54 lines
1.3 KiB
Lua
54 lines
1.3 KiB
Lua
require "gridpoint"
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-- Line table, interactive game object
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-- NOTE: uses GridPoint
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Line = {}
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-- Factory function
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function Line:new( startpoint, endpoint, color )
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local line = {
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startpoint = startpoint,
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endpoint = endpoint,
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points = {
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startpoint
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},
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color = color
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}
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setmetatable( line, { __index = self } )
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return line
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end
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-- Push point to the end of points stack
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function Line:push( point )
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table.insert( self.points, point )
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end
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-- Pop point from points stack
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function Line:pop()
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return table.remove( self.points )
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end
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-- Draw line with connected dots
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function Line:draw()
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love.graphics.setColor( self.color )
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-- Draw start and end points (should look like rings)
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local sx, sy = self.startpoint:globalCoords()
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love.graphics.circle( "fill", sx, sy, Config.linePointRadius )
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local ex, ey = self.endpoint:globalCoords()
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love.graphics.circle( "fill", ex, ey, Config.linePointRadius )
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if #self.points == 1 then
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love.graphics.setColor( Color.white )
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return
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end
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-- Draw line
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local points = {}
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for _, point in ipairs( self.points ) do
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local x, y = point:globalCoords()
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table.insert( points, x )
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table.insert( points, y )
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end
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love.graphics.line( points )
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love.graphics.setColor( Color.white )
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end
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