Help using Sparky's Collision - GameCreators Forum

Author

Message

Movian

16

Years of Service

User Offline

Joined: 5th Mar 2008

Location:

Posted: 10th Mar 2008 03:10

Link

Hi,
after doing some searching for help on collision detection. I found many posts suggesting Sparky's Collision. So i have installed it and it seems to be running correctly. However i am having some troubles implementing it. I have created some Terrain with a skybox, textured the terrain and given it some detail. I have also created a sphere object and given control to the up and down keys. However i am having problems detecting collision between the sphere and the terrain object... i have included the snippets from the applicable cpp files.

Main.cpp

+ Code Snippet

// The Sanitarium Project - Movian - Richard Burgess - 08/03/2008
#include "DarkGDK.h"
#include "MovCon.h"
#include "Environment.h"
#include "Ball.h"
#include "SC_Collision.h"

void DarkGDK ( void )
{
	SC_Start( );
	//set Window Options
	dbSyncOn   ( );
	dbSyncRate ( 60 );
	
	CreateEnvironment ();
	
	//Configure Camera To be Within Terrain
	dbSetCameraRange ( 1.0f, 30000.0f );
	dbPositionCamera (380,20,100);

	CreateBall ();

	while ( LoopGDK ( ) )
	{
		char str [ 128 ];
		sprintf_s( str, 128, "FPS: %d", dbScreenFPS( ) );		dbText( 0,80,str );
		sprintf_s( str, 128, "Ball Collision: %d", SC_CollisionStatus (3));	dbText( 0,90,str);
		sprintf_s( str, 128, "Floor Collision: %d", SC_CollisionStatus (1));	dbText( 0,100,str);

		MoveBall ();
		MovCon ();

		dbUpdateTerrain ();
		dbSync ();
	}

	return;
}

Ball.cpp

+ Code Snippet

#include "DarkGDK.h"
#include "Ball.h"
#include "SC_Collision.h"

void CreateBall (void)
{
	
	dbMakeObjectSphere (3,10);
	dbColorObject (3,dbRGB(255,0,0));
	dbPositionObject (3,380,90,90);
	dbSetObjectSmoothing (10,50);
	SC_SetupObject (3, 0, 1);
	SC_SetObjectCollisionOn (3);
}

void MoveBall (void)
{
	
	if (dbDownKey () == 1)
	{
		dbMoveObjectDown (3,0.5);
	}
	if (dbUpKey () == 1 )
	{
		dbMoveObjectUp (3,0.5);
	}
	
	SC_UpdateObject(3);
	SC_UpdateObject(1);
}

Environment.cpp

+ Code Snippet

#include "DarkGDK.h"
#include "Environment.h"
#include "SC_Collision.h"

void CreateEnvironment (void)
{
	//Loading Resources
	dbLoadImage ("Resources/texture.jpg",1);
	dbLoadImage ("Resources/detail.jpg",2);
	
	//Initiating Terrain For BG Scenery
	dbSetupTerrain ();
	dbMakeObjectTerrain(1);
	dbSetTerrainHeightMap (1,"Resources/Map.bmp");
	dbSetTerrainScale (1,3.0f,0.6f,3.0f);
	dbSetTerrainLight (1,1.0f,-2.25f,0.0f,1.0f,1.0f,0.78f,0.5f);
	dbSetTerrainTexture (1,1,2);
	dbBuildTerrain (1);
	SC_SetupTerrainObject (1,1,9);

	dbLoadObject ( "Resources/skybox2.x", 2 );
	dbSetObjectLight ( 2, 0 );
	dbScaleObject ( 2, 30000, 30000, 30000 );

}

MovCon is just some simple mouse click move code.

the result is i get a 1 on the collision detection for both objects at all times weather they are actually colliding or not.

Any help apriciated

Back to top

Profile PM Website

Movian

16

Years of Service

User Offline

Joined: 5th Mar 2008

Location:

Posted: 10th Mar 2008 08:26

Link

ok after many hours perseverance i figured out i was using the wrong command! 'DOH!!

At any rate i have now been to set it up so that my object changes colour when it dtects a collision and change direction. (based on a tutorial i found on the forum.) however the ball still does not seem to bounce correctly...
again any help would be apriciated .
Main.cpp

// The Sanitarium Project - Movian - Richard Burgess - 08/03/2008
#include "DarkGDK.h"
#include "MovCon.h"
#include "Environment.h"
#include "Ball.h"
#include "SC_Collision.h"
#include "globstruct.h"

//Inlcuded as a fix - *Fix still dosn't show window
void dbExitPrompt(const char* Msg, const char* Title)
{
    dbHideWindow();
    MessageBox( g_pGlob->hWnd, Msg, Title, MB_OK );
    PostQuitMessage( 0 );
    ExitProcess( 0 );
}

void DarkGDK ( void )
{
	SC_Start( );
	//set Window Options
	dbSyncOn   ( );
	dbSyncRate ( 60 );
	dbSetWindowTitle ("The Sanitarium Project");

CreateEnvironment ();
	CreateBall ();
	
	//Configure Camera To be Within Terrain
	dbSetCameraRange ( 1.0f, 30000.0f );
	dbPositionCamera (dbObjectPositionX (3), dbObjectPositionY (3), dbObjectPositionZ(3));
	dbMoveCamera (-50);
	
	while ( LoopGDK ( ) )
	{
		//Display FPS and Ball Collision INformation
		char str [ 128 ];
		sprintf_s( str, 128, "FPS: %d", dbScreenFPS( ) );		dbText( 0,80,str );
		sprintf_s( str, 128, "Ball Collision: %d", SC_ObjectCollision (3,0));	dbText( 0,90,str);
		
		//When COllision Detected Change Ball COlour and change Ball Direction
		if (SC_ObjectCollision (3,0) > 0)
		{
			dbColorObject (3,dbRGB(0,255,0));
			dbPointObject (3, SC_GetStaticCollisionX () + SC_GetCollisionBounceX (), SC_GetStaticCollisionX () + SC_GetCollisionBounceY (), SC_GetStaticCollisionZ () + SC_GetCollisionBounceZ ());
		}
		else
		{
			dbColorObject (3,dbRGB(255,0,0));
		}

//When left Click fire ball from camera position *still not quite working*
		if (dbMouseClick () == 1 )
		{
			dbPositionObject (3,dbCameraPositionX (), dbCameraPositionY (), dbCameraPositionZ ());
			dbPointObject (3, dbCameraAngleX (), dbCameraPositionY (), dbCameraPositionZ ());
			dbMoveObject (3, 10);
		}

//call moves ball with speed int
		MoveBall (0.5);	
		MovCon ();

if (dbEscapeKey() == 1)
		{
			dbExitPrompt ("Leaving The Sanitarium Project","Quit");
		}

dbUpdateTerrain ();
		dbSync ();
	}

return;
}

+ Code Snippet

// The Sanitarium Project - Movian - Richard Burgess - 08/03/2008
#include "DarkGDK.h"
#include "MovCon.h"
#include "Environment.h"
#include "Ball.h"
#include "SC_Collision.h"
#include "globstruct.h"

//Inlcuded as a fix - *Fix still dosn't show window
void dbExitPrompt(const char* Msg, const char* Title)
{
    dbHideWindow();
    MessageBox( g_pGlob->hWnd, Msg, Title, MB_OK );
    PostQuitMessage( 0 );
    ExitProcess( 0 );
}

void DarkGDK ( void )
{
	SC_Start( );
	//set Window Options
	dbSyncOn   ( );
	dbSyncRate ( 60 );
	dbSetWindowTitle ("The Sanitarium Project");

	CreateEnvironment ();
	CreateBall ();
	
	//Configure Camera To be Within Terrain
	dbSetCameraRange ( 1.0f, 30000.0f );
	dbPositionCamera (dbObjectPositionX (3), dbObjectPositionY (3), dbObjectPositionZ(3));
	dbMoveCamera (-50);
	
	while ( LoopGDK ( ) )
	{
		//Display FPS and Ball Collision INformation
		char str [ 128 ];
		sprintf_s( str, 128, "FPS: %d", dbScreenFPS( ) );		dbText( 0,80,str );
		sprintf_s( str, 128, "Ball Collision: %d", SC_ObjectCollision (3,0));	dbText( 0,90,str);
		
		//When COllision Detected Change Ball COlour and change Ball Direction
		if (SC_ObjectCollision (3,0) > 0)
		{
			dbColorObject (3,dbRGB(0,255,0));
			dbPointObject (3, SC_GetStaticCollisionX () + SC_GetCollisionBounceX (), SC_GetStaticCollisionX () + SC_GetCollisionBounceY (), SC_GetStaticCollisionZ () + SC_GetCollisionBounceZ ());
		}
		else
		{
			dbColorObject (3,dbRGB(255,0,0));
		}

		//When left Click fire ball from camera position *still not quite working*
		if (dbMouseClick () == 1 )
		{
			dbPositionObject (3,dbCameraPositionX (), dbCameraPositionY (), dbCameraPositionZ ());
			dbPointObject (3, dbCameraAngleX (), dbCameraPositionY (), dbCameraPositionZ ());
			dbMoveObject (3, 10);
		}

		//call moves ball with speed int
		MoveBall (0.5);	
		MovCon ();
	

		if (dbEscapeKey() == 1)
		{
			dbExitPrompt ("Leaving The Sanitarium Project","Quit");
		}

		dbUpdateTerrain ();
		dbSync ();
	}

	return;
}

Environment.cpp

+ Code Snippet

#include "DarkGDK.h"
#include "Environment.h"
#include "SC_Collision.h"

void CreateEnvironment (void)
{
	//Loading Resources
	dbLoadImage ("Resources/texture.jpg",1);
	dbLoadImage ("Resources/detail.jpg",2);
	
	//Initiating Terrain For BG Scenery
	dbSetupTerrain ();
	dbMakeObjectTerrain(1);
	dbSetTerrainHeightMap (1,"Resources/Map.bmp");
	dbSetTerrainScale (1,3.0f,0.6f,3.0f);
	dbSetTerrainLight (1,1.0f,-2.25f,0.0f,1.0f,1.0f,0.78f,0.5f);
	dbSetTerrainTexture (1,1,2);
	dbBuildTerrain (1);
	SC_SetupTerrainObject (1,0,9);
	SC_SetObjectCollisionOn (1);

	dbLoadObject ( "Resources/skybox2.x", 2 );
	dbSetObjectLight ( 2, 0 );
	dbScaleObject ( 2, 30000, 30000, 30000 );

}

Ball.cpp

+ Code Snippet

#include "DarkGDK.h"
#include "Ball.h"
#include "SC_Collision.h"

void CreateBall (void)
{
	//Sets up all Ball Object Properties Including Collision
	dbMakeObjectSphere (3,10);
	dbColorObject (3,dbRGB(255,0,0));
	dbPositionObject (3,380,90,90);
	dbSetObjectSmoothing (3,100);
	SC_SetupObject (3, 0, 1);
	SC_SetObjectCollisionOn (3);
}

float newx,newy,newz;

void MoveBall (float speed)
{
	//Moves and updates Ball object
	dbMoveObject (3,speed);
	SC_UpdateObject(3);
	SC_UpdateObject(1);
}

Back to top

Profile PM Website

Sorry your browser is not supported!

Dark GDK / Help using Sparky's Collision