www.pudn.com > HGE_game_damo.rar > menuitem.cpp

/* 
** Haaf's Game Engine 1.6 
** Copyright (C) 2003-2006, Relish Games 
** hge.relishgames.com 
** 
*/ 
 
// In menuitem.cpp/h we define the 
// behaviour of our custom GUI control 
 
#include "menuitem.h" 
 
// This is a GUI control constructor, 
// we should initialize all the variables here 
hgeGUIMenuItem::hgeGUIMenuItem(int _id, hgeFont *_fnt, HEFFECT _snd, float _x, float _y, float _delay, char *_title) 
{ 
	float w; 
	 
	id=_id; 
	fnt=_fnt; 
	snd=_snd; 
	delay=_delay; 
	title=_title; 
 
	color.SetHWColor(0xFFFFE060); 
	shadow.SetHWColor(0x30000000); 
	offset=0.0f; 
	timer=-1.0f; 
	timer2=-1.0f; 
 
	bStatic=false; 
	bVisible=true; 
	bEnabled=true; 
 
	w=fnt->GetStringWidth(title); 
	rect.Set(_x-w/2, _y, _x+w/2, _y+fnt->GetHeight()); 
} 
 
// This method is called when the control should be rendered 
void hgeGUIMenuItem::Render() 
{ 
	fnt->SetColor(shadow.GetHWColor()); 
	fnt->Render(rect.x1+offset+3, rect.y1+3, HGETEXT_LEFT, title); 
	fnt->SetColor(color.GetHWColor()); 
	fnt->Render(rect.x1-offset, rect.y1-offset, HGETEXT_LEFT, title); 
} 
 
// This method is called each frame, 
// we should update the animation here 
void hgeGUIMenuItem::Update(float dt) 
{ 
	if(timer2 != -1.0f) 
	{ 
		timer2+=dt; 
		if(timer2 >= delay+0.1f) 
		{ 
			color=scolor2+dcolor2; 
			shadow=sshadow+dshadow; 
			offset=0.0f; 
			timer2=-1.0f; 
		} 
		else 
		{ 
			if(timer2 < delay) { color=scolor2; shadow=sshadow; } 
			else { color=scolor2+dcolor2*(timer2-delay)*10; shadow=sshadow+dshadow*(timer2-delay)*10; } 
		} 
	} 
	else if(timer != -1.0f) 
	{ 
		timer+=dt; 
		if(timer >= 0.2f) 
		{ 
			color=scolor+dcolor; 
			offset=soffset+doffset; 
			timer=-1.0f; 
		} 
		else 
		{ 
			color=scolor+dcolor*timer*5; 
			offset=soffset+doffset*timer*5; 
		} 
	} 
} 
 
// This method is called when the GUI 
// is about to appear on the screen 
void hgeGUIMenuItem::Enter() 
{ 
	hgeColor tcolor2; 
 
	scolor2.SetHWColor(0x00FFE060); 
	tcolor2.SetHWColor(0xFFFFE060); 
	dcolor2=tcolor2-scolor2; 
 
	sshadow.SetHWColor(0x00000000); 
	tcolor2.SetHWColor(0x30000000); 
	dshadow=tcolor2-sshadow; 
 
	timer2=0.0f; 
} 
 
// This method is called when the GUI 
// is about to disappear from the screen 
void hgeGUIMenuItem::Leave() 
{ 
	hgeColor tcolor2; 
 
	scolor2.SetHWColor(0xFFFFE060); 
	tcolor2.SetHWColor(0x00FFE060); 
	dcolor2=tcolor2-scolor2; 
 
	sshadow.SetHWColor(0x30000000); 
	tcolor2.SetHWColor(0x00000000); 
	dshadow=tcolor2-sshadow; 
 
	timer2=0.0f; 
} 
 
// This method is called to test whether the control 
// have finished it's Enter/Leave animation 
bool hgeGUIMenuItem::IsDone() 
{ 
	if(timer2==-1.0f) return true; 
	else return false; 
} 
 
// This method is called when the control 
// receives or loses keyboard input focus 
void hgeGUIMenuItem::Focus(bool bFocused) 
{ 
	hgeColor tcolor; 
	 
	if(bFocused) 
	{ 
		hge->Effect_Play(snd); 
		scolor.SetHWColor(0xFFFFE060); 
		tcolor.SetHWColor(0xFFFFFFFF); 
		soffset=0; 
		doffset=4; 
	} 
	else 
	{ 
		scolor.SetHWColor(0xFFFFFFFF); 
		tcolor.SetHWColor(0xFFFFE060); 
		soffset=4; 
		doffset=-4; 
	} 
 
	dcolor=tcolor-scolor; 
	timer=0.0f; 
} 
 
// This method is called to notify the control 
// that the mouse cursor has entered or left it's area 
void hgeGUIMenuItem::MouseOver(bool bOver) 
{ 
	if(bOver) gui->SetFocus(id); 
} 
 
// This method is called to notify the control 
// that the left mouse button state has changed. 
// If it returns true - the caller will receive 
// the control's ID 
bool hgeGUIMenuItem::MouseLButton(bool bDown) 
{ 
	if(!bDown) 
	{ 
		offset=4; 
		return true; 
	} 
	else  
	{ 
		hge->Effect_Play(snd); 
		offset=0; 
		return false; 
	} 
} 
 
// This method is called to notify the 
// control that a key has been clicked. 
// If it returns true - the caller will 
// receive the control's ID 
bool hgeGUIMenuItem::KeyClick(int key, int chr) 
{ 
	if(key==HGEK_ENTER || key==HGEK_SPACE) 
	{ 
		MouseLButton(true); 
		return MouseLButton(false); 
	} 
 
	return false; 
}