stupid nub question for stupid meh :/

[Nexos]

Code: Select all

#include <windows.h>
#include <irrlicht.h>

using namespace irr;
using namespace core;
using namespace scene;
using namespace video;
using namespace io;
using namespace gui;

#pragma comment(lib, "Irrlicht.lib")

	IrrlichtDevice *device = 0;
	IVideoDriver* driver;

	s32 cnt = 0; 

	int ballx = 250;
	int bally = 150;
	int balmx = 1;
	int balmy = 0;
	int speed = 1;

	int slide = 100;
	int slidey = 150;

	int slider = 100;

	int aiskill = 1;
	int aidirection = 1;

class MyEmenu : public IEventReceiver
{
public:
	virtual bool OnEvent(SEvent event)
	{
		if (event.EventType == EET_GUI_EVENT)
		{
			s32 id = event.GUIEvent.Caller->getID();
			switch(event.GUIEvent.EventType)
				{			
			case EGET_BUTTON_CLICKED:
				break;
}
		}
		return false;
	}
};

INT WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, INT)
{
	MyEmenu receiver;
	IrrlichtDevice *device =
		createDevice(EDT_OPENGL, dimension2d<s32>(500, 300), 32, false, false, &receiver);
	IGUIEnvironment* guienv = device->getGUIEnvironment();
	IGUIImage* img = guienv->addImage(rect<int>(0,0,500,300));
	IVideoDriver* driver = device->getVideoDriver();
	device->setWindowCaption(L"Nexy Pongy - Alpha v0.1");
	void ball(void);
	void ai(void);
	while(device->run())
	{
		IGUIEnvironment* guienv = device->getGUIEnvironment();
		driver->beginScene(true, true, SColor(0,100,100,100));
		img->setImage(driver->getTexture("bg.jpg"));
		position2d<s32> m = device->getCursorControl()->getPosition();
		slidey = (m.Y - 50);
		slide = (m.Y - 50);
		ai();
		guienv->drawAll();
		ball();
		driver->draw2DImage (driver->getTexture("ball.jpg"), position2d<s32>(ballx,bally));
		driver->draw2DImage (driver->getTexture("slider.jpg"), position2d<s32>(30,slide));
		driver->draw2DImage (driver->getTexture("slider.jpg"), position2d<s32>(470,slider));
		driver->endScene();
	}
	device->drop();
	return 0;
}

void ai(void)
{
	if (slider >= 250)
	{
		aidirection = 1;
	}
	if (slider >= 50)
	{
		aidirection = 3;
	}

	if (aidirection = 1)
	{
		slider = (slider + speed);
	}
	else if (aidirection = 3)
	{
		slider = (slider - speed);
	}
}

void ball(void)
{
	if ((ballx <= 50) && ((bally <= (slidey + 50)) && ( bally >= (slidey - 50))))
	{
		balmx = 1;
	}
	if (ballx >= 490)
	{
		balmx = 0;
	}
	if (ballx < 0)
	{
		balmx = 1;
	}
	if (bally >= 290)
	{
		balmy = 0;
	}
	if (bally <= 0)
	{
		balmy = 1;
	}
	if (balmx == 0)
	{
		ballx = (ballx - speed);
	}
	else 
	{
		ballx = (ballx + speed);
	}
	if (balmy == 0)
	{
		bally = (bally - speed);
	}
	else 
	{
		bally = (bally + speed);
	}
}

the only provlem i have right now is that the ai function dont work im puzzled the slider just stays still and wont move, i gather this isnt vry informative but ill see what u say

[GAV(at uni)]

   if (aidirection = 1)
   {
      slider = (slider + speed);
   }
   else if (aidirection = 3)
   {
      slider = (slider - speed);
   }


you need to use == for comparison rather than = which sets the value to the right hand side

so at the moment, the first if statement sets the aidirection as 1, and is true because it cant be false. .. . so it adds speed to slider

then in the second statement it sets direction to 3, then subtracts speed from slider.
slider+speed-speed is the same as slider!!

so there is why it's not moving

PS I hope im right im a very newb programmer myself!!!!

[Nexos]

lol yey some1 answer ill ave a look now

it worked just had 2 change one more thing ty