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-rw-r--r--src/game_tab/left_panel/board/BoardCanvas.cpp100
-rw-r--r--src/game_tab/left_panel/board/BoardCanvas.hpp3
2 files changed, 96 insertions, 7 deletions
diff --git a/src/game_tab/left_panel/board/BoardCanvas.cpp b/src/game_tab/left_panel/board/BoardCanvas.cpp
index 119c270..eabc615 100644
--- a/src/game_tab/left_panel/board/BoardCanvas.cpp
+++ b/src/game_tab/left_panel/board/BoardCanvas.cpp
@@ -3,8 +3,10 @@
#define TRANS(PT) { \
wxPoint2DDouble tmp((PT).x,(PT).y); \
tmp=rot_m.TransformPoint(tmp); \
-tmp=trans_m.TransformPoint(tmp); \
-(PT).x=tmp.m_x;(PT).y=tmp.m_y;}
+(PT).x=tmp.m_x+xsrc;(PT).y=tmp.m_y+ysrc;}
+
+#define TRANS2(PT) { \
+(PT).x+=xsrc;(PT).y+=ysrc;}
wxDEFINE_EVENT(PLAY_MOVE_EVENT, wxCommandEvent);
@@ -140,6 +142,7 @@ void BoardCanvas::SetupBoard(const GameState &new_gs) {
gs.black_time=new_gs.black_time;
gs.white_time=new_gs.white_time;
gs.squares_hl=new_gs.squares_hl;
+ gs.arrows=new_gs.arrows;
Refresh();
}
@@ -155,7 +158,7 @@ void BoardCanvas::Animate(const GameState &new_gs, const std::string &src, const
// Now compute piece start position and translation vector
std::uint32_t centrer_offset = (square_width - piece_width) / 2;
- if (!black_side) {
+ if (!black_side) {
prank = 7 - prank;
pfile = 7 - pfile;
}
@@ -393,6 +396,35 @@ void BoardCanvas::DrawBoard(wxDC &dc) {
dc.DrawText(time, wxPoint(boardX + square_width * 8 - width,
boardY + square_width * 8 + numbers_size.y*2));
}
+ // Draw arrows
+ for(const std::string arrow: gs.arrows){
+ std::uint8_t sfile = arrow[0]-'a';
+ std::uint8_t srank = arrow[1]-'1';
+ std::uint8_t dfile = arrow[2]-'a';
+ std::uint8_t drank = arrow[3]-'1';
+ if (!black_side) {
+ srank = 7 - srank;
+ sfile = 7 - sfile;
+ drank = 7 - drank;
+ dfile = 7 - dfile;
+ }
+ std::uint32_t sx = boardX + (7 - sfile) * square_width + square_width/2;
+ std::uint32_t sy = boardY + srank * square_width + square_width/2;
+ std::uint32_t dx = boardX + (7 - dfile) * square_width + square_width/2;
+ std::uint32_t dy = boardY + drank * square_width + square_width/2;
+
+ if(((abs(drank-srank) == 2) && (abs(dfile-sfile) == 1))||
+ ((abs(drank-srank) == 1) && (abs(dfile-sfile) == 2))){
+ if(abs(drank-srank) == 1){
+ DrawLArrow(dc,sx,sy,dx,dy);
+ }
+ else {
+ DrawLArrow(dc,sx,sy,dx,dy,true);
+ }
+ } else {
+ DrawArrow(dc,sx,sy,dx,dy);
+ }
+ }
}
void BoardCanvas::MouseEvent(wxMouseEvent &event) {
@@ -472,7 +504,7 @@ void BoardCanvas::SetClockTime(short hours, short min, short sec,
void BoardCanvas::DrawArrow(wxDC &dc, int xsrc, int ysrc, int xdst, int ydst){
// Compute arrow length and angle
wxPoint vect(xdst-xsrc,ydst-ysrc);
- double length=sqrt(pow(vect.x,2)+pow(vect.y,2));
+ double length=ceil(sqrt(pow(vect.x,2)+pow(vect.y,2)));
double angle=acos(vect.x/length);
// Compute metrics
@@ -481,9 +513,8 @@ void BoardCanvas::DrawArrow(wxDC &dc, int xsrc, int ysrc, int xdst, int ydst){
std::uint32_t tail_length=length-tip_height;
// Setup transform matrix
- wxAffineMatrix2D rot_m,trans_m;
- rot_m.Rotate(angle);
- trans_m.Translate(xsrc,ysrc);
+ wxAffineMatrix2D rot_m;
+ rot_m.Rotate(-angle);
// Init polygons
wxPoint tip[]={wxPoint(tail_length,-thickness/2),wxPoint(tail_length,thickness/2),wxPoint(tail_length+tip_height,0)};
@@ -499,3 +530,58 @@ void BoardCanvas::DrawArrow(wxDC &dc, int xsrc, int ysrc, int xdst, int ydst){
dc.DrawPolygon(3,tip);
dc.DrawPolygon(4,tail);
}
+
+void BoardCanvas::DrawLArrow(wxDC &dc, int xsrc, int ysrc, int xdst, int ydst, bool flip){
+ double X=xdst-xsrc;
+ double Y=ydst-ysrc;
+
+ // Check if L arrows are required
+ if(X==0 || Y==0){
+ DrawArrow(dc, xsrc, ysrc, xdst, ydst);
+ return;
+ }
+
+ if(flip){
+ // Compute metrics
+ std::uint8_t thickness=50;
+ 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)
+ 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)};
+
+ // Apply transforms
+ TRANS2(tip[0]);TRANS2(tip[1]);TRANS2(tip[2]);
+ TRANS2(tail1[0]);TRANS2(tail1[1]);TRANS2(tail1[2]);TRANS2(tail1[3]);
+ TRANS2(tail2[0]);TRANS2(tail2[1]);TRANS2(tail2[2]);TRANS2(tail2[3]);
+
+ // Draw
+ dc.SetPen(wxNullPen);
+ dc.SetBrush(wxColour(255,0,0));
+ dc.DrawPolygon(4,tail1);
+ dc.DrawPolygon(4,tail2);
+ dc.DrawPolygon(3,tip);
+ } else {
+ // Compute metrics
+ std::uint8_t thickness=50;
+ 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)
+ 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)};
+
+ // Apply transforms
+ TRANS2(tip[0]);TRANS2(tip[1]);TRANS2(tip[2]);
+ TRANS2(tail1[0]);TRANS2(tail1[1]);TRANS2(tail1[2]);TRANS2(tail1[3]);
+ TRANS2(tail2[0]);TRANS2(tail2[1]);TRANS2(tail2[2]);TRANS2(tail2[3]);
+
+ // Draw
+ dc.SetPen(wxNullPen);
+ dc.SetBrush(wxColour(255,0,0));
+ dc.DrawPolygon(4,tail1);
+ dc.DrawPolygon(4,tail2);
+ dc.DrawPolygon(3,tip);
+ }
+}
diff --git a/src/game_tab/left_panel/board/BoardCanvas.hpp b/src/game_tab/left_panel/board/BoardCanvas.hpp
index ddab72b..946711f 100644
--- a/src/game_tab/left_panel/board/BoardCanvas.hpp
+++ b/src/game_tab/left_panel/board/BoardCanvas.hpp
@@ -64,6 +64,7 @@ typedef struct GameState {
std::string board;
std::map<char, std::uint8_t> captures;
std::vector<std::string> squares_hl;
+ std::vector<std::string> arrows;
bool is_black_turn;
bool mat_black;
bool mat_white;
@@ -93,6 +94,8 @@ class BoardCanvas : public wxPanel {
/// @brief Draw an arrow from a source point to a destination point on DC
void DrawArrow(wxDC &dc, int xsrc, int ysrc, int xdst, int ydst);
+ /// @brief Draw an arrow with a L shape (such as knight moves)
+ void DrawLArrow(wxDC &dc, int xsrc, int ysrc, int xdst, int ydst, bool flip=false);
public:
BoardCanvas(wxFrame *parent);
generated by cgit v1.2.3 (git 2.46.0) at 2026-04-16 07:04:31 +0000