#include "Unit.h"
#include "Game.h"
#include "DarkGDK.h"





Unit::Unit( PLAYER_ID owner, float x, float y, float facing, QuadTree* tree, int spriteid, UNIT_TYPE type ) : GameObject( owner, x, y, facing, tree, spriteid)
{
	alive			= true;
	deathtime		= 0.0f;
	SetFacing( angle );

	switch( type )
	{
	case( UNIT_TYPE_MAGE ):
		{
			life = 10;
			lifereg = 0;
			mana = 3;
			manareg = 0.25;
			speed = 100;
			animationspersec = 7;
		} break;
	case( UNIT_TYPE_ENEMY ):
		{
			life = 1;
			lifereg = 0;
			mana = 0;
			manareg = 0;
			speed = 30;
			animationspersec = 7;
		} break;
	case( UNIT_TYPE_BOSS ):
		{
			life = 3;
			lifereg = 0.25;
			mana = 2;
			manareg = 0.1;
			speed = 50;
			animationspersec = 10;
		} break;
	}

	/*posx = posx - dbSpriteWidth(unitid) / 2.0f * dbCos(angle) + dbSpriteHeight(unitid) / 2.0f * dbSin(angle);
    posy = posy - dbSpriteHeight(unitid) / 2.0f * dbCos(angle) - dbSpriteWidth(unitid) / 2.0f * dbSin(angle);
    dbRotateSprite(unitid, angle);*/
}	// end Konstructor



Unit::~Unit()
{

}	// Destructor



void Unit::SetFacing( float value )
{
	angle = value;
	// check unit facing
	if( angle <= 45 || angle > 315 )
	{
		facing = UNIT_FACING_EAST;
		animationstart = 9;
		animationend = 12;
	}
	else if( angle <= 135 )
	{
		facing = UNIT_FACING_SOUTH;
		animationstart = 1;
		animationend = 4;
	}
	else if( angle <= 225 )
	{
		facing = UNIT_FACING_WEST;
		animationstart = 5;
		animationend = 8;
	}
	else if( angle <= 315 )
	{
		facing = UNIT_FACING_NORTH;
		animationstart = 13;
		animationend = 16;
	}
}	// end SetFacing



void Unit::Update()
{
	const float deltatime = GAME->GetDeltaTime();

	if( !alive )
	{
		// fade unit away
		float alpha = 255*deathtime;
		dbSetSpriteDiffuse( spriteid, alpha, alpha, alpha );
		dbSetSpriteAlpha( spriteid, alpha );
		deathtime -= deltatime;
		if( deathtime <= 0 )
			removeable = true;
	}
	else
	{

		if( owner == PLAYER_ID_ENEMY )
		{
			// enemy units walk automatically towards the mage
			Rect r = GAME->mage->GetBoundary();
			SetFacing( dbWrapValue( dbAtanFull( r.GetCenterY() - rect.GetCenterY(), r.GetCenterX() - rect.GetCenterX() ) ) );
		}
		float newx = rect.topleft_x + (speed*deltatime) * dbCos( angle );
		float newy = rect.topleft_y + (speed*deltatime) * dbSin( angle );
		SetPosition( newx, newy );
	}
}	// end Update