I've recently started learning the Processing for one of my courses, and whilst I've had success in it, this one program seems to allude me. I wanted to practise drawing shapes off-screen, and then call them using the drawShape command. But obviously, that was completely wrong. When I run the HTML file that is linked to my source code, all I get is a blank screen. Note the problem is not that the file is incapable of running, I've had already made plenty of programs, but it seems this time I put in an unknown variable or command and I really don't have the experience to know what I did wrong.
// defines the color of construction
colour inside = color(0);
// defines the location of the construction
var x_pos = 0;
var y_pos = 0;
// defines the width of the construction
var totalWidth = 500;
var roofWidth = 200;
var doorWidth = totalWidth - 300;
var windowWidth = totalWidth - 320;
// defines the height of the construction
var totalHeight = 200;
var roofHeight = totalHeight-50;
var doorHeight = 0;
var windowWidth = 0;
function setup() {
// put setup code here
createCanvas(800,600);
background(0);
// defines the main body of the house & draws it of screen
body = createShape(rect, x_pos,y_pos,totalWidth,totalHeight)
square.setFill(inside);
square.setStroke(false);
endShape(CLOSE);
}
function draw() {
// put drawing code here
fill(0);
shape(body,x_pos,y_pos);
rect(x_pos,y_pos,totalWidth,totalHeight);
}
Related
I am making a 2d(25x20) grid of sprites. But somehow sprites are getting re positioned by itself.enter image description here
makeLandBlocksMatrix : function () {
this.LAND_BLOCK_TAG = 1;
var blockCounter = 0;
var prices = MMMapData.getPrices();
this._blocks = MMUtility.createArray(MMConstants.totalNoRowsPerMap,MMConstants.totalNoColsPerMap);
for (var i = 0; i< MMConstants.totalNoRowsPerMap; i++){
for (var j = 0; j< MMConstants.totalNoColsPerMap; j++){
var block = new MMLandBlockSprite();
block.initWithData(res.BlockBlack,prices[blockCounter],this.LAND_BLOCK_TAG);
block.setPosition(cc.p(block.getContentSize().width*0.5 + i * block.getContentSize().width * 1.0, (this._size.height - block.getContentSize().height*0.5) - j * block.getContentSize().height * 1.0));
this.addChild(block);
block.setBg();
block._bg.setOpacity(0.0);
block.setPriceLabel();
block._priceLabel.setOpacity(0.0);
this._blocks[i][j] = block;
this.LAND_BLOCK_TAG++;
blockCounter++;
}
}
}
And same code is working fine with cocos2d-x(c++).
Thanks.
After lots of tweaks and googling, i just used lower version of cocos2d-html(version 3.7). And same code work as expected.There might be problem in rendering pipeline in latest cocos2d-html. And same issue persist in case we try to make Grid of UI component or Basic components(Sprite,Label) as components number increases positioning difference increases(i.e as show in reference image).
is there a way to modify this code for animate cc to make object in the stage and interact with it ?
it is a bit of pain to make drag and drop in createjs for animate cc
there is nothing in the web that describe how to do it for animate cc or flash cc even the documentation has nothing to tell about drag and drop in the canvas
//Stage
var stage = new createjs.Stage("demoCanvas");
//VARIABLES
//Drag Object Size
dragRadius = 40;
//Destination Size
destHeight = 100;
destWidth = 100;
//Circle Creation
var label = new createjs.Text("DRAG ME", "14px Lato", "#fff");
label.textAlign="center";
label.y -= 7;
var circle = new createjs.Shape();
circle.graphics.setStrokeStyle(2).beginStroke("black")
.beginFill("red").drawCircle(0,0, dragRadius);
//Drag Object Creation
//Placed inside a container to hold both label and shape
var dragger = new createjs.Container();
dragger.x = dragger.y = 100;
dragger.addChild(circle, label);
dragger.setBounds(100, 100, dragRadius*2, dragRadius*2);
//DragRadius * 2 because 2*r = width of the bounding box
var label2 = new createjs.Text("HERE", "bold 14px Lato", "#000");
label2.textAlign = "center";
label2.x += 50;
label2.y += 40;
var box = new createjs.Shape();
box.graphics.setStrokeStyle(2).beginStroke("black").rect(0, 0, destHeight, destWidth);
var destination = new createjs.Container();
destination.x = 350;
destination.y = 50;
destination.setBounds(350, 50, destHeight, destWidth);
destination.addChild(label2, box);
//DRAG FUNCTIONALITY =====================
dragger.on("pressmove", function(evt){
evt.currentTarget.x = evt.stageX;
evt.currentTarget.y = evt.stageY;
stage.update(); //much smoother because it refreshes the screen every pixel movement instead of the FPS set on the Ticker
if(intersect(evt.currentTarget, destination)){
evt.currentTarget.alpha=0.2;
box.graphics.clear();
box.graphics.setStrokeStyle(3)
.beginStroke("#0066A4")
.rect(0, 0, destHeight, destWidth);
}else{
evt.currentTarget.alpha=1;
box.graphics.clear(); box.graphics.setStrokeStyle(2).beginStroke("black").rect(0, 0, destHeight, destWidth);
}
});
//Mouse UP and SNAP====================
dragger.on("pressup", function(evt) {
if(intersect(evt.currentTarget, destination)){
dragger.x = destination.x + destWidth/2;
dragger.y = destination.y + destHeight/2;
dragger.alpha = 1;
box.graphics.clear();
box.graphics.setStrokeStyle(2).beginStroke("black").rect(0, 0, destHeight, destWidth);
stage.update(evt);
}
});
//Tests if two objects are intersecting
//Sees if obj1 passes through the first and last line of its
//bounding box in the x and y sectors
//Utilizes globalToLocal to get the x and y of obj1 in relation
//to obj2
//PRE: Must have bounds set for each object
//Post: Returns true or false
function intersect(obj1, obj2){
var objBounds1 = obj1.getBounds().clone();
var objBounds2 = obj2.getBounds().clone();
var pt = obj1.globalToLocal(objBounds2.x, objBounds2.y);
var h1 = -(objBounds1.height / 2 + objBounds2.height);
var h2 = objBounds2.width / 2;
var w1 = -(objBounds1.width / 2 + objBounds2.width);
var w2 = objBounds2.width / 2;
if(pt.x > w2 || pt.x < w1) return false;
if(pt.y > h2 || pt.y < h1) return false;
return true;
}
//Adds the object into stage
stage.addChild(destination, dragger);
stage.mouseMoveOutside = true;
stage.update();
thanks
I am not exactly sure what you are asking. The demo you showed works fine (looks like it came from this codepen), and it is not clear what you are trying to add. This demo was made directly in code, not with Animate CC - which is really good for building assets, animations, and display list structure, but you should write application code around what gets exported.
There are plenty of documentation and examples online for Drag and Drop, in the EaselJS GitHub, and EaselJS docs:
DragAndDrop demo in GitHub
Live demo on EaselJS demos page
Documentation on pressMove
Tutorial on Mouse Events which includes Drag and Drop
I recommend narrowing down what you are trying to do, show what code or approaches you have tried so far, and posting specific questions here.
Lastly, here is the first part of an ongoing series for working with Animate CC: http://blog.gskinner.com/archives/2015/04/introduction-to-the-flash-cc-html5-canvas-document.html
Cheers.
How can I get the screen size using with addon SDK ?
var w = screen.width/2;
gives me an error : Message: ReferenceError: screen is not defined
You can use the window you have associated to your add-on; it's probably safer, because it will work even if the last visible window is closed but firefox is still opened (e.g. on OS X):
const { window: { screen }} = require("sdk/addon/window");
console.log(screen.width);
This will work:
var screen = require('sdk/window/utils').getMostRecentBrowserWindow().screen;
console.log(screen.width);
If you want multi monitor support I have a script but you have to understand it. It uses XPCOM, and it needs a range. This script only checks along the x axis, you should also check along the y axis.
So this is the script here that will detect all monitors in the x plane IF it falls in the y plane of 0-20 coordintates of primary screen, I don't recommend this method.
var sm = Cc['#mozilla.org/gfx/screenmanager;1'].getService(Ci.nsIScreenManager);
function getScreens() {
var screen = null;
var screens = [];
var screenManager = sm;
var min = 0;
var max = 0;
for (x = 0; x < 15000; x += 600) {
var s = screenManager.screenForRect(x, 20, 10, 10);
if (s != screen) {
screen = s;
var left = {},
top = {},
width = {},
height = {};
screenManager.primaryScreen.GetRect(left, top, width, height);
screens.push({
width: width.value,
height: height.value,
min: min,
max: min + width.value
});
min += width.value;
}
}
return screens;
}
var screens = getScreens();
console.log('screens:', screens);
This is the method I recommend
I needed to detect all monitor dimensons and had to resort to jsctypes, if you need that its here: https://github.com/Noitidart/NativeShot/blob/master/modules/workers/MainWorker.js#L853-L1523
That code is extremely long, thats because its getting all monitors and the taking screenshots of them. So you will want to extract just the monitors part. If you need help with it I can do it for you.
Flash AS3:
I just need to know how to check a condition for roll over effect on similar colour movieclips which is near by in a group of random colours movieclips in a grid whereas it is using 2D Array in flash AS3.or
I just need roll over event which i wrote is onBoxOver event function, in that the object which i am targetting is only getting rollover or getting alpha changes. But i need to know how to make rollover for similar colour which are all nearby.
The code which i wrote is below for your reference.
Flash AS3::
package
{
import flash.display.MovieClip;
import flash.events.MouseEvent;
public class playGame extends MovieClip
{
public static var totalRowBoxes:Number = 13;
public static var totalColumnBoxes:Number = 12;
public static var rowGap:Number = 30;
public static var columnGap:Number = 30;
public static var totalColorBoxes:Number = 8;
public static var boxCollection:Array = new Array();
public static var boxCollection1:Array = new Array();
public function playGame(theGame:main)
{
// constructor code
addBoxOnStage();
}
private function addBoxOnStage():void
{
var borderCont:Banner = new Banner();
var scoreclipCont:scoreclip = new scoreclip();
addChild(borderCont);
addChild(scoreclipCont);
scoreclipCont.x = 0;
scoreclipCont.y = 0;
createLevel(1);
for (var i:Number = 0; i<totalRowBoxes; i++)
{
boxCollection[i] = new Array(i);
for (var j:Number = 0; j<totalColumnBoxes; j++)
{
var squareCont:square = new square();
squareCont.x = 30 + (i * rowGap);
squareCont.y = 30 + (j * columnGap);
squareCont.name = i + "_" + j;
var boxCollection1:Array = new Array();
boxCollection1[0] = Math.round(Math.random() * 8);
boxCollection1[1] = squareCont;
var boxColour:Number = new Number();
boxColour = boxCollection1[0];
boxCollection[i][j] = boxCollection1[1];
addChild(squareCont);
squareCont.gotoAndStop(boxCollection1[0]);
squareCont.addEventListener(MouseEvent.MOUSE_OVER, onBoxOver); squareCont.addEventListener(MouseEvent.MOUSE_OUT, onBoxOut);
squareCont.addEventListener(MouseEvent.CLICK, onBoxClick);
}
}
}
private function onBoxClick(eve:MouseEvent):void
{
}
private function onBoxOver(eve:MouseEvent):void
{
for (var i:Number=0; i< totalRowBoxes; i++)
{
for (var j:Number=0; j<totalColumnBoxes; j++)
{
eve.target.alpha = 0.3;
// trace(boxCollection[i][j].currentFrame)
trace(eve.target);
}
}
}
private function onBoxOut(eve:MouseEvent):void
{
eve.target.alpha = 1;
}
private function createLevel(lvl):void
{
}
}
}
![My Game screenshot here colourbox][1]
Thanks in Advance. Greatly Appreciable for the reply.
Hi this is the image or screenshot of my project. In that image there are 8 colours randomly arranged. whenever i make mouse position or rollover on any box , the condition should check whether the same colour occurs around the box(eg.top, down, left, right) which i am making rollover.
1.If the same colour occur on the top of the box which i am pointing the cursor , the top box and the box which i am pointing both should get less alpha, else only the pointing box should get less alpha. this is my concept friends. please go through the image and let me know if u have any doubts.
I am still unsure what you mean by 'nearby'. (neighbour tiles? adjacent of similar colour?...)
If 'nearby' means adjacent, you need to read about flood fill algorithms. There is a good wiki article about this. You would use that to crawl through the list of tiles similar enough to trigger the effect you want.
I also don't know what 'similar' colour means in your project. You will need a method to determine weather two colours are similar. There is a stackoverflow question re: similar colour detection. It has a good answer to start you out in your research. look here.
I'm using mapbox-gl-draw to add move-able features to my map. In addition to movability functionality, I am needing rotate/transform -ability functionality for the features akin to Leaflet.Path.Transform.
At current, would my only option to achieve be to create a custom mode?
e.g. something like:
map.on('load', function() {
Draw.changeMode('transform');
});
I am not able to convert my map and it's features to mapbox-gl-leaflet in order to implement Leaflet.Path.Transform as losing rotation / bearing / pitch support is not an option.
Long answer incoming. (see http://mapster.me/mapbox-gl-draw-rotate-mode and http://npmjs.com/package/mapbox-gl-draw-rotate-mode for some final products, https://github.com/mapstertech/mapbox-gl-draw-rotate-mode)
I've been working on something similar for a custom project, and not using a draw library. My project involves some pretty regularly sized objects, not very complex polygons, so the solution might be too simple for you but it may be the right path. I just have rotate and move.
Doing movement isn't too hard geographically. Here's some help to get you started. A basic JSBin is up at https://jsbin.com/yoropolewo/edit?html,output with some drag functionality (too tired to do rotate too).
First, register the necessary click events to have a dragging event. You can listen on the specific Mapbox layers for a mousedown, then on the whole document for a mousemove and mouseup.
To do individual shape rotation, you need to ensure that you are referring to the right feature. In this example I assume there's just one feature in the source data, but that's probably too simple for most uses, so you have to extrapolate. The source data is what we affect when we setData() later on. There are obviously numerous ways to do what I'm doing here, but I'm trying to be clear.
var currentDragging = false;
var currentDraggingFeature = false;
var currentDraggingType = false;
var firstDragEvent = false;
map.on('mousedown','my-layer-id',function(e) {
currentDragging = 'my-source-id'; // this must correspond to the source-id of the layer
currentDraggingFeature = e.features[0]; // you may have to filter this to make sure it's the right feature
currentDraggingType = 'move'; // rotation or move
firstDragEvent = map.unproject([e.originalEvent.layerX,e.originalEvent.layerY]);
});
window.addEventListener('mousemove',dragEvent);
window.addEventListener('mouseup',mouseUpEvent);
You will need a function, then, that takes an initial point, a distance, and a rotation, and returns a point back to you. Like this:
Number.prototype.toRad = function() {
return this * Math.PI / 180;
}
Number.prototype.toDeg = function() {
return this * 180 / Math.PI;
}
function getPoint(point, brng, dist) {
dist = dist / 63.78137; // this number depends on how you calculate the distance
brng = brng.toRad();
var lat1 = point.lat.toRad(), lon1 = point.lng.toRad();
var lat2 = Math.asin(Math.sin(lat1) * Math.cos(dist) +
Math.cos(lat1) * Math.sin(dist) * Math.cos(brng));
var lon2 = lon1 + Math.atan2(Math.sin(brng) * Math.sin(dist) *
Math.cos(lat1),
Math.cos(dist) - Math.sin(lat1) *
Math.sin(lat2));
if (isNaN(lat2) || isNaN(lon2)) return null;
return [lon2.toDeg(),lat2.toDeg()];
}
Now, the key is the unproject method in Mapbox GL JS, so you can move between x/y coordinates on the mouse and lng/lat on your map. Then, using the map.getSource().setData() function to set a new geoJSON.
I am turning the x/y into coordinates immediately here but you can do it at any point. Something like the following for moving:
function moveEvent(e) {
// In the case of move, you are just translating the points based on distance and angle of the drag
// Exactly how your translate your points here can depend on the shape
var geoPoint = map.unproject([e.layerX,e.layerY]);
var xDrag = firstDragEvent.lng - geoPoint.lng;
var yDrag = firstDragEvent.lat - geoPoint.lat;
var distanceDrag = Math.sqrt( xDrag*xDrag + yDrag*yDrag );
var angle = Math.atan2(xDrag, yDrag) * 180 / Math.PI;
// Once you have this information, you loop over the coordinate points you have and use a function to find a new point for each
var newFeature = JSON.parse(JSON.stringify(currentDraggingFeature));
if(newFeature.geometry.type==='Polygon') {
var newCoordinates = [];
newFeature.geometry.coordinates.forEach(function(coords) {
newCoordinates.push(getPoint(coords,distanceDrag,angle));
});
newFeature.geometry.coordinates = newCoordinates;
}
map.getSource(currentDragging).setData(newFeature);
}
Rotating is a little harder because you want the shape to rotate around a central point, and you need to know the distance of each point to that central point in order to do that. If you have a simple square polygon this calculation would be easy. If not, then using something like this would be helpful (Finding the center of Leaflet polygon?):
var getCentroid2 = function (arr) {
var twoTimesSignedArea = 0;
var cxTimes6SignedArea = 0;
var cyTimes6SignedArea = 0;
var length = arr.length
var x = function (i) { return arr[i % length][0] };
var y = function (i) { return arr[i % length][1] };
for ( var i = 0; i < arr.length; i++) {
var twoSA = x(i)*y(i+1) - x(i+1)*y(i);
twoTimesSignedArea += twoSA;
cxTimes6SignedArea += (x(i) + x(i+1)) * twoSA;
cyTimes6SignedArea += (y(i) + y(i+1)) * twoSA;
}
var sixSignedArea = 3 * twoTimesSignedArea;
return [ cxTimes6SignedArea / sixSignedArea, cyTimes6SignedArea / sixSignedArea];
}
Once you have the ability to know the polygon's center, you're golden:
function rotateEvent(e) {
// In the case of rotate, we are keeping the same distance from the center but changing the angle
var findPolygonCenter = findCenter(currentDraggingFeature);
var geoPoint = map.unproject([e.layerX,e.layerY]);
var xDistanceFromCenter = findPolygonCenter.lng - geoPoint.lng;
var yDistanceFromCenter = findPolygonCenter.lat - geoPoint.lat;
var angle = Math.atan2(xDistanceFromCenter, yDistanceFromCenter) * 180 / Math.PI;
var newFeature = JSON.parse(JSON.stringify(currentDraggingFeature));
if(newFeature.geometry.type==='Polygon') {
var newCoordinates = [];
newFeature.geometry.coordinates.forEach(function(coords) {
var xDist = findPolygonCenter.lng - coords[0];
var yDist = findPolygonCenter.lat - coords[1];
var distanceFromCenter = Math.sqrt( xDist*xDist + yDist*yDist );
var rotationFromCenter = Math.atan2(xDist, yDist) * 180 / Math.PI;
newCoordinates.push(
getPoint(coords,distanceFromCenter,rotationFromCenter+angle)
);
});
newFeature.geometry.coordinates = newCoordinates;
}
}
Of course, throughout, ensure that your coordinates are being passed and returned correctly from functions. Some of this code may have incorrect levels of arrays in it. It's very easy to run into bugs with the lat/lng object versus the geoJSON arrays.
I hope the explanation is brief but clear enough, and that you understand logically what we are doing to reorient these points. That's the main point, the exact code is details.
Maybe I should just make a module or fork GL Draw...