static COUNT
initialize_autoaim_laser (ELEMENT *ShipPtr, HELEMENT LaserArray[])
{
COUNT orig_facing;
SIZE delta_facing;
STARSHIP *StarShipPtr;
LASER_BLOCK LaserBlock;
GetElementStarShip (ShipPtr, &StarShipPtr);
LaserBlock.face = orig_facing = StarShipPtr->ShipFacing;
if ((delta_facing = TrackShip (ShipPtr, &LaserBlock.face)) > 0)
LaserBlock.face = NORMALIZE_FACING (orig_facing + delta_facing);
ShipPtr->hTarget = 0;
LaserBlock.cx = ShipPtr->next.location.x;
LaserBlock.cy = ShipPtr->next.location.y;
LaserBlock.ex = COSINE (FACING_TO_ANGLE (LaserBlock.face), LASER_RANGE);
LaserBlock.ey = SINE (FACING_TO_ANGLE (LaserBlock.face), LASER_RANGE);
LaserBlock.sender = ShipPtr->playerNr;
LaserBlock.flags = IGNORE_SIMILAR;
LaserBlock.pixoffs = ARILOU_OFFSET;
LaserBlock.color = BUILD_COLOR (MAKE_RGB15 (0x1F, 0x1F, 0x0A), 0x0E);
LaserArray[0] = initialize_laser (&LaserBlock);
return (1);
}
static void
druuge_postprocess (ELEMENT *ElementPtr)
{
STARSHIP *StarShipPtr;
GetElementStarShip (ElementPtr, &StarShipPtr);
/* if just fired cannon */
if ((StarShipPtr->cur_status_flags & WEAPON)
&& StarShipPtr->weapon_counter ==
StarShipPtr->RaceDescPtr->characteristics.weapon_wait)
{
COUNT angle;
SIZE cur_delta_x, cur_delta_y;
StarShipPtr->cur_status_flags &= ~SHIP_AT_MAX_SPEED;
angle = FACING_TO_ANGLE (StarShipPtr->ShipFacing) + HALF_CIRCLE;
DeltaVelocityComponents (&ElementPtr->velocity,
COSINE (angle, RECOIL_VELOCITY),
SINE (angle, RECOIL_VELOCITY));
GetCurrentVelocityComponents (&ElementPtr->velocity,
&cur_delta_x, &cur_delta_y);
if ((long)cur_delta_x * (long)cur_delta_x
+ (long)cur_delta_y * (long)cur_delta_y
> (long)MAX_RECOIL_VELOCITY * (long)MAX_RECOIL_VELOCITY)
{
angle = ARCTAN (cur_delta_x, cur_delta_y);
SetVelocityComponents (&ElementPtr->velocity,
COSINE (angle, MAX_RECOIL_VELOCITY),
SINE (angle, MAX_RECOIL_VELOCITY));
}
}
}
static void
spawn_doggy (ELEMENT *ElementPtr)
{
HELEMENT hDoggyElement;
if ((hDoggyElement = AllocElement ()) != 0)
{
COUNT angle;
ELEMENT *DoggyElementPtr;
STARSHIP *StarShipPtr;
ElementPtr->state_flags |= DEFY_PHYSICS;
PutElement (hDoggyElement);
LockElement (hDoggyElement, &DoggyElementPtr);
DoggyElementPtr->hit_points = DOGGY_HITS;
DoggyElementPtr->mass_points = DOGGY_MASS;
DoggyElementPtr->thrust_wait = 0;
DoggyElementPtr->playerNr = ElementPtr->playerNr;
DoggyElementPtr->state_flags = APPEARING;
DoggyElementPtr->life_span = NORMAL_LIFE;
SetPrimType (&(GLOBAL (DisplayArray))[DoggyElementPtr->PrimIndex],
STAMP_PRIM);
{
DoggyElementPtr->preprocess_func = doggy_preprocess;
DoggyElementPtr->postprocess_func = NULL;
DoggyElementPtr->collision_func = doggy_collision;
DoggyElementPtr->death_func = doggy_death;
}
GetElementStarShip (ElementPtr, &StarShipPtr);
angle = FACING_TO_ANGLE (StarShipPtr->ShipFacing) + HALF_CIRCLE;
DoggyElementPtr->current.location.x = ElementPtr->next.location.x
+ COSINE (angle, DISPLAY_TO_WORLD (CHENJESU_OFFSET + DOGGY_OFFSET));
DoggyElementPtr->current.location.y = ElementPtr->next.location.y
+ SINE (angle, DISPLAY_TO_WORLD (CHENJESU_OFFSET + DOGGY_OFFSET));
DoggyElementPtr->current.image.farray = StarShipPtr->RaceDescPtr->ship_data.special;
DoggyElementPtr->current.image.frame = StarShipPtr->RaceDescPtr->ship_data.special[0];
SetVelocityVector (&DoggyElementPtr->velocity,
DOGGY_SPEED, NORMALIZE_FACING (ANGLE_TO_FACING (angle)));
SetElementStarShip (DoggyElementPtr, StarShipPtr);
ProcessSound (SetAbsSoundIndex (
/* RELEASE_DOGGY */
StarShipPtr->RaceDescPtr->ship_data.ship_sounds, 4), DoggyElementPtr);
UnlockElement (hDoggyElement);
}
}
static void
cannon_collision (ELEMENT *ElementPtr0, POINT *pPt0,
ELEMENT *ElementPtr1, POINT *pPt1)
{
weapon_collision (ElementPtr0, pPt0, ElementPtr1, pPt1);
if ((ElementPtr1->state_flags & PLAYER_SHIP)
&& ElementPtr1->crew_level
&& !GRAVITY_MASS (ElementPtr1->mass_points + 1))
{
COUNT angle;
SIZE cur_delta_x, cur_delta_y;
STARSHIP *StarShipPtr;
GetElementStarShip (ElementPtr1, &StarShipPtr);
StarShipPtr->cur_status_flags &=
~(SHIP_AT_MAX_SPEED | SHIP_BEYOND_MAX_SPEED);
angle = FACING_TO_ANGLE (
GetFrameIndex (ElementPtr0->next.image.frame)
);
DeltaVelocityComponents (&ElementPtr1->velocity,
COSINE (angle, RECOIL_VELOCITY),
SINE (angle, RECOIL_VELOCITY));
GetCurrentVelocityComponents (&ElementPtr1->velocity,
&cur_delta_x, &cur_delta_y);
if ((long)cur_delta_x * (long)cur_delta_x
+ (long)cur_delta_y * (long)cur_delta_y
> (long)MAX_RECOIL_VELOCITY * (long)MAX_RECOIL_VELOCITY)
{
angle = ARCTAN (cur_delta_x, cur_delta_y);
SetVelocityComponents (&ElementPtr1->velocity,
COSINE (angle, MAX_RECOIL_VELOCITY),
SINE (angle, MAX_RECOIL_VELOCITY));
}
}
}
static void
pump_up_postprocess (ELEMENT *ElementPtr)
{
if (ElementPtr->state_flags & APPEARING)
{
ZeroVelocityComponents (&ElementPtr->velocity);
}
else
{
HELEMENT hPumpUp;
ELEMENT *EPtr;
ELEMENT *ShipPtr;
STARSHIP *StarShipPtr;
GetElementStarShip (ElementPtr, &StarShipPtr);
LockElement (StarShipPtr->hShip, &ShipPtr);
initialize_pump_up (ShipPtr, &hPumpUp);
DeltaEnergy (ShipPtr, 0);
UnlockElement (StarShipPtr->hShip);
LockElement (hPumpUp, &EPtr);
EPtr->current.image.frame = ElementPtr->current.image.frame;
EPtr->turn_wait = ElementPtr->turn_wait;
EPtr->thrust_wait = ElementPtr->thrust_wait;
if (--EPtr->thrust_wait == 0)
{
if ((EPtr->turn_wait & ~REVERSE_DIR) < MAX_PUMP - 1)
{
++EPtr->turn_wait;
EPtr->current.image.frame = SetRelFrameIndex (
EPtr->current.image.frame, NUM_PUMP_ANIMS);
ProcessSound (SetAbsSoundIndex (
StarShipPtr->RaceDescPtr->ship_data.ship_sounds, 2),
EPtr);
}
EPtr->thrust_wait = LEVEL_COUNTER;
}
EPtr->mass_points = EPtr->hit_points =
(PUMPUP_DAMAGE << (ElementPtr->turn_wait & ~REVERSE_DIR));
SetElementStarShip (EPtr, StarShipPtr);
if (EPtr->thrust_wait & 1)
{
COUNT frame_index;
frame_index = GetFrameIndex (EPtr->current.image.frame);
if (((EPtr->turn_wait & REVERSE_DIR)
&& (frame_index % NUM_PUMP_ANIMS) != 0)
|| (!(EPtr->turn_wait & REVERSE_DIR)
&& ((frame_index + 1) % NUM_PUMP_ANIMS) == 0))
{
--frame_index;
EPtr->turn_wait |= REVERSE_DIR;
}
else
{
++frame_index;
EPtr->turn_wait &= ~REVERSE_DIR;
}
EPtr->current.image.frame = SetAbsFrameIndex (
EPtr->current.image.frame, frame_index);
}
if (StarShipPtr->cur_status_flags & StarShipPtr->old_status_flags
& WEAPON)
{
StarShipPtr->weapon_counter = WEAPON_WAIT;
}
else
{
SIZE dx, dy;
COUNT angle;
EPtr->life_span = PUMPUP_LIFE;
EPtr->preprocess_func = pump_up_preprocess;
EPtr->postprocess_func = 0;
angle = FACING_TO_ANGLE (StarShipPtr->ShipFacing);
SetVelocityComponents (&EPtr->velocity,
COSINE (angle, WORLD_TO_VELOCITY (PUMPUP_SPEED)),
SINE (angle, WORLD_TO_VELOCITY (PUMPUP_SPEED)));
GetCurrentVelocityComponents (&ShipPtr->velocity, &dx, &dy);
dx = dx * 1/2;
dy = dy * 1/2;
// Add some of the Trader's velocity to its projectiles.
DeltaVelocityComponents (&EPtr->velocity, dx, dy);
EPtr->current.location.x -= VELOCITY_TO_WORLD (dx);
EPtr->current.location.y -= VELOCITY_TO_WORLD (dy);
ProcessSound (SetAbsSoundIndex (
StarShipPtr->RaceDescPtr->ship_data.ship_sounds, 3), EPtr);
}
UnlockElement (hPumpUp);
PutElement (hPumpUp);
SetPrimType (&(GLOBAL (DisplayArray))[ElementPtr->PrimIndex],
NO_PRIM);
ElementPtr->state_flags |= NONSOLID;
}
}
static void
supox_intelligence (ELEMENT *ShipPtr, EVALUATE_DESC *ObjectsOfConcern,
COUNT ConcernCounter)
{
STARSHIP *StarShipPtr;
EVALUATE_DESC *lpEvalDesc;
GetElementStarShip (ShipPtr, &StarShipPtr);
lpEvalDesc = &ObjectsOfConcern[ENEMY_SHIP_INDEX];
if (StarShipPtr->special_counter || lpEvalDesc->ObjectPtr == 0)
StarShipPtr->ship_input_state &= ~SPECIAL;
else
{
BOOLEAN LinedUp;
COUNT direction_angle;
SIZE delta_x, delta_y;
delta_x = lpEvalDesc->ObjectPtr->next.location.x
- ShipPtr->next.location.x;
delta_y = lpEvalDesc->ObjectPtr->next.location.y
- ShipPtr->next.location.y;
direction_angle = ARCTAN (delta_x, delta_y);
LinedUp = (BOOLEAN)(NORMALIZE_ANGLE (NORMALIZE_ANGLE (direction_angle
- FACING_TO_ANGLE (StarShipPtr->ShipFacing))
+ QUADRANT) <= HALF_CIRCLE);
if (!LinedUp
|| lpEvalDesc->which_turn > 20
|| NORMALIZE_ANGLE (
lpEvalDesc->facing
- (FACING_TO_ANGLE (StarShipPtr->ShipFacing)
+ HALF_CIRCLE) + OCTANT
) > QUADRANT)
StarShipPtr->ship_input_state &= ~SPECIAL;
else if (LinedUp && lpEvalDesc->which_turn <= 12)
StarShipPtr->ship_input_state |= SPECIAL;
if (StarShipPtr->ship_input_state & SPECIAL)
lpEvalDesc->MoveState = PURSUE;
}
ship_intelligence (ShipPtr,
ObjectsOfConcern, ConcernCounter);
if (StarShipPtr->ship_input_state & SPECIAL)
StarShipPtr->ship_input_state |= THRUST | WEAPON;
lpEvalDesc = &ObjectsOfConcern[ENEMY_WEAPON_INDEX];
if (StarShipPtr->special_counter == 0
&& lpEvalDesc->ObjectPtr
&& lpEvalDesc->MoveState == AVOID
&& ShipPtr->turn_wait == 0)
{
StarShipPtr->ship_input_state &= ~THRUST;
StarShipPtr->ship_input_state |= SPECIAL;
if (!(StarShipPtr->cur_status_flags & (LEFT | RIGHT)))
StarShipPtr->ship_input_state |= 1 << ((BYTE)TFB_Random () & 1);
else
StarShipPtr->ship_input_state |=
StarShipPtr->cur_status_flags & (LEFT | RIGHT);
}
}
static void
initialize_diagonal_flame (ELEMENT *ElementPtr)
{
COUNT i;
STARSHIP *StarShipPtr;
MISSILE_BLOCK MissileBlock;
GetElementStarShip (ElementPtr, &StarShipPtr);
MissileBlock.farray = StarShipPtr->RaceDescPtr->ship_data.weapon;
MissileBlock.index = 0;
MissileBlock.sender = ElementPtr->playerNr;
MissileBlock.flags = IGNORE_SIMILAR;
MissileBlock.pixoffs = ILWRATH_OFFSET;
MissileBlock.speed = MISSILE_SPEED;
MissileBlock.hit_points = MISSILE_HITS;
MissileBlock.damage = MISSILE_DAMAGE;
MissileBlock.life = MISSILE_LIFE;
MissileBlock.preprocess_func = flame_preprocess;
MissileBlock.blast_offs = MISSILE_OFFSET;
for(i = 0; i < 2; ++i)
{
HELEMENT hFlame;
if (i == 0)
{
MissileBlock.cx = ElementPtr->next.location.x
+ COSINE(FACING_TO_ANGLE(StarShipPtr->ShipFacing + 4), -32);
MissileBlock.cy = ElementPtr->next.location.y
+ SINE(FACING_TO_ANGLE(StarShipPtr->ShipFacing + 4), -32);
MissileBlock.face = NORMALIZE_FACING (StarShipPtr->ShipFacing + 2);
}
else
{
MissileBlock.cx = ElementPtr->next.location.x
+ COSINE(FACING_TO_ANGLE(StarShipPtr->ShipFacing + 4), 32);
MissileBlock.cy = ElementPtr->next.location.y
+ SINE(FACING_TO_ANGLE(StarShipPtr->ShipFacing + 4), 32);
MissileBlock.face = NORMALIZE_FACING (StarShipPtr->ShipFacing - 2);
}
hFlame = initialize_missile (&MissileBlock);
if (hFlame)
{
SIZE dx, dy;
ELEMENT *FlamePtr;
LockElement (hFlame, &FlamePtr);
SetElementStarShip (FlamePtr, StarShipPtr);
FlamePtr->hTarget = 0;
GetCurrentVelocityComponents (&ElementPtr->velocity, &dx, &dy);
DeltaVelocityComponents (&FlamePtr->velocity, dx, dy);
FlamePtr->current.location.x -= VELOCITY_TO_WORLD (dx);
FlamePtr->current.location.y -= VELOCITY_TO_WORLD (dy);
FlamePtr->collision_func = flame_collision;
FlamePtr->turn_wait = 0;
UnlockElement (hFlame);
PutElement (hFlame);
}
}
}
static COUNT
initialize_weapon (ELEMENT *ShipPtr, HELEMENT WeaponArray[])
{
COUNT i;
STARSHIP *StarShipPtr;
MISSILE_BLOCK MissileBlock;
GetElementStarShip (ShipPtr, &StarShipPtr);
MissileBlock.farray = StarShipPtr->RaceDescPtr->ship_data.weapon;
// MissileBlock.face = StarShipPtr->ShipFacing;
MissileBlock.face = MissileBlock.index = StarShipPtr->ShipFacing;
MissileBlock.sender = ShipPtr->playerNr;
MissileBlock.flags = IGNORE_SIMILAR;
MissileBlock.speed = (MISSILE_SPEED << RESOLUTION_FACTOR);
MissileBlock.hit_points = MISSILE_HITS;
MissileBlock.damage = MISSILE_DAMAGE;
MissileBlock.life = MISSILE_LIFE;
MissileBlock.blast_offs = MISSILE_OFFSET;
MissileBlock.preprocess_func = 0;
for (i = 0; i < 2; ++i)
{
if (i == 0)
{
MissileBlock.pixoffs = THRADDASH_OFFSET_2;
MissileBlock.cx = ShipPtr->next.location.x;
MissileBlock.cy = ShipPtr->next.location.y;
}
else if (StarShipPtr->static_counter == 0)
{
MissileBlock.pixoffs = THRADDASH_OFFSET_1;
MissileBlock.cx = ShipPtr->next.location.x
+ COSINE(FACING_TO_ANGLE (MissileBlock.face + 4), -25);
MissileBlock.cy = ShipPtr->next.location.y
+ SINE(FACING_TO_ANGLE (MissileBlock.face + 4), -25);
}
else
{
MissileBlock.pixoffs = THRADDASH_OFFSET_1;
MissileBlock.cx = ShipPtr->next.location.x
+ COSINE(FACING_TO_ANGLE (MissileBlock.face + 4), 25);
MissileBlock.cy = ShipPtr->next.location.y
+ SINE(FACING_TO_ANGLE (MissileBlock.face + 4), 25);
}
if ((WeaponArray[i] = initialize_missile (&MissileBlock)))
{
SIZE dx, dy;
ELEMENT *WeaponPtr;
LockElement (WeaponArray[i], &WeaponPtr);
GetCurrentVelocityComponents (&ShipPtr->velocity, &dx, &dy);
DeltaVelocityComponents (&WeaponPtr->velocity, dx, dy);
WeaponPtr->current.location.x -= VELOCITY_TO_WORLD (dx);
WeaponPtr->current.location.y -= VELOCITY_TO_WORLD (dy);
// WeaponPtr->collision_func = repulsor_collision;
UnlockElement (WeaponArray[i]);
}
}
return (2);
}
static void
thraddash_intelligence (ELEMENT *ShipPtr, EVALUATE_DESC *ObjectsOfConcern, COUNT ConcernCounter)
{
STARSHIP *StarShipPtr;
EVALUATE_DESC *lpEvalDesc;
lpEvalDesc = &ObjectsOfConcern[ENEMY_SHIP_INDEX];
if (lpEvalDesc->ObjectPtr)
{
#define STATIONARY_SPEED WORLD_TO_VELOCITY (DISPLAY_TO_WORLD (4))
SIZE dx, dy;
GetCurrentVelocityComponents (
&lpEvalDesc->ObjectPtr->velocity, &dx, &dy
);
if (lpEvalDesc->which_turn > 8
|| (long)dx * dx + (long)dy * dy <=
(long)STATIONARY_SPEED * STATIONARY_SPEED)
lpEvalDesc->MoveState = PURSUE;
else
lpEvalDesc->MoveState = ENTICE;
}
ship_intelligence (ShipPtr, ObjectsOfConcern, ConcernCounter);
GetElementStarShip (ShipPtr, &StarShipPtr);
if (StarShipPtr->special_counter == 0)
{
StarShipPtr->ship_input_state &= ~SPECIAL;
if (ObjectsOfConcern[ENEMY_WEAPON_INDEX].ObjectPtr
&& ObjectsOfConcern[ENEMY_WEAPON_INDEX].MoveState == ENTICE)
{
if ((StarShipPtr->ship_input_state & THRUST)
|| (ShipPtr->turn_wait == 0
&& !(StarShipPtr->ship_input_state & (LEFT | RIGHT)))
|| NORMALIZE_FACING (ANGLE_TO_FACING (
GetVelocityTravelAngle (
&ObjectsOfConcern[ENEMY_WEAPON_INDEX].ObjectPtr->velocity
) + HALF_CIRCLE + OCTANT)
- StarShipPtr->ShipFacing) > ANGLE_TO_FACING (QUADRANT))
StarShipPtr->ship_input_state |= SPECIAL;
}
else if (lpEvalDesc->ObjectPtr)
{
if (lpEvalDesc->MoveState == PURSUE)
{
if (StarShipPtr->RaceDescPtr->ship_info.energy_level >= WEAPON_ENERGY_COST
+ SPECIAL_ENERGY_COST
&& ShipPtr->turn_wait == 0
&& !(StarShipPtr->ship_input_state & (LEFT | RIGHT))
&& (!(StarShipPtr->cur_status_flags & SPECIAL)
|| !(StarShipPtr->cur_status_flags
& (SHIP_AT_MAX_SPEED | SHIP_BEYOND_MAX_SPEED))))
StarShipPtr->ship_input_state |= SPECIAL;
}
else if (lpEvalDesc->MoveState == ENTICE)
{
COUNT direction_angle;
SIZE delta_x, delta_y;
delta_x = lpEvalDesc->ObjectPtr->next.location.x
- ShipPtr->next.location.x;
delta_y = lpEvalDesc->ObjectPtr->next.location.y
- ShipPtr->next.location.y;
direction_angle = ARCTAN (delta_x, delta_y);
if ((lpEvalDesc->which_turn > 24
&& !(StarShipPtr->ship_input_state & (LEFT | RIGHT)))
|| (lpEvalDesc->which_turn <= 16
&& NORMALIZE_ANGLE (direction_angle
- (FACING_TO_ANGLE (StarShipPtr->ShipFacing) + HALF_CIRCLE)
+ QUADRANT) <= HALF_CIRCLE
&& (lpEvalDesc->which_turn < 12
|| NORMALIZE_ANGLE (direction_angle
- (GetVelocityTravelAngle (
&lpEvalDesc->ObjectPtr->velocity
) + HALF_CIRCLE)
+ (OCTANT + 2)) <= ((OCTANT + 2) << 1))))
StarShipPtr->ship_input_state |= SPECIAL;
}
}
if ((StarShipPtr->ship_input_state & SPECIAL)
&& StarShipPtr->RaceDescPtr->ship_info.energy_level >=
SPECIAL_ENERGY_COST)
StarShipPtr->ship_input_state &= ~THRUST;
}
}
// Primary weapon. It must deal at least 1 damage, otherwise it won't interact with other
// elements, not even gas. However, we can prevent this damage with a separate collision function.
static COUNT
initialize_spray (ELEMENT *ShipPtr, HELEMENT SprayArray[])
{
STARSHIP *StarShipPtr;
MISSILE_BLOCK MissileBlock;
SIZE offs_x, offs_y;
COUNT i, angle;
static COUNT spray_side[NUM_SIDES]={0,0};
GetElementStarShip (ShipPtr, &StarShipPtr);
angle = FACING_TO_ANGLE (StarShipPtr->ShipFacing);
for (i = 0; i < NUM_SPRAYS; i++)
{
BYTE damage;
// Only the foremost one deals damage
if (i == NUM_SPRAYS-1)
damage = 1;
else
damage = 0;
// This mechanism can be used to alter the "pipe" from which the spray particles come.
spray_side[ShipPtr->playerNr] = (spray_side[ShipPtr->playerNr] + 1) % 2;
if(spray_side[ShipPtr->playerNr])
{
offs_x = -SINE (angle, SPRAY_HORZ_OFFSET + (i << RESOLUTION_FACTOR));
offs_y = COSINE (angle, SPRAY_HORZ_OFFSET + (i << RESOLUTION_FACTOR));
}
else
{
offs_x = -SINE (angle, SPRAY_HORZ_OFFSET + (i << RESOLUTION_FACTOR));
offs_y = COSINE (angle, SPRAY_HORZ_OFFSET + (i << RESOLUTION_FACTOR));
}
MissileBlock.cx = ShipPtr->next.location.x + offs_x;
MissileBlock.cy = ShipPtr->next.location.y + offs_y;
MissileBlock.farray = StarShipPtr->RaceDescPtr->ship_data.weapon;
MissileBlock.face = StarShipPtr->ShipFacing;
MissileBlock.index = 0;
MissileBlock.sender = ShipPtr->playerNr;
MissileBlock.flags = IGNORE_SIMILAR | GASSY_SUBSTANCE;
MissileBlock.pixoffs = 4 + ((i * SPRAY_DIST) << RESOLUTION_FACTOR);
MissileBlock.speed = MISSILE_SPEED << RESOLUTION_FACTOR; // JMS_GFX
MissileBlock.hit_points = MISSILE_HITS;
MissileBlock.damage = damage;
MissileBlock.life = MISSILE_LIFE;
MissileBlock.preprocess_func = spray_preprocess;
MissileBlock.blast_offs = MISSILE_OFFSET;
SprayArray[i] = initialize_missile (&MissileBlock);
if (SprayArray[i])
{
ELEMENT *SprayPtr;
LockElement (SprayArray[i], &SprayPtr);
SprayPtr->collision_func = spray_collision;
SprayPtr->thrust_wait = 1;
// This makes the spray shoot in a slight angle towards the centerline.
// If you want a "curved" shot, put this mechanism into spray_preprocess
// where it accelerates the whot towards the centerline on every frame.
offs_x = -SINE (angle, (100 << RESOLUTION_FACTOR));
offs_y = COSINE (angle, (100 << RESOLUTION_FACTOR));
DeltaVelocityComponents (&SprayPtr->velocity, offs_x, offs_y);
UnlockElement (SprayArray[i]);
}
}
return (NUM_SPRAYS);
}
// Secondary weapon: Gas cloud.
// The IGNORE_VELOCITY flag is very important: It doesn't only stop the gas from reacting to gravity,
// (see collide.h) but it also makes it possible for the gas to stick to enemy ship (see this file's other gas functions).
static void spawn_gas (ELEMENT *ShipPtr)
{
STARSHIP *StarShipPtr;
MISSILE_BLOCK MissileBlock;
HELEMENT Missile;
SIZE offs_x, offs_y;
COUNT angle;
static COUNT gas_side[NUM_SIDES] = {0, 0};
static COUNT gas_number[NUM_SIDES] = {0, 0};
GetElementStarShip (ShipPtr, &StarShipPtr);
gas_number[ShipPtr->playerNr] = (gas_number[ShipPtr->playerNr] + 1) % 32;
gas_side[ShipPtr->playerNr] = (gas_side[ShipPtr->playerNr] + 1) % 2;
angle = FACING_TO_ANGLE (StarShipPtr->ShipFacing);
// This mechanism can be used to alter the "pipe" from which the gas clouds come.
if(gas_side[ShipPtr->playerNr])
{
offs_x = -SINE (angle, GAS_HORZ_OFFSET);
offs_y = COSINE (angle, GAS_HORZ_OFFSET);
}
else
{
offs_x = -SINE (angle, GAS_HORZ_OFFSET);
offs_y = COSINE (angle, GAS_HORZ_OFFSET);
}
MissileBlock.cx = ShipPtr->next.location.x + offs_x;
MissileBlock.cy = ShipPtr->next.location.y + offs_y;
MissileBlock.farray = StarShipPtr->RaceDescPtr->ship_data.special;
MissileBlock.face = StarShipPtr->ShipFacing;// Baul's gas now flies forward. (this was: (StarShipPtr->ShipFacing - 8) % 16;)
MissileBlock.index = LAST_DISSOLVE_INDEX; // Start with the gas emerge animation which is the last .pngs in gasXX.ani
MissileBlock.sender = ShipPtr->playerNr;
MissileBlock.flags = GASSY_SUBSTANCE | IGNORE_VELOCITY; // Don't erase the IGNORE_VELOCITY. It's very important.
MissileBlock.pixoffs = GAS_OFFSET;
MissileBlock.speed = GAS_INIT_SPEED;
MissileBlock.hit_points = GAS_HITS;
MissileBlock.damage = GAS_DAMAGE;
MissileBlock.life = GAS_LIFE;
MissileBlock.preprocess_func = gas_preprocess;
MissileBlock.blast_offs = 0;
Missile = initialize_missile (&MissileBlock);
if (Missile)
{
ELEMENT *GasPtr;
SIZE dx, dy; // Baul's gas now flies forward.
LockElement (Missile, &GasPtr);
// Baul's gas now flies forward.
GetCurrentVelocityComponents (&ShipPtr->velocity, &dx, &dy);
DeltaVelocityComponents (&GasPtr->velocity, dx, dy);
GasPtr->current.location.x -= VELOCITY_TO_WORLD (dx);
GasPtr->current.location.y -= VELOCITY_TO_WORLD (dy);
GasPtr->collision_func = gas_collision;
GasPtr->death_func = gas_death;
GasPtr->thrust_wait = 1;
GasPtr->weapon_element_index = gas_number[ShipPtr->playerNr];
SetElementStarShip (GasPtr, StarShipPtr);
ProcessSound (SetAbsSoundIndex (StarShipPtr->RaceDescPtr->ship_data.ship_sounds, 1), GasPtr);
UnlockElement (Missile);
PutElement (Missile);
}
}
static COUNT
initialize_dual_weapons (ELEMENT *ShipPtr, HELEMENT WeaponArray[])
{
#define CENTER_OFFS DISPLAY_TO_WORLD (4)
COORD cx, cy;
COUNT facing, angle;
SIZE offs_x, offs_y;
STARSHIP *StarShipPtr;
GetElementStarShip (ShipPtr, &StarShipPtr);
facing = StarShipPtr->ShipFacing;
angle = FACING_TO_ANGLE (facing);
cx = ShipPtr->next.location.x + COSINE (angle, CENTER_OFFS);
cy = ShipPtr->next.location.y + SINE (angle, CENTER_OFFS);
if (ShipPtr->next.image.farray == StarShipPtr->RaceDescPtr->ship_data.ship)
{
#define WING_OFFS DISPLAY_TO_WORLD (10)
COORD ex, ey;
LASER_BLOCK LaserBlock;
ELEMENT *LaserPtr;
LaserBlock.sender = ShipPtr->state_flags & (GOOD_GUY | BAD_GUY);
LaserBlock.pixoffs = 0;
LaserBlock.color = BUILD_COLOR (MAKE_RGB15 (0x1F, 0x0A, 0x0A), 0x0C);
LaserBlock.face = facing;
ex = cx + COSINE (angle, LASER_RANGE);
ey = cy + SINE (angle, LASER_RANGE);
offs_x = -SINE (angle, WING_OFFS);
offs_y = COSINE (angle, WING_OFFS);
LaserBlock.cx = cx + offs_x;
LaserBlock.cy = cy + offs_y;
LaserBlock.ex = ex - LaserBlock.cx;
LaserBlock.ey = ey - LaserBlock.cy;
if ((WeaponArray[0] = initialize_laser (&LaserBlock)))
{
LockElement (WeaponArray[0], &LaserPtr);
LaserPtr->collision_func = twin_laser_collision;
UnlockElement (WeaponArray[0]);
}
LaserBlock.cx = cx - offs_x;
LaserBlock.cy = cy - offs_y;
LaserBlock.ex = ex - LaserBlock.cx;
LaserBlock.ey = ey - LaserBlock.cy;
if ((WeaponArray[1] = initialize_laser (&LaserBlock)))
{
LockElement (WeaponArray[1], &LaserPtr);
LaserPtr->collision_func = twin_laser_collision;
UnlockElement (WeaponArray[1]);
}
}
else
{
#define MISSILE_HITS 1
#define MISSILE_DAMAGE 1
#define MISSILE_OFFSET 0
#define MISSILE_LIFE 40
#define LAUNCH_OFFS DISPLAY_TO_WORLD (4)
MISSILE_BLOCK TorpBlock;
ELEMENT *TorpPtr;
TorpBlock.farray = StarShipPtr->RaceDescPtr->ship_data.weapon;
TorpBlock.sender = (ShipPtr->state_flags & (GOOD_GUY | BAD_GUY))
| IGNORE_SIMILAR;
TorpBlock.pixoffs = 0;
TorpBlock.speed = MISSILE_SPEED;
TorpBlock.hit_points = MISSILE_HITS;
TorpBlock.damage = MISSILE_DAMAGE;
TorpBlock.life = MISSILE_LIFE;
TorpBlock.preprocess_func = missile_preprocess;
TorpBlock.blast_offs = MISSILE_OFFSET;
TorpBlock.face = TorpBlock.index = NORMALIZE_FACING (facing - 1);
offs_x = -SINE (FACING_TO_ANGLE (TorpBlock.face), LAUNCH_OFFS);
offs_y = COSINE (FACING_TO_ANGLE (TorpBlock.face), LAUNCH_OFFS);
TorpBlock.cx = cx + offs_x;
TorpBlock.cy = cy + offs_y;
if ((WeaponArray[0] = initialize_missile (&TorpBlock)))
{
LockElement (WeaponArray[0], &TorpPtr);
TorpPtr->turn_wait = TRACK_WAIT;
UnlockElement (WeaponArray[0]);
}
TorpBlock.face = TorpBlock.index = NORMALIZE_FACING (facing + 1);
TorpBlock.cx = cx - offs_x;
TorpBlock.cy = cy - offs_y;
if ((WeaponArray[1] = initialize_missile (&TorpBlock)))
{
LockElement (WeaponArray[1], &TorpPtr);
TorpPtr->turn_wait = TRACK_WAIT;
UnlockElement (WeaponArray[1]);
}
}
return (2);
}
// Preprocess function for spawning a ship into or out of battle.
// Used when a new ship warps in, or a ship escapes by warping out, but not
// when a Pkunk ship is reborn.
void
ship_transition (ELEMENT *ElementPtr)
{
if (ElementPtr->state_flags & PLAYER_SHIP)
{
if (ElementPtr->state_flags & APPEARING)
{
ElementPtr->life_span = HYPERJUMP_LIFE;
ElementPtr->preprocess_func = ship_transition;
ElementPtr->postprocess_func = NULL;
SetPrimType (&DisplayArray[ElementPtr->PrimIndex], NO_PRIM);
ElementPtr->state_flags |= NONSOLID | FINITE_LIFE | CHANGING;
}
else if (ElementPtr->life_span < HYPERJUMP_LIFE)
{
if (ElementPtr->life_span == NORMAL_LIFE
&& ElementPtr->crew_level)
{
ElementPtr->current.image.frame =
ElementPtr->next.image.frame =
SetEquFrameIndex (
ElementPtr->current.image.farray[0],
ElementPtr->current.image.frame);
SetPrimType (&DisplayArray[ElementPtr->PrimIndex], STAMP_PRIM);
InitIntersectStartPoint (ElementPtr);
InitIntersectEndPoint (ElementPtr);
InitIntersectFrame (ElementPtr);
ZeroVelocityComponents (&ElementPtr->velocity);
ElementPtr->state_flags &= ~(NONSOLID | FINITE_LIFE);
ElementPtr->state_flags |= CHANGING;
ElementPtr->preprocess_func = ship_preprocess;
ElementPtr->postprocess_func = ship_postprocess;
}
return;
}
}
{
HELEMENT hShipImage;
ELEMENT *ShipImagePtr;
STARSHIP *StarShipPtr;
GetElementStarShip (ElementPtr, &StarShipPtr);
LockElement (StarShipPtr->hShip, &ShipImagePtr);
if (!(ShipImagePtr->state_flags & NONSOLID))
{
ElementPtr->preprocess_func = NULL;
}
else if ((hShipImage = AllocElement ()))
{
#define TRANSITION_SPEED DISPLAY_TO_WORLD (40 << RESOLUTION_FACTOR) // JMS_GFX
#define TRANSITION_LIFE 1
COUNT angle;
PutElement (hShipImage);
angle = FACING_TO_ANGLE (StarShipPtr->ShipFacing);
LockElement (hShipImage, &ShipImagePtr);
ShipImagePtr->playerNr = NEUTRAL_PLAYER_NUM;
ShipImagePtr->state_flags = APPEARING | FINITE_LIFE | NONSOLID;
ShipImagePtr->thrust_wait = TRANSITION_LIFE;
ShipImagePtr->life_span = ShipImagePtr->thrust_wait;
// When the element "dies", in the death_func
// 'cycle_ion_trail', it is given new life a number of
// times, by setting life_span to thrust_wait.
SetPrimType (&DisplayArray[ShipImagePtr->PrimIndex],
STAMPFILL_PRIM);
SetPrimColor (&DisplayArray[ShipImagePtr->PrimIndex],
START_ION_COLOR);
ShipImagePtr->colorCycleIndex = 0;
ShipImagePtr->current.image = ElementPtr->current.image;
ShipImagePtr->current.location = ElementPtr->current.location;
if (!(ElementPtr->state_flags & PLAYER_SHIP))
{
ShipImagePtr->current.location.x +=
COSINE (angle, TRANSITION_SPEED);
ShipImagePtr->current.location.y +=
SINE (angle, TRANSITION_SPEED);
ElementPtr->preprocess_func = NULL;
}
else if (ElementPtr->crew_level)
{
ShipImagePtr->current.location.x -=
COSINE (angle, TRANSITION_SPEED)
* (ElementPtr->life_span - 1);
ShipImagePtr->current.location.y -=
SINE (angle, TRANSITION_SPEED)
* (ElementPtr->life_span - 1);
ShipImagePtr->current.location.x =
WRAP_X (ShipImagePtr->current.location.x);
ShipImagePtr->current.location.y =
WRAP_Y (ShipImagePtr->current.location.y);
}
ShipImagePtr->preprocess_func = ship_transition;
ShipImagePtr->death_func = cycle_ion_trail;
SetElementStarShip (ShipImagePtr, StarShipPtr);
UnlockElement (hShipImage);
}
UnlockElement (StarShipPtr->hShip);
}
}
void
spawn_ion_trail (ELEMENT *ElementPtr)
{
STARSHIP *StarShipPtr;
SHIP_INFO *ShipInfoPtr;
HELEMENT hIonElement;
assert (ElementPtr->state_flags & PLAYER_SHIP);
// JMS: Get the pointers to element's owner ship.
// They are needed to see if the ship's thrust is damaged
GetElementStarShip (ElementPtr, &StarShipPtr);
ShipInfoPtr = &StarShipPtr->RaceDescPtr->ship_info;
hIonElement = AllocElement ();
if (hIonElement)
{
#define ION_LIFE 1
COUNT angle;
RECT r;
ELEMENT *IonElementPtr;
STARSHIP *StarShipPtr;
GetElementStarShip (ElementPtr, &StarShipPtr);
angle = FACING_TO_ANGLE (StarShipPtr->ShipFacing) + HALF_CIRCLE;
GetFrameRect (StarShipPtr->RaceDescPtr->ship_data.ship[0], &r);
r.extent.height = DISPLAY_TO_WORLD (r.extent.height + r.corner.y);
InsertElement (hIonElement, GetHeadElement ());
LockElement (hIonElement, &IonElementPtr);
IonElementPtr->playerNr = NEUTRAL_PLAYER_NUM;
IonElementPtr->state_flags = APPEARING | FINITE_LIFE | NONSOLID;
IonElementPtr->thrust_wait = ION_LIFE;
IonElementPtr->life_span = IonElementPtr->thrust_wait;
// When the element "dies", in the death_func
// 'cycle_ion_trail', it is given new life a number of
// times, by setting life_span to thrust_wait.
SetPrimType (&DisplayArray[IonElementPtr->PrimIndex], POINT_PRIM);
// JMS: Damaged thruster emits differently colored particles
if (ShipInfoPtr->damage_flags & DAMAGE_THRUST)
{
SetPrimColor (&DisplayArray[IonElementPtr->PrimIndex],
START_ION_COLOR_DAMAGED);
}
else
{
SetPrimColor (&DisplayArray[IonElementPtr->PrimIndex],
START_ION_COLOR);
}
IonElementPtr->colorCycleIndex = 0;
IonElementPtr->current.image.frame =
DecFrameIndex (stars_in_space);
IonElementPtr->current.image.farray = &stars_in_space;
IonElementPtr->current.location = ElementPtr->current.location;
IonElementPtr->current.location.x +=
(COORD)COSINE (angle, r.extent.height);
IonElementPtr->current.location.y +=
(COORD)SINE (angle, r.extent.height);
IonElementPtr->death_func = cycle_ion_trail;
SetElementStarShip (IonElementPtr, StarShipPtr);
{
/* normally done during preprocess, but because
* object is being inserted at head rather than
* appended after tail it may never get preprocessed.
*/
IonElementPtr->next = IonElementPtr->current;
--IonElementPtr->life_span;
IonElementPtr->state_flags |= PRE_PROCESS;
}
UnlockElement (hIonElement);
}
}
static COUNT
initialize_flak (ELEMENT *ShipPtr, HELEMENT MissileArray[])
{
COUNT i;
STARSHIP *StarShipPtr;
MISSILE_BLOCK MissileBlock;
GetElementStarShip (ShipPtr, &StarShipPtr);
MissileBlock.cx = ShipPtr->next.location.x;
MissileBlock.cy = ShipPtr->next.location.y;
MissileBlock.farray = StarShipPtr->RaceDescPtr->ship_data.weapon;
MissileBlock.face = MissileBlock.index = StarShipPtr->ShipFacing;
MissileBlock.sender = ShipPtr->playerNr;
MissileBlock.flags = IGNORE_SIMILAR;
MissileBlock.pixoffs = SPATHI_FORWARD_OFFSET;
MissileBlock.speed = (MISSILE_SPEED << RESOLUTION_FACTOR);
MissileBlock.hit_points = MISSILE_HITS;
MissileBlock.damage = MISSILE_DAMAGE;
MissileBlock.life = MISSILE_LIFE;
MissileBlock.preprocess_func = flak_preprocess;
MissileBlock.blast_offs = MISSILE_OFFSET;
for(i = 0; i < 3; ++i)
{
if (i == 0)
{
MissileBlock.cx = ShipPtr->next.location.x;
MissileBlock.cy = ShipPtr->next.location.y;
}
else if (i == 1)
{
MissileBlock.cx = ShipPtr->next.location.x
+ COSINE(FACING_TO_ANGLE(StarShipPtr->ShipFacing + 4), 12);
MissileBlock.cy = ShipPtr->next.location.y
+ SINE(FACING_TO_ANGLE(StarShipPtr->ShipFacing + 4), 12);
}
else if (i == 2)
{
MissileBlock.cx = ShipPtr->next.location.x
+ COSINE(FACING_TO_ANGLE(StarShipPtr->ShipFacing + 4), -12);
MissileBlock.cy = ShipPtr->next.location.y
+ SINE(FACING_TO_ANGLE(StarShipPtr->ShipFacing + 4), -12);
}
if ((MissileArray[i] = initialize_missile (&MissileBlock)))
{
SIZE dx, dy, angle, speed;
ELEMENT *MissilePtr;
LockElement (MissileArray[i], &MissilePtr);
if (i > 0)
{
angle = GetVelocityTravelAngle (&MissilePtr->velocity);
GetCurrentVelocityComponents(&MissilePtr->velocity, &dx, &dy);
speed = square_root (dx*dx + dy*dy);
if (i == 1)
angle += 1;
else if (i == 2)
angle -= 1;
SetVelocityComponents(&MissilePtr->velocity, COSINE(angle, speed), SINE(angle, speed));
}
GetCurrentVelocityComponents (&ShipPtr->velocity, &dx, &dy);
// Add the Eluder's velocity to its projectiles.
DeltaVelocityComponents (&MissilePtr->velocity, dx, dy);
MissilePtr->current.location.x -= VELOCITY_TO_WORLD (dx);
MissilePtr->current.location.y -= VELOCITY_TO_WORLD (dy);
MissilePtr->turn_wait = 1;
UnlockElement (MissileArray[i]);
}
}
return (3);
}
static void
phoenix_transition (ELEMENT *ElementPtr)
{
HELEMENT hShipImage;
ELEMENT *ShipImagePtr;
STARSHIP *StarShipPtr;
GetElementStarShip (ElementPtr, &StarShipPtr);
LockElement (StarShipPtr->hShip, &ShipImagePtr);
if (!(ShipImagePtr->state_flags & NONSOLID))
{
ElementPtr->preprocess_func = NULL;
}
else if ((hShipImage = AllocElement ()))
{
#define TRANSITION_SPEED DISPLAY_TO_WORLD (20)
COUNT angle;
PutElement (hShipImage);
LockElement (hShipImage, &ShipImagePtr);
ShipImagePtr->playerNr = NEUTRAL_PLAYER_NUM;
ShipImagePtr->state_flags = APPEARING | FINITE_LIFE | NONSOLID;
ShipImagePtr->life_span = TRANSITION_LIFE;
SetPrimType (&(GLOBAL (DisplayArray))[ShipImagePtr->PrimIndex],
STAMPFILL_PRIM);
SetPrimColor (
&(GLOBAL (DisplayArray))[ShipImagePtr->PrimIndex],
START_PHOENIX_COLOR);
ShipImagePtr->colorCycleIndex = 0;
ShipImagePtr->current.image = ElementPtr->current.image;
ShipImagePtr->current.location = ElementPtr->current.location;
if (!(ElementPtr->state_flags & PLAYER_SHIP))
{
angle = ElementPtr->mass_points;
ShipImagePtr->current.location.x +=
COSINE (angle, TRANSITION_SPEED);
ShipImagePtr->current.location.y +=
SINE (angle, TRANSITION_SPEED);
ElementPtr->preprocess_func = NULL;
}
else
{
angle = FACING_TO_ANGLE (StarShipPtr->ShipFacing);
ShipImagePtr->current.location.x -=
COSINE (angle, TRANSITION_SPEED)
* (ElementPtr->life_span - 1);
ShipImagePtr->current.location.y -=
SINE (angle, TRANSITION_SPEED)
* (ElementPtr->life_span - 1);
ShipImagePtr->current.location.x =
WRAP_X (ShipImagePtr->current.location.x);
ShipImagePtr->current.location.y =
WRAP_Y (ShipImagePtr->current.location.y);
}
ShipImagePtr->mass_points = (BYTE)angle;
ShipImagePtr->preprocess_func = phoenix_transition;
ShipImagePtr->death_func = spawn_phoenix_trail;
SetElementStarShip (ShipImagePtr, StarShipPtr);
UnlockElement (hShipImage);
}
UnlockElement (StarShipPtr->hShip);
}
