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local VIRTUAL_WIDTH, VIRTUAL_HEIGHT = 16*10*5, 9*10*5
local CANVAS_PADDING = 6
DEBUG = false
local CANVAS_WIDTH = VIRTUAL_WIDTH + CANVAS_PADDING
local CANVAS_HEIGHT = VIRTUAL_HEIGHT + CANVAS_PADDING
local WORLD_TO_CANVAS = 3
local scale = 1
local finalScale = 1
local offsetX, offsetY = 0, 0
local dpiScale = 1
local canvas = nil
local smoothCameraShader = nil
local shaderEnabled = true
local cameraModule = require("camera")
local camera = nil
local fonts = require("fonts")
local HUD = require("hud")
local hud = nil
local previousState = nil
local currentState = "game"
local currentMapPath = "assets/maps/tilemap.lua"
local currentTilesets = {
tileset = { path = "assets/maps/tileset.png", tilewidth = 16, tileheight = 16 },
misc = { path = "assets/maps/simples_pimples.png", tilewidth = 16, tileheight = 16 },
}
local world = nil
local states = {
game = {},
menu = {},
settings = {},
hud = {},
}
local function recalcScale(w, h)
dpiScale = (love.window.getDPIScale and love.window.getDPIScale()) or 1
scale = math.max(1, math.floor(math.min(w / VIRTUAL_WIDTH, h / VIRTUAL_HEIGHT) / dpiScale))
finalScale = scale * dpiScale
offsetX = math.floor((w - VIRTUAL_WIDTH * finalScale) / 2)
offsetY = math.floor((h - VIRTUAL_HEIGHT * finalScale) / 2)
end
function states.game.load()
local World = require("world")
world = World:new()
world:load(currentMapPath, currentTilesets)
local target = world:getPlayer() or { x = 0, y = 0, width = 16, height = 16 }
camera = cameraModule:new(target, VIRTUAL_WIDTH/2, VIRTUAL_HEIGHT/2, true, WORLD_TO_CANVAS)
world:setCamera(camera)
hud = HUD:new()
end
function states.game.update(dt)
if world then world:update(dt) end
end
function states.game.draw()
if camera then camera:set() end
if world then world:draw() end
if camera then camera:unset() end
end
function states.menu.load()
camera = nil
world = nil
end
function states.menu.update(dt) end
function states.menu.draw()
love.graphics.print("Menu (state machine ready)", 10, 10)
end
function states.settings.load()
camera = nil
world = nil
end
function states.settings.update(dt) end
function states.settings.draw()
love.graphics.print("Settings", 10, 10)
end
function states.hud.update(dt)
if hud then
local w, h = love.graphics.getWidth(), love.graphics.getHeight()
hud:update(dt, w, h, finalScale)
end
end
function states.hud.draw()
if camera then camera:set() end
if world then world:draw() end
if camera then camera:unset() end
end
function love.load()
love.graphics.setDefaultFilter("nearest", "nearest")
love.window.setTitle("Openformer")
fonts.load()
love.graphics.setFont(fonts.default)
canvas = love.graphics.newCanvas(CANVAS_WIDTH, CANVAS_HEIGHT)
canvas:setFilter("nearest", "nearest")
local ok, shader = pcall(love.graphics.newShader, "shaders/smooth_camera.glsl")
smoothCameraShader = ok and shader or nil
if not smoothCameraShader then
print("Warning: smooth_camera.glsl not loaded, using fallback (no sub-pixel offset)")
end
local w, h = love.graphics.getWidth(), love.graphics.getHeight()
recalcScale(w, h)
love.mouse.setVisible(false)
local state = states[currentState]
if state and state.load then state.load() end
end
function love.resize(w, h)
recalcScale(w, h)
if canvas then canvas:release() end
canvas = love.graphics.newCanvas(CANVAS_WIDTH, CANVAS_HEIGHT)
canvas:setFilter("nearest", "nearest")
end
function love.update(dt)
local state = states[currentState]
if state and state.update then state.update(dt) end
end
function love.keypressed(key, scancode, isrepeat)
if key == "f11" then
love.window.setFullscreen(not love.window.getFullscreen(), "desktop")
end
if key == "f1" and DEBUG then
shaderEnabled = not shaderEnabled
end
if key == "tab" and not isrepeat then
if currentState == "game" then
previousState = currentState
currentState = "hud"
love.mouse.setVisible(true)
elseif currentState == "hud" then
currentState = previousState or "game"
previousState = nil
love.mouse.setVisible(false)
end
end
if (key == "space" or key == "up" or key == "w") and not isrepeat then
if currentState == "game" then
local player = world and world:getPlayer()
if player then player:jump() end
end
end
end
function love.mousepressed(x, y, button)
if currentState == "hud" and hud then
hud:mousepressed(x, y, button)
end
end
function love.draw()
love.graphics.setCanvas(canvas)
love.graphics.clear()
love.graphics.push()
local state = states[currentState]
if state and state.draw then state.draw() end
love.graphics.pop()
love.graphics.setCanvas()
love.graphics.clear()
local drawX = offsetX - (CANVAS_PADDING * finalScale) / 2
local drawY = offsetY - (CANVAS_PADDING * finalScale) / 2
local subDx, subDy = 0, 0
if world and world.camera and world.camera.getSubPixelOffset then
subDx, subDy = world.camera:getSubPixelOffset()
end
local camScale = (world and world.camera and world.camera._lastScale) or 2
local uvOffsetX = subDx * camScale / CANVAS_WIDTH
local uvOffsetY = subDy * camScale / CANVAS_HEIGHT
if shaderEnabled and smoothCameraShader and (subDx ~= 0 or subDy ~= 0) then
smoothCameraShader:send("offset", { uvOffsetX, uvOffsetY })
love.graphics.setShader(smoothCameraShader)
end
love.graphics.draw(canvas, math.floor(drawX), math.floor(drawY), 0, finalScale, finalScale)
if shaderEnabled and smoothCameraShader then
love.graphics.setShader()
end
if currentState == "hud" and hud then
hud:draw()
end
if DEBUG then
local fps = love.timer.getFPS()
local shaderLoaded = smoothCameraShader ~= nil
local shaderApplied = shaderEnabled and shaderLoaded and (subDx ~= 0 or subDy ~= 0)
local shaderName = shaderLoaded and "smooth_camera.glsl" or "none (fallback)"
local shaderState = not shaderLoaded and "unavailable"
or not shaderEnabled and "disabled [F1]"
or shaderApplied and "active"
or "idle"
local shaderLine = "shader: " .. shaderName .. " (" .. shaderState .. ")"
love.graphics.setColor(0, 0, 0, 0.5)
love.graphics.rectangle("fill", 4, 4, 280, 36)
love.graphics.setColor(1, 1, 0, 1)
love.graphics.print("FPS: " .. fps, 8, 8)
love.graphics.print(shaderLine, 8, 22)
love.graphics.setColor(1, 1, 1, 1)
end
end
return nil
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