From 2c7900384f55caa400e800b07d85b89995d04690 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Sun, 15 Jul 2018 22:09:22 +0200
Subject: Revamp motion + add support for actions.

---
 scenes/game.scm | 62 ++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 37 insertions(+), 25 deletions(-)

(limited to 'scenes')

diff --git a/scenes/game.scm b/scenes/game.scm
index d2c820e..1ad4232 100644
--- a/scenes/game.scm
+++ b/scenes/game.scm
@@ -236,34 +236,46 @@
       (unless (null? released)
         (walk player released 'stop)))
 
-    ;; React to current key presses
-    (let ((active (fold (lambda (direction acc)
-                          (if (key-pressed? direction)
-                              (cons direction acc)
-                              acc))
-                        '()
-                        '(left right up down))))
-      (if (null? active)
-          (walk player '(idle))
-          (walk player active))
-      (set! (previous-key-presses player) active))
-
-    ;; Only move when the new position does not result in a collision.
+    (if (talking? player)
+        ;; Stop conversation on ESC.
+        (when (key-pressed? 'escape)
+          (stop-talking player))
+
+        ;; React to current key presses if there is no current dialogue.
+        (let ((active (fold (lambda (direction acc)
+                              (if (key-pressed? direction)
+                                  (cons direction acc)
+                                  acc))
+                            '()
+                            '(left right up down))))
+          (if (null? active)
+              (walk player '(idle))
+              (walk player active))
+          (set! (previous-key-presses player) active)))
+
     (let* ((pos (position player))
            (vel (velocity player)))
       (vec2-add! pos vel)
-      (when (collides? player game #:layer "collision")
-        (vec2-sub! pos vel))
-
-      ;; TODO: express this on the map instead?
-      ;; (when (> (vec2-x pos) 294.0)
-      ;;   (set-vec2-x! pos 294.0))
-      ;; (when (< (vec2-x pos) -6.0)
-      ;;   (set-vec2-x! pos -6.0))
-      ;; (when (> (vec2-y pos) (- %height 32.0))
-      ;;   (set-vec2-y! pos (- %height 32.0)))
-      ;; (when (< (vec2-y pos) 0.0)
-      ;;   (set-vec2-y! pos 0.0))
+      (and=> (collides? player game #:layer "collision")
+             (lambda (obj)
+               (match (map-object-type obj)
+                 ;; Reset when the new position is invalid.
+                 ('obstacle
+                  (vec2-sub! pos vel))
+                 ('action
+                  (when (key-pressed? 'space)
+                    (match (map-object-name obj)
+                      ("enter-house"
+                       (teleport player 560.0 1800.0)
+                       ;; TODO: change music?
+                       (pause-music))
+                      ("exit-house"
+                       (teleport player 620.0 1100.0)
+                       (resume-music))
+                      ("talk-to-reaper"
+                       (talk player (child-ref game 'reaper)))
+                      (_ #t))))
+                 (_ #t))))
 
       ;; Keep the player in the centre
       (move-to game
-- 
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