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StuntCarRacer.cpp
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//--------------------------------------------------------------------------------------
// File: StuntCarRacer.cpp
//
// NOTE: This project builds with Microsoft Visual C++ 2008 Express Edition and requires
// Microsoft DirectX SDK (April 2007). It is based on examples from that DirectX SDK.
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//--------------------------------------------------------------------------------------
#include "dxstdafx.h"
#include "resource.h"
#include "StuntCarRacer.h"
#include "3D_Engine.h"
#include "Backdrop.h"
#include "Track.h"
#include "Car.h"
#include "Car_Behaviour.h"
#include "Opponent_Behaviour.h"
#include "wavefunctions.h"
#include "Atlas.h"
#include "version.h"
#ifdef linux
#include <unistd.h>
#define STRING "%S"
#else
#define STRING L"%s"
#endif
#ifdef __EMSCRIPTEN__
#include <emscripten.h>
#endif
//-----------------------------------------------------------------------------
// Defines, constants, and global variables
//-----------------------------------------------------------------------------
#ifdef linux
#define DEFAULT_FRAME_GAP (6) // 4 Used to limit frame rate. Amiga StuntCarRacer uses value of 6 (called MIN.FRAMES)
#else
#define DEFAULT_FRAME_GAP (4)
#endif
#define HEIGHT_ABOVE_ROAD (100)
#define FURTHEST_Z (131072.0f)
GameModeType GameMode = TRACK_MENU;
// Both the following are used for keyboard input
UINT keyPress = '\0';
DWORD lastInput = 0;
static IDirectSound8 *ds;
IDirectSoundBuffer8 *WreckSoundBuffer = NULL;
IDirectSoundBuffer8 *HitCarSoundBuffer = NULL;
IDirectSoundBuffer8 *GroundedSoundBuffer = NULL;
IDirectSoundBuffer8 *CreakSoundBuffer = NULL;
IDirectSoundBuffer8 *SmashSoundBuffer = NULL;
IDirectSoundBuffer8 *OffRoadSoundBuffer = NULL;
IDirectSoundBuffer8 *EngineSoundBuffers[8] = {NULL};
IDirect3DTexture9 *g_pAtlas = NULL;
int wideScreen = 0;
static long frameGap = DEFAULT_FRAME_GAP;
static bool bFrameMoved = FALSE;
bool bShowStats = FALSE;
bool bNewGame = FALSE;
bool bPaused = FALSE;
bool bPlayerPaused = FALSE;
bool bOpponentPaused = FALSE;
long bTrackDrawMode = 0;
bool bOutsideView = FALSE;
long engineSoundPlaying = FALSE;
double gameStartTime, gameEndTime;
bool bSuperLeague = FALSE;
#if defined(DEBUG) || defined(_DEBUG)
FILE *out;
bool bTestKey = FALSE;
char OutputFile[] = "SCRlog.txt";
long VALUE1 = 1, VALUE2 = 2, VALUE3 = 3;
#endif
extern long TrackID;
extern long boostReserve, boostUnit, StandardBoost, SuperBoost;
extern long INITIALISE_PLAYER;
extern bool raceFinished, raceWon;
extern long lapNumber[];
// League / Super League variable
extern long damaged_limit;
extern long road_cushion_value;
extern long engine_power;
extern long boost_unit_value;
extern long opp_engine_power;
//-----------------------------------------------------------------------------
// Static variables
//-----------------------------------------------------------------------------
// Player 1 orientation
static long player1_x = 0,
player1_y = 0,
player1_z = 0;
static long player1_x_angle = (0<<6),
player1_y_angle = (0<<6),
player1_z_angle = (0<<6);
// Opponent orientation
static long opponent_x = 0,
opponent_y = 0,
opponent_z = 0;
static float opponent_x_angle = 0.0f, opponent_y_angle = 0.0f, opponent_z_angle = 0.0f;
// Viewpoint 1 orientation
static long viewpoint1_x, viewpoint1_y, viewpoint1_z;
static long viewpoint1_x_angle, viewpoint1_y_angle, viewpoint1_z_angle;
// Target (lookat) point
static long target_x, target_y, target_z;
/**************************************************************************
DSInit
Description:
Initialize all the DirectSound specific stuff
**************************************************************************/
bool DSInit()
{
HRESULT err;
//
// First create a DirectSound object
err = DirectSoundCreate8(NULL, &ds, NULL);
if (err != DS_OK)
return FALSE;
//
// Now set the cooperation level
err = ds->SetCooperativeLevel(DXUTGetHWND(), DSSCL_NORMAL );
if (err != DS_OK)
return FALSE;
return TRUE;
}
/**************************************************************************
DSSetMode
Initialises all DirectSound samples etc
**************************************************************************/
bool DSSetMode()
{
int i;
// Amiga channels 1 and 2 are right side, channels 0 and 3 are left side
if ((WreckSoundBuffer = MakeSoundBuffer(ds, L"WRECK")) == NULL)
return FALSE;
WreckSoundBuffer->SetPan(DSBPAN_RIGHT);
WreckSoundBuffer->SetVolume(AmigaVolumeToDirectX(64));
if ((HitCarSoundBuffer = MakeSoundBuffer(ds, L"HITCAR")) == NULL)
return FALSE;
HitCarSoundBuffer->SetFrequency(AMIGA_PAL_HZ / 238);
HitCarSoundBuffer->SetPan(DSBPAN_RIGHT);
HitCarSoundBuffer->SetVolume(AmigaVolumeToDirectX(56));
if ((GroundedSoundBuffer = MakeSoundBuffer(ds, L"GROUNDED")) == NULL)
return FALSE;
GroundedSoundBuffer->SetFrequency(AMIGA_PAL_HZ / 400);
GroundedSoundBuffer->SetPan(DSBPAN_RIGHT);
if ((CreakSoundBuffer = MakeSoundBuffer(ds, L"CREAK")) == NULL)
return FALSE;
CreakSoundBuffer->SetFrequency(AMIGA_PAL_HZ / 238);
CreakSoundBuffer->SetPan(DSBPAN_RIGHT);
CreakSoundBuffer->SetVolume(AmigaVolumeToDirectX(64));
if ((SmashSoundBuffer = MakeSoundBuffer(ds, L"SMASH")) == NULL)
return FALSE;
SmashSoundBuffer->SetFrequency(AMIGA_PAL_HZ / 280);
SmashSoundBuffer->SetPan(DSBPAN_LEFT);
SmashSoundBuffer->SetVolume(AmigaVolumeToDirectX(64));
if ((OffRoadSoundBuffer = MakeSoundBuffer(ds, L"OFFROAD")) == NULL)
return FALSE;
OffRoadSoundBuffer->SetPan(DSBPAN_RIGHT);
OffRoadSoundBuffer->SetVolume(AmigaVolumeToDirectX(64));
if ((EngineSoundBuffers[0] = MakeSoundBuffer(ds, L"TICKOVER")) == NULL)
return FALSE;
if ((EngineSoundBuffers[1] = MakeSoundBuffer(ds, L"ENGINEPITCH2")) == NULL)
return FALSE;
if ((EngineSoundBuffers[2] = MakeSoundBuffer(ds, L"ENGINEPITCH3")) == NULL)
return FALSE;
if ((EngineSoundBuffers[3] = MakeSoundBuffer(ds, L"ENGINEPITCH4")) == NULL)
return FALSE;
if ((EngineSoundBuffers[4] = MakeSoundBuffer(ds, L"ENGINEPITCH5")) == NULL)
return FALSE;
if ((EngineSoundBuffers[5] = MakeSoundBuffer(ds, L"ENGINEPITCH6")) == NULL)
return FALSE;
if ((EngineSoundBuffers[6] = MakeSoundBuffer(ds, L"ENGINEPITCH7")) == NULL)
return FALSE;
if ((EngineSoundBuffers[7] = MakeSoundBuffer(ds, L"ENGINEPITCH8")) == NULL)
return FALSE;
for (i = 0; i < 8; i++)
{
EngineSoundBuffers[i]->SetPan(DSBPAN_LEFT);
// Original Amiga volume was 48, but have reduced this for testing
EngineSoundBuffers[i]->SetVolume(AmigaVolumeToDirectX(48/2));
}
return TRUE;
}
/**************************************************************************
DSTerm
**************************************************************************/
void DSTerm()
{
if (WreckSoundBuffer) WreckSoundBuffer->Release(), WreckSoundBuffer = NULL;
if (HitCarSoundBuffer) HitCarSoundBuffer->Release(), HitCarSoundBuffer = NULL;
if (GroundedSoundBuffer) GroundedSoundBuffer->Release(), GroundedSoundBuffer = NULL;
if (CreakSoundBuffer) CreakSoundBuffer->Release(), CreakSoundBuffer = NULL;
if (SmashSoundBuffer) SmashSoundBuffer->Release(), SmashSoundBuffer = NULL;
if (OffRoadSoundBuffer) OffRoadSoundBuffer->Release(), OffRoadSoundBuffer = NULL;
for (int i = 0; i < 8; i++)
{
if (EngineSoundBuffers[i]) EngineSoundBuffers[i]->Release(), EngineSoundBuffers[i] = NULL;
}
if (ds) ds->Release(), ds = NULL;
}
/* ======================================================================================= */
/* Function: InitialiseData */
/* */
/* Description: */
/* ======================================================================================= */
static long InitialiseData( void )
{
long success = FALSE;
#if defined(DEBUG) || defined(_DEBUG)
errno_t err;
if ((err = fopen_s( &out, OutputFile, "w" )) != 0)
return FALSE;
#endif
CreateSinCosTable();
ConvertAmigaTrack(LITTLE_RAMP);
// Seed the random-number generator with current time so that
// the numbers will be different every time we run
srand( (unsigned)time( NULL ) );
success = TRUE;
return(success);
}
/* ======================================================================================= */
/* Function: FreeData */
/* */
/* Description: */
/* ======================================================================================= */
static void FreeData( void )
{
FreeTrackData();
DSTerm();
#if defined(DEBUG) || defined(_DEBUG)
fclose( out );
#endif
// CloseAmigaRecording();
return;
}
/* ======================================================================================= */
/* Function: GetScreenDimensions */
/* */
/* Description: Provide screen width and height */
/* ======================================================================================= */
void GetScreenDimensions( long *screen_width,
long *screen_height )
{
#ifdef linux
/*const SDL_VideoInfo* info = SDL_GetVideoInfo();
*screen_width = info->current_w;
*screen_height = info->current_h; */
*screen_width = (wideScreen)?800:640;
*screen_height = 480;
#else
const D3DSURFACE_DESC *desc;
desc = DXUTGetBackBufferSurfaceDesc();
*screen_width = desc->Width;
*screen_height = desc->Height;
#endif
}
//--------------------------------------------------------------------------------------
// Colours
//--------------------------------------------------------------------------------------
#define NUM_PALETTE_ENTRIES (42+6)
//#define PALETTE_COMPONENT_BITS (8) // bits per colour r/g/b component
static PALETTEENTRY SCPalette[NUM_PALETTE_ENTRIES] =
{
{0x00, 0x00, 0x00},
{0x00, 0x00, 0x00},
{0x00, 0x00, 0x00},
{0x00, 0x00, 0x00},
{0x00, 0x00, 0x00},
{0x00, 0x00, 0x00},
{0x00, 0x00, 0x00},
{0x00, 0x00, 0x00},
{0x00, 0x00, 0x00},
{0x00, 0x00, 0x00},
// car colours 1
{0x00, 0x00, 0x00},
{0x88, 0x00, 0x22},
{0xaa, 0x00, 0x33},
{0xcc, 0x00, 0x44},
{0xee, 0x00, 0x55},
{0x22, 0x22, 0x33},
{0x44, 0x44, 0x44},
{0x33, 0x33, 0x33},
// car colours 2
{0x00, 0x00, 0x00},
{0x22, 0x00, 0x88},
{0x33, 0x00, 0xaa},
{0x44, 0x00, 0xcc},
{0x55, 0x00, 0xee},
{0x22, 0x22, 0x33},
{0x44, 0x44, 0x44},
{0x33, 0x33, 0x33},
// track colours (i.e. Stunt Car Racer car colours)
{0x00, 0x00, 0x00},
{0x99, 0x99, 0x77},
{0xbb, 0xbb, 0x99},
{0xff, 0xff, 0x00},
{0x99, 0xbb, 0x33},
{0x55, 0x77, 0x77},
{0x55, 0xbb, 0xff},
{0x55, 0x99, 0xff},
{0x33, 0x55, 0x77},
{0x55, 0x00, 0x00}, // 9
{0x77, 0x33, 0x33}, //10
{0x99, 0x55, 0x55},
{0xdd, 0x99, 0x99}, //12
{0x77, 0x77, 0x55},
{0xbb, 0xbb, 0xbb},
{0xff, 0xff, 0xff},
// extra track colours (altered super league)
{ 51, 51, 119}, // SCR_BASE_COLOUR+16
{119, 153, 119},
{ 85, 153, 85},
{0x00, 0x00, 0x55}, //19
{0x33, 0x33, 0x77}, //20
{0x99, 0x99, 0xdd}, //21
};
DWORD SCRGB (long colour_index) // return full RGB value
{
return(D3DCOLOR_XRGB(SCPalette[colour_index].peRed,
SCPalette[colour_index].peGreen,
SCPalette[colour_index].peBlue));
}
DWORD Fill_Colour, Line_Colour;
void SetSolidColour (long colour_index)
{
/*
static DWORD reducedSCPalette[NUM_PALETTE_ENTRIES];
static long first_time = TRUE;
// make all reduced palette values on first call
if (first_time)
{
long i;
for (i = 0; i < NUM_PALETTE_ENTRIES; i++)
{
// reduce R/G/B to 5/8 of original
reducedSCPalette[i] = D3DCOLOR_XRGB((5*SCPalette[i].peRed)/8,
(5*SCPalette[i].peGreen)/8,
(5*SCPalette[i].peBlue)/8);
}
first_time = FALSE;
}
Fill_Colour = reducedSCPalette[colour_index];
*/
Fill_Colour = SCRGB(colour_index);
}
void SetLineColour (long colour_index)
{
Line_Colour = SCRGB(colour_index);
}
void SetTextureColour (long colour_index)
{
Fill_Colour = SCRGB(colour_index);
}
#ifdef NOT_USED
/* ======================================================================================= */
/* Function: EnforceConstantFrameRate */
/* */
/* Description: Attempt to keep frame rate close to MAX_FRAME_RATE */
/* ======================================================================================= */
static void EnforceConstantFrameRate( long max_frame_rate )
{
static long first_time = TRUE;
static DWORD last_time_ms;
DWORD this_time_ms, frame_time_ms;
DWORD min_frame_time_ms = (1000/max_frame_rate);
long remaining_ms; // use long because it is signed (DWORD isn't)
if (first_time)
{
first_time = FALSE;
last_time_ms = timeGetTime();
}
else
{
this_time_ms = timeGetTime();
frame_time_ms = this_time_ms - last_time_ms;
remaining_ms = (long)min_frame_time_ms - (long)frame_time_ms;
last_time_ms = this_time_ms;
if (remaining_ms > 0)
{
Sleep(remaining_ms);
last_time_ms += (DWORD)remaining_ms;
}
}
return;
}
#endif
//--------------------------------------------------------------------------------------
// Global variables
//--------------------------------------------------------------------------------------
#ifdef linux
TTF_Font *g_pFont = NULL;
TTF_Font *g_pFontLarge = NULL;
GLuint g_pSprite = 0; // Texture for batching text calls
#else
ID3DXFont *g_pFont = NULL; // Font for drawing text
ID3DXFont *g_pFontLarge = NULL; // Font for drawing large text
ID3DXSprite *g_pSprite = NULL; // Sprite for batching draw text calls
#endif
#ifndef linux
//--------------------------------------------------------------------------------------
// Rejects any devices that aren't acceptable by returning false
//--------------------------------------------------------------------------------------
bool CALLBACK IsDeviceAcceptable( D3DCAPS9 *pCaps, D3DFORMAT AdapterFormat,
D3DFORMAT BackBufferFormat, bool bWindowed, void *pUserContext )
{
// Typically want to skip backbuffer formats that don't support alpha blending
IDirect3D9 *pD3D = DXUTGetD3DObject();
if( FAILED( pD3D->CheckDeviceFormat( pCaps->AdapterOrdinal, pCaps->DeviceType,
AdapterFormat, D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING,
D3DRTYPE_TEXTURE, BackBufferFormat ) ) )
return false;
return true;
}
//--------------------------------------------------------------------------------------
// Before a device is created, modify the device settings as needed
//--------------------------------------------------------------------------------------
bool CALLBACK ModifyDeviceSettings( DXUTDeviceSettings *pDeviceSettings, const D3DCAPS9 *pCaps, void *pUserContext )
{
// For the first device created if its a REF device, optionally display a warning dialog box
static bool s_bFirstTime = true;
if( s_bFirstTime )
{
s_bFirstTime = false;
if( pDeviceSettings->DeviceType == D3DDEVTYPE_REF )
DXUTDisplaySwitchingToREFWarning();
}
return true;
}
//--------------------------------------------------------------------------------------
// Create any D3DPOOL_MANAGED resources here
//--------------------------------------------------------------------------------------
HRESULT CALLBACK OnCreateDevice( IDirect3DDevice9 *pd3dDevice, const D3DSURFACE_DESC *pBackBufferSurfaceDesc, void *pUserContext )
{
HRESULT hr;
// V_RETURN( g_DialogResourceManager.OnCreateDevice( pd3dDevice ) );
// V_RETURN( g_SettingsDlg.OnCreateDevice( pd3dDevice ) );
// Initialize the fonts
V_RETURN( D3DXCreateFont( pd3dDevice, 15, 0, FW_BOLD, 1, FALSE, DEFAULT_CHARSET,
OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE,
L"Arial", &g_pFont ) );
V_RETURN( D3DXCreateFont( pd3dDevice, 25, 0, FW_BOLD, 1, FALSE, DEFAULT_CHARSET,
OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE,
L"Arial", &g_pFontLarge ) );
return S_OK;
}
//--------------------------------------------------------------------------------------
// Create any D3DPOOL_DEFAULT resources here
//--------------------------------------------------------------------------------------
HRESULT CALLBACK OnResetDevice( IDirect3DDevice9 *pd3dDevice,
const D3DSURFACE_DESC *pBackBufferSurfaceDesc, void *pUserContext )
{
HRESULT hr;
// V_RETURN( g_DialogResourceManager.OnResetDevice() );
// V_RETURN( g_SettingsDlg.OnResetDevice() );
if( g_pFont )
V_RETURN( g_pFont->OnResetDevice() );
if( g_pFontLarge )
V_RETURN( g_pFontLarge->OnResetDevice() );
// Create a sprite to help batch calls when drawing many lines of text
V_RETURN( D3DXCreateSprite( pd3dDevice, &g_pSprite ) );
if (FAILED(D3DXCreateTextureFromResource(pd3dDevice, NULL, L"ATLAS", &g_pAtlas)))
return E_FAIL;
InitAtlasCoord();
if (CreatePolygonVertexBuffer(pd3dDevice) != S_OK)
return E_FAIL;
if (CreateTrackVertexBuffer(pd3dDevice) != S_OK)
return E_FAIL;
if (CreateShadowVertexBuffer(pd3dDevice) != S_OK)
return E_FAIL;
if (CreateCarVertexBuffer(pd3dDevice) != S_OK)
return E_FAIL;
if (CreateCockpitVertexBuffer(pd3dDevice) != S_OK)
return E_FAIL;
// Set the projection transform (view and world are updated per frame)
D3DXMATRIX matProj;
FLOAT fAspect = pBackBufferSurfaceDesc->Width / (FLOAT)pBackBufferSurfaceDesc->Height;
D3DXMatrixPerspectiveFovLH( &matProj, D3DX_PI/4, fAspect, 0.5f, FURTHEST_Z );
pd3dDevice->SetTransform( D3DTS_PROJECTION, &matProj );
pd3dDevice->SetRenderState( D3DRS_ZENABLE, TRUE );
pd3dDevice->SetRenderState( D3DRS_SHADEMODE, D3DSHADE_FLAT );
pd3dDevice->SetRenderState( D3DRS_LIGHTING, FALSE );
// Disable texture mapping by default (only DrawTrack() enables it)
pd3dDevice->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_DISABLE );
return S_OK;
}
#else
// some helper functions....
void CreateFonts()
{
if(!TTF_WasInit() && TTF_Init()==-1) {
printf("TTF_Init: %s\n", TTF_GetError());
exit(1);
}
if (g_pFont==NULL)
{
g_pFont = TTF_OpenFont("DejaVuSans-Bold.ttf", 15);
}
if (g_pFontLarge==NULL)
{
g_pFontLarge = TTF_OpenFont("DejaVuSans-Bold.ttf", 25);
}
printf("Font created (%p / %p)\n", g_pFont, g_pFontLarge);
}
void CloseFonts()
{
if (g_pFont!=NULL)
{
TTF_CloseFont(g_pFont);
g_pFont = 0;
}
if (g_pFontLarge!=NULL)
{
TTF_CloseFont(g_pFontLarge);
g_pFontLarge = NULL;
}
}
void LoadTextures()
{
if (!g_pAtlas) g_pAtlas = new IDirect3DTexture9();
g_pAtlas->LoadTexture("Bitmap/atlas.png");
InitAtlasCoord();
printf("Texture loaded\n");
}
void CreateBuffers(IDirect3DDevice9 *pd3dDevice)
{
if (CreatePolygonVertexBuffer(pd3dDevice) != S_OK)
printf("Error creating PolygonVertexBuffer\n");
if (CreateTrackVertexBuffer(pd3dDevice) != S_OK)
printf("Error creating TrackVertexBuffer\n");
if (CreateShadowVertexBuffer(pd3dDevice) != S_OK)
printf("Error creating ShadowVertexBuffer\n");
if (CreateCarVertexBuffer(pd3dDevice) != S_OK)
printf("Error creating CarVertexBuffer\n");
if (CreateCockpitVertexBuffer(pd3dDevice) != S_OK)
printf("Error creating CarVertexBuffer\n");
}
#endif //!linux
/* ======================================================================================= */
/* Function: CalcTrackMenuViewpoint */
/* */
/* Description: */
/* ======================================================================================= */
static void CalcTrackMenuViewpoint( void )
{
static long circle_y_angle = 0;
short sin, cos;
long centre = (NUM_TRACK_CUBES * CUBE_SIZE)/2;
long radius = ((NUM_TRACK_CUBES - 2) * CUBE_SIZE)/PRECISION;
// Target orientation - centre of world
target_x = (NUM_TRACK_CUBES * CUBE_SIZE)/2;
target_y = 0;
target_z = (NUM_TRACK_CUBES * CUBE_SIZE)/2;
// camera moves in a circle around the track
if (!bPaused) circle_y_angle += 128;
circle_y_angle &= (MAX_ANGLE - 1);
GetSinCos(circle_y_angle, &sin, &cos);
viewpoint1_x = centre + (sin * radius);
viewpoint1_y = -CUBE_SIZE * 3;
viewpoint1_z = centre + (cos * radius);
LockViewpointToTarget(viewpoint1_x,
viewpoint1_y,
viewpoint1_z,
target_x,
target_y,
target_z,
&viewpoint1_x_angle,
&viewpoint1_y_angle);
viewpoint1_z_angle = 0;
}
/* ======================================================================================= */
/* Function: CalcTrackPreviewViewpoint */
/* */
/* Description: */
/* ======================================================================================= */
#define NUM_PREVIEW_CAMERAS (9)
static void CalcTrackPreviewViewpoint( void )
{
// Target orientation - opponent
target_x = opponent_x,
target_y = opponent_y,
target_z = opponent_z;
#ifndef PREVIEW_METHOD1
long centre = (NUM_TRACK_CUBES * CUBE_SIZE)/2;
viewpoint1_x = centre;
if (TrackID == DRAW_BRIDGE)
viewpoint1_y = opponent_y - (CUBE_SIZE*5)/2; // Draw Bridge requires a higher viewpoint
else
viewpoint1_y = opponent_y - CUBE_SIZE/2;
viewpoint1_z = centre;
viewpoint1_x += (target_x-viewpoint1_x)/2;
viewpoint1_z += (target_z-viewpoint1_z)/2;
// lock viewpoint y angle to target
LockViewpointToTarget(viewpoint1_x,
viewpoint1_y,
viewpoint1_z,
target_x,
target_y,
target_z,
&viewpoint1_x_angle,
&viewpoint1_y_angle);
#else
// cameras - four at corners, four half way along, one at centre
long camera_x[NUM_PREVIEW_CAMERAS] =
{CUBE_SIZE,
CUBE_SIZE,
(NUM_TRACK_CUBES-1) * CUBE_SIZE,
(NUM_TRACK_CUBES-1) * CUBE_SIZE,
//
0,
(NUM_TRACK_CUBES/2) * CUBE_SIZE,
(NUM_TRACK_CUBES) * CUBE_SIZE,
(NUM_TRACK_CUBES/2) * CUBE_SIZE,
//
(NUM_TRACK_CUBES/2) * CUBE_SIZE
};
long camera_z[NUM_PREVIEW_CAMERAS] =
{CUBE_SIZE,
(NUM_TRACK_CUBES-1) * CUBE_SIZE,
(NUM_TRACK_CUBES-1) * CUBE_SIZE,
CUBE_SIZE,
//
(NUM_TRACK_CUBES/2) * CUBE_SIZE,
(NUM_TRACK_CUBES) * CUBE_SIZE,
(NUM_TRACK_CUBES/2) * CUBE_SIZE,
0,
//
(NUM_TRACK_CUBES/2) * CUBE_SIZE
};
// calculate nearest camera
long camera, distance, shortest_distance = 0, nearest = 0;
double o, a;
for (camera = 0; camera < NUM_PREVIEW_CAMERAS; camera++)
{
o = double(camera_x[camera] - target_x);
a = double(camera_z[camera] - target_z);
distance = (long)sqrt((o*o) + (a*a));
if (camera == 0)
{
shortest_distance = distance;
nearest = camera;
}
else if (distance < shortest_distance)
{
shortest_distance = distance;
nearest = camera;
}
}
viewpoint1_x = camera_x[nearest];
viewpoint1_y = player1_y - CUBE_SIZE/2;
viewpoint1_z = camera_z[nearest];
LockViewpointToTarget(viewpoint1_x,
viewpoint1_y,
viewpoint1_z,
target_x,
target_y,
target_z,
&viewpoint1_x_angle,
&viewpoint1_y_angle);
#endif
viewpoint1_z_angle = 0;
}
/* ======================================================================================= */
/* Function: CalcGameViewpoint */
/* */
/* Description: */
/* ======================================================================================= */
static void CalcGameViewpoint( void )
{
long x_offset, y_offset, z_offset;
if (bOutsideView)
{
// set Viewpoint 1 to behind Player 1
// 04/11/1998 - would probably need to do a final rotation (i.e. of the trig. coefficients)
// to allow a viewpoint with e.g. a different X angle to that of the player.
// For the car this would mean the following rotations: Y,X,Z, Y,X,Z, X
// For the viewpoint this would mean the following rotations: Y,X,Z, X (possibly!)
CalcYXZTrigCoefficients(player1_x_angle,
player1_y_angle,
player1_z_angle);
// vector from centre of car
x_offset = 0;
y_offset = 0xc0;
z_offset = 0x300;
WorldOffset(&x_offset, &y_offset, &z_offset);
viewpoint1_x = (player1_x - x_offset);
viewpoint1_y = (player1_y - y_offset);
viewpoint1_z = (player1_z - z_offset);
viewpoint1_x_angle = player1_x_angle;
//viewpoint1_x_angle = (player1_x_angle + (48<<6)) & (MAX_ANGLE-1);
viewpoint1_y_angle = player1_y_angle;
//viewpoint1_y_angle = (player1_y_angle - (64<<6)) & (MAX_ANGLE-1);
viewpoint1_z_angle = player1_z_angle;
//viewpoint1_x_angle = 0;
//viewpoint1_z_angle = 0;
}
else
{
viewpoint1_x = player1_x;
viewpoint1_y = player1_y - (HEIGHT_ABOVE_ROAD << LOG_PRECISION);
// viewpoint1_y = player1_y - (90 << LOG_PRECISION);
viewpoint1_z = player1_z;
viewpoint1_x_angle = player1_x_angle;
viewpoint1_y_angle = player1_y_angle;
viewpoint1_z_angle = player1_z_angle;
}
}
//--------------------------------------------------------------------------------------
// Handle updates to the scene
//--------------------------------------------------------------------------------------
static D3DXMATRIX matWorldTrack, matWorldCar, matWorldOpponentsCar;
static void SetCarWorldTransform( void )
{
D3DXMATRIX matRot, matTemp, matTrans;
D3DXMatrixIdentity(&matRot);
float xa = (((float)player1_x_angle * 2 * D3DX_PI) / 65536.0f);
float ya = (((float)player1_y_angle * 2 * D3DX_PI) / 65536.0f);
float za = (((float)player1_z_angle * 2 * D3DX_PI) / 65536.0f);
// Produce and combine the rotation matrices
D3DXMatrixRotationZ(&matTemp, za);
D3DXMatrixMultiply(&matRot, &matRot, &matTemp);
D3DXMatrixRotationX(&matTemp, xa);
D3DXMatrixMultiply(&matRot, &matRot, &matTemp);
D3DXMatrixRotationY(&matTemp, ya);
D3DXMatrixMultiply(&matRot, &matRot, &matTemp);
// Produce the translation matrix
// Position car slightly higher than wheel height (VCAR_HEIGHT/4) so wheels are fully visible
D3DXMatrixTranslation( &matTrans, (float)(player1_x>>LOG_PRECISION), (float)(-player1_y>>LOG_PRECISION)+VCAR_HEIGHT/3, (float)(player1_z>>LOG_PRECISION) );
// Combine the rotation and translation matrices to complete the world matrix
D3DXMatrixMultiply(&matWorldCar, &matRot, &matTrans);
}
static void SetOpponentsCarWorldTransform( void )
{
D3DXMATRIX matRot, matTemp, matTrans;
D3DXMatrixIdentity(&matRot);
// float xa = (((float)opponent_x_angle * 2 * D3DX_PI) / 65536.0f);
// float ya = (((float)opponent_y_angle * 2 * D3DX_PI) / 65536.0f);
// float za = (((float)opponent_z_angle * 2 * D3DX_PI) / 65536.0f);
// Produce and combine the rotation matrices
D3DXMatrixRotationZ(&matTemp, opponent_z_angle);
D3DXMatrixMultiply(&matRot, &matRot, &matTemp);
D3DXMatrixRotationX(&matTemp, opponent_x_angle);
D3DXMatrixMultiply(&matRot, &matRot, &matTemp);
D3DXMatrixRotationY(&matTemp, opponent_y_angle);
D3DXMatrixMultiply(&matRot, &matRot, &matTemp);
// Produce the translation matrix
// Position car at wheel height (VCAR_HEIGHT/4)
D3DXMatrixTranslation( &matTrans, (float)(opponent_x>>LOG_PRECISION), (float)(-opponent_y>>LOG_PRECISION)+VCAR_HEIGHT/4, (float)(opponent_z>>LOG_PRECISION) );
// Combine the rotation and translation matrices to complete the world matrix
D3DXMatrixMultiply(&matWorldOpponentsCar, &matRot, &matTrans);
}
static void StopEngineSound( void )
{
if (engineSoundPlaying)
{
for (int i = 0; i < 8; i++)
EngineSoundBuffers[i]->Stop();
engineSoundPlaying = FALSE;
}
}
void CALLBACK OnFrameMove( IDirect3DDevice9 *pd3dDevice, double fTime, float fElapsedTime, void *pUserContext )
{
static D3DXVECTOR3 vUpVec( 0.0f, 1.0f, 0.0f );
static long frameCount = 0;
DWORD input = lastInput; // take copy of user input
D3DXMATRIX matRot, matTemp, matTrans, matView;
#ifndef linux
// crude 60fps cap method...
static float lastFrame = 0.0f;
#define FPSMAX (1.0f/60.f)
lastFrame += fElapsedTime;
if (lastFrame < FPSMAX)
return;
lastFrame -= FPSMAX;
#endif
bFrameMoved = FALSE;
// VALUE3 = frameGap;
if (GameMode == GAME_OVER)
{
StopEngineSound();
return;
}
if (bPaused)
{
StopEngineSound();
}
if (TrackID == NO_TRACK)
return;
// Track preview and game mode run at reduced frame rate
if ((GameMode == TRACK_PREVIEW) || (GameMode == GAME_IN_PROGRESS))
{
if (GameMode == GAME_IN_PROGRESS)
{
// Following function should run at 50Hz
if (!bPaused) FramesWheelsEngine(EngineSoundBuffers);
}
if (frameCount > 0)
--frameCount;
if (frameCount == 0)
{
frameCount = frameGap;
//DXUTPause( false, false ); //pausing doesn't work properly
}
else
{
//if (frameCount == frameGap-1) DXUTPause( true, true ); //pausing doesn't work properly
return;
}
}
else if (GameMode == TRACK_MENU)
{
// Stop engine sound if at track menu or if game has finished
StopEngineSound();
}
if ((GameMode == GAME_IN_PROGRESS) && (keyPress == 'R'))
{
// point car in opposite direction
player1_y_angle += _180_DEGREES;
player1_y_angle &= (MAX_ANGLE-1);
INITIALISE_PLAYER = TRUE;
keyPress = '\0';
}
if (!bPaused)
MoveDrawBridge();
// Car behaviour
if ((GameMode == TRACK_PREVIEW) || (GameMode == GAME_IN_PROGRESS))
{
if (!bPaused)
{
if ((GameMode == GAME_IN_PROGRESS) && (!bPlayerPaused))
CarBehaviour(input,
&player1_x,
&player1_y,
&player1_z,
&player1_x_angle,