116 lines
2.0 KiB
C++
116 lines
2.0 KiB
C++
/*=========================================================================
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ngeneric.cpp
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Author: CRB
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Created:
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Project: Spongebob
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Purpose:
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Copyright (c) 2000 Climax Development Ltd
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===========================================================================*/
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#ifndef __ENEMY_NPC_H__
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#include "enemy\npc.h"
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#endif
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#ifndef __GAME_GAME_H__
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#include "game\game.h"
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#endif
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#ifndef __PLAYER_PLAYER_H__
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#include "player\player.h"
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#endif
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void CNpc::processGenericGotoTarget( int _frames, s32 xDist, s32 yDist, s32 speed )
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{
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s16 decDir, incDir, moveDist;
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s32 moveX, moveY;
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s16 headingToTarget = ratan2( yDist, xDist );
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s16 maxTurnRate = m_data[m_type].turnSpeed;
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decDir = m_heading - headingToTarget;
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if ( decDir < 0 )
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{
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decDir += ONE;
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}
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incDir = headingToTarget - m_heading;
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if ( incDir < 0 )
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{
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incDir += ONE;
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}
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if ( decDir < incDir )
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{
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moveDist = -decDir;
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}
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else
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{
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moveDist = incDir;
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}
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if ( moveDist < -maxTurnRate )
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{
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moveDist = -maxTurnRate;
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}
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else if ( moveDist > maxTurnRate )
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{
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moveDist = maxTurnRate;
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}
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m_heading += moveDist;
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m_heading = m_heading % ONE;
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s32 preShiftX = _frames * speed * rcos( m_heading );
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s32 preShiftY = _frames * speed * rsin( m_heading );
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moveX = preShiftX >> 12;
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if ( !moveX && preShiftX )
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{
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moveX = preShiftX / abs( preShiftX );
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}
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moveY = preShiftY >> 12;
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if ( !moveY && preShiftY )
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{
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moveY = preShiftY / abs( preShiftY );
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}
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Pos.vx += moveX;
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Pos.vy += moveY;
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}
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void CNpc::processCloseGenericUserSeek( int _frames )
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{
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s32 moveX = 0, moveY = 0;
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s16 moveDist = 0;
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s32 moveVel = 0;
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CPlayer *player = GameScene.getPlayer();
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DVECTOR playerPos = player->getPos();
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s32 xDist, yDist;
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s32 xDistSqr, yDistSqr;
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xDist = playerPos.vx - this->Pos.vx;
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xDistSqr = xDist * xDist;
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yDist = playerPos.vy - this->Pos.vy;
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yDistSqr = yDist * yDist;
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//if ( xDistSqr + yDistSqr > 22500 )
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//{
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//this->m_controlFunc = NPC_CONTROL_MOVEMENT;
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//}
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//else
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{
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processGenericGotoTarget( _frames, xDist, yDist, m_data[m_type].speed );
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}
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}
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