1 files changed, 103 insertions, 0 deletions
diff --git a/diplomacy/web/src/gui/maps/common/convoy.js b/diplomacy/web/src/gui/maps/common/convoy.js
new file mode 100644
index 0000000..c966161
--- /dev/null
+++ b/diplomacy/web/src/gui/maps/common/convoy.js
@@ -0,0 +1,103 @@
+// ==============================================================================
+// Copyright (C) 2019 - Philip Paquette, Steven Bocco
+//
+//  This program is free software: you can redistribute it and/or modify it under
+//  the terms of the GNU Affero General Public License as published by the Free
+//  Software Foundation, either version 3 of the License, or (at your option) any
+//  later version.
+//
+//  This program is distributed in the hope that it will be useful, but WITHOUT
+//  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+//  FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+//  details.
+//
+//  You should have received a copy of the GNU Affero General Public License along
+//  with this program.  If not, see <https://www.gnu.org/licenses/>.
+// ==============================================================================
+import React from "react";
+import {ARMY, centerSymbolAroundUnit, coloredStrokeWidth, getUnitCenter} from "./common";
+import {EquilateralTriangle} from "./equilateralTriangle";
+import PropTypes from "prop-types";
+
+export class Convoy extends React.Component {
+    render() {
+        const Coordinates = this.props.coordinates;
+        const SymbolSizes = this.props.symbolSizes;
+        const Colors = this.props.colors;
+        const loc = this.props.loc;
+        const src_loc = this.props.srcLoc;
+        const dest_loc = this.props.dstLoc;
+
+        const symbol = 'ConvoyTriangle';
+        let [symbol_loc_x, symbol_loc_y] = centerSymbolAroundUnit(Coordinates, SymbolSizes, src_loc, false, symbol);
+        const symbol_height = parseFloat(SymbolSizes[symbol].height);
+        const symbol_width = parseFloat(SymbolSizes[symbol].width);
+        const triangle = new EquilateralTriangle(
+            parseFloat(symbol_loc_x) + symbol_width / 2,
+            parseFloat(symbol_loc_y),
+            parseFloat(symbol_loc_x) + symbol_width,
+            parseFloat(symbol_loc_y) + symbol_height,
+            parseFloat(symbol_loc_x),
+            parseFloat(symbol_loc_y) + symbol_height
+        );
+        symbol_loc_y = '' + (parseFloat(symbol_loc_y) - symbol_height / 6);
+        const [loc_x, loc_y] = getUnitCenter(Coordinates, SymbolSizes, loc, false);
+        const [src_loc_x, src_loc_y] = getUnitCenter(Coordinates, SymbolSizes, src_loc, false);
+        let [dest_loc_x, dest_loc_y] = getUnitCenter(Coordinates, SymbolSizes, dest_loc, false);
+
+        const [src_loc_x_1, src_loc_y_1] = triangle.intersection(loc_x, loc_y);
+        const [src_loc_x_2, src_loc_y_2] = triangle.intersection(dest_loc_x, dest_loc_y);
+
+        const dest_delta_x = dest_loc_x - src_loc_x;
+        const dest_delta_y = dest_loc_y - src_loc_y;
+        const dest_vector_length = Math.sqrt(dest_delta_x * dest_delta_x + dest_delta_y * dest_delta_y);
+        const delta_dec = parseFloat(SymbolSizes[ARMY].width) / 2 + 2 * coloredStrokeWidth(SymbolSizes);
+        dest_loc_x = '' + Math.round((parseFloat(src_loc_x) + (dest_vector_length - delta_dec) / dest_vector_length * dest_delta_x) * 100.) / 100.;
+        dest_loc_y = '' + Math.round((parseFloat(src_loc_y) + (dest_vector_length - delta_dec) / dest_vector_length * dest_delta_y) * 100.) / 100.;
+
+        return (
+            <g stroke={Colors[this.props.powerName]}>
+                <line x1={loc_x}
+                      y1={loc_y}
+                      x2={src_loc_x_1}
+                      y2={src_loc_y_1}
+                      className={'shadowdash'}/>
+                <line x1={src_loc_x_2}
+                      y1={src_loc_y_2}
+                      x2={dest_loc_x}
+                      y2={dest_loc_y}
+                      className={'shadowdash'}/>
+                <line x1={loc_x}
+                      y1={loc_y}
+                      x2={src_loc_x_1}
+                      y2={src_loc_y_1}
+                      className={'convoyorder'}
+                      stroke={Colors[this.props.powerName]}/>
+                <line x1={src_loc_x_2}
+                      y1={src_loc_y_2}
+                      x2={dest_loc_x}
+                      y2={dest_loc_y}
+                      className={'convoyorder'}
+                      markerEnd={'url(#arrow)'}
+                      stroke={Colors[this.props.powerName]}/>
+                <use
+                    x={symbol_loc_x}
+                    y={symbol_loc_y}
+                    width={'' + symbol_width}
+                    height={'' + symbol_height}
+                    href={`#${symbol}`}
+                />
+            </g>
+        );
+    }
+}
+
+Convoy.propTypes = {
+    loc: PropTypes.string.isRequired,
+    srcLoc: PropTypes.string.isRequired,
+    dstLoc: PropTypes.string.isRequired,
+    powerName: PropTypes.string.isRequired,
+    coordinates: PropTypes.object.isRequired,
+    symbolSizes: PropTypes.object.isRequired,
+    colors: PropTypes.object.isRequired
+};