mirror of
https://github.com/photonstorm/phaser
synced 2024-11-27 07:01:20 +00:00
New lineIntersectLine() function working nicely.
This commit is contained in:
photonstorm
parent
82cb66f47b
commit
5b85c910cb
8 changed files with 555 additions and 26 deletions
174
examples/wip/create map polygon.js
Normal file
174
examples/wip/create map polygon.js
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var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, update: update, render: render });
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function preload() {
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game.load.tilemap('map', 'assets/tilemaps/maps/platform.json', null, Phaser.Tilemap.TILED_JSON);
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game.load.image('platformer_tiles', 'assets/tilemaps/tiles/platformer_tiles.png');
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game.load.spritesheet('gameboy', 'assets/sprites/gameboy_seize_color_40x60.png', 40, 60);
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game.load.spritesheet('balls', 'assets/sprites/balls.png', 17, 17);
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}
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var map;
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var layer;
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var sprite;
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var sprite2;
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var balls;
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function create() {
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game.stage.backgroundColor = '#124184';
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map = game.add.tilemap('map');
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map.addTilesetImage('platformer_tiles');
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map.setCollisionBetween(21, 53);
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layer = map.createLayer('Tile Layer 1');
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// layer.debug = true;
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// var mapLayer = map.layers[0];
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// var p = [];
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// var direction = 'e';
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// var x = 0;
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// var y = 0;
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// for (var y = 0, h = mapLayer.height; y < h; y++)
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// {
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// for (var x = 0, w = mapLayer.width; x < w; x++)
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// {
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// var tile = mapLayer.data[y][x];
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// if (tile)
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// {
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// if (tile.faceTop)
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// tile.faceTop = false;
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// tile.faceBottom = false;
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// tile.faceLeft = false;
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// tile.faceRight = false;
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// }
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// }
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// }
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// sprite = game.add.sprite(270, 100, 'gameboy', 0);
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// sprite.name = 'red';
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// sprite.body.collideWorldBounds = true;
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// sprite.body.minBounceVelocity = 0.9;
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// sprite.body.bounce.setTo(0.5, 0.9);
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// sprite.body.friction = 0.5;
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}
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/*---------------------------------------------------------------------------
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Returns an Object with the following properties:
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intersects -Boolean indicating if an intersection exists.
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start_inside -Boolean indicating if Point A is inside of the polygon.
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end_inside -Boolean indicating if Point B is inside of the polygon.
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intersections -Array of intersection Points along the polygon.
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centroid -A Point indicating "center of mass" of the polygon.
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"pArry" is an Array of Points.
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----------------------------------------------------------------------------*/
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function lineIntersectPoly(A : Point, B : Point, pArry:Array):Object {
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var An:int=1;
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var Bn:int=1;
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var C:Point;
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var D:Point;
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var i:Point;
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var cx:Number=0;
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var cy:Number=0;
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var result:Object = new Object();
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var pa:Array=pArry.slice(); //Copy to prevent growing points when connecting ends.
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pa.push(pa[0]); //Create line from last Point to beginning Point
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result.intersects = false;
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result.intersections=[];
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result.start_inside=false;
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result.end_inside=false;
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var n:int=pa.length-1;
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while(n > -1){
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C=Point(pa[n]);
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if(n > 0){
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cx+=C.x;
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cy+=C.y;
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D=Point(pa[n-1])||Point(pa[0]);
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i=lineIntersectLine(A,B,C,D);
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if(i != null){
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result.intersections.push(i);
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}
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if(lineIntersectLine(A,new Point(C.x+D.x,A.y),C,D) != null){
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An++;
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}
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if(lineIntersectLine(B,new Point(C.x+D.x,B.y),C,D) != null){
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Bn++;
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}
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}
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n--;
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}
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if(An % 2 == 0){
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result.start_inside=true;
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}
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if(Bn % 2 == 0){
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result.end_inside=true;
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}
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result.centroid=new Point(cx/(pa.length-1),cy/(pa.length-1));
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result.intersects = result.intersections.length > 0;
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return result;
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}
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function launch() {
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// sprite.body.velocity.x = -200;
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// sprite.body.velocity.y = -200;
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sprite2.body.velocity.x = -200;
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sprite2.body.velocity.y = -200;
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}
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function update() {
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// game.physics.collide(balls, layer);
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// game.physics.collide(sprite, layer);
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// game.physics.collide(sprite2, layer);
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// game.physics.collide(sprite, sprite2);
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}
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function render() {
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// game.debug.renderBodyInfo(sprite2, 32, 32);
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// game.debug.renderPhysicsBody(sprite2.body);
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// game.debug.renderText(sprite2.body.left, 32, 30);
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// game.debug.renderText(sprite2.body.right, 32, 50);
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// game.debug.renderText(sprite2.body.top, 32, 70);
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// game.debug.renderText(sprite2.body.bottom, 32, 90);
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// for (var i = 0; i < balls._container.length; i++)
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// {
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// }
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// if (sprite)
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// {
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// // game.debug.renderBodyInfo(sprite, 20, 30);
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// game.debug.renderBodyInfo(sprite2, 20, 230);
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// }
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}
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225
examples/wip/line intersection.js
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225
examples/wip/line intersection.js
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@ -0,0 +1,225 @@
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var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, update: update, render: render });
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function preload() {
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game.load.spritesheet('balls', 'assets/sprites/balls.png', 17, 17);
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}
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var lineA1;
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var lineA2;
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var lineB1;
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var lineB2;
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function create() {
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game.stage.backgroundColor = '#124184';
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lineA1 = game.add.sprite(100, 100, 'balls', 0);
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lineA1.inputEnabled = true;
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lineA1.input.enableDrag(true);
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lineA2 = game.add.sprite(400, 300, 'balls', 0);
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lineA2.inputEnabled = true;
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lineA2.input.enableDrag(true);
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lineB1 = game.add.sprite(300, 300, 'balls', 1);
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lineB1.inputEnabled = true;
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lineB1.input.enableDrag(true);
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lineB2 = game.add.sprite(500, 500, 'balls', 1);
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lineB2.inputEnabled = true;
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lineB2.input.enableDrag(true);
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}
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/*---------------------------------------------------------------------------
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Returns an Object with the following properties:
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intersects -Boolean indicating if an intersection exists.
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start_inside -Boolean indicating if Point A is inside of the polygon.
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end_inside -Boolean indicating if Point B is inside of the polygon.
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intersections -Array of intersection Points along the polygon.
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centroid -A Point indicating "center of mass" of the polygon.
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"pArry" is an Array of Points.
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----------------------------------------------------------------------------*/
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// a = point
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// b = point
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// pArry = polygons array
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/*
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function lineIntersectPoly(A, B, pArry) {
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var An =1;
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var Bn =1;
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var C = {x: 0, y: 0};
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var D = {x: 0, y: 0};
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var i = {x: 0, y: 0};
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var cx=0;
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var cy=0;
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var result = {};
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var pa = pArry.slice(); //Copy to prevent growing points when connecting ends.
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pa.push(pa[0]); //Create line from last Point to beginning Point
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result.intersects = false;
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result.intersections=[];
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result.start_inside=false;
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result.end_inside=false;
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var n = pa.length-1;
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while(n > -1){
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C.x = pa[n].x;
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C.y = pa[n].y;
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if(n > 0){
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cx+=C.x;
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cy+=C.y;
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D=Point(pa[n-1])||Point(pa[0]);
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i=lineIntersectLine(A,B,C,D);
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if(i != null){
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result.intersections.push(i);
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}
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if(lineIntersectLine(A,new Point(C.x+D.x,A.y),C,D) != null){
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An++;
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}
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if(lineIntersectLine(B,new Point(C.x+D.x,B.y),C,D) != null){
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Bn++;
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}
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}
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n--;
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}
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if(An % 2 == 0){
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result.start_inside=true;
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}
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if(Bn % 2 == 0){
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result.end_inside=true;
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}
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result.centroid=new Point(cx/(pa.length-1),cy/(pa.length-1));
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result.intersects = result.intersections.length > 0;
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return result;
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}
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*/
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//---------------------------------------------------------------
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//Checks for intersection of Segment if as_seg is true.
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//Checks for intersection of Line if as_seg is false.
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//Return intersection of Segment AB and Segment EF as a Point
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//Return null if there is no intersection
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//---------------------------------------------------------------
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// a, b, e, f = point
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// as_seg = bool (true)
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// returns point
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// Adapted from code by Keith Hair
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function lineIntersectLine(A, B, E, F, as_seg) {
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var ip = { x: 0, y: 0 };
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var a1 = B.y - A.y;
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var a2 = F.y - E.y;
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var b1 = A.x - B.x;
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var b2 = E.x - F.x;
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var c1 = (B.x * A.y) - (A.x * B.y);
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var c2 = (F.x * E.y) - (E.x * F.y);
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var denom = (a1 * b2) - (a2 * b1);
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if (denom === 0)
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{
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return null;
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}
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ip.x = ((b1 * c2) - (b2 * c1)) / denom;
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ip.y = ((a2 * c1) - (a1 * c2)) / denom;
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//---------------------------------------------------
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//Do checks to see if intersection to endpoints
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//distance is longer than actual Segments.
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//Return null if it is with any.
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//---------------------------------------------------
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if (as_seg)
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{
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if (Math.pow((ip.x - B.x) + (ip.y - B.y), 2) > Math.pow((A.x - B.x) + (A.y - B.y), 2))
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{
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return null;
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}
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if (Math.pow((ip.x - A.x) + (ip.y - A.y), 2) > Math.pow((A.x - B.x) + (A.y - B.y), 2))
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{
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return null;
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}
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if (Math.pow((ip.x - F.x) + (ip.y - F.y), 2) > Math.pow((E.x - F.x) + (E.y - F.y), 2))
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{
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return null;
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}
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if (Math.pow((ip.x - E.x) + (ip.y - E.y), 2) > Math.pow((E.x - F.x) + (E.y - F.y), 2))
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{
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return null;
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}
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}
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return ip;
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}
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var c = 'rgb(255,255,255)';
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var p = new Phaser.Point();
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function update() {
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p = lineIntersectLine(lineA1.center, lineA2.center, lineB1.center, lineB2.center, true);
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if (p)
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{
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c = 'rgb(0,255,0)';
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}
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else
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{
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c = 'rgb(255,255,255)';
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}
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}
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function render() {
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game.context.strokeStyle = c;
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game.context.beginPath();
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game.context.moveTo(lineA1.center.x, lineA1.center.y);
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game.context.lineTo(lineA2.center.x, lineA2.center.y);
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game.context.closePath();
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game.context.stroke();
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game.context.beginPath();
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game.context.moveTo(lineB1.center.x, lineB1.center.y);
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game.context.lineTo(lineB2.center.x, lineB2.center.y);
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game.context.closePath();
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game.context.stroke();
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if (p)
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{
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game.context.fillStyle = 'rgb(255,0,255)';
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game.context.fillRect(p.x - 2, p.y - 2, 5, 5);
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game.debug.renderPointInfo(p, 32, 32);
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}
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}
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game.physics.gravity.y = 150;
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/*
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balls = game.add.group();
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for (var i = 0; i < 30; i++)
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balls.setAll('body.bounce.y', 0.9);
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balls.setAll('body.minBounceVelocity', 0.9);
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balls.setAll('body.friction', 0.5);
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*/
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sprite2 = game.add.sprite(340, 250, 'gameboy', 2);
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sprite2.name = 'green';
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sprite2.body.collideWorldBounds = true;
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// sprite2.body.bounce.setTo(0.5, 0.5);
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sprite = game.add.sprite(300, 100, 'gameboy', 0);
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sprite = game.add.sprite(270, 100, 'gameboy', 0);
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sprite.name = 'red';
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sprite.body.collideWorldBounds = true;
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sprite.body.minBounceVelocity = 0.9;
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@ -85,7 +87,7 @@ var flag = false;
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function update() {
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game.physics.collide(balls, layer);
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// game.physics.collide(balls, layer);
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game.physics.collide(sprite, layer);
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game.physics.collide(sprite2, layer);
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game.physics.collide(sprite, sprite2);
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@ -95,7 +97,7 @@ function update() {
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function render() {
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game.debug.renderBodyInfo(sprite2, 32, 32);
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// game.debug.renderPhysicsBody(sprite2.body);
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game.debug.renderPhysicsBody(sprite2.body);
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// game.debug.renderText(sprite2.body.left, 32, 30);
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@ -103,6 +105,12 @@ function render() {
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// game.debug.renderText(sprite2.body.top, 32, 70);
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// game.debug.renderText(sprite2.body.bottom, 32, 90);
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// for (var i = 0; i < balls._container.length; i++)
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// {
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// }
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// if (sprite)
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// {
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// // game.debug.renderBodyInfo(sprite, 20, 30);
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105
examples/wip/tilemap poly.js
Normal file
105
examples/wip/tilemap poly.js
Normal file
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@ -0,0 +1,105 @@
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var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, render: render });
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function preload() {
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game.load.image('phaser', 'assets/sprites/phaser1.png');
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game.load.spritesheet('arrows', 'assets/sprites/arrows.png', 23, 31);
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}
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var arrowStart;
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var arrowEnd;
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var sprite;
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function create() {
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game.stage.backgroundColor = '#2384e7';
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// game.physics.setBoundsToWorld(true, true, false, false);
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// arrowStart = game.add.sprite(100, 100, 'arrows', 0);
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// arrowEnd = game.add.sprite(400, 100, 'arrows', 1);
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// sprite = game.add.sprite(100, 164, 'phaser');
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sprite = game.add.sprite(300, 364, 'phaser');
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// sprite.anchor.setTo(0.5, 0.5);
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sprite.inputEnabled = true;
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sprite.body.collideWorldBounds = true;
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sprite.body.bounce.setTo(1, 1);
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sprite.alpha = 0.2;
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// sprite.body.allowRotation = true;
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// sprite.body.polygon.translate(100, 0);
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|
||||
// sprite.body.setPolygon([new SAT.Vector(0,0), new SAT.Vector(60, 0), new SAT.Vector(100, 40), new SAT.Vector(60, 80), new SAT.Vector(0, 80)], -50, -40);
|
||||
|
||||
sprite.body.setPolygon([new SAT.Vector(0,50), new SAT.Vector(100, 50), new SAT.Vector(100, 0), new SAT.Vector(150, 0), new SAT.Vector(150, 150), new SAT.Vector(100, 150), new SAT.Vector(100, 100), new SAT.Vector(0, 100), new SAT.Vector(0, 50)], -100, -100);
|
||||
|
||||
|
||||
// sprite.body.setCircle(50);
|
||||
// sprite.body.offset.setTo(50, 50);
|
||||
|
||||
// console.log(sprite.body.x, sprite.body.y, sprite.body.shape.radius);
|
||||
|
||||
sprite.events.onInputDown.add(move, this);
|
||||
|
||||
// sprite.body.polygons.rotate(0.4);
|
||||
// sprite.rotation = 0.4;
|
||||
|
||||
// console.log(sprite.body.polygons);
|
||||
|
||||
}
|
||||
|
||||
function move() {
|
||||
|
||||
console.log('move');
|
||||
|
||||
sprite.body.velocity.x = 200;
|
||||
sprite.body.velocity.y = -200;
|
||||
// sprite.body.angularVelocity = 2;
|
||||
|
||||
// sprite.rotation = 0.4;
|
||||
|
||||
// console.log(sprite.body.polygon.points);
|
||||
|
||||
// to: function (properties, duration, ease, autoStart, delay, repeat, yoyo) {
|
||||
|
||||
// game.add.tween(sprite).to( { angle: 359 }, 8000, Phaser.Easing.Linear.None, true, 0, 1000, false);
|
||||
|
||||
// sprite.scale.setTo(2, 2);
|
||||
|
||||
if (sprite.x === 100)
|
||||
{
|
||||
// Here you'll notice we are using a relative value for the tween.
|
||||
// You can specify a number as a string with either + or - at the start of it.
|
||||
// When the tween starts it will take the sprites current X value and add +300 to it.
|
||||
|
||||
// game.add.tween(sprite).to( { x: '+300' }, 2000, Phaser.Easing.Linear.None, true);
|
||||
}
|
||||
else if (sprite.x === 400)
|
||||
{
|
||||
// game.add.tween(sprite).to( { x: '-300' }, 2000, Phaser.Easing.Linear.None, true);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
function render() {
|
||||
|
||||
if (sprite.x === 100 || sprite.x === 400)
|
||||
{
|
||||
// game.debug.renderText('Click sprite to tween', 32, 32);
|
||||
}
|
||||
|
||||
// game.debug.renderText('x: ' + arrowStart.x, arrowStart.x, arrowStart.y - 4);
|
||||
// game.debug.renderText('x: ' + arrowEnd.x, arrowEnd.x, arrowEnd.y - 4);
|
||||
|
||||
game.debug.renderText('sprite.x: ' + sprite.x + ' deltaX: ' + sprite.deltaX, 32, 32);
|
||||
game.debug.renderText('sprite.y: ' + sprite.y + ' deltaY: ' + sprite.deltaY, 32, 48);
|
||||
|
||||
game.debug.renderPhysicsBody(sprite.body);
|
||||
|
||||
game.debug.renderPoint(sprite.center);
|
||||
|
||||
}
|
||||
|
|
@ -1063,8 +1063,8 @@ Phaser.Physics.Arcade.prototype = {
|
|||
body.x += body.overlapX;
|
||||
body.y += body.overlapY;
|
||||
|
||||
body.setBlockFlag(body.blocked.left, body.blocked.right, body.blocked.up, body.blocked.down, body.overlapX, body.overlapY);
|
||||
body.reboundCheck(true, true, true);
|
||||
// body.setBlockFlag(body.blocked.left, body.blocked.right, body.blocked.up, body.blocked.down, body.overlapX, body.overlapY);
|
||||
// body.reboundCheck(true, true, true);
|
||||
|
||||
return true;
|
||||
|
||||
|
|
|
|||
|
|
@ -441,26 +441,31 @@ Phaser.Physics.Arcade.Body.prototype = {
|
|||
|
||||
this.updateBounds();
|
||||
|
||||
if (this.blocked.left && this.blockFlags[0] !== this.left)
|
||||
{
|
||||
this.blocked.left = false;
|
||||
}
|
||||
// if (this.blocked.left && this.blockFlags[0] !== this.left)
|
||||
// {
|
||||
// this.blocked.left = false;
|
||||
// }
|
||||
|
||||
if (this.blocked.right && this.blockFlags[1] !== this.right)
|
||||
{
|
||||
this.blocked.right = false;
|
||||
}
|
||||
// if (this.blocked.right && this.blockFlags[1] !== this.right)
|
||||
// {
|
||||
// this.blocked.right = false;
|
||||
// }
|
||||
|
||||
if (this.blocked.up && this.blockFlags[2] !== this.top)
|
||||
{
|
||||
this.blocked.up = false;
|
||||
}
|
||||
// if (this.blocked.up && this.blockFlags[2] !== this.top)
|
||||
// {
|
||||
// this.blocked.up = false;
|
||||
// }
|
||||
|
||||
if (this.blocked.down && this.blockFlags[3] !== this.bottom)
|
||||
{
|
||||
console.log('reset down block flag', this.blockFlags[3], this.bottom);
|
||||
this.blocked.down = false;
|
||||
}
|
||||
// if (this.blocked.down && this.blockFlags[3] !== this.bottom)
|
||||
// {
|
||||
// console.log('reset down block flag', this.blockFlags[3], this.bottom);
|
||||
// this.blocked.down = false;
|
||||
// }
|
||||
|
||||
this.blocked.left = false;
|
||||
this.blocked.right = false;
|
||||
this.blocked.up = false;
|
||||
this.blocked.down = false;
|
||||
|
||||
this.touching.none = true;
|
||||
this.touching.up = false;
|
||||
|
|
@ -485,25 +490,25 @@ Phaser.Physics.Arcade.Body.prototype = {
|
|||
if (left)
|
||||
{
|
||||
this.blockFlags[0] = this.left + x;
|
||||
console.log('left flag set to', this.blockFlags[0]);
|
||||
// console.log('left flag set to', this.blockFlags[0]);
|
||||
}
|
||||
else if (right)
|
||||
{
|
||||
this.blockFlags[1] = this.right + y;
|
||||
console.log('right flag set to', this.blockFlags[1]);
|
||||
// console.log('right flag set to', this.blockFlags[1]);
|
||||
}
|
||||
|
||||
if (up)
|
||||
{
|
||||
this.blockFlags[2] = this.top + y;
|
||||
// this.blockFlags[2] = this.top;
|
||||
console.log('up flag set to', this.blockFlags[2]);
|
||||
// console.log('up flag set to', this.blockFlags[2]);
|
||||
}
|
||||
else if (down)
|
||||
{
|
||||
this.blockFlags[3] = this.bottom + y;
|
||||
// this.blockFlags[3] = this.bottom;
|
||||
console.log('down flag set to', this.blockFlags[3]);
|
||||
// console.log('down flag set to', this.blockFlags[3]);
|
||||
}
|
||||
|
||||
},
|
||||
|
|
|
|||
|
|
@ -59,6 +59,11 @@ Phaser.Tile = function (layer, index, x, y, width, height) {
|
|||
*/
|
||||
this.properties = {};
|
||||
|
||||
/**
|
||||
* @property {boolean} walked - Has this tile been walked / turned into a poly?
|
||||
*/
|
||||
this.walked = false;
|
||||
|
||||
/**
|
||||
* @property {boolean} faceTop - Is the top of this tile an interesting edge?
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -925,6 +925,10 @@ Phaser.Utils.Debug.prototype = {
|
|||
this.context.arc(x, y, body.shape.r, 0, Math.PI * 2, false);
|
||||
this.context.stroke();
|
||||
this.context.closePath();
|
||||
|
||||
this.context.strokeStyle = 'rgb(0,0,255)';
|
||||
this.context.strokeRect(body.left, body.top, body.width, body.height);
|
||||
|
||||
this.stop();
|
||||
}
|
||||
else
|
||||
|
|
@ -953,6 +957,9 @@ Phaser.Utils.Debug.prototype = {
|
|||
this.context.fillRect(x + points[i].x - 2, y + points[i].y - 2, 5, 5);
|
||||
}
|
||||
|
||||
this.context.strokeStyle = 'rgb(0,0,255)';
|
||||
this.context.strokeRect(body.left, body.top, body.width, body.height);
|
||||
|
||||
this.stop();
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue