From afcb0d4ed194fa1453cabcf664dfea4b1587ab01 Mon Sep 17 00:00:00 2001
From: Loic Guegan <manzerbredes@mailbox.org>
Date: Wed, 11 Jan 2023 13:04:52 +0100
Subject: [PATCH] Debug arrows drawing

---
 src/game_tab/left_panel/GameTabLeftPanel.cpp  | 6 +++---
 src/game_tab/left_panel/board/BoardCanvas.cpp | 8 +++++---
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/game_tab/left_panel/GameTabLeftPanel.cpp b/src/game_tab/left_panel/GameTabLeftPanel.cpp
index c4d8764..1d6ed61 100644
--- a/src/game_tab/left_panel/GameTabLeftPanel.cpp
+++ b/src/game_tab/left_panel/GameTabLeftPanel.cpp
@@ -89,13 +89,13 @@ void GameTabLeftPanel::SetEngineEvaluation(EngineEvaluation eval){
   if(is_engine_on){
     engine_arrows.clear();
     float scale=1;
-    unsigned char color=0;
+    unsigned char alpha=190;
     for(auto const &arrow: eval.best_lines){
       std::string src=arrow.substr(0,2);
       std::string dst=arrow.substr(2,2);
-      engine_arrows.push_back({src,dst,wxColour(color,color,color),scale});
+      engine_arrows.push_back({src,dst,wxColour(6,57,112,alpha),scale});
       scale=std::max(0.1,scale-0.25);
-      color=std::min(255,color+70);
+      alpha=std::max(20,alpha-60);
     }
     eval_cp=eval.eval;
     Notify(true);
diff --git a/src/game_tab/left_panel/board/BoardCanvas.cpp b/src/game_tab/left_panel/board/BoardCanvas.cpp
index 97ca3ad..7fc9d10 100644
--- a/src/game_tab/left_panel/board/BoardCanvas.cpp
+++ b/src/game_tab/left_panel/board/BoardCanvas.cpp
@@ -667,10 +667,11 @@ void BoardCanvas::DrawLArrow(wxDC &dc, int xsrc, int ysrc, int xdst, int ydst, b
     // Compute metrics
     double tip_height=sqrt(3)/2*thickness;
     double yoffset=Y<0 ? -thickness/4 : thickness/4; // Y tail should be longer to form a right angle (corner of tail joins)
+    double xoffset=X<0 ? -thickness/4 : thickness/4; // X tail's starting point should be translated to form a right angle (corner of tail joins)
     if(X<0){tip_height=-tip_height;}
     wxPoint tip[]={wxPoint(X-tip_height,-thickness/2+Y),wxPoint(X,Y),wxPoint(X-tip_height,thickness/2+Y)};
     wxPoint tail1[]={wxPoint(-thickness/4,0),wxPoint(thickness/4,0),wxPoint(thickness/4,Y+yoffset),wxPoint(-thickness/4,Y+yoffset)};
-    wxPoint tail2[]={wxPoint(0,Y-thickness/4),wxPoint(X-tip_height,Y-thickness/4),wxPoint(X-tip_height,Y+thickness/4),wxPoint(0,Y+thickness/4)};
+    wxPoint tail2[]={wxPoint(xoffset,Y-thickness/4),wxPoint(X-tip_height,Y-thickness/4),wxPoint(X-tip_height,Y+thickness/4),wxPoint(xoffset,Y+thickness/4)};
 
     // Apply transforms
     TRANS2(tip[0]);TRANS2(tip[1]);TRANS2(tip[2]);
@@ -685,11 +686,12 @@ void BoardCanvas::DrawLArrow(wxDC &dc, int xsrc, int ysrc, int xdst, int ydst, b
   } else {
     // Compute metrics
     double tip_height=sqrt(3)/2*thickness;
-    double xoffset=X<0 ? -thickness/4 : thickness/4; // Y tail should be longer to form a right angle (corner of tail joins)
+    double xoffset=X<0 ? -thickness/4 : thickness/4; // X tail should be longer to form a right angle (corner of tail joins)
+    double yoffset=Y<0 ? -thickness/4 : thickness/4; // Y tail's starting point should be translated to form a right angle (corner of tail joins)
     if(Y<0){tip_height=-tip_height;}
     wxPoint tip[]={wxPoint(-thickness/2 + X,Y-tip_height),wxPoint(thickness/2 + X ,Y-tip_height),wxPoint(X,Y)};
     wxPoint tail1[]={wxPoint(0,-thickness/4),wxPoint(X+xoffset,-thickness/4),wxPoint(X+xoffset,thickness/4),wxPoint(0,thickness/4)};
-    wxPoint tail2[]={wxPoint(X-thickness/4,0),wxPoint(X+thickness/4,0),wxPoint(X+thickness/4,Y-tip_height),wxPoint(X-thickness/4,Y-tip_height)};
+    wxPoint tail2[]={wxPoint(X-thickness/4,yoffset),wxPoint(X+thickness/4,yoffset),wxPoint(X+thickness/4,Y-tip_height),wxPoint(X-thickness/4,Y-tip_height)};
 
     // Apply transforms
     TRANS2(tip[0]);TRANS2(tip[1]);TRANS2(tip[2]);