111 lines
3.1 KiB
Lua
111 lines
3.1 KiB
Lua
require "grid"
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require "point"
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require "line"
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function love.load()
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love.graphics.setLineStyle( Config.lineStyle )
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love.graphics.setLineWidth( Config.lineWidth )
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gameGrid = Grid:new( Point:new( 5, 5 ) )
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local line = Line:new(
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GridPoint:new( 1, 1 ),
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GridPoint:new( 3, 3 ),
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Color.red
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)
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gameGrid:push( line )
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local line1 = Line:new(
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GridPoint:new( 1, 5 ),
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GridPoint:new( 5, 2 ),
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Color.green
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)
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gameGrid:push( line1 )
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local line2 = Line:new(
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GridPoint:new( 2, 5 ),
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GridPoint:new( 5, 3 ),
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Color.blue
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)
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gameGrid:push( line2 )
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mouse = {
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x = 0,
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y = 0,
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pressed = false,
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lastPressed = false,
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startX = -1,
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startY = -1,
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dragged = false,
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lastLine = nil,
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lastPoint = nil,
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point = Point:new( 0, 0 )
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}
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end
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-- TODO: move input interactions into module
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-- TODO: fix collision with other line's endpoint
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function love.update( dt )
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mouse.x, mouse.y = love.mouse.getPosition()
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mouse.x = mouse.x + 1
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mouse.y = mouse.y + 1
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mouse.lastPoint = mouse.point
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mouse.lastPressed = pressed
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mouse.pressed = love.mouse.isDown( 1 )
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mouse.point = snapCoords( Point:new( mouse.x, mouse.y ) )
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if mouse.lastLine ~= nil then
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local pointsLen = #mouse.lastLine.points
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local lastLinePoint = mouse.lastLine.points[pointsLen]
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if vectorLength( mouse.point, lastLinePoint ) == 1
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and gameGrid:inBounds( mouse.point )
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and gameGrid:matchesLine( mouse.point, true ) == nil
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and not lastLinePoint:equals( mouse.lastLine.endpoint ) then
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mouse.lastLine:push( mouse.point )
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end
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end
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mouse.dragged = mouse.pressed
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and mouse.startX > 0
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and vectorLength(
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Point:new( mouse.x, mouse.y ),
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Point:new( mouse.startX, mouse.startY )
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) > Config.dragSensivity
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if not mouse.pressed and mouse.startX > 0 then
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mouse.startX = -1
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mouse.startY = -1
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mouse.lastLine = nil
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end
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if not mouse.lastPressed
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and mouse.pressed
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and mouse.startX < 0 then
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mouse.startX = mouse.x
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mouse.startY = mouse.y
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mouse.lastLine = gameGrid:matchesLine( mouse.point, false )
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end
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end
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function love.draw()
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gameGrid:draw()
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local text = string.format( "%d:%d global\n%d:%d local\n%d:%d from start", mouse.x, mouse.y, mouse.point.x, mouse.point.y, mouse.startX - mouse.x, mouse.startY - mouse.y )
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love.graphics.print( text, 64, 256 )
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if mouse.dragged then
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love.graphics.print( "drag", 64, 300 )
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end
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if mouse.lastLine ~= nil then
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love.graphics.print( tostring( mouse.lastLine ), 128, 300 )
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end
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end
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-- Returns local coords from global
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function snapCoords( point )
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local x = math.ceil( point.x / Config.cellSize )
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local y = math.ceil( point.y / Config.cellSize )
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return GridPoint:new( x, y )
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end
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function vectorLength( startpoint, endpoint )
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return math.sqrt( ( startpoint.x - endpoint.x ) ^ 2 + ( startpoint.y - endpoint.y ) ^ 2 )
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end
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