offscreen clipping, start level 5

game/init.fnl

@@ -91,10 +91,22 @@
         [:drop :jaye-yx :get vm.false :transition-gord-sitting 0 :gord-dir :set vm.true]
         [:drop vm.false])])]))
 
+(vm:def :yxclip? ; yx -- f
+  [:block
+    [:lda vm.TOP :x]
+    [:cmp mapw]
+    [:bcs :clipped]
+    [:lda vm.TOPH :x]
+    [:cmp maph]
+    [:bcs :clipped]
+    [:lda 0] [:sta vm.TOP :x] [:sta vm.TOPH :x] (vm:ret)
+  :clipped
+    [:lda 0xff] [:sta vm.TOP :x] [:sta vm.TOPH :x]])
+
 (vm:word :try-move-player ; dir --
   :dup :set-player-dir ; dir
   :player-yx :get :yx+ ; yxnew
-  (vm:if-or [[:dup :touch-entity] [:dup :handle-special-move] [:dup :movable-player-flag :flag-at? :not]]
+  (vm:if-or [[:dup :yxclip?] [:dup :touch-entity] [:dup :handle-special-move] [:dup :movable-player-flag :flag-at? :not]]
     [:drop :player-yx :get])
   ; always "move" so that player can visibly change direction
   ; touch-entity can modify player-yx so we have to refetch
@@ -179,7 +191,7 @@
     )
     :quit])
 
-(util.reload :game.level4)
+(util.reload :game.level5)
 
 (prg:assemble)
 

game/level5.fnl

@@ -0,0 +1,6 @@
+(local {: deflevel : say : itile} (require :game.defs))
+(local {: ev} (require :game.entity))
+(local level (deflevel "game/map5.json"))
+(local vm level.vm)
+
+level

game/map5.json

@@ -0,0 +1 @@
+{"neut":{"y":6,"x":20},"jaye":{"y":5,"x":19},"gord-following":true,"map":"21616161228161616161616161616161616162612102E0C0C0C0C0E0C04361C0C0C0C0C0A3C0C0612161C0C0C0C0C0C0C0C022C0C0C08282C0828261416103C0C0C0C0C0C0C081C0C0C0C0C0C0C0C2C1210203C0C0C0C0C0C04361C0C0C08282838282622161616161816161616161618161616161616161216163C0C0C0C0E0C0C06143C0C0C0C0C0C063612102C0C0C0C0C0C0C0C061C0C0C0C0C0C0C0C0814161C0C0C0C0E2C0E2836101C0C0C0C0C0C0C0C1216143C0C0C082A2A2A281C0C0C043034382E26121610261610261C16102616161026161610261612121212121214121212121212121214121212121","objects":[{"x":17,"func":"rexx","linkword":"","name":"","y":11},{"x":17,"func":"rexx","linkword":"","name":"","y":8},{"x":20,"link":13,"func":"switch","linkword":"","name":"","y":9},{"x":20,"link":16,"func":"switch","linkword":"","name":"","y":4},{"x":12,"link":9,"func":"term","linkword":"","name":"","y":4},{"x":10,"func":"rexx","linkword":"","name":"","y":4},{"x":8,"link":17,"func":"switch","linkword":"","name":"","y":2},{"x":8,"link":10,"func":"term","linkword":"","name":"","y":6},{"x":8,"link":5,"func":"term","linkword":"","name":"","y":11},{"x":3,"link":8,"func":"term","linkword":"","name":"","y":11},{"x":5,"link":12,"func":"scan","linkword":"","name":"","y":12},{"x":6,"func":"door","linkword":"","name":"","y":12},{"x":6,"func":"door","linkword":"","name":"","y":7},{"x":11,"func":"door","linkword":"","name":"","y":9},{"x":11,"link":14,"func":"scan","linkword":"","name":"","y":10},{"x":13,"func":"door","linkword":"","name":"","y":7},{"x":11,"func":"door","linkword":"","name":"","y":3}]}

todo.txt

@@ -1,8 +1,8 @@
 Game:
-* clipping on screen edges
 * Neut tileset
 * level loading
 * Rexx can run over Jaye and vice versa
+* drawing queue
 
 tooling ideas:
 * REPLy buffer (Polywell?)