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Unhandled Exception

sarim janjua · 2012-01-27T23:58:05

[color=#000000][font=Verdana, Arial, Helvetica, sans-serif]I dont know what im doing wrong but for some reason I keep getting an unhandled exception my my entity manager. I try to draw the sprite to the screen and right before the entity manager updates and trys to draw it everything is fine. But as soon as it attempts to draw the sprite i get an exception. Here's the code. Can someone please help me ? This is driving me nuts if you need the whole project just let me know and ill email it to you //Game.cpp [/font] [color=#000000][size=2]Code: #include "EntityManager.h" void System::Init() { engine = new System(); engine -> SetWindow(800, 600, "Test"); Entity player; player.Load("test.png", 100, 100); manager.Add(player); } void System::Run() { sf::Event ev; while (engine -> window -> IsOpened()) { engine -> window -> PollEvent(ev); engine -> window -> Clear(); manager.Update(); engine -> window -> Display(); } } [color=#000000][font=Verdana, Arial, Helvetica, sans-serif]//System.cpp [/font] [color=#000000][size=2]Code: #include "System.h" void System::SetScreenDim(int width, int height) { this -> SCREENW = width; this -> SCREENH = height; } void System::SetTitle(std::string title) { this -> Title = title; } void System::SetWindow(int width, int height, std::string title) { this -> SCREENW = width; this -> SCREENH = height; this -> window = new sf::RenderWindow(sf::VideoMode(width, height), title.c_str()); } [color=#000000][font=Verdana, Arial, Helvetica, sans-serif]//EntityManager.cpp [/font] [color=#000000][size=2]Code: #include "EntityManager.h" #include "System.h" void Manager::Update() { Entity entity; std::list<Entity>::iterator iter = eList.begin(); while (iter != eList.end()) { entity = *iter; entity.GetSprite().SetPosition(entity.GetX(), entity.GetY()); engine -> window -> Draw(entity.GetSprite()); iter++; } } void Manager::Add(Entity entity) { eList.push_back(entity); } [color=#000000][font=Verdana, Arial, Helvetica, sans-serif]//Entity.cpp [/font] [color=#000000][size=2]Code: #include "Entity.h" void Entity::Load(std::string filename, float x, float y) { this -> Filename = filename; this -> Image.LoadFromFile(this -> Filename.c_str()); this -> Sprite.SetImage(this -> Image); this -> posx = x; this -> posy = y; } void Entity::Update() { this -> Sprite.SetPosition(this -> posx, this -> posy); } [color=#000000][font=Verdana, Arial, Helvetica, sans-serif][/font]

General and Gameplay Programming Programming

Started by sarim January 27, 2012 08:59 PM

17 comments, last by swiftcoder 12 years, 2 months ago

sarim

440

Author

January 27, 2012 09:43 PM

well the iterator stuff just makes a container to hold all the characters and objects within the game. Every frame it runs through all the objects and updates them. This is where "engine" keeps losing its pointer for some reason

ProvenDantheman

111

January 27, 2012 09:48 PM

Make sure you aren't exceeding the amount of allocated objects there are, and make sure the memory for the objects is allocated accordingly.

ProvenDantheman

111

January 27, 2012 09:50 PM

[color=#282828][font=helvetica, arial, verdana, tahoma, sans-serif]

entity.GetSprite().SetPosition(entity.GetX(), entity.GetY());

Is this correct? Seems odd.
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sarim

440

Author

January 27, 2012 09:53 PM

let me fix that a bit and ill see if it works

sarim

440

Author

January 27, 2012 09:59 PM

so i cleaned that part up a little bit but it still doesnt work. The error is still coming up at "engine -> window -> Draw();"

ProvenDantheman

111

January 27, 2012 10:03 PM

Well then it has to be the draw function. Take a look. Or perhaps it has to be the getsprite function

sarim

440

Author

January 27, 2012 10:09 PM

No its not that...it has to do something with the "engine" instantiation. It's perfectly fine before it enters the entity manager. Then when it's in it the value goes to 0x0000000

ProvenDantheman

111

January 27, 2012 10:27 PM

I don't know what to tell you, I'm sorry.

swiftcoder

18,997

January 27, 2012 11:58 PM

You should place a data breakpoint on the relevant pointer, so that you can see when it is modified during debugging.

Tristam MacDonald. Ex-BigTech Software Engineer. Future farmer. [https://trist.am]

Unhandled Exception

entity.GetSprite().SetPosition(entity.GetX(), entity.GetY());

Is this correct? Seems odd.
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Unhandled Exception

entity.GetSprite().SetPosition(entity.GetX(), entity.GetY()); Is this correct? Seems odd.[/font]

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entity.GetSprite().SetPosition(entity.GetX(), entity.GetY());

Is this correct? Seems odd.
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