asp.net web api - Identify the starting point resource for REST service -
i creating asp.net web api service maze game.
- users should cells details in maze visualize maze in 2d plane. achieving using method
public list<cell> get() - user should details of cell giving cellid input. achieving using method
public cellrepresentation get(string id). note cellrepresentation used return hypermedia links using webapi.hal. these links represent target cells possible movements up, down, left , right.
now, need way communicate starting point cell users start game. [in following maze , cell “10” starting point]. rest based way send message?
controller
public class cellscontroller : apicontroller { public cellscontroller() { } //get cells in maze public list<cell> get() { maze m = new maze(); return m.getcells(); } //get specific cell public cellrepresentation get(string id) { maze m = new maze(); cell c = m.getcell(id); list<cell> possiblelists = m.getpossiblerelatedcells(c); cellrepresentation beerrep = new cellrepresentation(c, possiblelists); return beerrep; } } hal related classes
public class cellrepresentation : webapi.hal.representation { //cellid cell thecell; list<cell> possiblemovecells; public cellrepresentation(cell c, list<cell> possiblemovecells ) { thecell = c; this.possiblemovecells = possiblemovecells; } public override string rel { { return linktemplates.celllinks.cellentry.rel; } set { } } public override string href { { return linktemplates.celllinks.cellentry.createlink(new { id = thecell.cellid }).href; } set { } } protected override void createhypermedia() { foreach (cell relatedcell in possiblemovecells) { if (relatedcell.relativename == "up") { links.add(linktemplates.celllinks.uplink.createlink(new { id = relatedcell.cellid })); } if (relatedcell.relativename == "right") { links.add(linktemplates.celllinks.rightlink.createlink(new { id = relatedcell.cellid })); } if (relatedcell.relativename == "down") { links.add(linktemplates.celllinks.downlink.createlink(new { id = relatedcell.cellid })); } if (relatedcell.relativename == "left") { links.add(linktemplates.celllinks.leftlink.createlink(new { id = relatedcell.cellid })); } } } } public static class linktemplates { public static class celllinks { public static link cellentry { { return new link("self", "~/api/cells/{id}"); } } public static link uplink { { return new link("up", "~/api/cells/{id}"); } } public static link rightlink { { return new link("right", "~/api/cells/{id}"); } } public static link downlink { { return new link("down", "~/api/cells/{id}"); } } public static link leftlink { { return new link("left", "~/api/cells/{id}"); } } } } business classes
public class cell { public int xval { get; set; } public int yval { get; set; } public bool topiswall { get; set; } public bool rightiswall { get; set; } public bool bottomiswall { get; set; } public bool leftiswall { get; set; } public bool isstartcell { get; set; } public bool isextcell { get; set; } public string relativename { get; set; } //top, right, etc. public string cellid { { string characterid = xval.tostring() + yval.tostring(); return characterid; //example 10 } } } public class maze { list<cell> cells; public maze() { cells = createcells(); } public cell getfirtcell() { cell firstcell = null; foreach (cell c in cells) { if(c.isstartcell ) { firstcell = c; break; } } return firstcell; } public cell getcell(string cellid) { cell thecell = null; foreach (cell c in cells) { if (c.cellid == cellid) { thecell = c; break; } } return thecell; } public list<cell> getcells() { return cells; } public list<cell> getpossiblerelatedcells(cell inputcell) { list<cell> possiblecells = new list<cell>(); foreach (cell c in cells) { if (c.xval == inputcell.xval-1 && c.rightiswall == false && c.yval== inputcell.yval ) { //go left input cell c.relativename = "left"; possiblecells.add(c); } else if (c.xval == inputcell.xval + 1 && c.leftiswall == false && c.yval == inputcell.yval ) { //go right input cell c.relativename = "right"; possiblecells.add(c); } else if (c.yval == inputcell.yval - 1 && c.topiswall == false && c.xval == inputcell.xval ) { //go down input cell c.relativename = "down"; possiblecells.add(c); } else if (c.yval == inputcell.yval + 1 && c.bottomiswall == false && c.xval == inputcell.xval) { //go input cell c.relativename = "up"; possiblecells.add(c); } } return possiblecells; } public list<cell> createcells() { list<cell> cells = new list<cell>(); //cells = cell cell1 = new cell { xval = 0,yval = 0,topiswall = false,rightiswall = false,bottomiswall = true,leftiswall = true, relativename="self" }; cell cell2 = new cell { xval = 1,yval = 0,topiswall = true,rightiswall = false,bottomiswall = false,leftiswall = false, isstartcell = true, //--start relativename="self" }; cell cell3 = new cell { xval = 2,yval = 0,topiswall = false,rightiswall = false,bottomiswall = true,leftiswall = false, relativename="self" }; cell cell4 = new cell { xval = 3,yval = 0,topiswall = false,rightiswall = true,bottomiswall = true,leftiswall = false, relativename = "self" }; cell cell5 = new cell { xval = 0,yval = 1,topiswall = true,rightiswall = false,bottomiswall = false,leftiswall = true, relativename = "self" }; cell cell6 = new cell { xval = 0,yval = 0,topiswall = true,rightiswall = false,bottomiswall = false,leftiswall = false, relativename = "self" }; cell cell7 = new cell { xval = 1,yval = 1,topiswall = true,rightiswall = false,bottomiswall = true,leftiswall = false, relativename = "self" }; cell cell8 = new cell { xval = 2,yval = 1,topiswall = false,rightiswall = true,bottomiswall = false,leftiswall = false, relativename = "self" }; cell cell9 = new cell { xval = 3,yval = 1,topiswall = false,rightiswall = true,bottomiswall = false,leftiswall = true, relativename = "self" }; cell cell10 = new cell { xval = 2,yval = 2,topiswall = true,rightiswall = true,bottomiswall = false,leftiswall = true, relativename = "self" }; cell cell11 = new cell { xval = 3,yval = 2,topiswall = true,rightiswall = true,bottomiswall = false,leftiswall = true, relativename = "self" }; cell cell12 = new cell { xval = 3,yval = 3,topiswall = true,rightiswall = true,bottomiswall = false,leftiswall = false, isextcell = true, //--exit relativename = "self" }; cells.add(cell1); cells.add(cell2); cells.add(cell3); cells.add(cell4); cells.add(cell5); cells.add(cell6); cells.add(cell7); cells.add(cell8); cells.add(cell9); cells.add(cell10); cells.add(cell11); cells.add(cell12); return cells; } } maze
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