I'm releasing the first version of my 2D dreamcast engine Antiruins.
The engine backend is written in C and is pre-compiled, meaning you don't need the Dreamcast toolchain to use this tool.
Instead of C, the game code is written in Lua. Lua is a neat scripting language that is decently fast, has memory management, easy to learn, etc.
This greatly reduce compilation and debugging of the game and lets you iterate faster.
The engine currently supports:
* Texture loading using .dtex and .png files.
* Music streaming using CDDA audio.
* .wav sound effect.
* Loading/saving LUA table to a memory card.
* Displaying images in the VMU.
* Playing DreamRoQ video.
Currently supported but need better documentation/testing:
* Sprite atlas and sprite animation.
* Map loading.
A sample game looks like this:
Code: Select all
local gw = {}
local logo, sfx, bgm
local texX, texY = 320, 240
local realTime = 0
-- Game Create
function gw.create()
-- Loads a font from a file.
-- The font file is a texture atlas with 16x8 characters
-- The last argument means no font resizing.
local font = graphics.loadFont(findFile("assets/MonofontSmall.dtex"), 16, 8, 0)
-- Loads a texture from a file.
-- Find file will look for the file at /pc /rd / cd and /sd
-- It will also look for the file in the current game directory
logo = graphics.loadTexture(findFile("assets/logo.dtex"))
-- Loads a .wav file in the SPU memory. Mostly used for short sound and SFX.
sfx = audio.load(findFile("assets/login.wav"), "SFX")
-- Loads the first .wav file in the music folder.
bgm = audio.load(0, "STREAM")
-- Play the music at 200/254 volume and loop.
audio.play(bgm, 250, 1)
end
-- Game Update
function gw.update(dt)
realTime = realTime + dt
if input.getButton("START") then
exit()
end
if input.getButton("A") then
audio.play(sfx, 210)
end
-- Get the joystick of controller 1
local joy = input.getJoystick(1)
texX = texX + joy.x / 128.0
texY = texY + joy.y / 128.0
end
-- Game Render
function gw.render(dt)
graphics.setClearColor(0,0,0.5,1)
graphics.setDrawColor(1,0,0,1)
-- Arguments are: textureID, x, y, width, height, rotation
local texWidth = 128 + (math.sin(realTime) * 64)
local texHeight = 32 + (math.sin(realTime) * 16)
graphics.drawTexture(logo, texX, texY, texWidth, texHeight, realTime * 10)
graphics.setDrawColor(1,1,1,1)
graphics.print("DT: " .. dt, 20, 440)
end
function gw.free()
end
return gw
There are other fun stuff in there but I need to complete the documentation and clean up some of the code.
Feel free to inspect the lua folder to see all the function available.
You can read the documentation here
Here's the GitLab link
There is no license file for now, but consider this BSD-2.
