dcearth/main.lua

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Lua
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local love = assert( love, "This tool requires LOVE: love2d.org" )
local map = require 'map'
local SAVEDIRECTORY = "out/"
local Camera = require 'camera'
local wasKeyPressed
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function love.load()
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local lfs = assert( love.filesystem )
lfs.setIdentity( "dcearth", false )
assert( lfs.createDirectory( SAVEDIRECTORY.."data/earth" ))
assert( lfs.createDirectory( SAVEDIRECTORY.."data/graphics" ))
map.load()
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love.graphics.setNewFont( 12, "mono" )
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end
function love.update( dt )
local tx, ty = 0, 0
local moveCamera = false
if love.keyboard.isScancodeDown( "w" ) then moveCamera = true; ty = ty + 1 end
if love.keyboard.isScancodeDown( "a" ) then moveCamera = true; tx = tx - 1 end
if love.keyboard.isScancodeDown( "s" ) then moveCamera = true; ty = ty - 1 end
if love.keyboard.isScancodeDown( "d" ) then moveCamera = true; tx = tx + 1 end
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if love.keyboard.isScancodeDown( "q" ) then Camera.Zoom( true ) end
if love.keyboard.isScancodeDown( "e" ) then Camera.Zoom( false ) end
if moveCamera then Camera.Translate( tx, ty ) end
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end
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function love.draw()
love.graphics.push( "all" )
map.draw()
love.graphics.pop()
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--Status bar.
local x, y = love.mouse.getPosition()
local wx, wy = Camera.GetWorldCoordinate( x, y )
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local bx, by = Camera.GetBitmapCoordinate( x, y )
local h = love.graphics.getHeight() - 30
love.graphics.setColor( 0.2, 0.1, 0.1, 0.5 )
love.graphics.rectangle( "fill", 0, h, love.graphics.getWidth() / 2, 30 )
love.graphics.setColor( 1, 1, 1, 1 )
love.graphics.rectangle( "line", 0, h, love.graphics.getWidth() / 2, 30 )
love.graphics.print(("SCREEN\t%d\t%d\nWORLD \t%5.2f\t%5.2f"):format(x, y, wx, wy), 0, h)
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love.graphics.print(("BITMAP\t%5.2f\t%5.2f"):format(bx, by), 200, h )
--Edit box.
love.graphics.rectangle( "line", love.graphics.getWidth() / 2, h, love.graphics.getWidth() / 2, 30 )
if map.cities.selectedCity then
local c = map.cities.selectedCity
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love.graphics.setColor( 0.2, 0.1, 0.1, 0.5 )
love.graphics.rectangle( "fill", 0, 0, 150 ,100 )
love.graphics.setColor( 1, 1, 1, 1 )
love.graphics.rectangle( "line", 0, 0, 150 ,100 )
love.graphics.setColor( 1.2, 1.1, 1.1, 1.5 )
love.graphics.print( ("NAME: %s\nX: %3.2f\nY: %3.2f\nPOP: %d\nCAPITAL: %s\nCOUNTRY: %s"):format(c.name, c.x, c.y, c.pop, tostring(c.capital), c.country), 0, 0 )
end
end
function love.resize(w, h)
Camera.Resize( w, h )
end
function love.wheelmoved(x, y)
Camera.Zoom( (y > 0) and true or false )
end
function love.mousepressed( x, y, button, istouch, presses )
local wx, wy = Camera.GetWorldCoordinate( x, y )
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if button == 1 then
map.cities.lockSelection()
else
map.cities.unlockSelection()
end
print( ("MOUSE\tx %f\ty %f\twx %f\twy %f"):format(x, y, wx, wy) )
end
function love.mousemoved( x, y, dx, dy, istouch )
map.cities.selectNearestCity( Camera.GetWorldCoordinate( x, y ) )
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end
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local function ToggleVisibility( layer )
if not layer then return end
local ml
if map[layer] then ml = map[layer] end
if map.territory[layer] then ml = map.territory[layer] end
assert( ml )
ml.visible = not( ml.visible )
print( layer, ml.visible )
end
local layerVisibilityKeybinds = {
["1"] = "africa",
["2"] = "europe",
["3"] = "northamerica",
["4"] = "southamerica",
["5"] = "southasia",
["6"] = "russia",
["7"] = "sailable",
["8"] = "coastlines",
["9"] = "coastlinesLow",
["0"] = "international",
["-"] = "cities"
}
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function love.keypressed(key)
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ToggleVisibility( layerVisibilityKeybinds[key] )
if key == "l" then
-- To open a file or folder, "file://" must be prepended to the path.
love.system.openURL("file://"..love.filesystem.getSaveDirectory())
end
wasKeyPressed = true
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end