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Improve function to create a new graph based on data

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The random function is now seeded properly and uses the x, y, w, and h
parameters passed to the function to determine in what range to randomly
place the nodes.
This commit is contained in:
Robert Machmer 2015-12-22 02:51:32 +01:00
parent fd957a3881
commit 1ad54dd376
1 changed files with 14 additions and 4 deletions
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18
Graph.lua
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@ -14,15 +14,25 @@ function Graph.new()
local center = Node.new( 'center ', love.graphics.getWidth() * 0.5, love.graphics.getHeight() * 0.5);
function self:init( table )
math.randomseed(120123091239581834213143141);
---
-- Creates a new graph based on the information passed via the table
-- parameter. It creates all nodes and connects them via edges.
-- @param table - A table containing information about nodes and edges.
-- @param x - The minimum x value to use when randomly spawning nodes.
-- @param y - The minimum y value to use when randomly spawning nodes.
-- @param w - The maximum x value to use when randomly spawning nodes.
-- @param h - The maximum y value to use when randomly spawning nodes.
--
function self:create( table, x, y, w, h )
math.randomseed( os.time() );
for _, id in pairs( table.nodes ) do
self:addNode( Node.new( id, math.random(100, 800), math.random(100, 400) ) );
local rx, ry = math.random( x, w ), math.random( y, h );
self:addNode( Node.new( id, rx, ry ));
end
for _, edge in pairs( table.edges ) do
self:addEdge( nodes[edge[1]], nodes[edge[2]] );
self:addEdge( nodes[edge.origin], nodes[edge.target] );
end
end