// DEMO12_5_16b.CPP - pattern demo
// 16-bit version
// to compile make sure to include DDRAW.LIB, DSOUND.LIB,
// DINPUT.LIB, WINMM.LIB, and of course 
// T3DLIB1.CPP,T3DLIB2.CPP,T3DLIB3.CPP,

// INCLUDES ///////////////////////////////////////////////

#define INITGUID

#define WIN32_LEAN_AND_MEAN  

#include <windows.h>   // include important windows stuff
#include <windowsx.h> 
#include <mmsystem.h>
#include <iostream.h> // include important C/C++ stuff
#include <conio.h>
#include <stdlib.h>
#include <malloc.h>
#include <memory.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h> 
#include <math.h>
#include <io.h>
#include <fcntl.h>

#include <ddraw.h>  // directX includes
#include <dsound.h>
#include <dmksctrl.h>
#include <dmusici.h>
#include <dmusicc.h>
#include <dmusicf.h>
#include <dinput.h>
#include "T3DLIB1.h" // game library includes
#include "T3DLIB2.h"
#include "T3DLIB3.h"


// DEFINES ////////////////////////////////////////////////

// defines for windows 
#define WINDOW_CLASS_NAME "WINXCLASS"  // class name

// setup a 640x480 16-bit windowed mode example
#define WINDOW_TITLE      "16-Bit Pattern Demo"
#define WINDOW_WIDTH      640   // size of window
#define WINDOW_HEIGHT     480

#define WINDOW_BPP        16    // bitdepth of window (8,16,24 etc.)
                                // note: if windowed and not
                                // fullscreen then bitdepth must
                                // be same as system bitdepth
                                // also if 8-bit the a pallete
                                // is created and attached

#define WINDOWED_APP      1     // 0 not windowed, 1 windowed

#define NUM_PATTERNS    4     // number of patterns in system

// pattern instruction opcodes for bot

// directional instructions
#define OPC_E    0  // move west
#define OPC_NE   1  // move northeast
#define OPC_N    2  // move north
#define OPC_NW   3  // move northwest
#define OPC_W    4  // move west
#define OPC_SW   5  // move southwest
#define OPC_S    6  // move south
#define OPC_SE   7  // move southeast

// special instructions
#define OPC_STOP 8  // stop for a moment
#define OPC_RAND 9  // select a random direction
#define OPC_END  -1 // end pattern

// PROTOTYPES /////////////////////////////////////////////

// game console
int Game_Init(void *parms=NULL);
int Game_Shutdown(void *parms=NULL);
int Game_Main(void *parms=NULL);

// GLOBALS ////////////////////////////////////////////////

HWND main_window_handle           = NULL; // save the window handle
HINSTANCE main_instance           = NULL; // save the instance
char buffer[80];                          // used to print text

BITMAP_IMAGE background_bmp;   // holds the background
BOB          bot;              // the demo robot ship

// patterns in opcode operand format
int pattern_1[] = {OPC_W, 10, OPC_NW, 10, OPC_N, 10, OPC_NE, 10, 
                   OPC_E, 10, OPC_SE, 10, OPC_S, 10, OPC_SW, 10, 
                   OPC_W, 10, OPC_RAND, 10,
                   
                   OPC_W, 20, OPC_NW, 10, OPC_N, 20, OPC_NE, 10, 
                   OPC_E, 20, OPC_SE, 10, OPC_S, 20, OPC_SW, 10, 
                   OPC_W, 10, OPC_END,0};
                   

int pattern_2[] = {OPC_E, 20, OPC_W, 20, OPC_STOP, 20, OPC_NE, 10, 
                   OPC_W, 10, OPC_NW, 10, OPC_SW, 20, OPC_NW, 20, 
                   OPC_SW, 20, OPC_NW, 30, OPC_SW, 10, OPC_S, 50,  
                   OPC_W, 2, OPC_NW, 2, OPC_N, 2, OPC_NE, 50,
                   OPC_E,2, OPC_SE,2, OPC_S,2, OPC_RAND, 10, OPC_END,0};



int pattern_3[] = { OPC_N, 10, OPC_S, 10, OPC_N, 10, OPC_S, 10, 
                    OPC_E, 10, OPC_W, 10, OPC_E, 10, OPC_W, 10, 
                    OPC_NW, 10, OPC_N, 10, OPC_NE, 10, OPC_N, 10, 
                    OPC_STOP, 20, OPC_RAND, 5, OPC_E, 50, OPC_S, 50, OPC_W, 50, 
                    OPC_E, 10, OPC_E, 10, OPC_E, 10, OPC_NW, 100, 
                    OPC_STOP, 10, OPC_END,0};


int pattern_4[] = {OPC_W, 100, 
                   OPC_NW, 2,OPC_N, 2,OPC_NE, 2,
                   OPC_E, 100, 
                   OPC_NE, 2,OPC_N, 2,OPC_NW, 2,
                    
                   OPC_W, 100, 
                   OPC_NW, 2,OPC_N, 2,OPC_NE, 2,
                   OPC_E, 100, 
                   OPC_NE, 2,OPC_N, 2,OPC_NW, 2,
                    
                   OPC_W, 100, 
                   OPC_NW, 2,OPC_N, 2,OPC_NE, 2,
                   OPC_E, 100, 
                   OPC_NE, 2,OPC_N, 2,OPC_NW, 2,

                   OPC_RAND, 10, OPC_RAND, 5,

                   OPC_SW, 2,OPC_S, 2,OPC_SE, 2,
                   OPC_E, 100, 
                   OPC_SE, 2,OPC_S, 2,OPC_SW, 2,
                   OPC_W, 100,

                   OPC_SW, 2,OPC_S, 2,OPC_SE, 2,
                   OPC_E, 100, 
                   OPC_SE, 2,OPC_S, 2,OPC_SW, 2,
                   OPC_W, 100,

                   OPC_SW, 2,OPC_S, 2,OPC_SE, 2,
                   OPC_E, 100, 
                   OPC_SE, 2,OPC_S, 2,OPC_SW, 2,
                   OPC_W, 100, OPC_END,0};

// master pattern array
int *patterns[NUM_PATTERNS] = {pattern_1, pattern_2, pattern_3, pattern_4};

int *curr_pattern=NULL;  // current pattern being processed

int bot_ip     =0,       // pattern instruction pointer for bot
    bot_counter=0,       // counter of pattern control
    bot_pattern_index;   // the current pattern being executed

// used as a index to string lookup to help print out
char *opcode_names[] = {"OPC_E",
                        "OPC_NE", 
                        "OPC_N",    
                        "OPC_NW",   
                        "OPC_W",    
                        "OPC_SW",   
                        "OPC_S",    
                        "OPC_SE",   
                        "OPC_STOP", 
                        "OPC_RAND", 
                        "OPC_END",};  
// sound stuff
int engines_id = -1; // engine sound id

// FUNCTIONS //////////////////////////////////////////////

LRESULT CALLBACK WindowProc(HWND hwnd, 
						    UINT msg, 
                            WPARAM wparam, 
                            LPARAM lparam)
{
// this is the main message handler of the system
PAINTSTRUCT	ps;		   // used in WM_PAINT
HDC			hdc;	   // handle to a device context

// what is the message 
switch(msg)
	{	
	case WM_CREATE: 
        {
		// do initialization stuff here
		return(0);
		} break;

    case WM_PAINT:
         {
         // start painting
         hdc = BeginPaint(hwnd,&ps);

         // end painting
         EndPaint(hwnd,&ps);
         return(0);
        } break;

	case WM_DESTROY: 
		{
		// kill the application			
		PostQuitMessage(0);
		return(0);
		} break;

	default:break;

    } // end switch

// process any messages that we didn't take care of 
return (DefWindowProc(hwnd, msg, wparam, lparam));

} // end WinProc

// WINMAIN ////////////////////////////////////////////////

int WINAPI WinMain(	HINSTANCE hinstance,
					HINSTANCE hprevinstance,
					LPSTR lpcmdline,
					int ncmdshow)
{
// this is the winmain function

WNDCLASSEX winclass; // this will hold the class we create
HWND	   hwnd;	 // generic window handle
MSG		   msg;		 // generic message
HDC        hdc;      // graphics device context

// first fill in the window class stucture
winclass.cbSize         = sizeof(WNDCLASSEX);
winclass.style			= CS_DBLCLKS | CS_OWNDC | 
                          CS_HREDRAW | CS_VREDRAW;
winclass.lpfnWndProc	= WindowProc;
winclass.cbClsExtra		= 0;
winclass.cbWndExtra		= 0;
winclass.hInstance		= hinstance;
winclass.hIcon			= LoadIcon(NULL, IDI_APPLICATION);
winclass.hCursor		= LoadCursor(NULL, IDC_ARROW); 
winclass.hbrBackground	= (HBRUSH)GetStockObject(BLACK_BRUSH);
winclass.lpszMenuName	= NULL;
winclass.lpszClassName	= WINDOW_CLASS_NAME;
winclass.hIconSm        = LoadIcon(NULL, IDI_APPLICATION);

// save hinstance in global
main_instance = hinstance;

// register the window class
if (!RegisterClassEx(&winclass))
	return(0);

// create the window
if (!(hwnd = CreateWindowEx(NULL,                  // extended style
                            WINDOW_CLASS_NAME,     // class
						    WINDOW_TITLE, // title
						    (WINDOWED_APP ? (WS_OVERLAPPED | WS_SYSMENU | WS_CAPTION) : (WS_POPUP | WS_VISIBLE)), 
					 	    0,0,	  // initial x,y
						    WINDOW_WIDTH,WINDOW_HEIGHT,  // initial width, height
						    NULL,	  // handle to parent 
						    NULL,	  // handle to menu
						    hinstance,// instance of this application
						    NULL)))	// extra creation parms
return(0);

// save main window handle
main_window_handle = hwnd;

if (WINDOWED_APP)
{
// now resize the window, so the client area is the actual size requested
// since there may be borders and controls if this is going to be a windowed app
// if the app is not windowed then it won't matter
RECT window_rect = {0,0,WINDOW_WIDTH-1,WINDOW_HEIGHT-1};

// make the call to adjust window_rect
AdjustWindowRectEx(&window_rect,
     GetWindowStyle(main_window_handle),
     GetMenu(main_window_handle) != NULL,
     GetWindowExStyle(main_window_handle));

// save the global client offsets, they are needed in DDraw_Flip()
window_client_x0 = -window_rect.left;
window_client_y0 = -window_rect.top;

// now resize the window with a call to MoveWindow()
MoveWindow(main_window_handle,
           0, // x position
           0, // y position
           window_rect.right - window_rect.left, // width
           window_rect.bottom - window_rect.top, // height
           TRUE);

// show the window, so there's no garbage on first render
ShowWindow(main_window_handle, SW_SHOW);
} // end if windowed


// perform all game console specific initialization
Game_Init();

// enter main event loop
while(1)
	{
	if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
		{ 
		// test if this is a quit
        if (msg.message == WM_QUIT)
           break;
	
		// translate any accelerator keys
		TranslateMessage(&msg);

		// send the message to the window proc
		DispatchMessage(&msg);
		} // end if
    
    // main game processing goes here
    Game_Main();

	} // end while

// shutdown game and release all resources
Game_Shutdown();

// return to Windows like this
return(msg.wParam);

} // end WinMain

// T3D GAME PROGRAMMING CONSOLE FUNCTIONS ////////////////

int Game_Init(void *parms)
{
// this function is where you do all the initialization 
// for your game

int index; // looping variable

int bot_anim[2];

// initialize directdraw, very important that in the call
// to setcooperativelevel that the flag DDSCL_MULTITHREADED is used
// which increases the response of directX graphics to
// take the global critical section more frequently
DDraw_Init(WINDOW_WIDTH, WINDOW_HEIGHT, WINDOW_BPP, WINDOWED_APP);

// load background image
Load_Bitmap_File(&bitmap16bit, "TREKB24.BMP");
Create_Bitmap(&background_bmp,0,0,640,480,16);
Load_Image_Bitmap16(&background_bmp, &bitmap16bit,0,0,BITMAP_EXTRACT_MODE_ABS);
Unload_Bitmap_File(&bitmap16bit);

// load the bots bitmaps