HU/dxDrawLine

Ez a function rajzol egy 2D-s vonalat a képernyőre - egy keretre. Ezt a onClientRender segítségével együtt kell használni annak érdekében, hogy folyamatosan jelenjen meg.

Szintaxis

bool dxDrawLine ( int startX, int startY, int endX, int endY, int color [, float width = 1.0, bool postGUI = false ] )

Kötelező paraméterek

startX: An integer representing the absolute start X position of the line, represented by pixels on the screen.
startY: An integer representing the absolute start Y position of the line, represented by pixels on the screen.
endX: An integer representing the absolute end X position of the line, represented by pixels on the screen.
endY: An integer representing the absolute end Y position of the line, represented by pixels on the screen.
color: An integer of the hex color, produced using tocolor or 0xAARRGGBB (AA = alpha, RR = red, GG = green, BB = blue).

Tetszőleges paraméterek

NOTE: When using optional arguments, you might need to supply all arguments before the one you wish to use. For more information on optional arguments, see optional arguments.

width: The width/thickness of the line
postGUI: A bool representing whether the line should be drawn on top of or behind any ingame GUI (rendered by CEGUI).

Visszatérési érték

Visszatérési értéke true, ha a művelet sikeres, egyébként false.

Példa

Ez a példa rajzol egy 'X'-et a képernyőre.

local screenWidth, screenHeight = guiGetScreenSize() 
local lineColor = tocolor(255, 0, 0)
function drawLinesAcrossScreen()
	dxDrawLine(0, 0, screenWidth, screenHeight, lineColor)
	dxDrawLine(screenWidth, 0, 0, screenHeight, lineColor)
end
addEventHandler("onClientRender", root, drawLinesAcrossScreen)

This example draws a couple of circles

function drawCircle( x,y, radius, color )
    local numPoints = math.floor( math.pow( radius, 0.4 ) * 5 )     -- Calculate number of points to make it look good
    local step = math.pi * 2 / numPoints
    local sx,sy
    for p=0,numPoints do
        local ex = math.cos ( p * step ) * radius
        local ey = math.sin ( p * step ) * radius
        if sx then
            dxDrawLine( x+sx, y+sy, x+ex, y+ey, color )
        end
        sx,sy = ex,ey
    end
end

addEventHandler( "onClientRender", root,
    function()
        drawCircle( 350, 350, 10, tocolor(255,0,255) );
        drawCircle( 350, 350, 50, tocolor(255,0,255) );
    end
)

Lásd még

ADDED/UPDATED IN VERSION 1.6.0 r22271:

dxDrawModel3D