After executing the application, user clicks the start button. At the time I want to change the display to different dimensions. But doing that the screen becomes black and images doesn't paste.
while ( LoopGDK ( ) )
{
if(dbMouseClick()==1){
int x=dbMouseX(), y=dbMouseY();
if(x>370 && x<498 && y>240 && y<368){
dbDeleteImage(1);
dbDeleteImage(2);
bg_exist=false;
}
}
if(!dbSpriteExist(1)&&bg_exist==false){
dbSetDisplayMode(800,224,32);
dbPasteImage(3,0,0);
}
dbSprite(2,370,240,2);
dbPasteImage(1,0,0);
dbSync ( );
}
This engine is outdated and almost not used by any one anymore.
There are plenty way better engines out there, full list can be found here
My favourite would be unreal engine
I would suggest to play around with unreal engine since it has way better support and more easy to use features.
Related
I use MSHTML (TWebBrowser control) in Design (edit) mode. I use TEmbeddedWB but slowly moving away from that component and implementing my own interface. When a block of text is selected, so when typing into the editor and then selecting a block of text it is in black color for the background color.
Instead I'd like to use blue.
I know that it has something to do with the selection range but not sure how to modify it in designer mode. The code below is of course when it is not in design mode.
IHTMLSelectionObject currentSelection = document.selection;
IHTMLTxtRange range = currentSelection.createRange() as IHTMLTxtRange;
if (range != null)
{
range.execCommand("BackColor", false, "0000FF");
}
Any ideas? Do I have to use event sinking? Or maybe QueryCommandValue? I tried some things with HiliteColor without success yet (according to Mozilla documentation this is not supported by Internet Explorer).
I use C++ Builder or Delphi, but code example in any language is welcome, I can (probably) translate it.
I'm making a hobby project that is basically a bot for a very old flash game, the mouse move and click works fine, but all key presses make the operating system lag/stutter and sometimes stop listening to all keyboard inputs, real or fake.
I started using just XLib with XTests but didn't work, so I tried XSendEvent instead of XTests, but all symptoms stayed the same, so the last attempt was with XDO, which gave better results, but still freezes the OS.
this is the current snippet that I'm trying to use to simulate a keypress:
//Constructor
CheatCore::CheatCore() {
xdo_t x = xdo_new(NULL);
Window *list;
xdo_search_t search;
unsigned int nwindows;
memset(&search, 0, sizeof(xdo_search_t));
search.max_depth = -1;
search.require = xdo_search::SEARCH_ANY;
search.searchmask = SEARCH_CLASS | SEARCH_ONLYVISIBLE;
search.winclass = "Chrome";
int id = xdo_search_windows(x, &search, &list, &nwindows);
qDebug() << nwindows;
if(!nwindows){
qDebug() << "Chrome not found";
return;
}
w = list[0];
//I have to call activate twice to really bring it forward, I suspect that its
//because I use a transparent "overlay" that show stats for the cheat and it is set as Aways on top
//(i used Qt to set it to not get any Events)
xdo_activate_window(x,w);
xdo_activate_window(x,w);
}
//there is a function that executes every second to check if a pixel color has changed,
//if so, then the SendKey is called to Reload weapon magazine pressing the "space" key
void CheatCore::SendKey(){
xdo_activate_window(x,w);
xdo_activate_window(x,w);
xdo_send_keysequence_window(x, w, "space", 500);
}
I'm using a transparent overlay to show the bot status, with just some numbers appearing, it is a widget created using Qt that is AlwaysOnTop and the paint event draws the desired information's, it is another object and don't have direct impact in the CheatCore, but this is the window flags used to draw over a transparent window and ignore events.
setWindowFlags(Qt::WindowTransparentForInput | Qt::FramelessWindowHint |
Qt::WindowStaysOnTopHint);
setAttribute(Qt::WA_NoSystemBackground);
setAttribute(Qt::WA_TranslucentBackground);
setAttribute(Qt::WA_TransparentForMouseEvents);
I didn't manage to understand what could be provoking this weird behavior, could it be the windowing system?
Also, I tried to find a Qt way of simulating mouse/keyboard inputs, but i didn't manage to find any solution to send events to other windows if there is a way possible of achieving this would be great!
The game i'm trying to automate is called "Storm the House"
If interested this is the link to the online repo : link
Can you help me make this work? Thank you!
Context about the setup:
Ubuntu 18.10 using VGA and Nvidia drivers (if it may influence the xserver)
Did you ever try to use xdotool from command line. To use xdotool you need to install package first.
To simualte a key press, you can use.
xdotool key <key>
For example if you want to simulate key press for X you can use this code
xdotool key x
Or any other combination like
xdotool key ctrl+f
Also you can replace key press with another one, for example if you want to replace pressing D with Backspace you can try this one
xdotool key D BackSpace
You can read complete guid online, also you can write script with this tool and use it in many different situations.
Also you can use it for remote connection too.
I hope this helps you with your little problem.
Using evdev is a linux specific option.
It's a simpler solution as you just need to open the correct file and write to it.
Take a look at this similar question to see how to get started.
I want to play a video in a frame using wxSmith ( which is a wxWidgets extension ) . I've read the documentation from their website ( http://docs.wxwidgets.org/2.6.3/wx_wxmediactrl.html ) but I barely understood it . What I did by now :
wxMediaCtrl* Video;
wxString filename='/home/cristi/Desktop/intro.mp4';
Video= new wxMediaCtrl(this, filename,"IDVideo",wxDefaultPosition,wxDefaultSize,0,wxT(""),wxDefaultValidator,wxPanelNameStr);
this->Connect(IDVideo, wxEVT_MEDIA_STOP, (wxObjectEventFunction)
(wxEventFunction)(wxMediaEventFunction) &t2Frame::OnMediaStop);
void t2Frame::OnMediaStop(const wxMediaEvent& evt)
{
if(I don't know what to put here)
{
m_mediactrl->SetPosition(
m_mediactrl->GetDuration() << 1
);
evt.Veto();
}
}
But I don't know what to do next. I have a lots of error. It's the first time I use wxWidgets and I've searched a lot on the Internet but no results.
Thanks in advance.
Two general advices:
Start from a non-ancient wxWidgets version such as 3.0.2.
Look at the sample showing the use of this control.
Beyond this I really am not sure what are you asking about, e.g. why are you handling wxEVT_MEDIA_STOP in the first place. And, of course, you should really make some better effort than "lots of error[s]" if you want to get any help.
I'm writting a game using C++. I wonder how can I optimize my game loop. For example, we have some game with the main loop looks like this:
while ( gameContinue ) {
if ( SCENE == HELP_SCENE ) {
renderHelpScene();
} else if ( SCENE == SCORE_SCENE ) {
renderScoreScene();
} else if ( SCENE == MAIN_GAME_SCENE ) {
renderMainGameScene();
} // .... and many others scenes
}
I'm thinking on how to make this code faster and lighter. I think about using callbacks so we will not need many if-cases. Something like this:
typedef void (*callback_function)(void);
callback_function renderFunc;
void renderMainGameScene() {
renderFunc = renderScoreScene(); // set to another scene if we need this
}
void renderScoreScene() {
renderFunc = renderAnyAnotherSceneWeNeedNow();
}
renderFunc = renderMainGameScene();
while ( gameContinue ) {
renderFunc();
}
What do you think about it? How do you organize your main loops?
I've personally started using multi-threading. I have a thread for object updates, a thread for objects collision and a thread for drawing. Each thread loops with a while (GetMessage()) and threads send messages from one to another.
At each cycle (frame), my main loop sends a message to each thread to:
Calculate collision for modified objects
Update objects (movement, state etc.)
Draw the updated objects
That's how I do it (at least on my GDI/GDI+ games). Not sure if the best way, but so far it works like a charm :).
Helpful patterns for this kind of problem are the State Pattern and the Strategy Pattern.
As you can see they are both similar. The Strategy pattern is a bit simpler than the State, but in exchange the State Pattern is more powerful and probably better fitted for a game engine like this. You can also easily create a stack with this for example: game start -> menu -> game run -> menu.
If the parent state of the last menu is game run, the menu would look different (e.g. "Return game" instead of "Start game" in the first menu). The states can be popped and you have a easy navigation.
Using call-backs should be fine. Just be careful not to have any cyclic dependencies in your headers. Notably it's a bad idea to include the header for your controller loop anywhere other than the .cpp for the controller loop.
As for the runtime benefits, they are very small. The if-else method will not noticeably slow down your game. Alternatively, there is also the switch statement, which is preferable to a series of if-else statements in terms of code readability.
I need to write a C++ GUI such that user can make a flowchart / pipeline by selecting several blocks from a toolbar and putting them into a window and connecting them in some order which he wants and then program runs the flowchart. (For simplicity just consider each block's task is to print some number. My problem is GUI)
Does anyone ever try a similar thing / any experience?
Is it possible to make such a GUI in WxWidget or any other Graphics/Window-form library?
Is it possible to use VTK to make the GUI?
Do you know of any similar open source work?
I have developed several apps with GUIs that do this sort of thing.
The one I am most pleased with is called VASE: A GUI used to create the layout, set parameters and view results of a process flow simulator.
It is not a trivial task, though once you have done one or two, there are many ideas that you can reuse and it goes quickly.
The two biggest challenges drawing the lines connecting the objects ( as you can see, even in VASE, this problem is not completely solved ) and storing that layout in a format that can be easily recovered and redrawn.
Is there any particular issue you need help with?
If you want a really, really, simple example to get you started I have re-implemented a couple of basic features ( all nice and clean, no copyright restrictions ) - left click to select, drag to move, right click to connect.
Here is the source code repository - http://66.199.140.183/cgi-bin/vase.cgi/home
Here's what it looks like
I have implemented a simplified connector, which I call a pipe. To give you a flavour of how to do this kind of stuff, here is the code to add a pipe when the user right clicks
/**
User has right clicked
If he right clicks on a flower
and there is a different flower selected
then connect the selected flower to the right clicked flower
if he right clicks on empty background
create a new flower
*/
void cVase::MouseRightDown( wxMouseEvent& event )
{
// find flower under click
iterator iter_flower_clicked = find( event.GetPosition() );
// check there was a flower under click
if( iter_flower_clicked != end() ) {
// check that we have a selected flower
if( ! mySelected )
return;
// check that selected flower is different from one clicked
if( mySelected == (*iter_flower_clicked) )
return;
// construct pipe from selected flower to clicked flower
myPipe.push_back(cPipe( mySelected, *iter_flower_clicked ));
} else {
// no flower under click
// make one appear!
cFlower * pflower = Add();
pflower->setLocation( event.GetPosition() );
}
// redraw everything
Refresh();
}
And here is the code to draw a pipe
/**
Draw the pipe
From starting flower's exit port to ending flower's entry port
*/
void cPipe::Paint( wxPaintDC& dc )
{
dc.SetPen( *wxBLUE_PEN );
dc.DrawLine( myStart->getExitPort(), myEnd->getEntryPort() );
}
You can see the rest of the wxWidgets code that ties all this together by browsing the source code repository.
I think using a library such as wxArt2D would be easier than using the standard wxWidgets drawing classes. The wires sample of wxArt2D looks similar to what you are looking for.
Maybe you can have a try with the tiny tool called Flowchart to Code, you can get the flowchart needed,like this. It can be downloaded here:http://www.athtek.com/flowchart-to-code.html#.Ug4z29JPTfI