orangeghost.cpp

VIGASOCO (VIdeo GAmes SOurce COde) Windows port (v0.01)

// OrangeGhost.cpp
//
/////////////////////////////////////////////////////////////////////////////

#include "OrangeGhost.h"
#include "Pacman.h"
#include "Path.h"
#include "Game.h"
#include "GameState.h"
#include "GhostMoveAtHomeActions.h"
#include "GhostMoveWhenKilledActions.h"

/////////////////////////////////////////////////////////////////////////////
// initialization and cleanup
/////////////////////////////////////////////////////////////////////////////

OrangeGhost::OrangeGhost() : Ghost(ORANGE)
{
	resetState();

	// fills the actions arrays

	moveAtHomeAction = new GhostAction*[4];
	moveAtHomeAction[0] = new GhostMoveUpAndDownAction();
	moveAtHomeAction[1] = new GhostNopAction();
	moveAtHomeAction[2] = new GhostExitHomeAction();
	moveAtHomeAction[3] = new GhostMoveFromRightToCenterAction();

	moveWhenKilledAction = new GhostAction*[4];
	moveWhenKilledAction[0] = new GhostNopAction();
	moveWhenKilledAction[1] = new GhostGoHomeAction();
	moveWhenKilledAction[2] = new GhostGoHomeAndContinueAction();
	moveWhenKilledAction[3] = new GhostMoveToRightHomeSideAction();
}

OrangeGhost::~OrangeGhost()
{
	// deallocates the actions arrays

	for (int i = 0; i < 4; i++){
		delete moveAtHomeAction[i];
		delete moveWhenKilledAction[i];
	}

	delete[] moveAtHomeAction;
	delete[] moveWhenKilledAction;
}

void OrangeGhost::initState(bool special)
{
	Ghost::initState(special);

	if (!special){
		posX = 0x70;
		posY = 0x7c;
		tilePosX = actualTilePosX = 0x2c;
		tilePosY = actualTilePosY = 0x2f;
		movOffsX = prevMovOffsX = 0;
		movOffsY = prevMovOffsY = -1;
		orientation = prevOrientation = UP;
	}
}

/////////////////////////////////////////////////////////////////////////////
// orange ghost AI
/////////////////////////////////////////////////////////////////////////////

void OrangeGhost::moveInNormalState()
{
	// calculates current distance to pacman
	int distance2 = Path::distance2(tilePosX, tilePosY,
						theGame->pacman->tilePosX, theGame->pacman->tilePosY);

	// in odd orientation changes indexes, if distance >= 8 tiles,
	// or if we are in demo mode, try to go to pacman position
	if (((theGame->indexOrientationChanges & 0x01) == 0x01) || (theGame->states[PLAYING]->substate != 3)){
		if ((distance2 >= 8*8)){
			// tries to go for pacman
			destTilePosX = theGame->pacman->tilePosX;
			destTilePosY = theGame->pacman->tilePosY;
			Path::calcPath(tilePosX, tilePosY, orientation, 
						destTilePosX, destTilePosY,
						movOffsX, movOffsY, orientation);
		} else {
			// goes to the lower left corner
			destTilePosX = 0x3b;
			destTilePosY = 0x40;
			Path::calcPath(tilePosX, tilePosY, orientation, 0x3b, 0x40, movOffsX, movOffsY, orientation);
		}
	} else {
		// searchs the best direction to choose to go to the lower left corner
		destTilePosX = 0x3b;
		destTilePosY = 0x40;
		Path::calcPath(tilePosX, tilePosY, orientation, 0x3b, 0x40, movOffsX, movOffsY, orientation);
	}
}