1 files changed, 81 insertions, 0 deletions
diff --git a/super-bloom/dirt-ball.scm b/super-bloom/dirt-ball.scm
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+++ b/super-bloom/dirt-ball.scm
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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>))
+
+(define-asset (dirt-ball-tileset (file (scope-datadir "assets/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 5)
+  (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))))