4 replies to this topic

[linhmai27]

Hello guys, i have problem with my code


tankGame.h

class myTank;
class TankSteering;
//enum KEYS{ W, S, A, D,J,K};
class TankGame{
public:
  TankGame(ALLEGRO_DISPLAY* display);
  ~TankGame();
  myTank* m_player;
  TankSteering* m_TankSteering;
  void Update();
  void Render();
};

myTank.h

class TankGame;
class TankSteering;	

class myTank : public MovingEntity {
public:
  myTank(TankGame* tank_game, Vector2D pos, ALLEGRO_DISPLAY* display);
  ~myTank();
  void Update();
  void Render();
	....blah....
private:
....blah....
  TankSteering* m_pSteering;
  TankGame* m_tankGame;

};

tankSteering.h

class myTank;
class TankGame;
class TankSteering
{
public:
  TankSteering(myTank* player, TankGame* tankGame);
  //TankSteering();
  ~TankSteering();
  Vector2D Calculate();
  Vector2D Player_Steering();
private:
  TankGame* m_pTankGame;
  float m_fMaxForce;
  myTank* m_tplayer;
  float m_fDesRateForce;
};

TankGame.cpp

TankGame::TankGame(ALLEGRO_DISPLAY* display)
{
m_player = new myTank(this, Vector2D(200.0f, 200.0f), display);
//m_TankSteering = new TankSteering(this);
for(int i = 0; i < 6; i++)
{
  keys[i] = false;
}
}
blah blah

the thing is, when i remove the line "m_player = new myTank(this, Vector2D(200.0f, 200.0f), display);" in my tankGame, it work. But when i add this line in TankGame constructor, error "error Run-Time Check Failure #0" happened. when i create an object of myTank in mainfunction, it worked. Someone can help me . Thank in advance

Edited by linhmai27, 26 November 2012 - 12:48 AM.

[Hodgman]

Can you post the code for myTank::myTank?

[linhmai27]

here is sir

#include "tankGame.h"
#include "myTank.h"
//#include "Tank_SteeringBehavior.h"
#include "Tank_Scriptor.h"
#include <allegro5\allegro.h>
#include <allegro5\allegro_primitives.h>
#include <allegro5\allegro_image.h>
myTank :: myTank(TankGame* tank_game, Vector2D pos, ALLEGRO_DISPLAY* display) : MovingEntity(pos,
				 script->GetFloat("Player_Scale"),
				 Vector2D(0,0),
				 script->GetFloat("Player_MaxSpeed"),
				 Vector2D(1,0),
				 script->GetFloat("Player_Mass"),
				 Vector2D(script->GetFloat("Player_Scale"),script->GetFloat("Player_Scale")),
				 script->GetFloat("Player_MaxHeadTurnRate"),
				 script->GetFloat("Player_MaxForce"))
{
m_tankGame = tank_game;
m_tankBody = new tankBody();
m_tankBarrel = new tankBarrel();
m_bImage = al_load_bitmap("Tankz_sprite.png"); // the entry image
int h = al_get_bitmap_height(m_bImage);
int w = al_get_bitmap_width(m_bImage);
ALLEGRO_BITMAP* tempImage;
tempImage = al_create_bitmap(w/5, h);
m_tankBody->image[0] = al_create_bitmap(w/5, h);
m_tankBody->image[1] = al_create_bitmap(w/5, h);
m_tankBarrel->image = al_create_bitmap(w/5, h);

al_set_target_bitmap(m_tankBody->image[0]);
al_draw_bitmap_region(m_bImage,0,0,40,40,0,0,1);
al_draw_tinted_bitmap_region(m_bImage, al_map_rgba_f(0.0f,1.0f,0.0f,0.5f), 80.0f, 0.0f, 40.0f, 40.0f, 0.0f, 0.0f, 1);
al_set_target_bitmap(m_tankBody->image[1]);
al_draw_bitmap_region(m_bImage,40,0,40,40,0,0,1);
al_draw_tinted_bitmap_region(m_bImage, al_map_rgba_f(0.0f,1.0f,0.0f,0.5f), 80.0f, 0.0f, 40.0f, 40.0f, 0.0f, 0.0f, 1);
al_set_target_bitmap(m_tankBarrel->image);
al_draw_bitmap_region(m_bImage,120,0,40,40,0,0,1);
al_draw_tinted_bitmap_region(m_bImage, al_map_rgba_f(0.0f,1.0f,0.8f,0.5f), 120.0f, 0.0f, 40.0f, 40.0f, 0.0f, 0.0f, 1);

al_set_target_bitmap(al_get_backbuffer(display));
//al_draw_tinted_bitmap(
//m_tankBody->position = Pos();
m_tankBody->center = Vector2D(20.0f, 20.0f);
//MovingEntity(pos, Vector2D(0,0), script->get
}
myTank :: ~myTank()
{
}

void myTank :: Update()
{
}
void myTank :: UpdateMovement()
{
// Vector2D force = m_pSteering->Calculate();
  //if no steering force is produced decelerate the player by applying a
  //braking force
  //if (m_pSteering->Force().isZero())
  //{
  //  const double BrakingRate = 0.8;
  //  m_vVelocity = m_vVelocity * BrakingRate;									
  //}
  //calculate the acceleration
  Vector2D accel = m_V2Dforce / m_dMass;
  //update the velocity
  m_vVelocity += accel;
  //make sure vehicle does not exceed maximum velocity
  m_vVelocity.Truncate(m_dMaxSpeed);
  //update the position
  m_vPosition += m_vVelocity;
  //if the vehicle has a non zero velocity the heading and side vectors must
  //be updated
  if (!m_vVelocity.isZero())
  {   
    m_vHeading = Vec2DNormalize(m_vVelocity);
    m_vSide = m_vHeading.Perp();
  }
}
void myTank :: Render()
{
al_draw_bitmap(m_tankBody->image[0], Pos().x, Pos().y, 0);
al_draw_bitmap(m_tankBarrel->image, Pos().x, Pos().y, 0);
}

[Ashaman73]

I don't know allergro, but what about the 'script' var in the constructor of myTank ? It seems to be a global var, is it already initialized when accessing it in the constructor ?

Edited by Ashaman73, 26 November 2012 - 01:19 AM.

[linhmai27]

thank for reading my topic. When i create object of myTank in main function, and render it. All things work.

but when i create object of TankGame in main function( it include instance of mytTank, it call constructor of m_player, and in debug mode, it goes to the end of TankGame constructor ( in this case, it created myTank object ),it raise "error Run-Time Check Failure #0" here

script is an singleton class, and i tested it, it worked.

#ifndef TANK_SCRIPTOR
#define TANK_SCRIPTOR
#pragma warning (disable:4786)
//-----------------------------------------------------------------------------
//
//  Name:   Raven_Scriptor
//
//  Author: Mat Buckland (www.ai-junkie.com)
//
//  Desc:   A Singleton Scriptor class for use with the Raven project
//-----------------------------------------------------------------------------
#include <script\Scriptor.h>
#define script Tank_Scriptor::Instance()
class Tank_Scriptor : public Scriptor
{
private:
 
  Tank_Scriptor();
  //copy ctor and assignment should be private
  Tank_Scriptor(const Tank_Scriptor&);
  Tank_Scriptor& operator=(const Tank_Scriptor&);
public:
  static Tank_Scriptor* Instance();
};

#endif

Edited by linhmai27, 26 November 2012 - 01:29 AM.