static int load_local_pylon_entities (char *name)
{
entity
*last_entity,
*last_last_entity,
*new_entity;
entity_sub_types
sub_type;
int
type,
node_count,
*node_link_count,
path_count,
node_loop,
path_loop,
start,
end,
link_count,
link_loop;
vec3d
*node_positions,
pos;
FILE
*pylon_node_file_ptr,
*pylon_link_file_ptr;
char
filename [1024];
session_list_data_type
*current_session;
//
// Create "Node" Pylons
//
ASSERT (get_valid_current_game_session ());
ASSERT (name);
current_session = get_current_game_session ();
sprintf (filename, "%s//route//%s.nde", current_session->data_path, name);
if (file_exist (filename))
{
pylon_node_file_ptr = safe_fopen (filename, "rb");
fread (&node_count, sizeof (int), 1, pylon_node_file_ptr);
node_positions = malloc_heap_mem (sizeof (vec3d) * node_count);
node_link_count = malloc_heap_mem (sizeof (int) * node_count);
for (node_loop = 0 ; node_loop < node_count ; node_loop ++)
{
fread (&pos, sizeof (vec3d), 1, pylon_node_file_ptr);
node_positions [node_loop].x = pos.x;
node_positions [node_loop].y = pos.y;
node_positions [node_loop].z = pos.z;
node_link_count [node_loop] = 0;
}
fclose (pylon_node_file_ptr);
//
// Create "Link" Pylons
//
sprintf (filename, "%s//route//%s.wp", current_session->data_path, name);
pylon_link_file_ptr = safe_fopen (filename, "rb");
fread (&path_count, sizeof (int), 1, pylon_link_file_ptr);
new_entity = NULL;
for (path_loop = 0 ; path_loop < path_count ; path_loop ++)
{
fread (&start, sizeof (int), 1, pylon_link_file_ptr);
fread (&end, sizeof (int), 1, pylon_link_file_ptr);
fread (&type, sizeof (int), 1, pylon_link_file_ptr);
fread (&link_count, sizeof (int), 1, pylon_link_file_ptr);
node_link_count [start] += 1;
node_link_count [end] += 1;
if (link_count > 0)
{
last_entity = NULL;
last_last_entity = NULL;
for (link_loop = 0 ; link_loop < link_count ; link_loop ++)
{
fread (&pos, sizeof (vec3d), 1, pylon_link_file_ptr);
if (link_loop == 0)
{
sub_type = ENTITY_SUB_TYPE_FIXED_ELECTRICITY_PYLON_START_TERMINATOR;
}
else if (link_loop == link_count - 1)
{
sub_type = ENTITY_SUB_TYPE_FIXED_ELECTRICITY_PYLON_END_TERMINATOR;
}
else
{
sub_type = ENTITY_SUB_TYPE_FIXED_ELECTRICITY_PYLON_STANDARD;
}
new_entity = create_local_entity
(
ENTITY_TYPE_PYLON,
ENTITY_INDEX_DONT_CARE,
ENTITY_ATTR_INT_VALUE (INT_TYPE_ENTITY_SUB_TYPE, sub_type),
ENTITY_ATTR_VEC3D (VEC3D_TYPE_POSITION, pos.x, pos.y, pos.z),
ENTITY_ATTR_FLOAT_VALUE (FLOAT_TYPE_HEADING, 0),
ENTITY_ATTR_PTR_VALUE (PTR_TYPE_SUCC, last_entity),
ENTITY_ATTR_END
);
calculate_pylon_heading (last_last_entity, last_entity, new_entity, &node_positions [start], &node_positions [end]);
last_last_entity = last_entity;
last_entity = new_entity;
}
// last pylon in the link
calculate_pylon_heading (last_last_entity, last_entity, NULL, &node_positions [start], &node_positions [end]);
}
}
for (node_loop = 0 ; node_loop < node_count ; node_loop ++)
{
//
// create node entities here
//
}
fclose (pylon_link_file_ptr);
free_mem (node_positions);
free_mem (node_link_count);
return TRUE;
}
return FALSE;
}
entity *create_local_sound_effect_entity
(
int index,
entity *parent,
entity_sides side,
entity_sub_types sub_type,
sound_channel_types channel,
sound_locality_types locality,
vec3d *position,
float amp,
int valid,
int looping,
int sample_count,
sound_sample_indices *sample_indices
)
{
entity
*en;
vec3d
pos;
int
panning,
create_stack_attributes;
ASSERT (parent);
create_stack_attributes = force_local_entity_create_stack_attributes;
if (get_comms_data_flow () == COMMS_DATA_FLOW_RX)
{
set_force_local_entity_create_stack_attributes (TRUE);
}
panning = TRUE;
if (position)
{
pos = *position;
}
else
{
position = get_local_entity_vec3d_ptr (parent, VEC3D_TYPE_POSITION);
if (position)
{
pos = *position;
}
else
{
pos.x = MID_MAP_X;
pos.y = MID_MAP_Y;
pos.z = MID_MAP_Z;
panning = FALSE;
}
}
//
// special cases for speech
//
switch (sub_type)
{
case ENTITY_SUB_TYPE_EFFECT_SOUND_RADIO_MESSAGE:
{
if (get_global_gunship_side () == side)
{
amp = adjust_radio_message_amplification (amp, &pos);
}
else
{
amp = 0.0;
}
panning = FALSE;
break;
}
case ENTITY_SUB_TYPE_EFFECT_SOUND_CPG_MESSAGE:
case ENTITY_SUB_TYPE_EFFECT_SOUND_WARNING_MESSAGE:
{
if (parent == get_gunship_entity ())
{
amp = 1.0;
}
else
{
amp = 0.0;
}
panning = FALSE;
break;
}
}
//
// create sound
//
en = create_local_entity
(
ENTITY_TYPE_SOUND_EFFECT,
index,
ENTITY_ATTR_INT_VALUE (INT_TYPE_ENTITY_SUB_TYPE, sub_type),
ENTITY_ATTR_PARENT (LIST_TYPE_SPECIAL_EFFECT, parent),
ENTITY_ATTR_VEC3D (VEC3D_TYPE_POSITION, pos.x, pos.y, pos.z),
ENTITY_ATTR_INT_VALUE (INT_TYPE_SOUND_CHANNEL, channel),
ENTITY_ATTR_INT_VALUE (INT_TYPE_SOUND_EFFECT_LOOPING, looping),
ENTITY_ATTR_INT_VALUE (INT_TYPE_SOUND_EFFECT_PANNING, panning),
ENTITY_ATTR_INT_VALUE (INT_TYPE_SOUND_LOCALITY, locality),
ENTITY_ATTR_INT_VALUE (INT_TYPE_VALID_SOUND_EFFECT, valid),
ENTITY_ATTR_FLOAT_VALUE (FLOAT_TYPE_AMPLIFICATION, amp),
ENTITY_ATTR_END
);
set_local_sound_effect_sample_indices (en, sample_count, sample_indices);
#if DEBUG_MODULE
debug_log ("SOUNDEFF : created effect %s (%d), parent %s (%d), next %d, looping %d, valid %d",
application_sound_effects [sample_indices [0]].name,
get_local_entity_index (en),
get_local_entity_type_name (parent),
get_local_entity_index (parent),
looping,
valid);
#endif
set_force_local_entity_create_stack_attributes (create_stack_attributes);
return en;
}
int create_downwash_effect_component(downwash_component *this_downwash_component, downwash_types downwash_type, vec3d *position, int *entity_index_list, float main_rotor_radius, float main_rotor_rpm, float min_altitude)
{
int
loop,
count,
terrain_type,
trail_type;
short int
quadrant_x,
quadrant_z;
unsigned char
alpha_percentage;
float
lifetime,
lifetime_min,
lifetime_max,
scale_min,
scale_max,
scale,
angle,
radius,
relative_radius,
height,
altitude,
half_altitude,
main_rotor_radius_minus_altitude;
vec3d
pos,
offset,
iv;
terrain_3d_point_data
terrain_info;
entity
*new_entity;
memset (&terrain_info, 0, sizeof (terrain_3d_point_data));
count = this_downwash_component->trail_count;
if ( count < 1 )
{
return 0;
}
// Xhit: This is the altitude of the helicopter relative to the ground level. (030328)
altitude = position->y - min_altitude;
half_altitude = (altitude / 2.0);
main_rotor_radius_minus_altitude = main_rotor_radius - altitude;
scale_min = this_downwash_component->scale_min;
scale_max = this_downwash_component->scale_max;
lifetime_min = this_downwash_component->lifetime_min;
lifetime_max = this_downwash_component->lifetime_max;
// Xhit: initialising quadrant variables (030328)
quadrant_x = 1;
quadrant_z = 1;
//
// create smoke trails
//
for ( loop = 0 ; loop < count ; loop ++ )
{
lifetime = lifetime_min + fabs( ( lifetime_max - lifetime_min ) * sfrand1() );
angle = frand1() * PI_OVER_TWO;
relative_radius = main_rotor_radius * frand1();
scale = relative_radius + scale_min;
if(scale > scale_max)
scale = scale_max;
switch(downwash_type)
{
case DOWNWASH_TYPE_LAND:
case DOWNWASH_TYPE_LAND_DUAL_ROTORS:
{
//Xhit: If altitude bigger than main rotor radius then the smoke should be centered beneath the helicopter. (030328)
if(altitude >= main_rotor_radius)
{
radius = relative_radius;
height = (half_altitude * (radius / main_rotor_radius) + half_altitude) * frand1();
}else
{
radius = relative_radius + main_rotor_radius_minus_altitude;
height = (half_altitude * ((radius - main_rotor_radius_minus_altitude) / main_rotor_radius) + half_altitude + scale ) * frand1();
}
break;
}
case DOWNWASH_TYPE_WATER:
case DOWNWASH_TYPE_WATER_DUAL_ROTORS:
{
if(altitude >= main_rotor_radius)
{
radius = relative_radius;
}else
{
radius = relative_radius + main_rotor_radius_minus_altitude;
}
// Xhit: Changed to 2 instead of main_rotor_radius so smoke is created just over water level (030515)
height = 2 * frand1();
break;
}
default:
{
debug_fatal("DOWNWASH : trying to create an unrecogniseable downwash effect");
break;
}
}
//Xhit: If main rotor(s) only (not displaced main rotors) then. (030328)
if((this_downwash_component->create_in_all_quadrants) && (loop < 4))
{
//Xhit: This cryptical thing is to determine in which quadrant this sprite is going to be created. (030328)
// ^z
// |
// 1|0 x
// -+--->
// 3|2
//
// loop = 0 -> x= 1, z= 1; loop = 1 -> x= -1, z= 1;
// loop = 2 -> x= 1, z= -1; loop = 3 -> x= -1, z= -1;
quadrant_x = 1 | -(loop & 1);
quadrant_z = 1 | -(loop & 2);
offset.x = quadrant_x * radius * ( cos ( angle ) );
offset.y = height;
offset.z = quadrant_z * radius * ( sin ( angle ) );
}else
//Xhit: If scattered downwash effect and if the heli got more than one main rotor (on different axis) then
// add two more trails at the sides of the heli. (030328)
if((this_downwash_component->create_in_all_quadrants) && (loop >= 4) && (count == 6))
{
//Xhit: loop = 4 -> x= 1; loop = 5 -> x= -1; (030328)
quadrant_x = 1 | -(loop & 1);
relative_radius = main_rotor_radius * frand1();
offset.x = quadrant_x * radius;
offset.y = height;
offset.z = frand1() * (main_rotor_radius / 2);
}else
{
debug_fatal("DOWNWASH : trying to create an unrecogniseable downwash effect");
}
pos.x = position->x + offset.x ;
pos.z = position->z + offset.z;
//Xhit: This is necessary if it's going to work on tilting terrain. (030328)
get_3d_terrain_point_data (pos.x, pos.z, &terrain_info);
pos.y = get_3d_terrain_point_data_elevation (&terrain_info);
pos.y = pos.y + offset.y;
bound_position_to_map_volume( &pos );
//Xhit: Decide which trail type is going to be used, this makes mapping to type of downwash effect fast. (030328)
terrain_type = get_3d_terrain_point_data_type(&terrain_info);
trail_type = get_terrain_surface_type(terrain_type) + SMOKE_LIST_TYPE_DOWNWASH_START;
#if DEBUG_MODULE
debug_log("DOWNWASH.C: terrain_type: %d, trail_type: %d", terrain_type, trail_type);
#endif
iv.x = pos.x - position->x;
iv.y = relative_radius;
iv.z = pos.z - position->z;
//Xhit: If heli on ground then let the dust-smoke fade in according to increasing main_rotor_rpm
// otherwise set it according to the altitude of the heli (higher = less dust smoke) (030328)
if(altitude < 1.0)
{
alpha_percentage = (unsigned char)(main_rotor_rpm);
}else
{
//Xhit: "+ 1.0" is to guarantee that alpha_percentage > 0. (030328)
alpha_percentage = (unsigned char)((1.0 - (altitude / (DOWNWASH_EFFECT_MAX_ALTITUDE + 1.0))) * 100);
}
new_entity = create_local_entity
(
ENTITY_TYPE_SMOKE_LIST,
entity_index_list[ loop ],
ENTITY_ATTR_INT_VALUE (INT_TYPE_ENTITY_SUB_TYPE, ENTITY_SUB_TYPE_EFFECT_SMOKE_LIST_DOWNWASH),
ENTITY_ATTR_INT_VALUE (INT_TYPE_SMOKE_TYPE, trail_type),
ENTITY_ATTR_INT_VALUE (INT_TYPE_COLOUR_ALPHA, alpha_percentage),
ENTITY_ATTR_FLOAT_VALUE (FLOAT_TYPE_GENERATOR_LIFETIME, this_downwash_component->generator_lifetime),
ENTITY_ATTR_FLOAT_VALUE (FLOAT_TYPE_FREQUENCY, this_downwash_component->frequency),
ENTITY_ATTR_FLOAT_VALUE (FLOAT_TYPE_SMOKE_LIFETIME, lifetime),
ENTITY_ATTR_FLOAT_VALUE (FLOAT_TYPE_SCALE, scale),
ENTITY_ATTR_VEC3D (VEC3D_TYPE_INITIAL_VELOCITY, iv.x, iv.y, iv.z),
ENTITY_ATTR_VEC3D (VEC3D_TYPE_POSITION, pos.x, pos.y, pos.z),
ENTITY_ATTR_END
);
entity_index_list[ loop ] = get_local_entity_index( new_entity );
}
return count;
}
