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Fog.js
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const POLYGON_CLOSE_DISTANCE = 15;
function roundRect(ctx, x, y, width, height, radius, fill, stroke) {
if (typeof stroke == "undefined" ) {
stroke = true;
}
if (typeof radius === "undefined") {
radius = 5;
}
ctx.beginPath();
ctx.moveTo(x + radius, y);
ctx.lineTo(x + width - radius, y);
ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
ctx.lineTo(x + width, y + height - radius);
ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
ctx.lineTo(x + radius, y + height);
ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
ctx.lineTo(x, y + radius);
ctx.quadraticCurveTo(x, y, x + radius, y);
ctx.closePath();
if (stroke) {
ctx.stroke();
}
if (fill) {
ctx.fill();
}
}
/**
* Class to manage measure waypoints
*/
class WaypointManagerClass {
constructor(){
this.canvas=undefined;
this.ctx=undefined;
this.numWaypoints = 0;
this.coords = [];
this.currentWaypointIndex = 0;
this.mouseDownCoords = { mousex: undefined, mousey: undefined };
this.timeout = undefined;
}
// Set canvas and further set context
setCanvas(canvas) {
this.canvas = canvas;
this.ctx = canvas.getContext("2d");
}
// Are we in the middle of measuring?
isMeasuring() {
return this.numWaypoints != 0;
}
// Store a waypoint in the array
storeWaypoint(index, startX, startY, endX, endY) {
// Check if we have this waypoint in our array, if not then increment how many waypoints we have
if (typeof this.coords[index] === 'undefined') {
this.numWaypoints++;
}
// If this is the first segment we store the values as passed in
if (this.numWaypoints == 1) {
this.coords[index] = { startX: startX, startY: startY, endX: endX, endY: endY, distance: 0 };
}
else {
// If this is NOT the first, then we stitch the segments together by setting the start of this one to the end of the previous one
this.coords[index] = { startX: this.coords[index - 1].endX, startY: this.coords[index - 1].endY, endX: endX, endY: endY, distance: 0 };
}
}
// Draw a nice circle
drawBobble(x, y, radius) {
if(radius == undefined) {
radius = 5;
}
this.ctx.beginPath();
this.ctx.arc(x, y, radius, 0, 2 * Math.PI, false);
this.ctx.lineWidth = 5;
this.ctx.strokeStyle = "black";
this.ctx.stroke();
this.ctx.fillStyle = "rgba(255, 255, 255, 0.6)";
this.ctx.fill();
}
// Increment the current index into the array of waypoints, and draw a small indicator
checkNewWaypoint(mousex, mousey) {
if (this.mouseDownCoords.mousex == mousex && this.mouseDownCoords.mousey == mousey) {
//console.log("Incrementing waypoint");
this.currentWaypointIndex++;
// Draw an indicator for cosmetic niceness
var snapCoords = this.getSnapPointCoords(mousex, mousey);
this.drawBobble(snapCoords.x, snapCoords.y, 20);
}
}
// Track mouse moving
registerMouseMove(mousex, mousey) {
this.mouseDownCoords.mousex = mousex;
this.mouseDownCoords.mousey = mousey;
}
// On mouse up, clear out the waypoints
clearWaypoints() {
this.numWaypoints = 0;
this.coords = [];
this.currentWaypointIndex = 0;
this.mouseDownCoords = { mousex: undefined, mousey: undefined };
clearTimeout(this.timeout);
this.timeout = undefined;
}
// Helper function to convert mouse coordinates to 'snap' or 'centre of current grid cell' coordinates
getSnapPointCoords(x, y) {
x -= window.CURRENT_SCENE_DATA.offsetx;
y -= window.CURRENT_SCENE_DATA.offsety;
var gridSize = window.CURRENT_SCENE_DATA.hpps;
var currGridX = Math.floor(x / gridSize);
var currGridY = Math.floor(y / gridSize);
var snapPointXStart = (currGridX * gridSize) + (gridSize / 2);
var snapPointYStart = (currGridY * gridSize) + (gridSize / 2);
// Add in scene offset
snapPointXStart += window.window.CURRENT_SCENE_DATA.offsetx;
snapPointYStart += window.window.CURRENT_SCENE_DATA.offsety;
return { x: snapPointXStart, y: snapPointYStart }
}
// Draw the waypoints, note that we sum up the cumulative distance, midlineLabels is true for token drag
// as otherwise the token sits on the measurement label
draw(midlineLabels) {
var cumulativeDistance = 0
for (var i = 0; i < this.coords.length; i++) {
// We do the beginPath here because otherwise the lines on subsequent waypoints get
// drawn over the labels...
this.ctx.beginPath();
this.drawWaypointSegment(this.coords[i], cumulativeDistance, midlineLabels);
cumulativeDistance += this.coords[i].distance;
}
}
// Draw a waypoint segment with all the lines and labels etc.
drawWaypointSegment(coord, cumulativeDistance, midlineLabels) {
// Snap to centre of current grid square
var gridSize = window.CURRENT_SCENE_DATA.hpps;
var snapCoords = this.getSnapPointCoords(coord.startX, coord.startY);
var snapPointXStart = snapCoords.x;
var snapPointYStart = snapCoords.y;
this.ctx.moveTo(snapPointXStart, snapPointYStart);
snapCoords = this.getSnapPointCoords(coord.endX, coord.endY);
var snapPointXEnd = snapCoords.x;
var snapPointYEnd = snapCoords.y;
// In future we may support other units(?), defaulting to 'ft' for feet
var unitSymbol = "ft";
// Calculate the distance and set into the waypoint object
var distance = Math.max(Math.abs(snapPointXStart - snapPointXEnd), Math.abs(snapPointYStart - snapPointYEnd));
distance = Math.round(distance / gridSize);
distance = distance * window.CURRENT_SCENE_DATA.fpsq;
coord.distance = distance;
var textX = 0;
var textY = 0;
var margin = 2;
var heightOffset = 30;
var slopeModifier = 0;
// Setup text metrics
this.ctx.font = "30px Arial";
var text = "" + (distance + cumulativeDistance) + unitSymbol;
var textMetrics = this.ctx.measureText(text);
// Calculate our positions and dmensions based on if we are measuring (midlineLabels == false) or
// token dragging (midlineLabels == true)
var contrastRect = { x: 0, y: 0, width: 0, height: 0 }
var textRect = { x: 0, y: 0, width: 0, height: 0 }
if (midlineLabels === true) {
// Calculate our coords and dimensions
textX = (snapPointXStart + snapPointXEnd) / 2;
textY = (snapPointYStart + snapPointYEnd) / 2;
contrastRect.x = textX - margin;
contrastRect.y = textY - margin;
contrastRect.width = textMetrics.width + (margin * 4);
contrastRect.height = heightOffset + (margin * 3);
textRect.x = textX;
textRect.y = textY;
textRect.width = textMetrics.width + (margin * 3);
textRect.height = heightOffset + margin;
// Knock the text down slightly
textY += (margin * 2);
}
else {
// Calculate slope modifier so we can float the rectangle away from the line end, all a bit magic number-y
if (snapPointYStart <= snapPointYEnd) {
// Push right and down
slopeModifier = margin * 4;
}
else {
// Push up and left, bigger number as whole rect height pushed
slopeModifier = -heightOffset - (margin * 4);
}
// Need to further tweak the modifier if we are on the right hand side of the map
if (snapPointXEnd + gridSize > this.canvas.width) {
slopeModifier = -(heightOffset * 1.5);
}
// Calculate our coords and dimensions
contrastRect.x = snapPointXEnd - margin + slopeModifier;
contrastRect.y = snapPointYEnd - margin + slopeModifier;
contrastRect.width = textMetrics.width + (margin * 4);
contrastRect.height = 30 + (margin * 3);
textRect.x = snapPointXEnd + slopeModifier;
textRect.y = snapPointYEnd + slopeModifier;
textRect.width = textMetrics.width + (margin * 3);
textRect.height = 30 + margin;
textX = snapPointXEnd + margin + slopeModifier;
textY = snapPointYEnd + (margin * 2) + slopeModifier;
}
// Draw our 'contrast line'
this.ctx.strokeStyle = "black";
this.ctx.lineWidth = 5;
this.ctx.lineTo(snapPointXEnd, snapPointYEnd);
this.ctx.stroke();
// Draw our centre line
this.ctx.strokeStyle = "rgba(255, 255, 255, 0.6)";
this.ctx.lineWidth = 3;
this.ctx.lineTo(snapPointXEnd, snapPointYEnd);
this.ctx.stroke();
this.ctx.lineWidth = 3;
this.ctx.strokeStyle = "black";
this.ctx.fillStyle = "rgba(255, 255, 255, 0.6)";
roundRect(this.ctx, textRect.x, textRect.y, textRect.width, textRect.height, 10, true);
// Finally draw our text
this.ctx.fillStyle = "black";
this.ctx.textBaseline = 'top';
this.ctx.fillText(text, textX, textY);
this.drawBobble(snapPointXStart, snapPointYStart);
this.drawBobble(snapPointXEnd, snapPointYEnd, 3);
}
};
function check_token_visibility() {
if (window.DM || $("#fog_overlay").is(":hidden"))
return;
var canvas = document.getElementById("fog_overlay");
var ctx = canvas.getContext("2d");
for (var id in window.TOKEN_OBJECTS) {
var left = parseInt(window.TOKEN_OBJECTS[id].options.left.replace('px', '')) + (window.TOKEN_OBJECTS[id].options.size / 2);
var top = parseInt(window.TOKEN_OBJECTS[id].options.top.replace('px', '')) + (window.TOKEN_OBJECTS[id].options.size / 2);
var pixeldata = ctx.getImageData(left, top, 1, 1).data;
var selector = "div[data-id='" + id + "']";
if (pixeldata[3] == 255) {
$(selector).hide();
}
else if (!window.TOKEN_OBJECTS[id].options.hidden) {
$(selector).show();
//console.log('SHOW '+id);
}
}
}
function circle2(a, b) {
var R = a.r,
r = b.r,
dx = b.x - a.x,
dy = b.y - a.y,
d = Math.sqrt(dx * dx + dy * dy),
x = (d * d - r * r + R * R) / (2 * d),
y = Math.sqrt(R * R - x * x);
dx /= d;
dy /= d;
return [
[a.x + dx * x - dy * y, a.y + dy * x + dx * y],
[a.x + dx * x + dy * y, a.y + dy * x - dx * y]
];
}
function circle_intersection(x0, y0, r0, x1, y1, r1) {
var a, dx, dy, d, h, rx, ry;
var x2, y2;
/* dx and dy are the vertical and horizontal distances between
* the circle centers.
*/
dx = x1 - x0;
dy = y1 - y0;
/* Determine the straight-line distance between the centers. */
d = Math.sqrt((dy * dy) + (dx * dx));
/* Check for solvability. */
if (d > (r0 + r1)) {
/* no solution. circles do not intersect. */
return false;
}
if (d < Math.abs(r0 - r1)) {
/* no solution. one circle is contained in the other */
return false;
}
/* 'point 2' is the point where the line through the circle
* intersection points crosses the line between the circle
* centers.
*/
/* Determine the distance from point 0 to point 2. */
a = ((r0 * r0) - (r1 * r1) + (d * d)) / (2.0 * d);
/* Determine the coordinates of point 2. */
x2 = x0 + (dx * a / d);
y2 = y0 + (dy * a / d);
/* Determine the distance from point 2 to either of the
* intersection points.
*/
h = Math.sqrt((r0 * r0) - (a * a));
/* Now determine the offsets of the intersection points from
* point 2.
*/
rx = -dy * (h / d);
ry = dx * (h / d);
/* Determine the absolute intersection points. */
var xi = x2 + rx;
var xi_prime = x2 - rx;
var yi = y2 + ry;
var yi_prime = y2 - ry;
return [xi, xi_prime, yi, yi_prime];
}
function reset_canvas() {
$('#fog_overlay').width($("#scene_map").width());
$('#fog_overlay').height($("#scene_map").height());
$('#grid_overlay').width($("#scene_map").width());
$('#grid_overlay').height($("#scene_map").height());
$('#draw_overlay').width($("#scene_map").width());
$('#draw_overlay').height($("#scene_map").height());
$('#draw_overlay').get(0).width = $("#scene_map").width();
$('#draw_overlay').get(0).height = $("#scene_map").height();
var canvas = document.getElementById("fog_overlay");
var ctx = canvas.getContext("2d");
if (!window.FOG_OF_WAR) {
ctx.clearRect(0, 0, canvas.width, canvas.height);
return;
}
canvas.width = $("#scene_map").width();
canvas.height = $("#scene_map").height();
if (window.DM) {
ctx.fillStyle = "rgba(0, 0, 0, 0.5)";
ctx.fillRect(0, 0, canvas.width, canvas.height);
}
else {
ctx.fillStyle = "rgb(0, 0, 0)";
ctx.fillRect(0, 0, canvas.width, canvas.height);
}
var canvas_grid = document.getElementById("grid_overlay");
var ctx_grid = canvas_grid.getContext("2d");
if (window.CURRENT_SCENE_DATA && (window.CURRENT_SCENE_DATA.grid == "1" || window.WIZARDING) && window.CURRENT_SCENE_DATA.hpps > 10 && window.CURRENT_SCENE_DATA.vpps > 10) {
//alert(window.CURRENT_SCENE_DATA.hpps + " "+ window.CURRENT_SCENE_DATA.vpps);
canvas_grid.width = $("#scene_map").width();
canvas_grid.height = $("#scene_map").height();
startX = Math.round(window.CURRENT_SCENE_DATA.offsetx);
startY = Math.round(window.CURRENT_SCENE_DATA.offsety);
//alert(startX+ " "+startY);
if (window.WIZARDING) {
let al1 = {
x: parseInt($("#aligner1").css("left")) + 29,
y: parseInt($("#aligner1").css("top")) + 29,
};
let al2 = {
x: parseInt($("#aligner2").css("left")) + 29,
y: parseInt($("#aligner2").css("top")) + 29,
};
ctx_grid.setLineDash([30, 5]);
ctx_grid.lineWidth = 2;
ctx_grid.strokeStyle = "green";
ctx_grid.beginPath();
ctx_grid.moveTo(al1.x, al1.y);
ctx_grid.lineTo(al2.x, al1.y);
ctx_grid.stroke();
ctx_grid.beginPath();
ctx_grid.moveTo(al2.x, al1.y);
ctx_grid.lineTo(al2.x, al2.y);
ctx_grid.stroke();
ctx_grid.beginPath();
ctx_grid.moveTo(al2.x, al2.y);
ctx_grid.lineTo(al1.x, al2.y);
ctx_grid.stroke();
ctx_grid.beginPath();
ctx_grid.moveTo(al1.x, al2.y);
ctx_grid.lineTo(al1.x, al1.y);
ctx_grid.stroke();
ctx_grid.strokeStyle = "rgba(255,0,0,1)";
if (window.ScenesHandler.scene.upscaled == "1")
ctx_grid.lineWidth = 2;
else
ctx_grid.lineWidth = 1;
ctx_grid.setLineDash([30, 5]);
}
else {
ctx_grid.strokeStyle = "rgba(0,0,0,0.5)";
//ctx_grid.strokeStyle = "green";
ctx_grid.lineWidth = 3;
}
//alert('inizio 1');
if (window.CURRENT_SCENE_DATA.grid == "1") {
var increment = window.CURRENT_SCENE_DATA.hpps;
ctx_grid.lineWidth = 1;
var skip = true;
for (var i = startX; i < $("#scene_map").width(); i = i + increment) {
if (window.CURRENT_SCENE_DATA.grid_subdivided == "1" && skip) {
skip = false;
continue;
}
else {
skip = true;
}
ctx_grid.beginPath();
ctx_grid.moveTo(i, 0);
ctx_grid.lineTo(i, $("#scene_map").height());
ctx_grid.stroke();
}
var increment = window.CURRENT_SCENE_DATA.vpps;
skip = true;
for (var i = startY; i < $("#scene_map").height(); i = i + increment) {
if (window.CURRENT_SCENE_DATA.grid_subdivided == "1" && skip) {
skip = false;
continue;
}
else {
skip = true;
}
ctx_grid.beginPath();
ctx_grid.moveTo(0, i);
ctx_grid.lineTo($("#scene_map").width(), i);
ctx_grid.stroke();
}
}
//alert('sopravvissuto');
}
else {
ctx_grid.clearRect(0, 0, canvas_grid.width, canvas_grid.height);
}
}
function redraw_canvas() {
if (!window.FOG_OF_WAR)
return;
var canvas = document.getElementById("fog_overlay");
var ctx = canvas.getContext("2d");
if (window.DM)
fogStyle = "rgba(0, 0, 0, 0.5)";
else
fogStyle = "rgb(0, 0, 0)";
ctx.clearRect(0, 0, canvas.width, canvas.height);
ctx.fillStyle = fogStyle;
ctx.fillRect(0, 0, canvas.width, canvas.height);
for (var i = 0; i < window.REVEALED.length; i++) {
var d = window.REVEALED[i];
if (d.length == 4) { // SIMPLE CASE OF RECT TO REVEAL
ctx.clearRect(d[0], d[1], d[2], d[3]);
continue;
}
if (d[5] == 0) { //REVEAL
if (d[4] == 0) { // REVEAL SQUARE
ctx.clearRect(d[0], d[1], d[2], d[3]);
}
if (d[4] == 1) { // REVEAL CIRCLE
ctx.save();
ctx.beginPath();
ctx.fillStyle = "rgba(0,0,0,0);"
ctx.arc(d[0], d[1], d[2], 0, 2 * Math.PI, false);
ctx.clip();
ctx.clearRect(d[0] - d[2], d[1] - d[2], d[2] * 2, d[2] * 2);
ctx.restore();
}
if (d[4] == 2) {
// reveal ALL!!!!!!!!!!
ctx.clearRect(0, 0, $("#scene_map").width(), $("#scene_map").height());
}
if (d[4] == 3) {
// REVEAL POLYGON
clearPolygon(d[0]);
}
}
if (d[5] == 1) { // HIDE
if (d[4] == 0) { // HIDE SQUARE
ctx.clearRect(d[0], d[1], d[2], d[3]);
ctx.fillStyle = fogStyle;
ctx.fillRect(d[0], d[1], d[2], d[3]);
}
if (d[4] == 1) { // HIDE CIRCLE
ctx.save();
ctx.beginPath();
ctx.arc(d[0], d[1], d[2], 0, 2 * Math.PI, false);
ctx.clip();
ctx.clearRect(d[0] - d[2], d[1] - d[2], d[2] * 2, d[2] * 2);
ctx.restore();
ctx.fillStyle = fogStyle;
ctx.arc(d[0], d[1], d[2], 0, 2 * Math.PI, false);
ctx.fill();
}
if (d[4] == 3) {
// HIDE POLYGON
drawPolygon(d[0], fogStyle);
}
}
}
}
function redraw_drawings() {
var canvas = document.getElementById("draw_overlay");
var ctx = canvas.getContext("2d");
ctx.clearRect(0, 0, canvas.width, canvas.height);
for (var i = 0; i < window.DRAWINGS.length; i++) {
data = window.DRAWINGS[i];
if (data[0] == "eraser") {
ctx.clearRect(data[3], data[4], data[5], data[6]);
}
if (data[0] == "rect" && data[1] == "filled") {
ctx.fillStyle = data[2];
ctx.fillRect(data[3], data[4], data[5], data[6]);
}
if (data[0] == "rect" && data[1] == "transparent") {
ctx.fillStyle = data[2].replace(')', ', 0.5)').replace('rgb', 'rgba');
ctx.fillRect(data[3], data[4], data[5], data[6]);
}
if (data[0] == "rect" && data[1] == "border") {
ctx.strokeStyle = data[2];
ctx.lineWidth = "6";
ctx.beginPath();
ctx.rect(data[3], data[4], data[5], data[6]);
ctx.stroke();
}
if (data[0] == "arc" && data[1] == "filled") {
ctx.fillStyle = data[2];
ctx.save();
ctx.beginPath();
ctx.arc(data[3], data[4], data[5], 0, 2 * Math.PI, false);
ctx.clip();
ctx.clearRect(data[3] - data[5], data[4] - data[5], data[5] * 2, data[5] * 2);
ctx.restore();
ctx.arc(data[3], data[4], data[5], 0, 2 * Math.PI, false);
ctx.fill();
}
if (data[0] == "arc" && data[1] == "transparent") {
ctx.fillStyle = data[2].replace(')', ', 0.5)').replace('rgb', 'rgba');
ctx.save();
ctx.beginPath();
ctx.arc(data[3], data[4], data[5], 0, 2 * Math.PI, false);
ctx.clip();
ctx.clearRect(data[3] - data[5], data[4] - data[5], data[5] * 2, data[5] * 2);
ctx.restore();
ctx.arc(data[3], data[4], data[5], 0, 2 * Math.PI, false);
ctx.fill();
}
if (data[0] == "arc" && data[1] == "border") {
ctx.strokeStyle = data[2];
ctx.lineWidth = "6";
ctx.beginPath();
ctx.arc(data[3], data[4], data[5], 0, 2 * Math.PI, false);
ctx.stroke();
}
if (data[0] == "cone" && data[1] == "transparent") {
ctx.fillStyle = data[2].replace(')', ', 0.5)').replace('rgb', 'rgba');
var L = Math.sqrt(Math.pow(data[5] - data[3], 2) + Math.pow(data[6] - data[4], 2));
var T = Math.sqrt(Math.pow(L, 2) + Math.pow(L / 2, 2));
var res = circle_intersection(data[3], data[4], T, data[5], data[6], L / 2);
ctx.lineWidth = "6";
ctx.beginPath();
ctx.moveTo(data[3], data[4]);
ctx.lineTo(res[0], res[2]);
ctx.lineTo(res[1], res[3]);
ctx.closePath();
ctx.fill();
}
if (data[0] == "cone" && data[1] == "filled") {
ctx.fillStyle = data[2];
var L = Math.sqrt(Math.pow(data[5] - data[3], 2) + Math.pow(data[6] - data[4], 2));
var T = Math.sqrt(Math.pow(L, 2) + Math.pow(L / 2, 2));
var res = circle_intersection(data[3], data[4], T, data[5], data[6], L / 2);
ctx.lineWidth = "6";
ctx.beginPath();
ctx.moveTo(data[3], data[4]);
ctx.lineTo(res[0], res[2]);
ctx.lineTo(res[1], res[3]);
ctx.closePath();
ctx.fill();
}
if (data[0] == "cone" && data[1] == "border") {
ctx.strokeStyle = data[2];
var L = Math.sqrt(Math.pow(data[5] - data[3], 2) + Math.pow(data[6] - data[4], 2));
var T = Math.sqrt(Math.pow(L, 2) + Math.pow(L / 2, 2));
var res = circle_intersection(data[3], data[4], T, data[5], data[6], L / 2);
ctx.lineWidth = "6";
ctx.beginPath();
ctx.moveTo(data[3], data[4]);
ctx.lineTo(res[0], res[2]);
ctx.lineTo(res[1], res[3]);
ctx.closePath();
ctx.stroke();
}
if (data[0] == "line") {
ctx.strokeStyle = data[2];
ctx.lineWidth = "6";
ctx.beginPath();
ctx.moveTo(data[3], data[4]);
ctx.lineTo(data[5], data[6]);
ctx.stroke();
}
if (data[0] == "polygon" && data[1] == "filled") {
drawPolygon(data[3], data[2], false);
}
if (data[0] == "polygon" && data[1] == "transparent") {
drawPolygon(data[3], data[2].replace(')', ', 0.5)').replace('rgb', 'rgba'), false);
}
if (data[0] == "polygon" && data[1] == "border") {
ctx.strokeStyle = data[2];
drawPolygon(data[3], "rgba(0, 0, 0, 0)", false, 6);
ctx.stroke();
}
}
}
function stop_drawing() {
$("#reveal").css("background-color", "");
window.MOUSEDOWN = false;
var target = $("#fog_overlay");
target.css('cursor', '');
target.off('mousedown', drawing_mousedown);
target.off('mouseup', drawing_mouseup);
target.off('mousemove', drawing_mousemove);
target.off('contextmenu', drawing_contextmenu);
var target = $("#VTT");
target.css('cursor', '');
target.off('mousedown', drawing_mousedown);
target.off('mouseup', drawing_mouseup);
target.off('mousemove', drawing_mousemove);
target.off('contextmenu', drawing_contextmenu);
}
function drawing_mousedown(e) {
if (window.DRAGGING && e.data.shap != 'align')
return;
if (e.button != 0)
return;
deselect_all_tokens();
if (e.data.shape === "polygon") {
if (isNaN(e.data.type)) {
redraw_drawings();
} else {
redraw_canvas();
}
const pointX = (e.pageX - 200) * (1.0 / window.ZOOM);
const pointY = (e.pageY - 200) * (1.0 / window.ZOOM);
if (window.BEGIN_MOUSEX && window.BEGIN_MOUSEX.length > 0) {
if (
isPointWithinDistance(
{ x: window.BEGIN_MOUSEX[0], y: window.BEGIN_MOUSEY[0] },
{ x: pointX , y: pointY}
)
) {
savePolygon(e);
return;
} else {
window.BEGIN_MOUSEX.push(pointX);
window.BEGIN_MOUSEY.push(pointY);
}
} else {
window.BEGIN_MOUSEX = [pointX];
window.BEGIN_MOUSEY = [pointY];
}
drawPolygon(
joinPointsArray(
window.BEGIN_MOUSEX,
window.BEGIN_MOUSEY
),
undefined,
!isNaN(e.data.type)
);
drawClosingArea(window.BEGIN_MOUSEX[0], window.BEGIN_MOUSEY[0], !isNaN(e.data.type));
} else {
window.BEGIN_MOUSEX = (e.pageX - 200) * (1.0 / window.ZOOM);
window.BEGIN_MOUSEY = (e.pageY - 200) * (1.0 / window.ZOOM);
window.MOUSEDOWN = true;
}
}
function drawing_mousemove(e) {
var mousex = (e.pageX - 200) * (1.0 / window.ZOOM);
var mousey = (e.pageY - 200) * (1.0 / window.ZOOM);
if (window.MOUSEDOWN) {
var canvas = document.getElementById("fog_overlay");
var ctx = canvas.getContext("2d");
var width = mousex - window.BEGIN_MOUSEX;
var height = mousey - window.BEGIN_MOUSEY;
redraw_canvas();
ctx.fillStyle = "#FF0000";
if (e.data.shape == "rect") {
ctx.fillStyle = "rgba(255,0,0,0.7)";
ctx.fillRect(window.BEGIN_MOUSEX, window.BEGIN_MOUSEY, width, height);
}
else if (e.data.shape == "align") {
for (i = 0; i < 4; i++) {
ctx.strokeStyle = "rgba(255,0,0,0.7)";
ctx.lineWidth = 1;
ctx.beginPath();
ctx.moveTo(window.BEGIN_MOUSEX + i * (width / 3.0), window.BEGIN_MOUSEY);
ctx.lineTo(window.BEGIN_MOUSEX + i * (width / 3.0), window.BEGIN_MOUSEY + height);
ctx.stroke();
ctx.beginPath();
ctx.moveTo(window.BEGIN_MOUSEX, window.BEGIN_MOUSEY + i * (height / 3.0));
ctx.lineTo(window.BEGIN_MOUSEX + width, window.BEGIN_MOUSEY + i * (height / 3.0));
ctx.stroke();
}
//ctx.fillRect(window.BEGIN_MOUSEX, window.BEGIN_MOUSEY, width, height);
}
else if (e.data.shape == "arc") {
centerX = (window.BEGIN_MOUSEX + mousex) / 2;
centerY = (window.BEGIN_MOUSEY + mousey) / 2;
radius = Math.round(Math.sqrt(Math.pow(centerX - mousex, 2) + Math.pow(centerY - mousey, 2)));
ctx.beginPath();
ctx.arc(centerX, centerY, radius, 0, 2 * Math.PI, false);
ctx.fill();
}
else if (e.data.shape == "cone") {
var L = Math.sqrt(Math.pow(mousex - window.BEGIN_MOUSEX, 2) + Math.pow(mousey - window.BEGIN_MOUSEY, 2));
var T = Math.sqrt(Math.pow(L, 2) + Math.pow(L / 2, 2));
var res = circle_intersection(window.BEGIN_MOUSEX, window.BEGIN_MOUSEY, T, mousex, mousey, L / 2);
ctx.fillStyle = "rgba(255,0,0,0.7)";
ctx.lineWidth = "6";
ctx.beginPath();
ctx.moveTo(window.BEGIN_MOUSEX, window.BEGIN_MOUSEY);
ctx.lineTo(res[0], res[2]);
ctx.lineTo(res[1], res[3]);
ctx.closePath();
ctx.fill();
}
else if (e.data.shape == "line") {
ctx.beginPath();
ctx.strokeStyle = "rgba(255,0,0,0.7)";
ctx.lineWidth = 6;
ctx.moveTo(window.BEGIN_MOUSEX, window.BEGIN_MOUSEY);
ctx.lineTo(mousex, mousey);
ctx.stroke();
}
else if (e.data.shape == "select") {
ctx.save();
ctx.beginPath();
ctx.strokeStyle = "white";
ctx.rect(window.BEGIN_MOUSEX, window.BEGIN_MOUSEY, width, height);
ctx.stroke();
ctx.restore();
}
else if (e.data.shape == "measure") {
ctx.save();
// ctx.beginPath();
WaypointManager.setCanvas(canvas);
WaypointManager.registerMouseMove(mousex, mousey);
WaypointManager.storeWaypoint(WaypointManager.currentWaypointIndex, window.BEGIN_MOUSEX, window.BEGIN_MOUSEY, mousex, mousey);
WaypointManager.draw(false);
ctx.fillStyle = '#f50';
ctx.restore();
}
} else {
if (e.data.shape === "polygon" &&
window.BEGIN_MOUSEX && window.BEGIN_MOUSEX.length > 0) {
if (isNaN(e.data.type)) {
redraw_drawings();
} else {
redraw_canvas();
}
drawPolygon(
joinPointsArray(
window.BEGIN_MOUSEX,
window.BEGIN_MOUSEY
),
undefined,
!isNaN(e.data.type),
undefined,
mousex,
mousey
);
drawClosingArea(window.BEGIN_MOUSEX[0], window.BEGIN_MOUSEY[0], !isNaN(e.data.type));
}
}
}
function drawing_mouseup(e) {
mousex = (e.pageX - 200) * (1.0 / window.ZOOM);
mousey = (e.pageY - 200) * (1.0 / window.ZOOM);
// Return early from this function if we are measuring and have hit the right mouse button
if (e.data.shape == "measure" && e.button == 2) {
WaypointManager.checkNewWaypoint(mousex, mousey);
//console.log("Measure right click");
return;
}
if (!window.MOUSEDOWN) {
return;
}
window.MOUSEDOWN = false;
var width = mousex - window.BEGIN_MOUSEX;
var height = mousey - window.BEGIN_MOUSEY;
// [0-3] is always shape data [4] is shape and [5] is type
if (e.data.shape == "line" && e.data.type === "draw") {
data = ['line', $(".drawTypeSelected ").attr('data-value'), $(".colorselected").css('background-color'), window.BEGIN_MOUSEX, window.BEGIN_MOUSEY, mousex, mousey];
window.DRAWINGS.push(data);
redraw_canvas();
redraw_drawings();
window.ScenesHandler.persist();
window.MB.sendMessage('custom/myVTT/drawing', data);
}
if (e.data.shape == "rect" && e.data.type === "draw") {
console.log('disegno');
data = ['rect', $(".drawTypeSelected ").attr('data-value'), $(".colorselected").css('background-color'), window.BEGIN_MOUSEX, window.BEGIN_MOUSEY, width, height];
window.DRAWINGS.push(data);
redraw_canvas();
redraw_drawings();
window.ScenesHandler.persist();
window.MB.sendMessage('custom/myVTT/drawing', data);
}
if (e.data.shape == "rect" && e.data.type === "eraser") {
console.log('disegno');
data = ['eraser', $(".drawTypeSelected ").attr('data-value'), $(".colorselected").css('background-color'), window.BEGIN_MOUSEX, window.BEGIN_MOUSEY, width, height];
window.DRAWINGS.push(data);
redraw_canvas();
redraw_drawings();
window.ScenesHandler.persist();
window.MB.sendMessage('custom/myVTT/drawing', data);
}
if (e.data.shape == "arc" && e.data.type === "draw") {
console.log('son qua');
centerX = (window.BEGIN_MOUSEX + mousex) / 2;
centerY = (window.BEGIN_MOUSEY + mousey) / 2;
radius = Math.round(Math.sqrt(Math.pow(centerX - mousex, 2) + Math.pow(centerY - mousey, 2)));
data = ['arc', $(".drawTypeSelected ").attr('data-value'), $(".colorselected").css('background-color'), centerX, centerY, radius];
window.DRAWINGS.push(data);
redraw_canvas();
redraw_drawings();
window.ScenesHandler.persist();
window.MB.sendMessage('custom/myVTT/drawing', data);
}
if (e.data.shape == "cone" && e.data.type === "draw") {
data = ['cone', $(".drawTypeSelected ").attr('data-value'), $(".colorselected").css('background-color'), window.BEGIN_MOUSEX, window.BEGIN_MOUSEY, mousex, mousey];
window.DRAWINGS.push(data);
redraw_canvas();
redraw_drawings();
window.ScenesHandler.persist();
window.MB.sendMessage('custom/myVTT/drawing', data);
}
if (e.data.shape == "rect" && (e.data.type === "0" || e.data.type === "1")) {
data = [window.BEGIN_MOUSEX, window.BEGIN_MOUSEY, width, height, 0];
data[5] = parseInt(e.data.type);
window.REVEALED.push(data);
window.MB.sendMessage('custom/myVTT/reveal', data);
window.ScenesHandler.persist();
redraw_canvas();
}
if (e.data.shape == "arc" && (e.data.type == 0 || e.data.type == 1)) {
centerX = (window.BEGIN_MOUSEX + mousex) / 2;
centerY = (window.BEGIN_MOUSEY + mousey) / 2;
radius = Math.round(Math.sqrt(Math.pow(centerX - mousex, 2) + Math.pow(centerY - mousey, 2)));
data = [centerX, centerY, radius, 0, 1];
data[5] = parseInt(e.data.type);
window.REVEALED.push(data);
window.MB.sendMessage('custom/myVTT/reveal', data);
window.ScenesHandler.persist();
redraw_canvas();
}
if (e.data.shape == "select") {
// FIND TOKENS INSIDE THE AREA
var c = 0;
for (id in window.TOKEN_OBJECTS) {
var curr = window.TOKEN_OBJECTS[id];
var toktop = parseInt(curr.options.top);
if ((Math.min(window.BEGIN_MOUSEY, mousey, toktop)) == toktop || (Math.max(window.BEGIN_MOUSEY, mousey, toktop) == toktop))
continue;
var tokleft = parseInt(curr.options.left);
if ((Math.min(window.BEGIN_MOUSEX, mousex, tokleft)) == tokleft || (Math.max(window.BEGIN_MOUSEX, mousex, tokleft) == tokleft))
continue;
c++;
// TOKEN IS INSIDE THE SELECTION
curr.selected = true;
//$("#tokens div[data-id='"+id+"']").addClass("tokenselected").css("border","2px solid white");
curr.place();
}
window.MULTIPLE_TOKEN_SELECTED = (c > 1);
redraw_canvas();
console.log("READY");
}
if (e.data.shape == "measure") {
setTimeout(function () {
// We do not clear if we are still measuring, added this as it somehow appeared multiple
// timers could be set, may be a race condition or something still here...
if (!WaypointManager.isMeasuring()) {
redraw_canvas();
}
}, 2000);
WaypointManager.clearWaypoints();
}
if (e.data.shape == "align") {
window.ScenesHandler.scene.grid_subdivided = "0";
console.log("Horizontal Pixel Per Square: " + (width / 3.0) + " Vertical Pixel Per Square " + (height / 3.0));
//ppsX=Math.round((width/window.ScenesHandler.scene.scaleX)/3);
//ppsY=Math.round((height/window.ScenesHandler.scene.scaleY)/3);
ppsX = Math.abs(width / 3.0); // let's try with subpixel precision
ppsY = Math.abs(height / 3.0);