private:
};
void TestClass::Foo()
{
TestClass2 T2;
T2.Img.LoadFromFile("SpriteSheet.png");
T2.Spr.SetImage(T2.Img);
Sprites.push_back(T2.Spr);
}
//TestClassTwo.h
#pragma once
#include <SFML/Graphics.hpp>
class TestClass2
{
public:
sf::Sprite Spr;
sf::Image Img;
private:
};
//main.cpp
#include "TestClass.h"
#include "TestClassTwo.h"
int main()
{
sf::RenderWindow Win;
Win.Create(sf::VideoMode(1000,800,32),"Test");
sf::Event Event;
TestClass T1;
T1.Foo();
while(Win.IsOpened())
{
while(Win.GetEvent(Event))
{
if(Event.Type == Event.Closed)
{
Win.Close();
}
}
Win.Clear(sf::Color(0,0,0));
Win.Draw(T1.Sprites[0]);
Win.Display();
}
}
