From 700e0364b385dd76948462d2d19ae7617d0aa051 Mon Sep 17 00:00:00 2001
From: gashapwn <gashapwn@tildezero.lan>
Date: Mon, 5 Apr 2021 02:59:24 +0000
Subject: [PATCH] lpst.pl - get_block_cell() returns all cells being blocked by
 pieces in play

---
 lpst.pl | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 52 insertions(+), 9 deletions(-)

diff --git a/lpst.pl b/lpst.pl
index b2c02a2..a1a6183 100644
--- a/lpst.pl
+++ b/lpst.pl
@@ -376,6 +376,7 @@ sub shade_cell($$){
     $sc{$not} = $en unless (grep /^$not$/, keys(%sc));
 }
 
+# TODO rename/rethink these 3 functions
 sub shade_t($){
     my $not = shift;
     return $sc{$not} if (grep /^$not$/, keys(%sc));
@@ -574,6 +575,44 @@ sub disp_board(){
 
 # Caclulate movement
 #==================================================
+
+# TODO: rename / rethink these 4 functions
+sub gm1($){
+    my $not = shift;
+    my $pi;
+
+    $pi = cell_pi($not);
+
+    if($pi){
+	return gm2($pi);
+    }
+    return ();
+}
+sub gm2(){
+    my $pi = shift;
+    return grep {
+	$_ if ($_->{"type"} & $MOVE_ENUM) eq $MOVE_ENUM
+    } @{$MOVE{$pi}}
+}
+
+sub gb1($){
+    my $not = shift;
+    my $pi;
+
+    $pi = cell_pi($not);
+
+    if($pi){
+	return gb2($pi);
+    }
+    return ();
+}
+sub gb2($){
+    my $pi = shift;
+    return grep {
+	$_ if ($_->{"type"} & $BLOCK_ENUM) eq $BLOCK_ENUM
+    } @{$MOVE{$pi}}
+}
+
 sub not_split($$){
     my ($not, $i0) = (shift, shift);
     return (split(/$DIV/, $board{$not}))[$i0];
@@ -666,20 +705,20 @@ sub shade_mvmt($$){
     @mv1 = grep {
 	($_->{"type"} & $en) eq $_->{"type"}
     } @{$MOVE{$c1}};
-    @mv1 = find_all_mov(\@mv1, $not);
     
+    @mv1 = find_all_mov(\@mv1, $not);
     for my $mv (@mv1){
 	shade_cell($mv->[0], $mv->[1]);
     }
 }
 
-
-
-# sub get_block_cell(){
-#     map {
-# 	cell_pi($_)
-#     } keys($board);
-# }
+sub get_block_cell(){
+    return map {
+	$_->[0]
+    } map {
+	( find_all_mov([gb1($_)], $_) );
+    } keys(%board);
+}
 
 
 
@@ -708,8 +747,12 @@ my $c2 = $MG_A;
 $board{$m1} = $P1.$DIV.$c1;
 $board{$m2} = $P1.$DIV.$c2;
 
-shade_mvmt($m1, $MOVBLOCK_ENUM);
 
+for my $el (get_block_cell()){
+    printf("%s\n", $el);
+}
+
+shade_mvmt($m1, $MOVBLOCK_ENUM);
 disp_board();