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Board.qml
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Board.qml
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import QtQuick 2.9
import QtQuick.Layouts 1.3
import "chessutil.js" as ChessUtil
import "board.js" as BoardJS
Item
{
id: id_board
//------------------------------------------------------------------------------
property bool flip: false
property var magicColors: ["#cfd6e5", "#4c6082"]
property var transfVelocity: 20 // sq/s
function compPly(a_info)
{
makePly(a_info);
}
function userPly(a_legal)
{
setLegalPlies(a_legal);
m_dragEnabled = true;
}
signal compPlyMade(variant a_info);
signal userPlyMade(variant a_info);
function fromLayout(a)
{
for (var i = 0; i < id_repeater.count; i++)
{
var l_field = id_repeater.itemAt(i);
var l_coords = m_data.indexToCoords(l_field.magicIndex);
l_field.magicSetValue(a.item(l_coords));
}
}
function stop()
{
id_timer1.stop(); id_timer2.stop();
m_data.reset();
id_placeholders.magicHide();
id_repeater.magicSetMask(false);
}
//------------------------------------------------------------------------------
GridLayout
{
id: id_layout
columns: 8
rows: 8
anchors.fill: parent
rowSpacing: 0
columnSpacing: 0
Repeater
{
id: id_repeater
function magicSetMask(a) { for (var i = 0; i < count; i++) itemAt(i).magicSetMask(a); }
model: 64
Field
{
Layout.fillWidth: true
Layout.fillHeight: true
magicIndex: index
magicColor: { return magicColors[(Math.floor(index / 8) % 2 + index % 2 + flip) % 2]; }
}
}
}
Repeater
{
id: id_placeholders
function magicHide() { for (var i = 0; i < count; i++) itemAt(i).visible = false; }
model: BoardJS.s_imageFilepaths
Placeholder
{
visible: false
filepath: modelData
}
}
MouseArea
{
anchors.fill: parent
onPressed:
{
m_data.mousePressed(Qt.point(mouse.x, mouse.y));
}
onPositionChanged:
{
m_data.mousePosChanged(Qt.point(mouse.x, mouse.y));
}
onReleased:
{
m_data.mouseReleased(Qt.point(mouse.x, mouse.y));
}
}
PromoPanel
{
id: id_promoPanel
flip: id_board.flip
function activateExt(a_field, a_callable) { m_callable = a_callable; magicActivate(a_field); }
visible: false
width: id_layout.width / id_layout.columns
fieldHeight: id_layout.height / id_layout.rows
anchors.top: parent.top
anchors.bottom: parent.bottom
property var m_callable
onPieceSelected: { m_callable(a); }
}
Timer
{
id: id_timer1
function magicStart(a_callable, a_arg) { m_callable = a_callable; m_arg = a_arg; start(); }
interval: 30; repeat: true
onTriggered: m_callable(m_arg)
property var m_callable
property var m_arg
}
SingleShotTimer { id: id_timer2 }
//------------------------------------------------------------------------------
onFlipChanged:
{
m_flipMatrix.m22 = flip ? -1 : 1; m_flipMatrix.m24 = flip ? 7 : 0;
for (var i = 0; i < 4; i++)
for (var j = 0; j < 8; j++)
{
var o = fieldByCoords(new ChessUtil.Coords(j, i));
var a = fieldByCoords(new ChessUtil.Coords(j, 7 - i));
var v = o.magicValue(); o.magicSetValue(a.magicValue()); a.magicSetValue(v);
}
}
//------------------------------------------------------------------------------
property var m_data: new BoardJS.BoardData(this)
property var m_flipMatrix: Qt.matrix4x4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)
property var m_dragEnabled: false
property var m_drag
property var m_placeholder
property var m_transfFrom
property var m_transfTo
property var m_transfTimeFix
property var m_transfMatrix
property var m_transfFunc
property var m_plyInfo
property var m_makePlyState
//------------------------------------------------------------------------------
function fieldAt(a) { return id_layout.childAt(a.x, a.y); }
function fieldByCoords(a) { return id_repeater.itemAt(m_data.coordsToIndex(a)); }
function placeholderByValue(a) { return id_placeholders.itemAt(BoardJS.pawnOrPieceIndex(a)); }
//------------------------------------------------------------------------------
function transfOnTimer(a)
{
if (m_transfTo == null) return;
var l_timeFix = new Date().getTime();
var l_elapsed = (l_timeFix - m_transfTimeFix) / 1000;
var l_path = transfVelocity * l_elapsed;
var h = m_transfTo.c - m_transfFrom.c, v = m_transfTo.r - m_transfFrom.r;
var l = Math.sqrt(h * h + v * v);
if (l > l_path)
{
var l_relPos = m_flipMatrix.times(m_transfMatrix.times(Qt.vector4d(l_path, 0, 0, 1)));
var l_size = Qt.size(id_layout.width / id_layout.columns, id_layout.height / id_layout.rows);
var l_center = Qt.point(l_size.width * (0.5 + l_relPos.x), l_size.height * (0.5 + l_relPos.y));
m_placeholder.magicSetCenter(l_center);
return;
}
id_timer1.stop();
m_placeholder.visible = false;
var l_source = fieldByCoords(m_transfFrom), l_target = fieldByCoords(m_transfTo);
l_target.magicSetValue(l_source.magicValue()); l_source.magicSetValue("0");
m_transfTo = null;
m_transfFunc();
}
function transfer(a_from, a_to)
{
m_transfFrom = a_from; m_transfTo = a_to;
var l_source = fieldByCoords(m_transfFrom);
m_placeholder = placeholderByValue(l_source.magicValue());
m_placeholder.magicSetSize(l_source.magicSize());
m_placeholder.magicSetCenter(l_source.magicCenter());
var h = a_to.c - a_from.c, v = a_to.r - a_from.r, l = Math.sqrt(h * h + v * v);
m_transfMatrix = Qt.matrix4x4(h / l, -v / l, 0, a_from.c, v / l, h / l, 0, a_from.r, 0, 0, 1, 0, 0, 0, 0, 1);
m_placeholder.visible = true; l_source.magicSetMask(true);
m_transfTimeFix = new Date().getTime();
id_timer1.magicStart(transfOnTimer, 0);
}
//------------------------------------------------------------------------------
function isDraggable(a_pos)
{
var l_field = fieldAt(a_pos);
return l_field != null && BoardJS.pawnOrPieceIndex(l_field.magicValue()) >= 0;
}
function dragStarted(a_pos)
{
var l_field = fieldAt(a_pos);
m_drag = m_data.indexToCoords(l_field.magicIndex);
m_placeholder = placeholderByValue(l_field.magicValue());
m_placeholder.magicSetSize(l_field.magicSize());
m_placeholder.magicSetCenter(a_pos);
m_placeholder.visible = true; l_field.magicSetMask(true);
}
function dragging(a_pos)
{
m_placeholder.magicSetCenter(a_pos);
}
function drop(a_pos)
{
var l_source = fieldByCoords(m_drag);
var l_target = fieldAt(a_pos);
if (l_target != null && l_source != l_target)
{
var l_drop = m_data.indexToCoords(l_target.magicIndex);
var l_info = m_data.findPly(m_drag, l_drop);
if (l_info != null)
{
l_source.magicSetMask(false); m_placeholder.visible = false;
finishPly(l_info);
return;
}
}
l_source.magicSetMask(false); m_placeholder.visible = false;
}
//------------------------------------------------------------------------------
function makePly(a_info)
{
m_plyInfo = a_info;
m_makePlyState = 0;
m_transfFunc = makePlyFunc;
makePlyFunc();
}
function makePlyFunc()
{
if (m_makePlyState < m_plyInfo.transp.length)
{
var l_pair = m_plyInfo.transp[m_makePlyState];
if (l_pair[1].isValid()) { transfer(l_pair[0], l_pair[1]); m_makePlyState++; }
else { fieldByCoords(l_pair[0]).magicSetValue("0"); m_makePlyState++; makePlyFunc(); }
return;
}
if (m_plyInfo.promotion != "")
{
var l_pair = m_plyInfo.transp[0];
fieldByCoords(l_pair[1]).magicSetValue(m_plyInfo.promotion);
}
id_timer2.singleShot(emitCompPly, m_plyInfo);
}
function emitCompPly(a)
{
compPlyMade(a);
}
//------------------------------------------------------------------------------
function finishPly(a_info)
{
m_plyInfo = a_info;
m_dragEnabled = false;
var t = a_info.transp[0];
var l_source = fieldByCoords(t[0]);
var l_target = fieldByCoords(t[1]);
l_target.magicSetValue(l_source.magicValue());
l_source.magicSetValue("0");
if (a_info.promotion != "")
{
id_promoPanel.activateExt(l_target, finishPlyFunc);
return;
}
if (a_info.transp.length < 2)
{
id_timer2.singleShot(emitUserPly, m_plyInfo);
return;
}
var t = a_info.transp[1];
if (!t[1].isValid())
{
fieldByCoords(t[0]).magicSetValue("0");
id_timer2.singleShot(emitUserPly, m_plyInfo);
return;
}
l_source = fieldByCoords(t[0]);
l_target = fieldByCoords(t[1]);
l_target.magicSetValue(l_source.magicValue());
l_source.magicSetValue("0");
id_timer2.singleShot(emitUserPly, m_plyInfo);
}
function finishPlyFunc(a)
{
var t = m_plyInfo.transp[0];
var l_info = m_data.findPly(t[0], t[1], a.toLowerCase());
t = l_info.transp[0];
var l_target = fieldByCoords(t[1]);
l_target.magicSetValue(a);
id_timer2.singleShot(emitUserPly, l_info);
}
function emitUserPly(a)
{
userPlyMade(a);
}
//------------------------------------------------------------------------------
function setLegalPlies(a) { m_data.m_legalPlies = a; }
}