SBSPSS/source/enemy/ndustdev.cpp
Charles 8364b41cd1
2001-04-26 16:18:31 +00:00

148 lines
3.0 KiB
C++

/*=========================================================================
ndustdev.cpp
Author: CRB
Created:
Project: Spongebob
Purpose:
Copyright (c) 2000 Climax Development Ltd
===========================================================================*/
#ifndef __ENEMY_NPC_H__
#include "enemy\npc.h"
#endif
#ifndef __ENEMY_NDUSTDEV_H__
#include "enemy\ndustdev.h"
#endif
#ifndef __GAME_GAME_H__
#include "game\game.h"
#endif
void CNpcDustDevilEnemy::postInit()
{
m_npcPath.setPathType( CNpcPath::SINGLE_USE_PATH );
}
void CNpcDustDevilEnemy::processMovement( int _frames )
{
s32 maxHeight = 20;
s32 distX, distY;
s32 fallSpeed = 3;
s8 yMovement = fallSpeed * _frames;
s32 groundHeight;
s32 moveX = 0;
s32 moveY = 0;
s32 moveVel = 0;
s32 moveDist = 0;
bool pathComplete;
// deal with anims
if ( !m_animPlaying )
{
m_animPlaying = true;
m_frame = 0;
m_animNo = m_data[m_type].moveAnim;
}
// ignore y component of waypoint, since we are stuck to the ground
if ( m_npcPath.thinkFlat( Pos, &pathComplete, &distX, &distY, &m_heading ) )
{
// path has finished, waypoint has changed, or there are no waypoints - do not move horizontally
if ( pathComplete )
{
m_npcPath.resetPath();
Pos = m_base;
}
else
{
// check for vertical movement
groundHeight = m_layerCollision->getHeightFromGround( Pos.vx, Pos.vy, yMovement + 16 );
if ( groundHeight <= yMovement )
{
// groundHeight <= yMovement indicates either just above ground or on or below ground
moveY = groundHeight;
}
else
{
// fall
moveY = yMovement;
}
}
}
else
{
// check for collision
distX = distX / abs( distX );
if ( m_layerCollision->getHeightFromGround( Pos.vx + ( distX * m_data[m_type].speed * _frames ), Pos.vy ) < -maxHeight )
{
// there is an obstacle in the way, increment the path point (hopefully this will resolve the problem)
m_npcPath.incPath();
}
else
{
// check for vertical movement
groundHeight = m_layerCollision->getHeightFromGround( Pos.vx, Pos.vy, yMovement + 16 );
if ( groundHeight <= yMovement )
{
// groundHeight <= yMovement indicates either just above ground or on or below ground
moveX = distX * m_data[m_type].speed * _frames;
moveY = groundHeight;
}
else
{
// fall
moveY = yMovement;
}
}
}
processMovementModifier( _frames, moveX, moveY, moveVel, moveDist );
}
void CNpcDustDevilEnemy::processMovementModifier( int _frames, s32 distX, s32 distY, s32 dist, s16 headingChange )
{
Pos.vx += distX;
Pos.vy += distY;
// sort out draw rotation
DVECTOR testPos1, testPos2;
testPos1 = testPos2 = Pos;
testPos1.vx -= 10;
testPos2.vx += 10;
testPos1.vy += m_layerCollision->getHeightFromGround( testPos1.vx, testPos1.vy, 16 );
testPos2.vy += m_layerCollision->getHeightFromGround( testPos1.vx, testPos1.vy, 16 );
s32 xDist = testPos2.vx - testPos1.vx;
s32 yDist = testPos2.vy - testPos1.vy;
s16 heading = ratan2( yDist, xDist );
m_drawRotation = heading;
}