ironsam

how do you input VK with two characters for example VK_LEFT_UP or something  like that.

This program is supposed to make a sonic sprite go left, right, up, down, and vertical but when i press the left to does no do anything then when i press right it does not go right but after i press them times ican go left and right then icant move until i press them again and it just repeats over and over. then when i press up it goes up it works but then if I press down it gose up and it just repeats and it just gose vertical at random i use an engine that i include that has a lot of files that it includes.

#include "..\Engine\Advanced2D.h"
//
using namespace Advanced2D;
#define SCREENW 1024
#define SCREENH 768
#define OBJECT_SPRITE 60
#define OBJECT_BACKGROUND 1
#define MAX 1
Sprite *p;
Texture *ball_image;
Texture *sonic_run_left;
Sprite *cursor;
Sprite *sprite;
Sample *music;
float vy;
float vx;

bool game_preload()
{
g_engine->setAppTitle("INPUT DEMO");
g_engine->setFullscreen(false);
g_engine->setScreenWidth(1024);
g_engine->setScreenHeight(739);
g_engine->setColorDepth(32);
return 1;
}
bool game_init(HWND)
{
   //load background image
Sprite *background = new Sprite();
if (!background->loadImage("arz1.png")) {
  g_engine->message("Error loading craters.tga");
  return false;
}
  background->setObjectType(OBJECT_BACKGROUND);
background->setCollidable(false);
g_engine->addEntity(background);

p = new Sprite();
p->loadImage("sonic_run_forward.png");
p->setDirection(0);
p->setScale(1.5f);
//load cursor
cursor = new Sprite();
cursor->loadImage("particle16.tga");
  
   //load asteroid image
sonic_run_left = new Texture();
if (!sonic_run_left->Load("sonic_run_left.png")) {
  return false;
}
  
ball_image = new Texture();
if (!ball_image->Load("lightningball.tga")) {
  //g_engine->message("Error loading lightningball.tga");
  return false;
}
  
//create sprites

for (int n=0; n < MAX; n++)
{
  //create a new sprite
  sprite = new Sprite();
  sprite->setObjectType(OBJECT_SPRITE);
  sprite->setImage(ball_image);
  sprite->setSize(40,40);
  sprite->setScale( 2.0 );
  sprite->setPosition((SCREENW/2) , (SCREENH/2)-10 );
  

  //add sprite to the entity manager
  g_engine->addEntity(sprite);
}

//load independent sample
music = new Sample();
music = g_engine->audio->Load("arz.mp3");
if (!music) {
g_engine->message("Error loading wobble.wav");
return false;
}
//play music
g_engine->audio->Play(music);  
  
return true;
}
void game_update()
{
}
void game_keyPress(int key)
{
  /*if(GetKeyState(VK_RIGHT))
   {

sprite->setVelocity( -6.0, 6.0 );
}*/

//set velocity
/*
switch (key)
{
  */
  

//case DIK_DOWN:
if(GetKeyState(VK_DOWN))
   {
  //vx = spr->getVelocity().getX();
  //double vy = spr->getVelocity().getY();
//vx = 0;
vy = 2.0;
sprite->setVelocity( vx, vy );
sprite->setTotalFrames(8);
  sprite->setColumns(8);
  sprite->setSize(40,40);
  sprite->setFrameTimer(40);
Sleep(1);
//break;
   }
  
if(GetKeyState(VK_UP))
   {  
//case DIK_UP:
//vx = 0;
vy = -2.0;
sprite->setVelocity( vx, vy );
sprite->setTotalFrames(8);
  sprite->setColumns(8);
  sprite->setSize(40,40);
  sprite->setFrameTimer(40);
Sleep(1);
//break;
}
  
  

if(GetKeyState(VK_RIGHT)== 1)
   {
//case DIK_LEFT:
sprite->setImage(sonic_run_left);
vx = -2.0;
//vy = 0;
sprite->setVelocity( vx, vy );
sprite->setTotalFrames(8);
  sprite->setColumns(8);
  sprite->setSize(40,40);
  sprite->setFrameTimer(40);
//break;
}

if(GetKeyState(VK_LEFT)== 1)
   {  
//case DIK_RIGHT:
sprite->setImage(ball_image);
vx = 2.0;
//vy = 0;
sprite->setVelocity( vx, vy);
sprite->setTotalFrames(8);
  sprite->setColumns(8);
  sprite->setSize(40,40);
  sprite->setFrameTimer(40);
  
//break;
   }

} //key press
void game_keyRelease(int key)
{
/*
switch (key)
{
  case DIK_DOWN:
  //vx = 0;
   vy = 0;
   sprite->setVelocity( vx, vy );
  sprite->setTotalFrames(1);
  break;

  case DIK_UP:
   //vx = 0;
   vy = 0;
   sprite->setVelocity( vx, vy );
   sprite->setTotalFrames(1);
  break;


  case DIK_LEFT:
  vx = 0;
   //vy = 0;
   sprite->setVelocity( vx, vy );
  sprite->setTotalFrames(1);
  break;


  case DIK_RIGHT:
  vx = 0;
   //vy = 0;
   sprite->setVelocity( vx, vy );
   sprite->setTotalFrames(1);
  break;
  } //switch
  */
  if(GetKeyState(VK_UP))
   {
//case DIK_LEFT:
sprite->setImage(sonic_run_left);
vx = 0.0;
vy = 0;
sprite->setVelocity( vx, vy );
sprite->setTotalFrames(1);
  sprite->setColumns(1);
  sprite->setSize(40,40);
  sprite->setFrameTimer(0);
//break;
//Sleep(150);
}
  if(GetKeyState(VK_DOWN))
   {
//case DIK_LEFT:
sprite->setImage(sonic_run_left);
vx = 0.0;
vy = 0;
sprite->setVelocity( vx, vy );
sprite->setTotalFrames(1);
  sprite->setColumns(1);
  sprite->setSize(40,40);
  sprite->setFrameTimer(0);
//break;
//Sleep(150);
}

   if(GetKeyState(VK_RIGHT))
   {
//case DIK_LEFT:
sprite->setImage(sonic_run_left);
vx = 0.0;
//vy = 0;
sprite->setVelocity( vx, vy );
sprite->setTotalFrames(1);
  sprite->setColumns(1);
  sprite->setSize(40,40);
  sprite->setFrameTimer(0);
//break;
//Sleep(150);
}

   if(GetKeyState(VK_LEFT))
   {  
//case DIK_RIGHT:
sprite->setImage(ball_image);
vx = 0.0;
//vy = 0;
sprite->setVelocity( vx, vy );
sprite->setTotalFrames(1);
  sprite->setColumns(1);
  sprite->setSize(40,40);
  sprite->setFrameTimer(0);
//break;
   }

if (key == DIK_ESCAPE) g_engine->Close();
}
void game_mouseButton(int button)
{
switch(button) {
case 0: //button 1
break;
}
}
void game_mouseMotion(int x,int y)
{
}
void game_mouseMove(int x,int y)
{
float fx = (float)x;
float fy = (float)y;
}
void game_mouseWheel(int wheel)
{
}

void game_render3d()
{
g_engine->ClearScene(D3DCOLOR_XRGB(0,0,0));
}
void game_render2d()
{
g_engine->SetIdentity();
}

void game_end()
{
delete p;
delete ball_image;
delete cursor;
}

void game_entityUpdate(Advanced2D::Entity* entity)
{
switch(entity->getObjectType())
{
  case OBJECT_SPRITE:
   Sprite* spr = (Sprite*)entity;
   double w = (double)spr->getWidth() * spr->getScale();
   double h = (double)spr->getHeight() * spr->getScale();
   double vx = spr->getVelocity().getX();
   double vy = spr->getVelocity().getY();
   if (spr->getX() < 0) {
spr->setX(0);
//vx = fabs(vx);
   }
   else if (spr->getX() > SCREENW-w) {
spr->setX(SCREENW-w);
//vx = fabs(vx) * -1;
   }
   if (spr->getY() < 0) {
spr->setY(0);
//vy = fabs(vy);
   }
   //set floor//
   else if (spr->getY() > ((SCREENH)/2)-10) {
spr->setY(((SCREENH)/2)-10);
//vy = fabs(vy) * -1;
   }
   //spr->setVelocity(vx,vy);
   break;
}
}
void game_entityCollision(Advanced2D::Entity* entity1,Advanced2D::Entity* entity2){}
void game_entityRender(Advanced2D::Entity* entity) { }