love.graphics.line
Draws lines between points.
Function
Synopsis
love.graphics.line( x1, y1, x2, y2, ... )
Arguments
number x1
- The position of first point on the x-axis.
number y1
- The position of first point on the y-axis.
number x2
- The position of second point on the x-axis.
number y2
- The position of second point on the y-axis.
number ...
- You can continue passing point positions to draw a polyline.
Returns
Nothing.
Function
Synopsis
love.graphics.line( points )
Arguments
table points
- A table of point positions, as described above.
Returns
Nothing.
Examples
Draw the outline of a simple trapezoid
function love.draw()
love.graphics.line(200,50, 400,50, 500,300, 100,300, 200,50) -- last pair is a repeat to complete the trapezoid
end
Draw a line from the center of the screen to the mouse pointer
function love.draw()
local mx, my = love.mouse.getPosition()
local windowWidth, windowHeight = love.graphics.getDimensions()
love.graphics.line(windowWidth/2, windowHeight/2, mx, my)
end
Draw a zigzag line using a table
local zigzagLine = {100,100, 200,200, 300,100, 400,200}
function love.draw()
love.graphics.line(zigzagLine)
end
Generate and draw a grid
local cellSize = 30 -- Width and height of cells.
local gridLines = {}
local windowWidth, windowHeight = love.graphics.getDimensions()
-- Vertical lines.
for x = cellSize, windowWidth, cellSize do
local line = {x, 0, x, windowHeight}
table.insert(gridLines, line)
end
-- Horizontal lines.
for y = cellSize, windowHeight, cellSize do
local line = {0, y, windowWidth, y}
table.insert(gridLines, line)
end
function love.draw()
love.graphics.setLineWidth(2)
for i, line in ipairs(gridLines) do
love.graphics.line(line)
end
end
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