Mirrors/SBSPSS
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Charles 2001-02-22 21:00:56 +00:00
parent 2c084ae0fb
commit f8df16c417
4 changed files with 141 additions and 123 deletions
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131
source/enemy/ngeneric.cpp
View File

@ -99,7 +99,134 @@ void CNpc::processGenericGetUserDist( int _frames, s32 *distX, s32 *distY )
*distY = playerPos.vy - this->Pos.vy;
}
void CNpc::processGenericFixedPathWalk( int _frames, s32 *moveX, s32 *moveY, s32 *heading )
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;
@ -112,7 +239,7 @@ void CNpc::processGenericFixedPathWalk( int _frames, s32 *moveX, s32 *moveY, s32
// ignore y component of waypoint, since we are stuck to the ground
if ( m_npcPath.thinkFlat( Pos, &distX, &distY, heading ) )
if ( m_npcPath.thinkFlat( Pos, &distX, &distY, &m_heading ) )
{
// path has finished, waypoint has changed, or there are no waypoints - do not move horizontally

81
source/enemy/npc.cpp
View File

@ -54,7 +54,7 @@ class CLayerCollision *CNpc::m_layerCollision;
void CNpc::init()
{
m_type = NPC_SHARK_MAN;
m_type = NPC_SMALL_JELLYFISH_1;
m_heading = m_fireHeading = 0;
m_movementTimer = 0;
@ -336,7 +336,7 @@ bool CNpc::processSensor()
{
case NPC_SENSOR_JELLYFISH_USER_CLOSE:
{
if ( playerXDistSqr + playerYDistSqr < 10000 )
if ( playerXDistSqr + playerYDistSqr < 5625 )
{
m_controlFunc = NPC_CONTROL_CLOSE;
m_evadeClockwise = getRnd() % 2;
@ -635,10 +635,8 @@ void CNpc::processMovement(int _frames)
}
s32 moveX = 0, moveY = 0;
s16 moveDist = 0;
s32 moveVel = 0;
s32 moveDist = 0;
switch( m_data[this->m_type].movementFunc )
{
@ -649,81 +647,14 @@ void CNpc::processMovement(int _frames)
case NPC_MOVEMENT_FIXED_PATH:
{
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;
}
processGenericFixedPathMove( _frames, &moveX, &moveY, &moveVel, &moveDist );
break;
}
case NPC_MOVEMENT_FIXED_PATH_WALK:
{
processGenericFixedPathWalk( _frames, &moveX, &moveY, &m_heading );
processGenericFixedPathWalk( _frames, &moveX, &moveY );
break;
}
@ -789,7 +720,7 @@ void CNpc::processMovement(int _frames)
break;
}
processMovementModifier(_frames, moveX, moveY, moveVel, moveDist);
processMovementModifier( _frames, moveX, moveY, moveVel, moveDist );
}
void CNpc::processMovementModifier(int _frames, s32 distX, s32 distY, s32 dist, s16 headingChange)

4
source/enemy/npc.h
View File

@ -271,7 +271,9 @@ protected:
void processGenericGotoTarget( int _frames, s32 xDist, s32 yDist, s32 speed );
void processGenericGetUserDist( int _frames, s32 *distX, s32 *distY );
void processGenericFixedPathWalk( int _frames, s32 *moveX, s32 *moveY, s32 *heading );
void processGenericFixedPathMove( int _frames, s32 *moveX, s32 *moveY, s32 *moveVel, s32 *moveDist );
void processGenericFixedPathWalk( int _frames, s32 *moveX, s32 *moveY );
bool processGroundCollisionReverse( s32 *moveX, s32 *moveY );
// small jellyfish functions

48
source/enemy/nsjfish.cpp
View File

@ -108,7 +108,7 @@ void CNpc::processCloseSmallJellyfishEvade( int _frames )
s32 moveVel = 0;
if ( playerXDistSqr + playerYDistSqr > 22500 )
if ( playerXDistSqr + playerYDistSqr > 10000 )
{
this->m_controlFunc = NPC_CONTROL_MOVEMENT;
}
@ -214,51 +214,9 @@ void CNpc::processCloseSmallJellyfishEvade( int _frames )
moveY = ( _frames * 3 * rsin( m_heading ) ) >> 12;
moveVel = ( _frames * 3 ) << 8;
// check for collision with ground
if ( m_layerCollision->Get( ( Pos.vx + moveX ) >> 4, ( Pos.vy + moveY ) >> 4 ) )
if ( processGroundCollisionReverse( &moveX, &moveY ) )
{
bool xBlocked = false;
bool yBlocked = false;
// 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
{
moveX = -moveX;
moveY = -moveY;
m_heading += 2048;
m_heading &= 4096;
}
m_evadeClockwise = !m_evadeClockwise;
}
processMovementModifier(_frames, moveX, moveY, moveVel, moveDist);