Irrlicht Engine

Code: Select all

#include "amhEventReceiver.h"
#include <fstream>
#include <string>

// on event
bool amhEventReceiver::OnEvent(const SEvent& event){
	
	if(event.EventType == EET_KEY_INPUT_EVENT){
		keys[event.KeyInput.Key] = event.KeyInput.PressedDown;
	}
	if(event.EventType == EET_GUI_EVENT){
		return checkGuiEvent(event);
	}
	if(event.EventType == EET_MOUSE_INPUT_EVENT){
		onMouseEvent();
	}
	if(event.EventType == EET_LOG_TEXT_EVENT){
	}
	if(event.EventType == EET_USER_EVENT){
	}

	return false;
}

bool amhEventReceiver::onMouseEvent(void){
	if(Game->game_state == IN_GAME){
		position2di cursorPos = cursorControl->getPosition();

		if(cursorPos.X != centerPos.X || cursorPos.Y != centerPos.Y){

			cursorPos.X -= centerPos.X;
			cursorPos.Y -= centerPos.Y;

			yaw(mouseSpeed * cursorPos.X*PI/180.0f);
			pitch(mouseSpeed * cursorPos.Y*PI/180.0f);
			cursorControl->setPosition(centerPos);
		}
	}
	return true;
}

void amhEventReceiver::updateCamera(){ 
    // get transformation matrix of node 
    matrix4 m; 
    m.setRotationDegrees(node->getRotation()); 

    vector3df frv = vector3df (0.0f, 0.0f, 100.0f); 
    m.transformVect(frv); 
    
    vector3df upv = vector3df (0.0f, 1.0f, 0.0f); 
    m.transformVect(upv); 

    camera->setPosition(node->getPosition()); //position camera in front of the ship 
    camera->setUpVector(upv); //set up vector of camera 
	camera->setTarget(node->getAbsolutePosition() + frv); //set target of camera (look at point)
}

void amhEventReceiver::move(vector3df dir){
	matrix4 m; 
	m.setRotationDegrees(node->getRotation()); 
	m.transformVect(dir); 
	node->setPosition(node->getPosition() + dir);
}

void amhEventReceiver::rotate(vector3df rot) 
{ 
    matrix4 m; 
    m.setRotationDegrees(node->getRotation()); 
    matrix4 n; 
    n.setRotationDegrees(rot); 
    m *= n; 
    node->setRotation( m.getRotationDegrees() ); 
} 

//--- turn ship left or right --- 
void amhEventReceiver::yaw(f32 rot){ 
    rotate(vector3df(0.0f, rot, 0.0f) ); 
} 

//--- pitch ship up or down --- 
void amhEventReceiver::pitch(f32 rot){ 
    rotate(vector3df(rot, 0.0f, 0.0f) ); 
} 

//--- roll ship left or right --- 
void amhEventReceiver::roll(f32 rot){ 
    rotate(vector3df(0.0f, 0.0f, rot) ); 
}

// gui events
bool amhEventReceiver::checkGuiEvent(const SEvent& event){
	IGUIEnvironment* env = device->getGUIEnvironment();
	s32 id = event.GUIEvent.Caller->getID();

	switch(event.GUIEvent.EventType){
		case EGET_SCROLL_BAR_CHANGED:
			if (id == 104)	{
				s32 barpos = ((IGUIScrollBar*)event.GUIEvent.Caller)->getPos();
				for (s32 i=0; i<EGDC_COUNT ; ++i){
					SColor col = env->getSkin()->getColor((EGUI_DEFAULT_COLOR)i);
					col.setAlpha(barpos);
					env->getSkin()->setColor((EGUI_DEFAULT_COLOR)i, col);
				}	
			}
			break;
		case EGET_BUTTON_CLICKED:
			if(id == 101){
				if(smgr->loadScene("media/maps/test01.irr")){
					Game->game_state = IN_GAME;
					cursorControl->setPosition(centerPos);

					node = smgr->addSceneNode("empty");

					target = smgr->addSceneNode("empty", node);
					target->setPosition(vector3df(0.0f, 100.0f, 0.0f));

					smgr->addCameraSceneNode(node);
					camera = smgr->getActiveCamera();

					smgr->getGUIEnvironment()->removeFocus(smgr->getGUIEnvironment()->getFocus());
				}
			}
			if(id == 103){
				Game->game_state = GAME_EXIT;
			}
		break;
	}
	return false;
}
// keyboards, mous and GUI events
void amhEventReceiver::checkKeys(){
	if(keys[KEY_ESCAPE])	Game->game_state = GAME_EXIT;

	if(keys[KEY_KEY_Z])		move(vector3df(0.0f, 0.0f, 1.0f));
	if(keys[KEY_KEY_S])		move(vector3df(0.0f, 0.0f, -1.0f));
	if(keys[KEY_KEY_Q])		move(vector3df(-1.0f, 0.0f, 0.0f));
	if(keys[KEY_KEY_D])		move(vector3df(1.0f, 0.0f, 0.0f));
	if(keys[KEY_SPACE])		move(vector3df(0.0f, 1.0f, 0.0f));
	if(keys[KEY_CONTROL])	move(vector3df(0.0f, -1.0f, 0.0f));
}

amhEventReceiver::amhEventReceiver(IrrlichtDevice* d, amhGame* g):
		mouseSpeed(3.0f)
{	
	device = d;
	Game = g;
	smgr = device->getSceneManager();
	cursorControl = device->getCursorControl();
	for(int i=0; i < KEY_KEY_CODES_COUNT; i++) 
		keys[i] = false;
	
	centerPos.X = device->getVideoDriver()->getViewPort().getWidth()/2;
	centerPos.Y = device->getVideoDriver()->getViewPort().getHeight()/2;

}

amhEventReceiver::~amhEventReceiver(void)
{
}

Code: Select all

					target = smgr->addSceneNode("empty", node);
					target->setPosition(vector3df(0.0f,0.0f,100.0f));

Code: Select all

matrix4 m; 
    m.setRotationDegrees(node->getRotation());
	vector3df upv = vector3df (0.0f, 1.0f, 0.0f); 
    m.transformVect(upv); 
    camera->setUpVector(upv);
	camera->setTarget(target->getAbsolutePosition());

Code: Select all

// direction control
        if(keys[irr::KEY_LEFT])
        {
            turn(node1, -0.1);
        }
        if(keys[irr::KEY_RIGHT])
        {
            turn(node1, 0.1);
        }