From da44ebb09be137e3066278fb5b1bd1fd0b43fd10 Mon Sep 17 00:00:00 2001
From: DeaDDooMER <deaddoomer@deadsoftware.ru>
Date: Wed, 8 Mar 2017 13:47:21 +0300
Subject: [PATCH 1/1] Fix fall beyond of map bound

---
 src/phy.pas | 61 +++++++++++++++++++++++++++++++++--------------------
 1 file changed, 38 insertions(+), 23 deletions(-)

diff --git a/src/phy.pas b/src/phy.pas
index 648ca34..431f180 100644
--- a/src/phy.pas
+++ b/src/phy.pas
@@ -21,7 +21,7 @@ interface
  function canSeeObj(x1, y1, x2, y2:integer):boolean;
 
 implementation
- uses items_store, maps;
+ uses items_store, maps, vars;
  const
   MAX_VELY=32;
   TILE_SIZE=16;
@@ -46,31 +46,46 @@ function CollTwoObj(x1,y1,w1,h1,x2,y2,w2,h2:integer):boolean;
    jmp:=_jmp;
   end;
 
+ function mapBoundCheck(x, y : Integer) : Boolean;
+   begin
+     mapBoundCheck := (x < 0) or (x > MAP_W * TILE_SIZE);
+   end;
+
+ function onMapObjectCheck(x, y, w, h : Integer) : Boolean;
+   begin
+     onMapObjectCheck := mapBoundCheck(x, y) or mapBoundCheck(x + w, y + h);
+   end;
+
  function isSolid(x, y, velx, vely:integer):boolean;
-  begin
-   if getBlockColl(getMap(x, y))<>0 then
-    isSolid:=true;
-  end;
+   begin
+     isSolid := getBlockColl(getMap(x, y)) <> 0;
+   end;
 
  function mapColl(x, y, w, h, velx, vely:integer):boolean;
-  var
-   i, j:integer;
-   minx, miny, maxx, maxy:integer;
-  begin
-   minx:=x div TILE_SIZE;
-   miny:=y div TILE_SIZE;
-   maxx:=(x+w-1) div TILE_SIZE;
-   maxy:=(y+h-1) div TILE_SIZE;
-   for i:=minx to maxx do
-   for j:=miny to maxy do
-    begin
-     if isSolid(i, j, velx, vely) then
-      begin
-       mapColl:=true;
-       exit;
-      end;
-    end;
- end;
+   var
+    i, j:integer;
+    minx, miny, maxx, maxy:integer;
+   begin
+     if onMapObjectCheck(x, y, w, h) then
+       begin
+         mapColl := true;
+         exit;
+       end;
+
+     minx:=x div TILE_SIZE;
+     miny:=y div TILE_SIZE;
+     maxx:=(x+w-1) div TILE_SIZE;
+     maxy:=(y+h-1) div TILE_SIZE;
+     for i:=minx to maxx do
+     for j:=miny to maxy do
+       begin
+         if isSolid(i, j, velx, vely) then
+           begin
+             mapColl:=true;
+             exit;
+           end;
+       end;
+  end;
 
  function canSeeObj(x1, y1, x2, y2:integer):boolean;
   var
-- 
2.29.2