No errors but not working: Dragging&Selecting
Posted: Tue Aug 20, 2013 10:51 pm
Hi! I think this is the second time I ask help here just because I suck at programming but I'm starting to get it. The thing is that I made a dragging with the mouse and selection "thing":
The bad thing comes when I try to select actual objects like the little square I made. I'm not sure if all the if statements I did for checking if the selection box that covers the X, Y, X+Width and Y+Height of the cube are correct but it should on my understanding.
So! This is my code:
If you happen to know a better way of coding this let me know! Here's the .love file: https://www.dropbox.com/s/5hqu4zlxmkpag2e/Dragging.love
Also: I thought that if the selection square has negative numbers for the width and the height it might couse some problems, any idea? Thanks for spending your time helping me!
The bad thing comes when I try to select actual objects like the little square I made. I'm not sure if all the if statements I did for checking if the selection box that covers the X, Y, X+Width and Y+Height of the cube are correct but it should on my understanding.
So! This is my code:
Code: Select all
--Hello
--//Functions
function love.load()
print("Hi there! Console talking! Wassup?")
--print(npcs[1].X)
--//Declaring some variables
npcNumber = 1
mouseX = love.mouse.getX()
mouseY = love.mouse.getY()
oldMouseX = 0
oldMouseY = 0
selectionX = 0
selectionY = 0
selection = false
selected = false
--//Making some entities! :D
npc1 = {}
npc1.X = math.random(100,900) --RandomGenerator:random(100,900)
npc1.Y = math.random(100,500) --RandomGenerator:random(100,500)
npc1.Height = 16
npc1.Width = 16
npc1.mode = "fill"
--npc1.image = npcSkinImage
npcs = {npc1}
end
--[[function love.keypressed(key)
end]]--
function love.mousepressed(x,y,button)
if button == "l" then
oldMouseX = love.mouse.getX()
oldMouseY = love.mouse.getY()
print("Left button pressed")
if selection == false then
selection = true
end
if selection == true and npcs[1].X > oldMouseX and npcs[1].X + npcs[1].Width < oldMouseX + selectionX and npcs[1].Y > oldMouseY and npcs[1].Y + npcs[1].Height < oldMouseY + selectionY then
print("One NPC selected")
if selected == false then
selected = true
else
selected = true
end
end
end
end
function love.mousereleased(x,y,button)
if button == "l" then
if selection == true then
selection = false
end
end
end
function love.draw()
love.graphics.print("NPCs Number: " .. npcNumber,0,0)
love.graphics.print("Mouse X: " .. mouseX,0,10)
love.graphics.print("Mouse Y: " .. mouseY,0,20)
love.graphics.print("Old MouseX: " .. oldMouseX,0,30)
love.graphics.print("Old MouseY: " .. oldMouseY,0,40)
love.graphics.print("SquareX: " .. npcs[1].X,0,50)
love.graphics.print("SquareY: " .. npcs[1].Y,0,60)
love.graphics.print("Selection: " .. tostring(selection),0,70)
love.graphics.print("SelectionX : " .. selectionX,0,80)
love.graphics.print("SelectionY : " .. selectionY,0,90)
love.graphics.print("Selected: " .. tostring(selected),0,100)
if selected == true then
love.graphics.setColor(255,0,0,255)
else
love.graphics.setColor(255,255,255,255)
end
love.graphics.rectangle(npcs[1].mode,npcs[1].X,npcs[1].Y,npcs[1].Width,npcs[1].Height)
if selection == true then
love.graphics.setColor(0,0,255,100)
love.graphics.rectangle("fill",oldMouseX,oldMouseY,selectionX,selectionY)
end
love.graphics.setColor(255,255,255,255) -- Back to its normal colors
end
function love.update()
mouseX = love.mouse.getX()
mouseY = love.mouse.getY()
selectionX = mouseX - oldMouseX
selectionY = mouseY - oldMouseY
endAlso: I thought that if the selection square has negative numbers for the width and the height it might couse some problems, any idea? Thanks for spending your time helping me!
