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stage3: telegraph moonlight rockets

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This commit is contained in:
Andrei Alexeyev 2023-01-27 23:38:36 +01:00
parent 4d247877e7
commit 53ca691e68
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GPG key ID: 72D26128040B9690
1 changed files with 44 additions and 5 deletions
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49
src/stages/stage3/spells/moonlight_rocket.c
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@ -14,6 +14,42 @@
#include "common_tasks.h"
#include "global.h"
TASK(aimcircle, { int lifetime; int focustime; }) {
auto *p = TASK_BIND(PARTICLE(
.sprite_ptr = res_sprite("fairy_circle"),
.layer = LAYER_PARTICLE_LOW,
.flags = PFLAG_NOMOVE | PFLAG_REQUIREDPARTICLE | PFLAG_MANUALANGLE | PFLAG_NOAUTOREMOVE,
.pos = global.plr.pos,
.angle_delta = M_TAU/60,
.color = RGB(2, 0.75, 0.5),
));
int spawntime = 30;
int despawntime = 30;
for(int t = 0; t < ARGS.lifetime; ++t, YIELD) {
if(t < ARGS.focustime) {
capproach_asymptotic_p(&p->pos, global.plr.pos, 0.2, 1e-3);
} else if(t == ARGS.focustime) {
p->pos = global.plr.pos;
}
float sf = fminf(t / (float)spawntime, 1.0f);
float sf2 = fminf(t / (float)(spawntime * 2), 1.0f);
float df = fminf((ARGS.lifetime - t - 1) / (float)despawntime, 1.0f);
df = glm_ease_back_out(df);
p->opacity = glm_ease_quad_out(sf) * glm_ease_quad_in(df) * 0.1f;
sf = glm_ease_quad_in(sf);
sf = glm_ease_back_out(sf) * 0.9 + sf * 0.1;
p->scale = (1+I) * (1.0f + 6 * (1 - sf));
p->angle -= p->angle_delta * 10.0f * (1 - sf2);
}
kill_projectile(p);
}
TASK(cancel_event, { CoEvent *event; }) {
coevent_cancel(ARGS.event);
}
@ -43,10 +79,10 @@ TASK(laser_bullet, { BoxedProjectile p; BoxedLaser l; CoEvent *event; int event_
kill_projectile(p);
}
TASK(rocket, { BoxedBoss boss; cmplx pos; cmplx dir; Color color; real phase; real accel_rate; }) {
TASK(rocket, { BoxedBoss boss; cmplx pos; cmplx dir; Color color; real phase; real accel_rate; int rocket_time; }) {
Boss *boss = TASK_BIND(ARGS.boss);
real dt = 60;
real dt = ARGS.rocket_time;
Laser *l = create_lasercurve4c(
ARGS.pos, dt, dt, &ARGS.color, las_sine_expanding, 2.5*ARGS.dir, M_PI/20, 0.2, ARGS.phase
);
@ -71,12 +107,12 @@ TASK(rocket, { BoxedBoss boss; cmplx pos; cmplx dir; Color color; real phase; re
);
play_sfx("redirect");
// if we get here, p must be still alive and valid
cmplx dist = global.plr.pos - p->pos;
cmplx accel = ARGS.accel_rate * cnormalize(dist);
dt = sqrt(2 * cabs(dist) / ARGS.accel_rate);
dt += 2 * rng_f64s();
l = create_lasercurve2c(p->pos, dt, dt, RGBA(0.4, 0.9, 1.0, 0.0), las_accel, 0, accel);
l->width = 15;
INVOKE_TASK(laser_bullet, ENT_BOX(p), ENT_BOX(l), &events.explosion, dt);
@ -137,6 +173,8 @@ TASK(rocket_slave, { BoxedBoss boss; real rot_speed; real rot_initial; }) {
.out_dir = &dir
);
int rocket_time = 60;
int warn_time = 20;
int rperiod = difficulty_value(220, 200, 180, 160);
real laccel = difficulty_value(0.15, 0.2, 0.25, 0.3);
@ -144,8 +182,9 @@ TASK(rocket_slave, { BoxedBoss boss; real rot_speed; real rot_initial; }) {
for(;;WAIT(rperiod)) {
play_sfx("laser1");
INVOKE_TASK(rocket, ENT_BOX(boss), slave->pos, dir, *RGBA(1.0, 1.0, 0.5, 0.0), 0, laccel);
INVOKE_TASK(rocket, ENT_BOX(boss), slave->pos, dir, *RGBA(0.5, 1.0, 0.5, 0.0), M_PI, laccel);
INVOKE_TASK_DELAYED(rocket_time - warn_time, aimcircle, 60 + warn_time, warn_time);
INVOKE_TASK(rocket, ENT_BOX(boss), slave->pos, dir, *RGBA(1.0, 1.0, 0.5, 0.0), 0, laccel, rocket_time);
INVOKE_TASK(rocket, ENT_BOX(boss), slave->pos, dir, *RGBA(0.5, 1.0, 0.5, 0.0), M_PI, laccel, rocket_time);
}
}