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;;;; Copyright (C) 2018 Jakob L. Kreuze, All Rights Reserved.
;;;;
;;;; This file is part of slime-the-world.
;;;;
;;;; slime-the-world is free software: you can redistribute it and/or modify it
;;;; under the terms of the GNU General Public License as published by the Free
;;;; Software Foundation, either version 3 of the License, or (at your option)
;;;; any later version.
;;;;
;;;; slime-the-world is distributed in the hope that it will be useful, but
;;;; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
;;;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
;;;; more details.
;;;;
;;;; You should have received a copy of the GNU General Public License along
;;;; with slime-the-world. If not, see <http://www.gnu.org/licenses/>.
(local camera (require :camera))
(local player (require :player))
(local slimeball (require :slimeball))
(local world (require :world))
(local music [(love.audio.newSource "music/girl_from_mars.xm" "stream")
(love.audio.newSource "music/key_generators.xm" "stream")
(love.audio.newSource "music/miafan2010_-_speed_chip.s3m" "stream")
(love.audio.newSource "music/october_chip.xm" "stream")
(love.audio.newSource "music/the_dim_dungeon.xm" "stream")
(love.audio.newSource "music/the_epic_chip.xm" "stream")])
(var current-music nil)
(fn update-music []
(when current-music
(: current-music :stop))
(let [index (math.random 1 (# music))]
(set current-music (. music index))
(: current-music :setVolume 0.5)
(: current-music :setLooping true)
(: current-music :play)))
(local map-order ["sandbox" "babysteps"])
(var screen-alpha 1)
(var welcome-message-y (- (: (love.graphics.getFont) :getHeight)))
(var welcome-message-timer 64)
(local welcome-message-goal-y (: (love.graphics.getFont) :getHeight))
(var current-player nil)
(var current-world nil)
(var current-camera nil)
(local spit-sfx (love.audio.newSource "sound/spit.wav" "static"))
(fn next-map []
(let [map-name (table.remove map-order 1)]
(when (~= nil map-name)
(update-music)
(set screen-alpha 1)
(set welcome-message-y (- (: (love.graphics.getFont) :getHeight)))
(set welcome-message-timer 64)
(set current-player (player.new))
(set current-world (world.new map-name current-player))
(set current-camera (camera.new current-world screen-width screen-height)))
(~= nil map-name)))
(next-map)
(fn draw-fade-in-mask []
(let [(r g b a) (love.graphics.getColor)]
(love.graphics.setColor 0 0 0 screen-alpha)
(love.graphics.rectangle "fill" 0 0 screen-width screen-height)
(love.graphics.setColor r g b a))
(when (< 0 screen-alpha)
(set screen-alpha (- screen-alpha 0.05))))
(fn draw-welcome-message []
(when (< 0 welcome-message-timer)
(let [msg (string.format "Welcome to %s" (. current-world :name))
x (/ (- screen-width (: (love.graphics.getFont) :getWidth msg)) 2)]
(love.graphics.print msg x welcome-message-y))
(when (< welcome-message-y welcome-message-goal-y)
(set welcome-message-y (+ welcome-message-y 1)))
(when (= welcome-message-y welcome-message-goal-y)
(set welcome-message-timer (- welcome-message-timer 1)))))
(fn draw [message]
(let [camera-x (. current-camera :x-pos)
camera-y (. current-camera :y-pos)]
(: current-world :draw camera-x camera-y screen-width screen-height))
(draw-welcome-message)
(draw-fade-in-mask))
(fn update [dt set-mode]
(: current-world :update dt)
(: current-player :update dt)
(let [(camera-x camera-y) (: current-camera :focus-on-object current-player dt)]
(tset current-camera :x-pos camera-x)
(tset current-camera :y-pos camera-y))
(when (= (. current-world :surfaces-slimed) (. current-world :surfaces-total))
(when (not (next-map))
(set-mode :credits))))
(fn keypressed [key set-mode]
(when (= key "x")
(: spit-sfx :play)
(: current-world :add-slimeball (slimeball.new current-player)))
(let [method (if (= key "right") :move-right
(= key "left") :move-left
(= key "up") :face-upwards
(= key "z") :jump)]
(when method
(: current-player method))))
(fn keyreleased [key set-mode]
(let [method (if (= key "right") :stop-right
(= key "left") :stop-left
(= key "up") :face-normal)]
(when method
(: current-player method))))
(fn click [])
(fn activate []
(update-music))
{:activate activate
:draw draw
:update update
:keypressed keypressed
:keyreleased keyreleased
:click click}
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