//
//?RoamMain.cpp?（GLUT?Version）
//?Bryan?Turner
//
//?Parts?of?the?code?in?this?file?were?borrowed?from?numerous?public?sources?&
//???literature.??I?reserve?NO?rights?to?this?code?and?give?a?hearty?thank-you?to?all?the
//???excellent?sources?used?in?this?project.??These?include?but?are?not?limited?to:
//
//???Longbow?Digital?Arts?Programming?Forum?（www.LongbowDigitalArts.com）
//???Gamasutra?Features?（www.Gamasutra.com）
//???GameDev?References?（www.GameDev.net）
//???C.?Cookson‘s?ROAM?implementation?（C.J.Cookson@dcs.warwick.ac.uk?OR?cjcookson@hotmail.com）
//???OpenGL?Super?Bible?（Waite?Group?Press）
//???And?many?more...
//

#include?
#include?
#include?
#include?
#include?		//?OpenGL
#include?	//?GLUT

#include?“utility.h“
#include?“landscape.h“


void?GLUTRenderScene（void）
{
	RenderScene（）;

	//?Copy?image?to?window
	glutSwapBuffers（）;
}

void?GLUTIdleFunction（void）
{
	IdleFunction（）;
	GLUTRenderScene（）;
}

void?GLUTKeyDown（?unsigned?char?key?int?x?int?y?）
{
	//?Key?Bindings
	switch（?key?）
	{
	case?‘w‘:?KeyForward（）;				break;
	case?‘a‘:?KeyLeft（）;				break;
	case?‘s‘:?KeyBackward（）;			break;
	case?‘d‘:?KeyRight（）;				break;

	case?‘f‘:?KeyAnimateToggle（）;		break;
	case?‘o‘:?KeyObserveToggle（）;		break;
	case?‘q‘:?KeyDrawModeSurf（）;		break;
	case?‘r‘:?KeyDrawFrustumToggle（）;	break;

	case?‘0‘:?KeyMoreDetail（）;			break;
	case?‘9‘:?KeyLessDetail（）;			break;

	case?‘1‘:?KeyFOVDown（）;				break;
	case?‘2‘:?KeyFOVUp（）;				break;
	}
}

void?GLUTKeySpecialDown（?int?key?int?x?int?y?）
{
	//?More?key?bindings
	switch（?key?）
	{
	case?GLUT_KEY_UP:	KeyUp（）;	break;
	case?GLUT_KEY_DOWN:	KeyDown（）;	break;
	}
}

void?GLUTMouseClick（int?button?int?state?int?x?int?y）
{
	//?Handle?LEFT?mouse?button?UP/DOWN?events...
	if?（?button?==?GLUT_LEFT_BUTTON?）
	{
		if?（?state?==?GLUT_DOWN?）
		{
			gRotating?=?1;
			gStartX?=?-1;
		}
		else
			gRotating?=?0;
	}
}

//?---------------------------------------------------------------------
//?Main?body?of?program
//
int	main（int?argc?char?*argv[]）
{
	//?GLUT?window?setup?and?initialization
	glutInit（&argc?argv）;
	glutInitDisplayMode（?GLUT_DOUBLE?|?GLUT_RGB?|?GLUT_DEPTH）;
	glutInitWindowPosition（0?0）;
	glutInitWindowSize（WINDOW_WIDTH?WINDOW_HEIGHT）;

	if?（?glutCreateWindow（“ROAM?Terrain?View“）?	{
		printf（“ERROR:?Create?Window?Failed!\n“）;
		exit（0）;
	}

	glutReshapeFunc（ChangeSize）;		//?Set?function?to?call?when?window?is?resized
	glutIdleFunc（GLUTIdleFunction）;		//?Set?function?to?call?when?program?is?idle
	glutKeyboardFunc（GLUTKeyDown）;
	glutSpecialFunc（GLUTKeySpecialDown）;
	glutMouseFunc（GLUTMouseClick）;
	glutMotionFunc（MouseMove）;
	glutDisplayFunc（GLUTRenderScene）;

	//?Setup?OpenGL
	SetupRC（）;
	SetDrawModeContext（）;

	//?Load?landscape?data?file
	loadTerrain（MAP_SIZE?&gHeightMap）;

	int?nAvgframes?=?-1;
	if?（?roamInit（gHeightMap）?=

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????208956??2000-03-12?13:51??中文版ROAM實時動態LOD地形渲染代碼\RoamSimple.exe

?????文件????1048576??2000-01-26?13:06??中文版ROAM實時動態LOD地形渲染代碼\Height1024.raw

?????文件???????2619??2000-01-26?12:34??中文版ROAM實時動態LOD地形渲染代碼\Landscape.h

?????文件???????2493??2000-01-26?00:25??中文版ROAM實時動態LOD地形渲染代碼\Patch.h

?????文件????????931??2000-03-12?13:56??中文版ROAM實時動態LOD地形渲染代碼\ReadMe.txt

?????文件??????19838??2000-03-06?22:12??中文版ROAM實時動態LOD地形渲染代碼\Roamsimple.cpp

?????文件???????4386??2000-03-12?14:00??中文版ROAM實時動態LOD地形渲染代碼\RoamSimple.dsp

?????文件???????3666??2000-03-12?13:44??中文版ROAM實時動態LOD地形渲染代碼\GlutMain.cpp

?????文件??????20145??2000-03-12?13:33??中文版ROAM實時動態LOD地形渲染代碼\Utility.cpp

?????文件???????1242??2000-03-12?13:33??中文版ROAM實時動態LOD地形渲染代碼\Utility.h

?????目錄??????????0??2009-01-29?19:52??中文版ROAM實時動態LOD地形渲染代碼

-----------?---------??----------?-----??----

??????????????1312852????????????????????11