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;;; Copyright 2023 David Thompson
;;;
;;; Licensed under the Apache License, Version 2.0 (the "License");
;;; you may not use this file except in compliance with the License.
;;; You may obtain a copy of the License at
;;;
;;; http://www.apache.org/licenses/LICENSE-2.0
;;;
;;; Unless required by applicable law or agreed to in writing, software
;;; distributed under the License is distributed on an "AS IS" BASIS,
;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;;; See the License for the specific language governing permissions and
;;; limitations under the License.
(define-module (super-bloom dirt-ball)
#:use-module (catbird asset)
#:use-module (catbird node)
#:use-module (catbird node-2d)
#:use-module (chickadee audio)
#:use-module (chickadee graphics particles)
#:use-module (chickadee graphics texture)
#:use-module (chickadee math)
#:use-module (chickadee math rect)
#:use-module (chickadee math vector)
#:use-module (chickadee scripting)
#:use-module (oop goops)
#:use-module (super-bloom actor)
#:use-module (super-bloom common)
#:use-module (super-bloom flower)
#:use-module (super-bloom water)
#:export (<dirt-ball>
dead?))
(define-asset (dirt-ball-tileset (file (scope-datadir "images/dirt-ball.png")))
(load-tileset file 32 32))
(define-class <dirt-ball> (<actor>)
(flower #:accessor flower #:init-keyword #:flower)
(speed #:accessor speed #:init-keyword #:speed)
(dead? #:accessor dead? #:init-value #f)
(hitbox #:getter hitbox #:init-form (make-rect -8.0 -8.0 16.0 16.0))
(explosion-particles #:accessor explosion-particles #:init-keyword #:explosion-particles))
(define-method (initialize (dirt-ball <dirt-ball>) initargs)
(next-method)
(attach-to dirt-ball
(make <animated-sprite>
#:name 'sprite
#:atlas dirt-ball-tileset
#:origin (vec2 16.0 16.0)
#:animations `((default . ,(make <animation>
#:frames #(0 1)
#:frame-duration 0.3))
(up . ,(make <animation>
#:frames #(2 3)
#:frame-duration 0.3)))))
(let ((dir (direction-to dirt-ball (flower dirt-ball))))
(change-velocity dirt-ball
(* (vec2-x dir) (speed dirt-ball))
(* (vec2-y dir) (speed dirt-ball))))
(update-animation dirt-ball))
(define-method (update-animation (dirt-ball <dirt-ball>))
(let ((dy (vec2-y (velocity dirt-ball))))
(change-animation (& dirt-ball sprite) (if (> dy 0.0) 'up 'default))))
(define-method (on-splash (dirt-ball <dirt-ball>))
(set! (dead? dirt-ball) #t))
(define-method (on-collide (dirt-ball <dirt-ball>) (flower <flower>))
(damage flower 2)
(set! (dead? dirt-ball) #t))
(define-method (update (dirt-ball <dirt-ball>) _dt)
(next-method)
(when (dead? dirt-ball)
(let ((p (position dirt-ball)))
(audio-play (artifact explosion-sound))
(add-particle-emitter (particles (explosion-particles dirt-ball))
(make-particle-emitter (make-rect (vec2-x p) (vec2-y p) 0.0 0.0)
40 3))
(detach dirt-ball))))
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