1 files changed, 83 insertions, 0 deletions
diff --git a/diplomacy/web/src/gui/maps/common/common.js b/diplomacy/web/src/gui/maps/common/common.js
new file mode 100644
index 0000000..750f786
--- /dev/null
+++ b/diplomacy/web/src/gui/maps/common/common.js
@@ -0,0 +1,83 @@
+// ==============================================================================
+// 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/>.
+// ==============================================================================
+
+export const ARMY = 'Army';
+export const FLEET = 'Fleet';
+
+export function offset(floatString, offset) {
+    return "" + (parseFloat(floatString) + offset);
+}
+
+export function setInfluence(classes, mapData, loc, power_name) {
+    const province = mapData.getProvince(loc);
+    if (!province)
+        throw new Error(`Unable to find province ${loc}`);
+    if (!['LAND', 'COAST'].includes(province.type))
+        return;
+    const id = province.getID(classes);
+    if (!id)
+        throw new Error(`Unable to find SVG path for loc ${id}`);
+    classes[id] = power_name ? power_name.toLowerCase() : 'nopower';
+}
+
+export function getClickedID(event) {
+    let node = event.target;
+    if (!node.id && node.parentNode.id && node.parentNode.tagName === 'g')
+        node = node.parentNode;
+    let id = node.id;
+    return id ? id.substr(0, 3) : null;
+}
+
+export function parseLocation(txt) {
+    if (txt.length > 2 && txt[1] === ' ' && ['A', 'F'].includes(txt[0]))
+        return txt.substr(2);
+    return txt;
+}
+
+export function centerSymbolAroundUnit(coordinates, symbolSizes, loc, isDislodged, symbol) {
+    const key = isDislodged ? 'disl' : 'unit';
+    const unitKey = ARMY;
+    const [unit_x, unit_y] = coordinates[loc][key];
+    const unit_height = symbolSizes[unitKey].height;
+    const unit_width = symbolSizes[unitKey].width;
+    const symbol_height = symbolSizes[symbol].height;
+    const symbol_width = symbolSizes[symbol].width;
+    return [
+        `${(parseFloat(unit_x) + parseFloat(unit_width) / 2 - parseFloat(symbol_width) / 2)}`,
+        `${(parseFloat(unit_y) + parseFloat(unit_height) / 2 - parseFloat(symbol_height) / 2)}`
+    ];
+}
+
+export function getUnitCenter(coordinates, symbolSizes, loc, isDislodged) {
+    const key = isDislodged ? 'disl' : 'unit';
+    const unitKey = ARMY;
+    const [unit_x, unit_y] = coordinates[loc][key];
+    const unit_height = symbolSizes[unitKey].height;
+    const unit_width = symbolSizes[unitKey].width;
+    return [
+        `${parseFloat(unit_x) + parseFloat(unit_width) / 2}`,
+        `${parseFloat(unit_y) + parseFloat(unit_height) / 2}`
+    ];
+}
+
+export function plainStrokeWidth(symbolSizes) {
+    return parseFloat(symbolSizes.Stroke.height);
+}
+
+export function coloredStrokeWidth(symbolSizes) {
+    return parseFloat(symbolSizes.Stroke.width);
+}