Homebrew [Release] - LövePotion - LÖVE API for 3DS Homebrew - BETA

[joshjosh100]

Yes I do, do you know if its a specific one of the port libs so i can manually install it?

 

[VideahGams]

Yes I do, do you know if its a specific one of the port libs so i can manually install it?

Freetype seems to be the one causing the problem.

 

[joshjosh100]

so i fixed the problem( my portlibs were inside a folder in the libctru when i installed them through the command line), but then another problem popped up

C:\Users\joshjosh100\Desktop\rit_lua_player_fighting_game\lpp-3ds-master\LovePot
ion-master\LovePotion-master>make
linking LovePotion-master.elf
c:/devkitpro/devkitarm/bin/../lib/gcc/arm-none-eabi/4.9.2/../../../../arm-none-e
abi/bin/ld.exe: cannot find -lpng
collect2.exe: error: ld returned 1 exit status
make[1]: *** [/c/Users/joshjosh100/Desktop/rit_lua_player_fighting_game/lpp-3ds-
master/LovePotion-master/LovePotion-master/LovePotion-master.elf] Error 1
make: *** [build] Error 2

its not letting me build the .elf,.3dsx, or the smdh any idea what "-lpng" is?

 

[VideahGams]

so i fixed the problem( my portlibs were inside a folder in the libctru when i installed them through the command line), but then another problem popped up

C:\Users\joshjosh100\Desktop\rit_lua_player_fighting_game\lpp-3ds-master\LovePot
ion-master\LovePotion-master>make
linking LovePotion-master.elf
c:/devkitpro/devkitarm/bin/../lib/gcc/arm-none-eabi/4.9.2/../../../../arm-none-e
abi/bin/ld.exe: cannot find -lpng
collect2.exe: error: ld returned 1 exit status
make[1]: *** [/c/Users/joshjosh100/Desktop/rit_lua_player_fighting_game/lpp-3ds-
master/LovePotion-master/LovePotion-master/LovePotion-master.elf] Error 1
make: *** [build] Error 2

its not letting me build the .elf,.3dsx, or the smdh any idea what "-lpng" is?

libpng

 

[CKlidify]

Is it possible or will it be possible to make a game spanning across both the top and bottom screens?

 

[VideahGams]

Is it possible or will it be possible to make a game spanning across both the top and bottom screens?

You can already do that.
Setting the screen applies to the draw calls following it, until you change it again.

for example:

function love.draw()

	love.graphics.setScreen("top")
	love.graphics.print("This will draw on the top screen!", 0, 0)

	love.graphics.setScreen("bottom")
	love.graphics.print("This will draw on the bot screen!", 0, 0)
	love.graphics.print("This is still on the bot screen!", 0, 20)

	love.graphics.setScreen("top")
	love.graphics.print("Now back to top!", 0, 20)
	
end

Gives us this:

 

[CKlidify]

-snip-

nonono, I mean like the 3ds browser where it's 1 thing spanning across both screens as if it was one big screen

 

[VideahGams]

nonono, I mean like the 3ds browser where it's 1 thing spanning across both screens as if it was one big screen

Ah, well you can just handle the drawing of that yourself for now using tricks, but I'll think about adding it as an option somehow.

 

[CKlidify]

Ah, well you can just handle the drawing of that yourself for now using tricks, but I'll think about adding it as an option somehow.

I'm not super experienced with lua so I think I'll wait for you to add that feature before I work on that project

 

[Jwiz33]

I am a noob in Love, but I want to start learning it(I know bits of LUA)
First of all, I found this sample code on an online tutorial, what would I do to make it run on a 3DS? I get a black screen when running it currently.

function love.load()
hero = {} -- new table for the hero
hero.x = 300    -- x,y coordinates of the hero
hero.y = 450
hero.speed = 100
end

function love.update(dt)
if love.keyboard.isDown("left") then
   hero.x = hero.x - hero.speed*dt
elseif love.keyboard.isDown("right") then
   hero.x = hero.x + hero.speed*dt
end
end

function love.draw()
-- let's draw some ground
love.graphics.setColor(0,255,0,255)
love.graphics.rectangle("fill", 0,465,800,150)

-- let's draw our hero
love.graphics.setColor(255,255,0,255)
love.graphics.rectangle("fill", hero.x,hero.y, 30,15)
end

Thanks for your help!

 

[VideahGams]

I am a noob in Love, but I want to start learning it(I know bits of LUA)
First of all, I found this sample code on an online tutorial, what would I do to make it run on a 3DS? I get a black screen when running it currently.

function love.load()
hero = {} -- new table for the hero
hero.x = 300    -- x,y coordinates of the hero
hero.y = 450
hero.speed = 100
end

function love.update(dt)
if love.keyboard.isDown("left") then
   hero.x = hero.x - hero.speed*dt
elseif love.keyboard.isDown("right") then
   hero.x = hero.x + hero.speed*dt
end
end

function love.draw()
-- let's draw some ground
love.graphics.setColor(0,255,0,255)
love.graphics.rectangle("fill", 0,465,800,150)

-- let's draw our hero
love.graphics.setColor(255,255,0,255)
love.graphics.rectangle("fill", hero.x,hero.y, 30,15)
end

Thanks for your help!

Your problem is that the ground and hero is being drawn off screen (The hero is being drawn at 300 pixels right, 450 pixels down. This is way higher than 3DS's resolution)

Here I've changed positions/sizes to fit 3DS's screen. I've also added indentation (which helps with readability)

function love.load()
   hero = {} -- new table for the hero
   hero.x = 20 -- x,y coordinates of the hero
   hero.y = 185
   hero.speed = 100
end

function love.update(dt)
   if love.keyboard.isDown("left") then
     hero.x = hero.x - hero.speed*dt
   elseif love.keyboard.isDown("right") then
     hero.x = hero.x + hero.speed*dt
   end
end

function love.draw()
   -- draw some ground
   love.graphics.setColor(0,255,0,255)
   love.graphics.rectangle("fill", 0, 200, love.graphics.getWidth(), 150)

   -- draw our hero
   love.graphics.setColor(255,255,0,255)
   love.graphics.rectangle("fill", hero.x,hero.y, 30,15)
end

 

[TheCruel]

I'm not super experienced with lua so I think I'll wait for you to add that feature before I work on that project

This is probably not a feature to be added. All you do it manage the object positioning yourself. If it goes off-screen from the bottom (y < 0) then you start drawing it to bottom of top screen. The hb menu is open source if you want to see how it does it...

https://github.com/smealum/3ds_hb_menu/blob/master/source/background.c#L67

 

[Jwiz33]

Your problem is that the ground and hero is being drawn off screen (The hero is being drawn at 300 pixels right, 450 pixels down. This is way higher than 3DS's resolution)

Here I've changed positions/sizes to fit 3DS's screen. I've also added indentation (which helps with readability)

function love.load()
   hero = {} -- new table for the hero
   hero.x = 20 -- x,y coordinates of the hero
   hero.y = 185
   hero.speed = 100
end

function love.update(dt)
   if love.keyboard.isDown("left") then
     hero.x = hero.x - hero.speed*dt
   elseif love.keyboard.isDown("right") then
     hero.x = hero.x + hero.speed*dt
   end
end

function love.draw()
   -- let's draw some ground
   love.graphics.setColor(0,255,0,255)
   love.graphics.rectangle("fill", 0, 200, love.graphics.getWidth(), 150)

   -- let's draw our hero
   love.graphics.setColor(255,255,0,255)
   love.graphics.rectangle("fill", hero.x,hero.y, 30,15)
end

Oh, that makes sense. Thanks!

 

[VideahGams]

This is probably not a feature to be added. All you do it manage the object positioning yourself. If it goes off-screen from the bottom (y < 0) then you start drawing it to bottom of top screen. The hb menu is open source if you want to see how it does it...

https://github.com/smealum/3ds_hb_menu/blob/master/source/background.c#L67

This was my thinking, but I might add something to help with it
(probably not though)

 

[Jwiz33]

One more question, how do I make the game exit on start?

-- some other code is right here
end
if love.keyboard.isDown("start") then
        love.event.quit()
    end
end

This doesn't work, it doesn't do anything when I press start

 

[VideahGams]

One more question, how do I make the game exit on start?

-- some other code is right here
end
if love.keyboard.isDown("start") then
        love.event.quit()
    end
end

This doesn't work, it doesn't do anything when I press start

Why is there 2 end's? And is this being ran in love.update(dt)?

 

[Jwiz33]

Why is there 2 end's? And is this being ran in love.update(dt)?

The example had 2 and yes.

 

[VideahGams]

The example had 2 and yes.

Can I see the full code?

 

[Jwiz33]

Can I see the full code?

I'll upload it tomorrow, I have to study for my exam. Thanks by the way

 

[pastaconsumer]

In theory, couldn't one port Mari0 (Portal+Super Mario Bros. coded in LÖVE) to the 3DS?