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#include "DarkGDK.h"

//Declare Global Variables
	float Vx=0.0f;
	float Vy=0.0f;
	float PosX=0.0f;
	float PosY=0.0f;
	float Gravity = 0.2f;
	float GroundFriction = 0.05f;
	bool Ground=true;
	int JumpLeft=1;
	int SpacePressed=0;
	char str[128]="";


void DarkGDK(void)
{
	dbSyncOn   ( );
	dbSyncRate ( 60 );

	//Make Player
	dbMakeObjectSphere(1,10);//by default objects are created at 0,0,0

	//Make "Ground"
	dbMakeObjectBox(2,400,10,10);//There will be no collision detection, just a simulation
	dbPositionObject(2,0,-10,0);

	//Position Camera
	dbPositionCamera(0,20,-100);

	while(LoopGDK())
	{

///////////
//Jump Code

		if(dbSpaceKey()){SpacePressed++;}//Pressed Jump Key
		else{SpacePressed=0;}//Did not press Jump Key

		if(PosY < 0.1f)//Player is touching ground, reset jumpstate
		{
			Ground=true;
			JumpLeft=1;
			Vy=0.0f;
		}
		else{Ground=false;}//Player not touching ground

		if(SpacePressed==1)//We only want to detect when the Jumpkey was pressed.
		{
			if(JumpLeft>0){Vy=4;JumpLeft--;Ground=false;}//add vertical force, and will no longer be on ground
		}

		if(Ground==false){Vy=Vy-Gravity;}//Player is not touching ground, apply gravity

		PosY=PosY+Vy;//Make changes to Y position

		

//End Jump code
///////////////

/////////////////////////
//Horizontal movement Code

		//Add Horizontal movement depending on what key is pressed
		if(dbLeftKey()){Vx=-2.0f;}
		if(dbRightKey()){Vx=2.0f;}

		//This code stops the player absolutely
		if(Vx<0.5f && Vx>-0.5f){Vx=0.0f;}

		//Ground Friction
		if(Ground==true)
		{
			if(Vx>0.5f){Vx=Vx-GroundFriction;}
			if(Vx<-0.5f){Vx=Vx+GroundFriction;}
		}

		PosX=PosX+Vx;

//End Horizontal movement
/////////////////////////

		dbPositionObject(1,PosX,PosY,0);//position player

		sprintf_s( str, 128, "Position X: %f", dbObjectPositionX(1) );dbText( 0,dbScreenHeight()-40,str);
		sprintf_s( str, 128, "Position Y: %f", dbObjectPositionY(1) );dbText( 0,dbScreenHeight()-20,str);
		sprintf_s( str, 128, "JumpLeft: %d", JumpLeft );dbText( dbScreenWidth()-100,dbScreenHeight()-60,str);
		sprintf_s( str, 128, "Ground: %d", Ground );dbText( dbScreenWidth()-80,dbScreenHeight()-40,str);
		sprintf_s( str, 128, "FPS: %d", dbScreenFPS( ) );dbText( dbScreenWidth()-60,dbScreenHeight()-20,str);
		dbSync();//Update camera
	}
}

		// do normal gravity falling if not jumping

		if (!player_jump)
		{

			dbPositionObject(temp_obj,tempx,tempy-2,tempz);
			SC_UpdateObject(temp_obj);

			// The scenery is in group 1
			if (SC_GroupCollision(temp_obj,1))
			{
				dbPositionObject(temp_obj,tempx,tempy,tempz);
			}
			else
			{
				tempy-=2;
			}

		}

		// conrtol players jumping instead

		else

		{
			dbPositionObject(temp_obj,tempx,tempy+player_jump_speed,tempz);
			SC_UpdateObject(temp_obj);
			// have we hit anything while jumping?
			if (SC_GroupCollision(temp_obj,1))
			{
				// put player back and cancel jump
				dbPositionObject(temp_obj,tempx,tempy,tempz);
				player_jump=false;
			}
			// sort out jump vector
			else
			{
				tempy+=player_jump_speed;

				player_jump_speed-=0.15;

				// have we finished the jump cycle
				if (player_jump_speed<-5.0f)
					player_jump=false;
			}
		}

		// if not jumping and space pressed then start jumping
		if (dbKeyState(0x39) && !player_jump)
		{
			player_jump=true;
			player_jump_speed=5;
		}