3315

1 files changed, 41 insertions, 1 deletions

diff --git a/html/080display.cc.html b/html/080display.cc.html
index 44613b49..e3546ae0 100644
--- a/html/080display.cc.html
+++ b/html/080display.cc.html
@@ -20,6 +20,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 .SalientComment { color: #00ffff; }
 .Identifier { color: #fcb165; }
 .Normal { color: #eeeeee; background-color: #080808; padding-bottom: 1px; }
+.PreProc { color: #800080; }
 -->
 </style>
 
@@ -38,9 +39,28 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <span class="SalientComment">//:: Display management</span>
 
 <span class="Delimiter">:(before &quot;End Globals&quot;)</span>
-<span class="Normal">int</span> Display_row = <span class="Constant">0</span><span class="Delimiter">,</span> Display_column = <span class="Constant">0</span><span class="Delimiter">;</span>
+<span class="Normal">int</span> Display_row = <span class="Constant">0</span><span class="Delimiter">;</span>
+<span class="Normal">int</span> Display_column = <span class="Constant">0</span><span class="Delimiter">;</span>
 <span class="Normal">bool</span> Autodisplay = <span class="Constant">true</span><span class="Delimiter">;</span>
 
+<span class="Delimiter">:(before &quot;End Includes&quot;)</span>
+<span class="PreProc">#define CHECK_SCREEN \</span>
+<span class="PreProc">    </span><span class="Normal">if</span><span class="PreProc"> (!tb_is_active()) </span><span class="Delimiter">{</span><span class="PreProc"> \</span>
+<span class="PreProc">      </span><span class="Normal">if</span><span class="PreProc"> (Run_tests) \</span>
+<span class="PreProc">        raise &lt;&lt; maybe(current_recipe_name()) &lt;&lt; </span><span class="Constant">&quot;tried to print to real screen before 'open-console'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="PreProc"> &lt;&lt; end()</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
+<span class="PreProc">      </span><span class="Normal">else</span><span class="PreProc"> \</span>
+<span class="PreProc">        raise &lt;&lt; maybe(current_recipe_name()) &lt;&lt; </span><span class="Constant">&quot;tried to print to real screen in a test!</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="PreProc"> &lt;&lt; end()</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
+<span class="PreProc">      </span><span class="Identifier">break</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
+<span class="PreProc">    </span><span class="Delimiter">}</span>
+<span class="PreProc">#define CHECK_CONSOLE \</span>
+<span class="PreProc">    </span><span class="Normal">if</span><span class="PreProc"> (!tb_is_active()) </span><span class="Delimiter">{</span><span class="PreProc"> \</span>
+<span class="PreProc">      </span><span class="Normal">if</span><span class="PreProc"> (Run_tests) \</span>
+<span class="PreProc">        raise &lt;&lt; maybe(current_recipe_name()) &lt;&lt; </span><span class="Constant">&quot;tried to read event from real keyboard/mouse before 'open-console'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="PreProc"> &lt;&lt; end()</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
+<span class="PreProc">      </span><span class="Normal">else</span><span class="PreProc"> \</span>
+<span class="PreProc">        raise &lt;&lt; maybe(current_recipe_name()) &lt;&lt; </span><span class="Constant">&quot;tried to read event from real keyboard/mouse in a test!</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="PreProc"> &lt;&lt; end()</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
+<span class="PreProc">      </span><span class="Identifier">break</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
+<span class="PreProc">    </span><span class="Delimiter">}</span>
+
 <span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 OPEN_CONSOLE<span class="Delimiter">,</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
@@ -90,6 +110,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> CLEAR_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   tb_clear<span class="Delimiter">();</span>
   Display_row = Display_column = <span class="Constant">0</span><span class="Delimiter">;</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -105,6 +126,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> SYNC_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   tb_sync<span class="Delimiter">();</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
@@ -119,6 +141,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> CLEAR_LINE_ON_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   <span class="Normal">int</span> width = tb_width<span class="Delimiter">();</span>
   <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> x = Display_column<span class="Delimiter">;</span> x &lt; width<span class="Delimiter">;</span> ++x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
     tb_change_cell<span class="Delimiter">(</span>x<span class="Delimiter">,</span> Display_row<span class="Delimiter">,</span> <span class="Constant">' '</span><span class="Delimiter">,</span> TB_WHITE<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">);</span>
@@ -158,6 +181,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> PRINT_CHARACTER_TO_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   <span class="Normal">int</span> h=tb_height<span class="Delimiter">(),</span> w=tb_width<span class="Delimiter">();</span>
   <span class="Normal">int</span> height = <span class="Delimiter">(</span>h &gt;= <span class="Constant">0</span><span class="Delimiter">)</span> ? h : <span class="Constant">0</span><span class="Delimiter">;</span>
   <span class="Normal">int</span> width = <span class="Delimiter">(</span>w &gt;= <span class="Constant">0</span><span class="Delimiter">)</span> ? w : <span class="Constant">0</span><span class="Delimiter">;</span>
@@ -208,6 +232,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> CURSOR_POSITION_ON_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
   products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>Display_row<span class="Delimiter">);</span>
   products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>Display_column<span class="Delimiter">);</span>
@@ -236,6 +261,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> MOVE_CURSOR_ON_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   Display_row = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
   Display_column = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
   tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
@@ -253,6 +279,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> MOVE_CURSOR_DOWN_ON_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   <span class="Normal">int</span> h=tb_height<span class="Delimiter">();</span>
   <span class="Normal">int</span> height = <span class="Delimiter">(</span>h &gt;= <span class="Constant">0</span><span class="Delimiter">)</span> ? h : <span class="Constant">0</span><span class="Delimiter">;</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>Display_row &lt; height-<span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -273,6 +300,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> MOVE_CURSOR_UP_ON_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>Display_row &gt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
     --Display_row<span class="Delimiter">;</span>
     tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
@@ -291,6 +319,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> MOVE_CURSOR_RIGHT_ON_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   <span class="Normal">int</span> w=tb_width<span class="Delimiter">();</span>
   <span class="Normal">int</span> width = <span class="Delimiter">(</span>w &gt;= <span class="Constant">0</span><span class="Delimiter">)</span> ? w : <span class="Constant">0</span><span class="Delimiter">;</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>Display_column &lt; width-<span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -311,6 +340,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> MOVE_CURSOR_LEFT_ON_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>Display_column &gt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
     --Display_column<span class="Delimiter">;</span>
     tb_set_cursor<span class="Delimiter">(</span>Display_column<span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
@@ -343,6 +373,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> DISPLAY_WIDTH: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
   products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>tb_width<span class="Delimiter">());</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -358,6 +389,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> DISPLAY_HEIGHT: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
   products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>tb_height<span class="Delimiter">());</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -373,6 +405,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> HIDE_CURSOR_ON_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   tb_set_cursor<span class="Delimiter">(</span>TB_HIDE_CURSOR<span class="Delimiter">,</span> TB_HIDE_CURSOR<span class="Delimiter">);</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
@@ -387,6 +420,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> SHOW_CURSOR_ON_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   tb_set_cursor<span class="Delimiter">(</span>Display_row<span class="Delimiter">,</span> Display_column<span class="Delimiter">);</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
@@ -401,6 +435,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> HIDE_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   Autodisplay = <span class="Constant">false</span><span class="Delimiter">;</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
@@ -415,6 +450,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> SHOW_DISPLAY: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   Autodisplay = <span class="Constant">true</span><span class="Delimiter">;</span>
   tb_present<span class="Delimiter">();</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -432,6 +468,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> WAIT_FOR_SOME_INTERACTION: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   tb_event event<span class="Delimiter">;</span>
   tb_poll_event<span class="Delimiter">(</span>&amp;event<span class="Delimiter">);</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -447,6 +484,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> CHECK_FOR_INTERACTION: <span class="Delimiter">{</span>
+  CHECK_CONSOLE<span class="Delimiter">;</span>
   products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>  <span class="Comment">// result and status</span>
   tb_event event<span class="Delimiter">;</span>
   <span class="Normal">int</span> event_type = tb_peek_event<span class="Delimiter">(</span>&amp;event<span class="Delimiter">,</span> <span class="Constant">5</span><span class="Comment">/*</span><span class="Comment">ms</span><span class="Comment">*/</span><span class="Delimiter">);</span>
@@ -517,6 +555,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> INTERACTIONS_LEFT: <span class="Delimiter">{</span>
+  CHECK_CONSOLE<span class="Delimiter">;</span>
   products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
   products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>tb_event_ready<span class="Delimiter">());</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -534,6 +573,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> CLEAR_DISPLAY_FROM: <span class="Delimiter">{</span>
+  CHECK_SCREEN<span class="Delimiter">;</span>
   <span class="Comment">// todo: error checking</span>
   <span class="Normal">int</span> row = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
   <span class="Normal">int</span> column = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>