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(define-module (bonnie-bee boss)
#:use-module (bonnie-bee actor)
#:use-module (bonnie-bee assets)
#:use-module (bonnie-bee bullet)
#:use-module (chickadee audio)
#:use-module (chickadee game-loop)
#:use-module (chickadee graphics particles)
#:use-module (chickadee math)
#:use-module (chickadee math rect)
#:use-module (chickadee math vector)
#:use-module (chickadee scripting)
#:use-module (chickadee utils)
#:use-module (oop goops)
#:use-module (catbird asset)
#:use-module (catbird node)
#:use-module (catbird node-2d)
#:export (<boss>))
(define-class <boss> (<grounded> <damageable> <actor>)
(invincible? #:accessor invincible? #:init-value #t))
(define-method (on-boot (boss <boss>))
(attach-to boss
(make <animated-sprite>
#:atlas beetle-atlas
#:origin (vec2 64.0 32.0)
#:animations `((default . ,(make <animation>
#:frames #(0 1)
#:frame-duration 0.4))))))
(define-method (on-enter (boss <boss>))
(define (circle-shot n offset speed type)
(let loop ((i 0))
(when (< i n)
(let ((theta (+ (* (/ tau n) i) offset)))
(add-bullet (& (parent boss) bullets)
type
(position boss)
(vec2 (* (cos theta) speed)
(* (sin theta) speed)))
(loop (+ i 1))))))
(define (random-shot speed)
(let ((theta (* (- pi) (random:uniform))))
(add-bullet (& (parent boss) bullets)
medium-enemy-bullet
(position boss)
(vec2 (* (cos theta) speed)
(* (sin theta) speed)))))
(next-method)
(run-script boss
(sleep 5.0)
(set! (invincible? boss) #f)
(let ((big-speed 2.0)
(little-speed 1.0))
(while (> (health boss) 800)
(let ((d (direction-to boss (& (parent boss) player))))
(audio-play (artifact enemy-shoot-sound))
(add-bullet (& (parent boss) bullets)
large-enemy-bullet
(position boss)
(vec2* d big-speed))
(let loop ((i 0))
(when (< i 16)
(random-shot little-speed)
(sleep (* (current-timestep) 2.0))
(loop (+ i 1)))))))
(sleep 2.5)
(let loop ((theta 0.0))
(unless (<= (health boss) 400)
(audio-play (artifact enemy-shoot-sound))
(repeat 2 (random-shot 0.5))
(circle-shot 2 theta 1.5 large-enemy-bullet)
(circle-shot 6 (- theta) 1.0 medium-enemy-bullet)
(sleep (* (current-timestep) 10))
(loop (+ theta (/ pi 17.1)))))
(sleep 2.5)
(let loop ((theta 0.0))
(audio-play (artifact enemy-shoot-sound))
(circle-shot 10 (* theta 2.0) 1.5 large-enemy-bullet)
(circle-shot 4 (- theta) 1.0 medium-enemy-bullet)
(sleep (* (current-timestep) 10))
(loop (+ theta (/ pi 37.1))))))
(define-method (on-collide (boss <boss>) (bullet <bullet>))
(cond
((player-primary-bullet? bullet)
(unless (invincible? boss)
(damage boss 1))
(kill-bullet bullet)
#t)
((player-bomb-bullet? bullet)
(unless (invincible? boss)
(damage boss 10))
(kill-bullet bullet))
(else #f)))
(define-method (on-death (boss <boss>))
(audio-play (artifact explosion-sound))
(add-particle-emitter (particles (& (parent boss) particles))
(make-particle-emitter (world-hitbox boss) 20 30)))
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