313 lines
5.9 KiB
C++
313 lines
5.9 KiB
C++
/*=========================================================================
|
|
|
|
ngeneric.cpp
|
|
|
|
Author: CRB
|
|
Created:
|
|
Project: Spongebob
|
|
Purpose:
|
|
|
|
Copyright (c) 2000 Climax Development Ltd
|
|
|
|
===========================================================================*/
|
|
|
|
#ifndef __ENEMY_NPC_H__
|
|
#include "enemy\npc.h"
|
|
#endif
|
|
|
|
#ifndef __GAME_GAME_H__
|
|
#include "game\game.h"
|
|
#endif
|
|
|
|
#ifndef __PLAYER_PLAYER_H__
|
|
#include "player\player.h"
|
|
#endif
|
|
|
|
|
|
void CNpc::processGenericGotoTarget( int _frames, s32 xDist, s32 yDist, s32 speed )
|
|
{
|
|
s16 decDir, incDir, moveDist;
|
|
s32 moveX, moveY;
|
|
s16 headingToTarget = ratan2( yDist, xDist );
|
|
s16 maxTurnRate = m_data[m_type].turnSpeed;
|
|
|
|
decDir = m_heading - headingToTarget;
|
|
if ( decDir < 0 )
|
|
{
|
|
decDir += ONE;
|
|
}
|
|
|
|
incDir = headingToTarget - m_heading;
|
|
if ( incDir < 0 )
|
|
{
|
|
incDir += ONE;
|
|
}
|
|
|
|
if ( decDir < incDir )
|
|
{
|
|
moveDist = -decDir;
|
|
}
|
|
else
|
|
{
|
|
moveDist = incDir;
|
|
}
|
|
|
|
if ( moveDist < -maxTurnRate )
|
|
{
|
|
moveDist = -maxTurnRate;
|
|
}
|
|
else if ( moveDist > maxTurnRate )
|
|
{
|
|
moveDist = maxTurnRate;
|
|
}
|
|
|
|
m_heading += moveDist;
|
|
m_heading = m_heading % ONE;
|
|
|
|
s32 preShiftX = _frames * speed * rcos( m_heading );
|
|
s32 preShiftY = _frames * speed * rsin( m_heading );
|
|
|
|
moveX = preShiftX >> 12;
|
|
if ( !moveX && preShiftX )
|
|
{
|
|
moveX = preShiftX / abs( preShiftX );
|
|
}
|
|
|
|
moveY = preShiftY >> 12;
|
|
if ( !moveY && preShiftY )
|
|
{
|
|
moveY = preShiftY / abs( preShiftY );
|
|
}
|
|
|
|
Pos.vx += moveX;
|
|
Pos.vy += moveY;
|
|
}
|
|
|
|
void CNpc::processGenericGetUserDist( int _frames, s32 *distX, s32 *distY )
|
|
{
|
|
s32 moveX = 0, moveY = 0;
|
|
|
|
s16 moveDist = 0;
|
|
|
|
s32 moveVel = 0;
|
|
|
|
CPlayer *player = GameScene.getPlayer();
|
|
|
|
DVECTOR playerPos = player->getPos();
|
|
|
|
*distX = playerPos.vx - this->Pos.vx;
|
|
*distY = playerPos.vy - this->Pos.vy;
|
|
}
|
|
|
|
bool CNpc::processGroundCollisionReverse( s32 *moveX, s32 *moveY )
|
|
{
|
|
bool xBlocked = false;
|
|
bool yBlocked = false;
|
|
|
|
// check for collision with ground
|
|
|
|
if ( m_layerCollision->Get( ( Pos.vx + *moveX ) >> 4, ( Pos.vy + *moveY ) >> 4 ) )
|
|
{
|
|
// destination point is below ground, check in individual directions
|
|
|
|
if ( m_layerCollision->Get( ( Pos.vx + *moveX ) >> 4, Pos.vy >> 4 ) )
|
|
{
|
|
// X direction is blocked
|
|
|
|
xBlocked = true;
|
|
}
|
|
|
|
if ( m_layerCollision->Get( Pos.vx >> 4, ( Pos.vy + *moveY ) >> 4 ) )
|
|
{
|
|
yBlocked = true;
|
|
}
|
|
|
|
if ( xBlocked && !yBlocked )
|
|
{
|
|
// invert X
|
|
|
|
*moveX = -(*moveX);
|
|
|
|
m_heading = ratan2( *moveY, *moveX );
|
|
}
|
|
else if ( !xBlocked && yBlocked )
|
|
{
|
|
// invert Y
|
|
|
|
*moveY = -(*moveY);
|
|
|
|
m_heading = ratan2( *moveY, *moveX );
|
|
}
|
|
else
|
|
{
|
|
// invert both
|
|
|
|
*moveX = -(*moveX);
|
|
*moveY = -(*moveY);
|
|
|
|
m_heading += 2048;
|
|
m_heading &= 4096;
|
|
}
|
|
}
|
|
|
|
return( xBlocked | yBlocked );
|
|
}
|
|
|
|
void CNpc::processGenericFixedPathMove( int _frames, s32 *moveX, s32 *moveY, s32 *moveVel, s32 *moveDist )
|
|
{
|
|
bool pathComplete;
|
|
bool waypointChange;
|
|
|
|
s16 headingToTarget = m_npcPath.think( Pos, &pathComplete, &waypointChange );
|
|
|
|
if ( waypointChange )
|
|
{
|
|
m_movementTimer = 0;
|
|
}
|
|
|
|
if ( !pathComplete )
|
|
{
|
|
s16 decDir, incDir;
|
|
s16 maxTurnRate = m_data[m_type].turnSpeed;
|
|
|
|
decDir = m_heading - headingToTarget;
|
|
|
|
if ( decDir < 0 )
|
|
{
|
|
decDir += ONE;
|
|
}
|
|
|
|
incDir = headingToTarget - m_heading;
|
|
|
|
if ( incDir < 0 )
|
|
{
|
|
incDir += ONE;
|
|
}
|
|
|
|
if ( decDir < incDir )
|
|
{
|
|
*moveDist = -decDir;
|
|
}
|
|
else
|
|
{
|
|
*moveDist = incDir;
|
|
}
|
|
|
|
if ( *moveDist < -maxTurnRate )
|
|
{
|
|
*moveDist = -maxTurnRate;
|
|
}
|
|
else if ( *moveDist > maxTurnRate )
|
|
{
|
|
*moveDist = maxTurnRate;
|
|
}
|
|
|
|
m_heading += *moveDist;
|
|
m_heading = m_heading % ONE;
|
|
|
|
s32 preShiftX = _frames * m_data[m_type].speed * rcos( m_heading );
|
|
s32 preShiftY = _frames * m_data[m_type].speed * rsin( m_heading );
|
|
|
|
*moveX = preShiftX >> 12;
|
|
if ( !(*moveX) && preShiftX )
|
|
{
|
|
*moveX = preShiftX / abs( preShiftX );
|
|
}
|
|
|
|
*moveY = preShiftY >> 12;
|
|
if ( !(*moveY) && preShiftY )
|
|
{
|
|
*moveY = preShiftY / abs( preShiftY );
|
|
}
|
|
|
|
*moveVel = ( _frames * m_data[m_type].speed ) << 8;
|
|
|
|
processGroundCollisionReverse( moveX, moveY );
|
|
}
|
|
}
|
|
|
|
void CNpc::processGenericFixedPathWalk( int _frames, s32 *moveX, s32 *moveY )
|
|
{
|
|
s32 maxHeight = 10;
|
|
s32 distX, distY;
|
|
s32 fallSpeed = 2;
|
|
s8 yMovement = fallSpeed * _frames;
|
|
s32 groundHeight;
|
|
|
|
*moveX = 0;
|
|
*moveY = 0;
|
|
|
|
// ignore y component of waypoint, since we are stuck to the ground
|
|
|
|
if ( m_npcPath.thinkFlat( Pos, &distX, &distY, &m_heading ) )
|
|
{
|
|
// path has finished, waypoint has changed, or there are no waypoints - do not move horizontally
|
|
|
|
// 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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void CNpc::processGenericCircularPath( int _frames )
|
|
{
|
|
m_rotation += m_data[m_type].speed;
|
|
m_rotation %= 4096;
|
|
|
|
Pos.vx = m_base.vx + ( ( m_extension * rcos( m_rotation ) ) >> 12 );
|
|
Pos.vy = m_base.vy + ( ( m_extension * rsin( m_rotation ) ) >> 12 );
|
|
}
|
|
|
|
|
|
bool CNpc::isCollisionWithGround()
|
|
{
|
|
ASSERT(m_layerCollision);
|
|
return m_layerCollision->Get( Pos.vx >> 4, ( Pos.vy + 1 ) >> 4 ) ? 16:0;
|
|
}
|