cLayer_Line_Point :: cLayer_Line_Point( cSprite_Manager *sprite_manager, cOverworld *overworld, SpriteType new_type )
: cSprite( sprite_manager )
{
m_sprite_array = ARRAY_PASSIVE;
m_type = new_type;
m_massive_type = MASS_PASSIVE;
m_pos_z = 0.087f;
m_overworld = overworld;
m_linked_point = NULL;
if( m_type == TYPE_OW_LINE_START )
{
m_pos_z += 0.001f;
m_color = orange;
m_name = _("Line Start Point");
}
else
{
m_color = red;
m_name = _("Line End Point");
}
m_rect.m_w = 4;
m_rect.m_h = 4;
m_col_rect.m_w = m_rect.m_w;
m_col_rect.m_h = m_rect.m_h;
m_start_rect.m_w = m_rect.m_w;
m_start_rect.m_h = m_rect.m_h;
Update_Position_Rect();
m_camera_range = 0;
}
void cMovingSprite :: Col_Move( float move_x, float move_y, bool real /* = 0 */, bool force /* = 0 */, bool check_on_ground /* = 1 */ )
{
// no need to move
if( Is_Float_Equal( move_x, 0.0f ) && Is_Float_Equal( move_y, 0.0f ) )
{
return;
}
// invalid collision rect
if( Is_Float_Equal( m_col_rect.m_w, 0.0f ) || Is_Float_Equal( m_col_rect.m_h, 0.0f ) )
{
return;
}
// use speedfactor
if( !real )
{
move_x *= pFramerate->m_speed_factor;
move_y *= pFramerate->m_speed_factor;
}
// check for collisions
if( !force )
{
// get all possible colliding items
GL_rect complete_rect = m_col_rect;
if( move_x > 0.0f )
{
complete_rect.m_w += move_x;
}
else
{
complete_rect.m_x += move_x;
complete_rect.m_w -= move_x;
}
if( move_y > 0.0f )
{
complete_rect.m_h += move_y;
}
else
{
complete_rect.m_y += move_y;
complete_rect.m_h -= move_y;
}
cSprite_List sprite_list;
pActive_Sprite_Manager->Get_Colliding_Objects( sprite_list, complete_rect, 1, this );
// step size
float step_size_x = move_x;
float step_size_y = move_y;
// check if object collision rect is smaller as the position check size
if( step_size_x > m_col_rect.m_w )
{
step_size_x = m_col_rect.m_w;
}
else if( step_size_x < -m_col_rect.m_w )
{
step_size_x = -m_col_rect.m_w;
}
if( step_size_y > m_col_rect.m_h )
{
step_size_y = m_col_rect.m_h;
}
else if( step_size_y < -m_col_rect.m_h )
{
step_size_y = -m_col_rect.m_h;
}
float final_pos_x = m_pos_x + move_x;
float final_pos_y = m_pos_y + move_y;
// move in big steps
cObjectCollisionType *col_list = Col_Move_in_Steps( move_x, move_y, step_size_x, step_size_y, final_pos_x, final_pos_y, sprite_list, 1 );
// if a collision is found enter pixel checking
if( col_list && col_list->size() )
{
// change to pixel checking
if( step_size_x < -1.0f )
{
step_size_x = -1.0f;
}
else if( step_size_x > 1.0f )
{
step_size_x = 1.0f;
}
if( step_size_y < -1.0f )
{
step_size_y = -1.0f;
}
else if( step_size_y > 1.0f )
{
step_size_y = 1.0f;
}
delete col_list;
col_list = Col_Move_in_Steps( move_x, move_y, step_size_x, step_size_y, final_pos_x, final_pos_y, sprite_list );
Add_Collisions( col_list, 1 );
}
if( col_list )
{
delete col_list;
}
}
// don't check for collisions
else
{
m_pos_x += move_x;
m_pos_y += move_y;
Update_Position_Rect();
}
// if check on ground
if( check_on_ground )
{
Check_on_Ground();
}
// check/handle if moved out of level rect
Check_Out_Of_Level_Hor( move_x, 1 );
Check_Out_Of_Level_Ver( move_y, 1 );
}
cObjectCollisionType *cMovingSprite :: Col_Move_in_Steps( float move_x, float move_y, float step_size_x, float step_size_y, float final_pos_x, float final_pos_y, cSprite_List sprite_list, bool stop_on_internal /* = 0 */ )
{
if( sprite_list.empty() )
{
cSprite::Move( final_pos_x - m_pos_x, final_pos_y - m_pos_y, 1 );
return NULL;
}
// collision list
cObjectCollisionType *col_list = new cObjectCollisionType();
bool move_x_valid = 1;
bool move_y_valid = 1;
/* Checks in both directions simultaneously
* if a collision occurs it saves the direction
*/
while( move_x_valid || move_y_valid )
{
if( move_x_valid )
{
// nothing to do
if( Is_Float_Equal( step_size_x, 0.0f ) )
{
move_x_valid = 0;
continue;
}
// collision check
cObjectCollisionType *col_list_temp = Collision_Check_Relative( step_size_x, 0.0f, 0.0f, 0.0f, COLLIDE_COMPLETE, &sprite_list );
bool collision_found = 0;
// stop on everything
if( stop_on_internal )
{
if( col_list_temp->size() )
{
collision_found = 1;
}
}
// stop only on blocking
else
{
if( col_list_temp->Is_Included( COL_VTYPE_BLOCKING ) )
{
collision_found = 1;
}
// remove internal collision from further checks
else if( col_list_temp->objects.size() )
{
for( cObjectCollision_List::iterator itr = col_list_temp->objects.begin(), itr_end = col_list_temp->objects.end(); itr != itr_end; ++itr )
{
cObjectCollision *col = (*itr);
if( col->valid_type != COL_VTYPE_INTERNAL )
{
continue;
}
// find in sprite list
cSprite_List::iterator sprite_itr = std::find( sprite_list.begin(), sprite_list.end(), col->obj );
// not found
if( sprite_itr == sprite_list.end() )
{
continue;
}
sprite_list.erase( sprite_itr );
}
// if no objects left
if( sprite_list.empty() )
{
// move to final position
m_pos_x = final_pos_x;
}
}
}
if( col_list_temp->size() )
{
col_list->objects.insert( col_list->objects.end(), col_list_temp->objects.begin(), col_list_temp->objects.end() );
col_list_temp->objects.clear();
}
delete col_list_temp;
if( !collision_found )
{
m_pos_x += step_size_x;
if( ( step_size_x > 0.0f && final_pos_x <= m_pos_x ) || ( step_size_x < 0.0f && final_pos_x >= m_pos_x ) )
{
m_pos_x = final_pos_x;
move_x_valid = 0;
step_size_x = 0.0f;
}
// update collision rects
Update_Position_Rect();
}
// collision found
else
{
step_size_x = 0.0f;
move_x_valid = 0;
}
}
if( move_y_valid )
{
// nothing to do
if( Is_Float_Equal( step_size_y, 0.0f ) )
{
move_y_valid = 0;
continue;
}
// collision check
cObjectCollisionType *col_list_temp = Collision_Check_Relative( 0.0f, step_size_y, 0.0f, 0.0f, COLLIDE_COMPLETE, &sprite_list );
bool collision_found = 0;
// stop on everything
if( stop_on_internal )
{
if( col_list_temp->size() )
{
collision_found = 1;
}
}
// stop only on blocking
else
{
if( col_list_temp->Is_Included( COL_VTYPE_BLOCKING ) )
{
collision_found = 1;
}
// remove internal collision from further checks
else if( col_list_temp->objects.size() )
{
for( cObjectCollision_List::iterator itr = col_list_temp->objects.begin(), itr_end = col_list_temp->objects.end(); itr != itr_end; ++itr )
{
cObjectCollision *col = (*itr);
if( col->valid_type != COL_VTYPE_INTERNAL )
{
continue;
}
// find in sprite list
cSprite_List::iterator sprite_itr = std::find( sprite_list.begin(), sprite_list.end(), col->obj );
// not found
if( sprite_itr == sprite_list.end() )
{
continue;
}
sprite_list.erase( sprite_itr );
// if no objects left
if( sprite_list.empty() )
{
// move to final position
m_pos_y = final_pos_y;
}
}
}
}
if( col_list_temp->size() )
{
col_list->objects.insert( col_list->objects.end(), col_list_temp->objects.begin(), col_list_temp->objects.end() );
col_list_temp->objects.clear();
}
delete col_list_temp;
if( !collision_found )
{
m_pos_y += step_size_y;
if( ( step_size_y > 0.0f && final_pos_y <= m_pos_y ) || ( step_size_y < 0.0f && final_pos_y >= m_pos_y ) )
{
m_pos_y = final_pos_y;
move_y_valid = 0;
step_size_y = 0.0f;
}
// update collision rects
Update_Position_Rect();
}
// collision found
else
{
step_size_y = 0.0f;
move_y_valid = 0;
}
}
}
return col_list;
}
