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ship.c
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ship.c
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#include "config.h"
#include "allegro.h"
#include <math.h>
#include "globvars.h"
#include "stuff.h"
#include "palette.h"
#include "display.h"
#include "level.h"
#include "input.h"
#include "bullet.h"
#include "bullet.h"
#include "cloud.h"
#include "menu.h"
#include "sound.h"
#define FIGHTER_DRAG 1005
int create_ship(int type, int a);
void destroy_ship(int a, int e);
void move_ship(int a, int e);
void move_wship(int a, int e);
void ship_fire(int a, int e, int burst_status);
void carrier_launches(int a, int carrier_e);
int attack_angle(int a, int e, int target);
int attack_angle_lead(int a, int e, int target, int b_speed);
int angle_to_formation_position(int a, int e);
void convoy_position(int a, int e);
int angle_to_convoy_position(int a, int e);
void drag_ship(int a, int e, int dragged);
void ship_action(int a, int e);
void count_ship_sprite(int a, int e, int sprite1, int sprite2, int inc);
int edist(int a, int e, int target);
int edist_test_less(int a, int e, int target, int max);
int edist_test_more(int a, int e, int target, int min);
int efrienddist(int a, int e, int target);
int turret_track_target(int a, int e, int t, int target, int forbid);
int turret_track_target_lead(int a, int e, int t, int target, int forbid, int b_speed);
void turret_fire(int a, int e, int t);
void ship_explodes(int a, int e);
void big_explode(int x, int y, int x_speed, int y_speed, int flares, int flare_size, int flare_speed, int col);
void turret_find_target(int a, int e, int t);
int fighter_find_target(int a, int e, int x, int y);
int get_target_x(int a, int target, int x);
int get_target_y(int a, int target, int y);
void wship_part_explodes(int a, int e, int part);
int wship_breakup(int a, int e);
void wship_starts_breaking_up(int a, int e);
void wship_final_explosion(int a, int e);
void wship_jump_out(int a, int e);
int wship_jumping_out(int a, int e);
void jump_clouds(int a, int e);
void record_ship_destroyed(int a, int e, int owner);
void fighter_explosion(int a, int e, int flare1_flares, int flare1_size, int flare1_speed,
int fadeballs, int fadeballs_size, int fadeballs_dist);
int next_ship;
void run_turrets(int a, int e);
void calculate_ship_energy(int a, int e);
void recharge_wship_shield(int a, int e, int energy);
void recharge_fighter_shield(int a, int e);
void ship_energy_use(int a, int e);
void formation_position(int a, int e);
void wing_formation_position(int a, int e, int p);
int target_ship_angle(int a, int target);
int target_ship_class(int a, int target);
enum
{
BURST_NO,
BURST_START,
BURST_CONTINUE
};
void init_ships(void)
{
int a, e;
for (a = 0; a < NO_TEAMS; a ++)
{
for (e = 0; e < NO_SHIPS; e ++)
{
EE.type = SHIP_NONE;
}
}
next_ship = 5;
}
/*
Tries to create an ship, and returns its index if successful (or -1 if not).
The calling function can use that index to set the ship's properties.
*/
int create_ship(int type, int a)
{
int e, i;
for (e = 0; e < NO_SHIPS + 1; e ++)
{
if (e == NO_SHIPS)
return -1;
if (EE.type == SHIP_NONE)
break;
}
EE.type = type;
EE.think_count = 1;
EE.think_count2 = 1;
EE.turning = 0;
EE.turning_time = 0;
EE.sprite_count = 0;
EE.burst = 0;
EE.recycle = 0;
EE.carrier_launch = SHIP_NONE;
EE.leader_awaiting_escort = 0;
EE.command = -1;
EE.player_leader = -1;
EE.player_command = COMMAND_NONE;
EE.letter = -1;
EE.target = TARGET_NONE;
EE.frustration = 0;
EE.force_away = 0;
EE.leader = -1;
EE.stored_angle = -1;
EE.convoy = CONVOY_NONE;
EE.breakup = 0;
EE.jump = 0;
arena.srecord [SREC_CREATED] [a] [type] ++;
switch(type)
{
case SHIP_FIGHTER:
EE.sprite = FIGHTER_SPRITE_BASIC_1;
break;
case SHIP_OLD2:
EE.sprite = WSHIP_SPRITE_OLD2;
break;
case SHIP_OLD3:
EE.sprite = WSHIP_SPRITE_OLD3;
break;
case SHIP_FRIEND3:
EE.sprite = WSHIP_SPRITE_FRIEND3;
break;
case SHIP_SCOUT2:
EE.sprite = WSHIP_SPRITE_SCOUT2;
break;
case SHIP_SCOUT3:
EE.sprite = WSHIP_SPRITE_SCOUT3;
break;
case SHIP_SCOUTCAR:
EE.sprite = WSHIP_SPRITE_SCOUTCAR;
break;
case SHIP_BOMBER:
EE.sprite = FIGHTER_SPRITE_BOMBER_1;
break;
case SHIP_FIGHTER_FRIEND:
EE.sprite = FIGHTER_SPRITE_FRIEND_1;
break;
case SHIP_ESCOUT:
EE.sprite = FIGHTER_SPRITE_ESCOUT_1;
break;
case SHIP_EINT:
EE.sprite = FIGHTER_SPRITE_EINT_1;
break;
case SHIP_EBASE:
EE.sprite = WSHIP_SPRITE_EBASE;
break;
}
for (i = 0; i < MAX_PARTS; i ++)
{
EE.max_hp [i] = eclass[type].hp [i];
EE.hp [i] = EE.max_hp [i];
EE.hit_pulse [i] = 0;
}
for (i = 0; i < MAX_ENGINES; i ++)
{
EE.engine [i] = 0;
}
for (i = 0; i < NO_TURRETS; i ++)
{
EE.turret_firing [i] = 0;
EE.turret_target [i] = TARGET_NONE;
EE.turret_recoil [i] = 0;
EE.turret_energy [i] = 0;
EE.turret_recycle [i] = 0;
EE.turret_burst [i] = BURST_NONE;
EE.turret_status [i] = 0;
}
EE.structure = eclass[type].structure;
EE.max_structure = eclass[type].structure;
EE.hit_pulse_structure = 0;
EE.shield = 2;
EE.max_shield = EE.shield;
EE.shield_bar_pulse = 0;
EE.shield_up = 1;
EE.shield_threshhold = EE.max_shield / 3;
EE.shield_generator = 1;
EE.engine_power = eclass[EE.type].engine_output;
for (i = 0; i < PULSE; i ++)
{
EE.spulse_time [i] = 0;
}
EE.leading_formation = 0;
EE.formation_size = 0;
EE.formation_wait = 0;
EE.just_hit = 0;
if (eclass[type].ship_class == ECLASS_WSHIP)
{
EE.energy_steps_hp [0] = (EE.structure * 7) / 10;
EE.energy_steps_hp [1] = (EE.structure * 3) / 10;
EE.energy_steps_production [0] = (eclass[EE.type].energy_production [0] * 7) / 10;
EE.energy_steps_production [1] = (eclass[EE.type].energy_production [0] * 4) / 10;
}
calculate_ship_energy(a, e);
return e;
}
void carrier_launches(int a, int carrier_e)
{
int e = create_ship(ship[a][carrier_e].carrier_launch, a);
EE.convoy = CONVOY_NONE;
setup_new_ship(a, e, 0); // no subtypes
calculate_threat();
EE.x = ship[a][carrier_e].x + xpart(ship[a][carrier_e].angle, 15000);
EE.y = ship[a][carrier_e].y + ypart(ship[a][carrier_e].angle, 15000);
EE.x_speed = ship[a][carrier_e].x_speed + xpart(ship[a][carrier_e].angle, 5000);
EE.y_speed = ship[a][carrier_e].y_speed + ypart(ship[a][carrier_e].angle, 5000);
EE.action = ACT_AWAY;
int c = quick_cloud(CLOUD_FADEBALL,
EE.x, EE.y,
0, 0, 30 + grand(10), 2, 0);
if (c != -1)
{
CC.status = 15 + grand(11);
}
int e2;
// if another fighter has recently launched nearby and is waiting for followers, form up with it:
for (e2 = 0; e2 < NO_SHIPS; e2++)
{
if (ship[a][e2].type == SHIP_NONE
|| ship[a][e2].leader_awaiting_escort == 0
|| abs(EE.y - ship[a][e2].y) + abs(EE.x - ship[a][e2].x) > 1500000) // don't worry about precision here.
continue;
EE.leader = e2;
EE.formation_position = ship[a][e2].available_formation_position;
ship[a][e2].formation_size ++;
if (eclass[EE.type].fighter_class == FCLASS_BOMBER)
EE.mission = MISSION_ATTACK_WSHIP;
else
EE.mission = MISSION_ESCORT;
break;
}
if (EE.leader == -1) // no leader found - new ship becomes leader of a group (EE.leader is set to -1 in create_ship)
{
EE.leader_awaiting_escort = 500;
EE.available_formation_position = 1;
if (eclass[EE.type].fighter_class == FCLASS_BOMBER)
EE.mission = MISSION_ATTACK_WSHIP;
else
EE.mission = MISSION_SCRAMBLE;
}
}
void calculate_ship_energy(int a, int e)
{
// int t;
EE.energy_production = eclass[EE.type].energy_production [0];
if (EE.structure < EE.energy_steps_hp [0])
EE.energy_production = EE.energy_steps_production [0];
if (EE.structure < EE.energy_steps_hp [1])
EE.energy_production = EE.energy_steps_production [1];
/*
for (t = 0; t < MAX_PARTS; t ++)
{
if (eclass[EE.type].energy_production [t] == 0)
break;
if (EE.hp [t] > 0)
EE.energy_production += eclass[EE.type].energy_production [t];
}*/
}
// number of ticks that group leader travels slowly when starting a formation:
#define FORMATION_WAIT_TIME 500
void run_ships(void)
{
int a, e, t;
int angle_diff;
int dist;
int target_dist = 0;
// int engine_power;
/* next_ship --;
if (next_ship <= 0)
{
e = create_ship(SHIP_EXAMPLE);
if (e != -1)
{
EE.x = grand(600000) + 20000;
EE.y = grand(440000) + 20000;
EE.x_speed = grand(5000) - 2500;
EE.y_speed = grand(5000) - 2500;
EE.recycle = 50;
}
// for now we'll rely on create_ship failing if there are too many ships.
next_ship = 500;
}*/
// now let's run through all ships and make them work:
for (a = 0; a < NO_TEAMS; a ++)
{
for (e = 0; e < NO_SHIPS; e ++)
{
if (EE.type == SHIP_NONE)
continue;
EE.counter ++;
if (EE.leader_awaiting_escort > 0)
EE.leader_awaiting_escort --;
// engine_power = 10;
/*
Things general to all ships go here:
*/
for (t = 0; t < eclass[EE.type].parts; t ++)
{
// textprintf_ex(screen, font, 40 + 180*t, 60 + 15*e, -1, -1, "a %i, e %i, type %i", a, e, EE.type);
if (EE.hit_pulse [t] > 0)
EE.hit_pulse [t] --;
// textprintf_right_ex(screen, font, 35 + 180*t, 60 + 15*e, -1, -1, "done");
}
if (EE.hit_pulse_structure > 0)
EE.hit_pulse_structure --;
if (EE.shield_bar_pulse > 0)
EE.shield_bar_pulse --;
/*
Things specific to particular classes of ships go here:
*/
switch(EE.type)
{
case SHIP_FIGHTER:
case SHIP_ESCOUT:
case SHIP_EINT:
case SHIP_FIGHTER_FRIEND:
recharge_fighter_shield(a, e);
if (EE.burst > 0)
{
if (EE.recycle <= 0)
{
ship_fire(a, e, BURST_CONTINUE);
if (EE.burst <= 0)
{
EE.action = ACT_AWAY;
if (EE.player_leader != -1)
EE.action = ACT_WING_AWAY;
if (EE.target >= 0
&& eclass[ship[a^1][EE.target].type].ship_class == ECLASS_WSHIP)
EE.force_away = 50 + grand(50);
}
}
if (EE.target != TARGET_NONE)
{
// EE.target_angle = attack_angle(a, e, EE.target);
// EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.think_count --;
// EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
if (EE.think_count <= 0)
{
// angle_diff = angle_difference(EE.angle, EE.target_angle);
// if (angle_diff > ANGLE_64)
{
if (target_ship_class(a^1, EE.target) == ECLASS_WSHIP)
EE.target_angle = attack_angle(a, e, EE.target);
else
EE.target_angle = attack_angle_lead(a, e, EE.target, 6000);
EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.turning_time = 2;
EE.think_count = 2;//EE.turning_time;// * 2;
}
}
}
}
else
switch(EE.action)
{
/* case ACT_FORM:
formation_position(a, e);
EE.think_count --;
EE.turning_time --;
if (EE.turning_time <= 0)
EE.turning = 0;
EE.engine_power = ship[a][EE.leader].engine_power; // match speed with leader
if (abs(EE.x - EE.formation_x) + abs(EE.y - EE.formation_y) < 10000
&& xyedist(EE.formation_x, EE.formation_y, a, e) < 10000)
{
EE.target_angle = formation_angle(a, e);
if (EE.think_count <= 0)
{
angle_diff = angle_difference(EE.angle, EE.target_angle);
if (angle_diff > ANGLE_64)
{
EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.turning_time = angle_diff / EE.turn_speed;
EE.think_count = EE.turning_time;// * 2;
}
}
}
else
{
EE.target_angle = formation_angle(a, e);
EE.engine_power = ship[a][EE.leader].engine_power; // match speed with leader
EE.engine_power = eclass[EE.type].engine_output;
if (EE.think_count <= 0)
{
angle_diff = angle_difference(EE.angle, EE.target_angle);
if (angle_diff > ANGLE_64)
{
EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.turning_time = angle_diff / EE.turn_speed;
EE.think_count = EE.turning_time;// * 2;
}
}
}
break;*/
case ACT_GUARD:
formation_position(a, e);
EE.think_count --;
EE.turning_time --;
if (EE.turning_time <= 0)
EE.turning = 0;
/* if (ship[a][EE.leader].action != ACT_TRANSIT)
{
EE.action = ACT_SEEK;
EE.think_count = 0;
EE.turning_time = 0;
break;
}
need to have some equivalent of this which makes fighters seek their own targets when wship engages
*/
if (EE.just_hit)
{
EE.action = ACT_EVADE;
EE.think_count = 10 + grand(30);
EE.turning = pos_or_neg(1);
break;
}
// ship[a][EE.leader].leading_formation = 1;
if (EE.think_count <= 0)
{
// first - if the fighter's mission is escorting bombers, occasionally check to see whether there
// are fighters nearby to protect the bombers from.
dist = fighter_find_target(a, e, ship[a][EE.leader].x, ship[a][EE.leader].y);
if (dist > EE.target_range)
EE.target = TARGET_NONE;
if (EE.target != TARGET_NONE)
{
EE.action = ACT_SEEK;
EE.think_count = 1;
EE.target_range = EE.base_target_range + grand(EE.base_target_range);
// break;
}
EE.think_count = 10;
EE.engine_power = eclass[EE.type].engine_output;
if (abs(EE.x - EE.formation_x) < 150000 && abs(EE.y - EE.formation_y) < 150000
&& (dist = xyedist(EE.formation_x, EE.formation_y, a, e)) < 150000)
{
if (abs(EE.x - EE.formation_x) < 30000 && abs(EE.y - EE.formation_y) < 30000
&& (dist = xyedist(EE.formation_x, EE.formation_y, a, e)) < 30000)
{
EE.engine_power = ship[a][EE.leader].engine_power;
EE.target_angle = ship[a][EE.leader].angle;
angle_diff = angle_difference(EE.angle, EE.target_angle);
if (angle_diff < ANGLE_16)
break;
EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.turning_time = angle_diff / EE.turn_speed;
EE.think_count = EE.turning_time;// * 2;
break;
}
EE.target_angle = angle_to_formation_position(a, e);
angle_diff = angle_difference(EE.angle, EE.target_angle);
EE.engine_power = ship[a][EE.leader].engine_power; // match speed with leader
if (angle_diff > ANGLE_2 - ANGLE_8)
{
EE.turning = 0;
EE.engine_power = 40;
// drag_ship(a, e, 100);
EE.think_count = 20;
break;
}
}
else
{
EE.target_angle = angle_to_formation_position(a, e);
angle_diff = angle_difference(EE.angle, EE.target_angle);
}
if (angle_diff > ANGLE_32)
{
EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.turning_time = angle_diff / EE.turn_speed;
EE.think_count = EE.turning_time;// * 2;
}
}
break;
case ACT_FORM:
formation_position(a, e);
EE.think_count --;
EE.turning_time --;
if (EE.turning_time <= 0)
EE.turning = 0;
if (ship[a][EE.leader].action != ACT_TRANSIT)
{
EE.action = ACT_SEEK;
EE.think_count = 0;
EE.turning_time = 0;
break;
}
if (EE.just_hit)
{
EE.action = ACT_EVADE;
EE.think_count = 10 + grand(30);
EE.turning = pos_or_neg(1);
break;
}
ship[a][EE.leader].leading_formation = 1;
if (EE.think_count <= 0)
{
// first - if the fighter's mission is escorting bombers, occasionally check to see whether there
// are fighters nearby to protect the bombers from.
if (EE.mission == MISSION_ESCORT)
{
dist = fighter_find_target(a, e, ship[a][EE.leader].x, ship[a][EE.leader].y);
if (dist > EE.target_range)
EE.target = TARGET_NONE;
if (EE.target != TARGET_NONE)
{
EE.action = ACT_SEEK;
EE.think_count = 1;
// if a fighter breaks formation to defend (or if it doesn't reach formation position because it's
// defending), the leader shouldn't wait for it so it is counted as having reached formation:
EE.target_range = EE.base_target_range + grand(EE.base_target_range);
break;
}
}
EE.think_count = 10;
EE.engine_power = eclass[EE.type].engine_output;
if (abs(EE.x - EE.formation_x) < 100000 && abs(EE.y - EE.formation_y) < 100000
&& (dist = xyedist(EE.formation_x, EE.formation_y, a, e)) < 100000)
{
if (abs(EE.x - EE.formation_x) < 30000 && abs(EE.y - EE.formation_y) < 30000
&& (dist = xyedist(EE.formation_x, EE.formation_y, a, e)) < 30000)
{
EE.engine_power = ship[a][EE.leader].engine_power;
EE.target_angle = ship[a][EE.leader].angle;
angle_diff = angle_difference(EE.angle, EE.target_angle);
if (angle_diff < ANGLE_16)
break;
EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.turning_time = angle_diff / EE.turn_speed;
EE.think_count = EE.turning_time;// * 2;
break;
}
EE.target_angle = angle_to_formation_position(a, e);
angle_diff = angle_difference(EE.angle, EE.target_angle);
EE.engine_power = ship[a][EE.leader].engine_power; // match speed with leader
if (angle_diff > ANGLE_2 - ANGLE_8)
{
EE.turning = 0;
EE.engine_power = 40;
// drag_ship(a, e, 100);
EE.think_count = 20;
break;
}
}
else
{
EE.target_angle = angle_to_formation_position(a, e);
angle_diff = angle_difference(EE.angle, EE.target_angle);
}
if (angle_diff > ANGLE_32)
{
EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.turning_time = angle_diff / EE.turn_speed;
EE.think_count = EE.turning_time;// * 2;
}
}
break;
case ACT_AWAY:
EE.engine_power = eclass[EE.type].engine_output;
EE.force_away --;
EE.turning = 0;
if (EE.force_away > 0)
break;
if (EE.leader != -1)
{
if (EE.mission == MISSION_ESCORT
&& ship[a][EE.leader].action == ACT_TRANSIT)
{
EE.action = ACT_FORM;
break;
}
if (EE.mission == MISSION_GUARD)
{
EE.action = ACT_GUARD;
break;
}
}
EE.turning = 0;
// count_ship_sprite(a, e, FIGHTER_SPRITE_BASIC_1, FIGHTER_SPRITE_BASIC_4, -20);
if (EE.target == TARGET_NONE)
{
EE.think_count --;
if (EE.think_count <= 0)
{
target_dist = fighter_find_target(a, e, EE.x, EE.y);
if (EE.target != TARGET_NONE)
{
EE.action = ACT_SEEK;
if (EE.formation_size > 0
&& target_dist > 1000000)
{
EE.action = ACT_TRANSIT; // group leaders enter transit mode if target distant. Followers form up.
EE.formation_wait = FORMATION_WAIT_TIME;
}
}
else
EE.think_count = 30;
}
}
else
{
if (edist_test_more(a, e, EE.target, EE.away_dist))
{
fighter_find_target(a, e, EE.x, EE.y);
if (EE.target != TARGET_NONE)
{
EE.action = ACT_SEEK;
if (EE.formation_size > 0
&& target_dist > 1000000)
{
EE.action = ACT_TRANSIT; // group leaders enter transit mode if target distant. Followers form up.
EE.formation_wait = FORMATION_WAIT_TIME;
}
}
EE.think_count = 1;
}
}
break;
case ACT_ATTACK:
EE.engine_power = eclass[EE.type].engine_output;
if (EE.target == TARGET_NONE)
{
EE.action = ACT_AWAY;
EE.think_count = 10;
break;
}
EE.turning = 0;
// count_ship_sprite(a, e, FIGHTER_SPRITE_BASIC_1, FIGHTER_SPRITE_BASIC_4, 40);
if (EE.recycle <= 0)
{
ship_fire(a, e, BURST_START);
}
// EE.engine_power = 5;
if (EE.burst <= 0)
{
EE.action = ACT_AWAY;
EE.think_count = 10;
/* if (EE.target >= 0
&& eclass[ship[a^1][EE.target].type].ship_class == ECLASS_WSHIP)
EE.force_away = 50 + grand(50);*/
break;
}
EE.turning_time --;
if (EE.turning_time <= 0)
EE.turning = 0;
EE.think_count --;
EE.target_angle = attack_angle_lead(a, e, EE.target, eclass[EE.type].bullet_speed);
if (EE.think_count <= 0)
{
// EE.target_angle = attack_angle(e);
angle_diff = angle_difference(EE.angle, EE.target_angle);
if (angle_diff > ANGLE_64)
{
EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.turning_time = angle_diff / EE.turn_speed;
EE.think_count = EE.turning_time;// * 2;
}
}
break;
case ACT_SEEK:
EE.engine_power = eclass[EE.type].engine_output;
if (EE.leader != -1)
{
if (EE.mission == MISSION_ESCORT
&& ship[a][EE.leader].action == ACT_TRANSIT
&& efrienddist(a, e, EE.leader) > EE.target_range)
{
EE.action = ACT_FORM;
break;
}
if (EE.mission == MISSION_GUARD
&& efrienddist(a, e, EE.leader) > EE.target_range)
{
EE.action = ACT_GUARD;
// break;
}
}
if (EE.target == TARGET_NONE)
{
EE.action = ACT_AWAY;
EE.think_count = 10;
break; // must break - following code assumes target value is valid
}
// count_ship_sprite(a, e, FIGHTER_SPRITE_BASIC_1, FIGHTER_SPRITE_BASIC_4, -20);
EE.turning_time --;
if (EE.turning_time <= 0)
EE.turning = 0;
EE.think_count --;
EE.frustration ++;
EE.target_angle = attack_angle_lead(a, e, EE.target, eclass[EE.type].bullet_speed);
if (EE.think_count <= 0)
{
// EE.target_angle = attack_angle(e);
angle_diff = angle_difference(EE.angle, EE.target_angle);
if (angle_diff > ANGLE_256)
{
EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.turning_time = angle_diff / EE.turn_speed;
EE.think_count = EE.turning_time;// * 2;
}
}
dist = edist(a, e, EE.target);
// shouldn't hang around for too long directly in front of target
// (otherwise you can just kill fighters with little risk by backing away while firing).
// We need to work out whether target is facing the fighter:
// (we can assume that target value is valid)
if (target_ship_class(a^1, EE.target) == ECLASS_FIGHTER
&& EE.shield_up == 0
&& dist < 450000
&& angle_difference(EE.target_angle + ANGLE_2, target_ship_angle(a^1, EE.target)) < ANGLE_16
&& grand(10) == 0)
{
EE.action = ACT_EVADE;
EE.frustration = 0;
EE.think_count = 10 + grand(30);
EE.turning = pos_or_neg(1);
}
if (dist < (EE.attack_range))
{
if (EE.recycle <= 0)
{
if (angle_difference(EE.angle, EE.target_angle) < 25 + (EE.frustration >> 4))
{
ship_fire(a, e, BURST_START);
// EE.recycle = 7;
// EE.burst --;
EE.frustration = 0;
EE.think_count = 2;
break;
}
}
if (grand(EE.frustration) > 50)
{
EE.action = ACT_EVADE;
EE.frustration = 0;
EE.think_count = 10 + grand(30);
EE.turning = pos_or_neg(1);
}
}
break;
case ACT_EVADE:
EE.engine_power = eclass[EE.type].engine_output;
EE.think_count --;
if (EE.think_count <= 0)
{
EE.action = ACT_SEEK;
}
break;
case ACT_TRANSIT: // just like ACT_SEEK but for long distance and only for group leaders. Group enters formation.
if (EE.target == TARGET_NONE)
{
EE.action = ACT_AWAY;
EE.think_count = 30;
break;
}
EE.engine_power = eclass[EE.type].engine_output;
EE.turning_time --;
if (EE.turning_time <= 0)
EE.turning = 0;
EE.think_count --;
EE.frustration = 0;
EE.target_angle = attack_angle(a, e, EE.target);
if (EE.think_count <= 0)
{
// EE.target_angle = attack_angle(e);
angle_diff = angle_difference(EE.angle, EE.target_angle);
if (angle_diff > ANGLE_64)
{
EE.turning = delta_turn_towards_angle(EE.angle, EE.target_angle, 1);
EE.turning_time = angle_diff / EE.turn_speed;
EE.think_count = EE.turning_time;// * 2;
}
}
if (edist_test_less(a, e, EE.target, EE.attack_range) && angle_difference(EE.angle, EE.target_angle) < 25 + (EE.frustration >> 4))
{
EE.action = ACT_SEEK;
// EE.burst = 4;
}
break;
/*
***************************************************************************************************8
START special player wing movement functions
***************************************************************************************************8
*/
case ACT_WING_FORM:
wing_formation_position(a, e, EE.player_leader);
EE.think_count --;
EE.think_count2 --;
EE.turning_time --;
if (EE.turning_time <= 0)
{
EE.turning = 0;
EE.think_count = 0;
EE.turning_time = 0;
}
if (EE.just_hit && EE.player_command != COMMAND_FORM)
{
EE.action = ACT_WING_EVADE;
EE.think_count = 10 + grand(30);
EE.turning = pos_or_neg(1);
break;
}
if (EE.think_count2 <= 0)
{
EE.think_count2 = 30;
// first - if the fighter's mission is escorting bombers, occasionally check to see whether there
// are fighters nearby to protect the bombers from.
if (EE.player_command == COMMAND_COVER)
{
dist = fighter_find_target(a, e, player[EE.player_leader].x, player[EE.player_leader].y);
if (dist > EE.target_range)
EE.target = TARGET_NONE;
if (EE.target != TARGET_NONE)
{
EE.action = ACT_WING_SEEK;
EE.think_count = 1;
EE.think_count2 = 50;
EE.target_range = EE.base_target_range;// + grand(EE.base_target_range);
// if (EE.target_range < dist + 10000)
// EE.target_range = dist + 10000;
break;
}
}
}
if (EE.think_count <= 0)
{
EE.think_count = 10;
EE.engine_power = eclass[EE.type].engine_output;
EE.turning = 0;
EE.wship_throttle = xyedist(EE.formation_x, EE.formation_y, a, e);
// this is just being used as debugging display storage - see display.c
#define DIST1 150000
#define DIST2 100000
if (abs(EE.x - EE.formation_x) < DIST1 && abs(EE.y - EE.formation_y) < DIST1
&& (dist = xyedist(EE.formation_x, EE.formation_y, a, e)) < DIST1)
{
EE.engine_power = eclass[EE.type].engine_output;
t = angle_to_formation_position(a, e);
if (player[EE.player_leader].accelerating == 0)
{
EE.engine_power = 0;
EE.x_speed += xpart(t, 15);
EE.y_speed += ypart(t, 15);
}
if (abs(EE.x - EE.formation_x) < DIST2 && abs(EE.y - EE.formation_y) < DIST2
&& dist < DIST2)
{
EE.target_angle = player[EE.player_leader].angle;
angle_diff = angle_difference(EE.angle, EE.target_angle);
if (player[EE.player_leader].accelerating == 0)
{
// EE.engine_power = 0;
// EE.x_speed += xpart(t, 5);
// EE.y_speed += ypart(t, 5);
// drag_ship(a, e, 990);