Position.ts

///<reference path="Driver.ts"/>

namespace Mankala {
    export var storeHouses = [6, 13];
    var svgNS = "http://www.w3.org/2000/svg";

    function createSVGRect(r: Rectangle) {
        var rect = document.createElementNS(svgNS, "rect");
        rect.setAttribute("x", r.x.toString());
        rect.setAttribute("y", r.y.toString());
        rect.setAttribute("width", r.width.toString());
        rect.setAttribute("height", r.height.toString());
        return rect;
    }

    function createSVGEllipse(r: Rectangle) {
        var ell = document.createElementNS(svgNS, "ellipse");
        ell.setAttribute("rx", (r.width / 2).toString());
        ell.setAttribute("ry", (r.height / 2).toString());
        ell.setAttribute("cx", (r.x + r.width / 2).toString());
        ell.setAttribute("cy", (r.y + r.height / 2).toString());
        return ell;
    }

    function createSVGEllipsePolar(angle: number, radius: number, tx: number, ty: number,
        cxo: number, cyo: number) {
        var ell = document.createElementNS(svgNS, "ellipse");
        ell.setAttribute("rx", radius.toString());
        ell.setAttribute("ry", (radius / 3).toString());
        ell.setAttribute("cx", cxo.toString());
        ell.setAttribute("cy", cyo.toString());
        var dangle = angle * (180 / Math.PI);
        ell.setAttribute("transform", "rotate(" + dangle + "," + cxo + "," + cyo + ") translate(" + tx +
                         "," + ty + ")");
        return ell;
    }

    function createSVGInscribedCircle(sq: Square) {
        var circle = document.createElementNS(svgNS, "circle");
        circle.setAttribute("r", (sq.len / 2).toString());
        circle.setAttribute("cx", (sq.x + (sq.len / 2)).toString());
        circle.setAttribute("cy", (sq.y + (sq.len / 2)).toString());
        return circle;
    }

    export class Position {
        constructor (public  seedCounts: number[], public startMove: number, public turn: number) { }
        public score() {
            var baseScore = this.seedCounts[storeHouses[1 - this.turn]] - this.seedCounts[storeHouses[this.turn]];
            var otherSpaces = homeSpaces[this.turn];
            var sum = 0;
            for (var k = 0, len = otherSpaces.length; k < len; k++) {
                sum += this.seedCounts[otherSpaces[k]];
            }
            if (sum == 0) {
                var mySpaces = homeSpaces[1 - this.turn];
                var mySum = 0;
                for (var j = 0, length = mySpaces.length; j < length; j++) {
                    mySum += this.seedCounts[mySpaces[j]];
                }

                baseScore -= mySum;
            }
            return baseScore;
        }

        public move(space: number, nextSeedCounts: number[], features: Features) {
            if ((space == storeHouses[0]) || (space == storeHouses[1])) {
                // can't move seeds in storehouse
                return false;
            }
            if (this.seedCounts[space] > 0) {
                features.clear();
                var len = this.seedCounts.length;
                for (var i = 0; i < len; i++) {
                    nextSeedCounts[i] = this.seedCounts[i];
                }
                var seedCount = this.seedCounts[space];
                nextSeedCounts[space] = 0;
                var nextSpace = (space + 1) % 14;

                while (seedCount > 0) {
                    if (nextSpace == storeHouses[this.turn]) {
                        features.seedStoredCount++;
                    }
                    if ((nextSpace != storeHouses[1 - this.turn])) {
                        nextSeedCounts[nextSpace]++;
                        seedCount--;
                    }
                    if (seedCount == 0) {
                        if (nextSpace == storeHouses[this.turn]) {
                            features.turnContinues = true;
                        } else if ((nextSeedCounts[nextSpace] == 1) &&
                                   (nextSpace >= firstHomeSpace[this.turn]) &&
                                   (nextSpace <= lastHomeSpace[this.turn])) {
                                       // capture
                            var capturedSpace = capturedSpaces[nextSpace];
                            if (capturedSpace >= 0) {
                                features.spaceCaptured = capturedSpace;
                                features.capturedCount = nextSeedCounts[capturedSpace];
                                nextSeedCounts[capturedSpace] = 0;
                                nextSeedCounts[storeHouses[this.turn]] += features.capturedCount;
                                features.seedStoredCount += nextSeedCounts[capturedSpace];
                            }
                        }
                    }
                    nextSpace = (nextSpace + 1) % 14;
                }
                return true;
            }
            else {
                return false;
            }
        }
    }

    export class SeedCoords {
        constructor(public tx: number, public ty: number, public angle: number) { }
    }

    export class DisplayPosition extends Position {
        constructor (seedCounts: number[], startMove: number, turn: number) { 
            super(seedCounts, startMove, turn);

            for (var i = 0; i < seedCounts.length; i++) {
                this.config[i] = [];
            }
        }
        public config: SeedCoords[][] = [];


        private seedCircleRect(rect: Rectangle, seedCount: number, board: Element, seed: number, circleClick: EventListener) {
            var coords = this.config[seed];
            var sq = rect.inner(0.95).square();
            var cxo = (sq.width / 2) + sq.x;
            var cyo = (sq.height / 2) + sq.y;
            var seedNumbers = [5, 7, 9, 11];
            var ringIndex = 0;
            var ringRem = seedNumbers[ringIndex];
            var angleDelta = (2 * Math.PI) / ringRem;
            var angle = angleDelta;
            var seedLength = sq.width / (seedNumbers.length << 1);
            var crMax = sq.width / 2 - (seedLength / 2);
            var pit = createSVGInscribedCircle(sq);
            if (seed < 7) {
                pit.setAttribute("fill", "brown");
                if (circleClick != null) {
                    pit.addEventListener('click', circleClick);
                }
            } else {
                pit.setAttribute("fill", "saddlebrown");
            }
            board.appendChild(pit);
            var seedsSeen = 0;
            while (seedCount > 0) {
                if (ringRem == 0) {
                    ringIndex++;
                    ringRem = seedNumbers[ringIndex];
                    angleDelta = (2 * Math.PI) / ringRem;
                    angle = angleDelta;
                }
                var tx: number;
                var ty: number;
                var tangle = angle;
                if (coords.length > seedsSeen) {
                    tx = coords[seedsSeen].tx;
                    ty = coords[seedsSeen].ty;
                    tangle = coords[seedsSeen].angle;
                } else {
                    tx = (Math.random() * crMax) - (crMax / 3);
                    ty = (Math.random() * crMax) - (crMax / 3);
                    coords[seedsSeen] = new SeedCoords(tx, ty, angle);
                }
                var ell = createSVGEllipsePolar(tangle, seedLength, tx, ty, cxo, cyo);
                board.appendChild(ell);
                angle += angleDelta;
                ringRem--;
                seedCount--;
                seedsSeen++;
            }
        }

        public toCircleSVG(game: Game) {
            var seedDivisions = 14;
            var board = document.createElementNS(svgNS, "svg");
            var w = window.innerWidth - 40;
            var h = window.innerHeight - 40;
            var boardRect = new Rectangle(0, 0, w, h);
            board.setAttribute("width", w.toString());
            board.setAttribute("height", h.toString());
            var whole = createSVGRect(boardRect);
            whole.setAttribute("fill", "tan");
            board.appendChild(whole);
            //var labPlayLab=boardRect.proportionalSplitVert(20,760,20);
            //var playSurface=labPlayLab[1];
            var playSurface = boardRect;
            var storeMainStore = playSurface.proportionalSplitHoriz(8, 48, 8);
            var mainPair = storeMainStore[1].subDivideVert(2);
            var playerRects = [mainPair[0].subDivideHoriz(6),
                               mainPair[1].subDivideHoriz(6)];
            // reverse top layer because storehouse on left
            for (var k = 0; k < 3; k++) {
                var temp = playerRects[0][k];
                playerRects[0][k] = playerRects[0][5 - k];
                playerRects[0][5 - k] = temp;
            }
            var storehouses = [storeMainStore[0], storeMainStore[2]];
            var playerSeeds = this.seedCounts.length >> 1;
            for (var i = 0; i < 2; i++) {
                var player = playerRects[i];
                var storehouse = storehouses[i];
                var r: Rectangle;
                for (var j = 0; j < playerSeeds; j++) {
                    var seed = (i * playerSeeds) + j;
                    var seedCount = this.seedCounts[seed];
                    if (j == (playerSeeds - 1)) {
                        r = storehouse;
                    } else {
                        r = player[j];
                    }
                    if (game != null) {
                        this.seedCircleRect(r, seedCount, board, seed,
                                       function(seed: number) {
                                           return function(evt: Event) {
                                               game.humanMove(seed);
                                           }
                                       }(seed));
                    }
                    else {
                        this.seedCircleRect(r, seedCount, board, seed, null);
                    }
                    if (seedCount == 0) {
                        // clear
                        this.config[seed] = [];
                    }
                }
            }
            return board;
        }
    }
}