void cMovingSprite :: Check_on_Ground( void )
{
// can't be on ground
if( !m_can_be_on_ground )
{
return;
}
if( m_type != TYPE_PLAYER && m_sprite_array != ARRAY_ENEMY && m_sprite_array != ARRAY_ACTIVE )
{
return;
}
// if ground object
if( m_ground_object )
{
GL_rect rect2( m_col_rect.m_x, m_col_rect.m_y + m_col_rect.m_h, m_col_rect.m_w, 1.0f );
// if on ground object
if( m_ground_object->m_col_rect.Intersects( rect2 ) && m_ground_object->m_can_be_ground )
{
return;
}
}
// don't check if flying or linked
if( m_state == STA_FLY || m_state == STA_OBJ_LINKED )
{
return;
}
// new onground check
cObjectCollisionType *col_list = Collision_Check_Relative( 0.0f, m_col_rect.m_h, 0.0f, 1.0f, COLLIDE_ONLY_BLOCKING );
Reset_On_Ground();
// possible ground objects
for( cObjectCollision_List::iterator itr = col_list->objects.begin(), itr_end = col_list->objects.end(); itr != itr_end; ++itr )
{
cObjectCollision *col = (*itr);
// ground collision found
if( col->direction == DIR_BOTTOM )
{
if( Set_On_Ground( col->obj ) )
{
// send collision ( needed for falling platform )
Send_Collision( col );
break;
}
}
}
delete col_list;
}
void cBaseBox::Check_Collision(ObjectDirection cdirection)
{
float check_x = 0.0f;
float check_y = 0.0f;
if (cdirection == DIR_BOTTOM)
{
check_y -= 10.0f;
}
else if (cdirection == DIR_TOP)
{
check_y += 10.0f;
}
else if (cdirection == DIR_LEFT)
{
check_x += 5.0f;
}
else if (cdirection == DIR_RIGHT)
{
check_x -= 5.0f;
}
cObjectCollisionType* col_list = Collision_Check_Relative(check_x, check_y, m_col_rect.m_w - (check_x * 0.5f), m_col_rect.m_h - (check_y * 0.5f));
for (cObjectCollision_List::iterator itr = col_list->objects.begin(), itr_end = col_list->objects.end(); itr != itr_end; ++itr)
{
cObjectCollision* col_obj = (*itr);
col_obj->obj->Handle_Collision_Box(Get_Opposite_Direction(col_obj->direction), &m_col_rect);
if (col_obj->m_array == ARRAY_ENEMY)
{
Col_Enemy(col_obj->obj);
}
}
delete col_list;
}
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;
}
