2019-06-29 11:37:00 +00:00
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local debug = false
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2019-06-28 15:13:03 +00:00
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local cavern = {}
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2019-06-29 20:18:18 +00:00
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local tiletypes = {unknown = 0, empty = 1, wall = 2, orb = 3, slime = 4}
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2019-06-28 15:13:03 +00:00
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2019-06-28 18:53:56 +00:00
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local visibility_map = {}
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local remembered_cavern = {}
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2019-06-28 15:13:03 +00:00
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local spawn_x = nil
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local spawn_y = nil
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local directions = {up = 0, upleft = 1, left = 2, downleft = 3, down = 4, downright = 5, right = 6, upright = 7}
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local player_x = nil
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local player_y = nil
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local player_direction = nil
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2019-06-29 20:18:18 +00:00
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local slimes = {}
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2019-06-29 08:21:09 +00:00
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local last_key_pressed = nil
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local last_direction_moved = nil
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local move_repeat_counter = nil
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2019-06-29 12:46:17 +00:00
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local gamemodes = {normal = 0, won = 1, config = 2}
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2019-06-29 11:37:00 +00:00
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local game_mode = gamemodes.normal
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2019-06-29 12:46:17 +00:00
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local configuration_steps = {quit = -3, restart = -2, configure = -1}
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local configuration_step = nil
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2019-06-29 11:43:35 +00:00
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local direction_keys = {}
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direction_keys['i'] = directions.up
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direction_keys['u'] = directions.upleft
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direction_keys['j'] = directions.left
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direction_keys['m'] = directions.downleft
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direction_keys['k'] = directions.down
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direction_keys['.'] = directions.downright
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direction_keys['l'] = directions.right
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direction_keys['o'] = directions.upright
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2019-06-29 12:46:17 +00:00
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local control_keys = {quit = 'q', restart = 'r', configure = 'c'}
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2019-06-29 11:43:35 +00:00
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2019-06-29 12:18:55 +00:00
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local win_image = nil
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2019-06-28 15:13:03 +00:00
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-- ------------------------------------------------------------------
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-- Cavern generation
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-- ------------------------------------------------------------------
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function generateCavern()
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repeat
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cavern = {}
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cavern.width = 80
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cavern.height = 60
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-- Create a cavern.width × cavern.height array filled with tiletypes.unknown
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for x = 1, cavern.width do
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local list = {}
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for y = 1, cavern.height do
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table.insert(list, tiletypes.unknown)
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end
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table.insert(cavern, list)
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end
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-- Fill top and bottom edges with walls
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for x = 1, cavern.width do
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cavern[x][1] = tiletypes.wall
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cavern[x][cavern.height] = tiletypes.wall
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end
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-- Fill the left and right edges with walls
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for y = 1, cavern.height do
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cavern[1][y] = tiletypes.wall
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cavern[cavern.width][y] = tiletypes.wall
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end
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local queue = {}
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local size = 1
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-- Limit spawn to locations not on the edge walls
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spawn_x = math.random(2, cavern.width - 1)
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spawn_y = math.random(2, cavern.height - 1)
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cavern[spawn_x][spawn_y] = tiletypes.empty
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table.insert(queue, {x = spawn_x, y = spawn_y - 1})
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table.insert(queue, {x = spawn_x, y = spawn_y + 1})
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table.insert(queue, {x = spawn_x - 1, y = spawn_y})
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table.insert(queue, {x = spawn_x + 1, y = spawn_y})
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repeat
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2019-06-28 18:53:56 +00:00
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queue, size = stepCavernGeneration(queue, size)
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2019-06-28 15:13:03 +00:00
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until #queue == 0
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until size > 200
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end
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2019-06-28 18:53:56 +00:00
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function stepCavernGeneration(queue, size)
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2019-06-28 15:13:03 +00:00
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-- Tuning this parameter will change how open and cavernous vs. closed and corridory the
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-- cavern will be
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local spread_probability = 0.6
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local new_queue = {}
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local new_size = size
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for i, location in ipairs(queue) do
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if cavern[location.x][location.y] == tiletypes.unknown then
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-- We haven't covered this tile yet
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if math.random() < spread_probability then
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-- Empty
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cavern[location.x][location.y] = tiletypes.empty
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size = size + 1
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-- Up
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if location.y - 1 >= 1 then
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table.insert(new_queue, {x = location.x, y = location.y - 1})
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end
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-- Down
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if location.y + 1 <= cavern.height then
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table.insert(new_queue, {x = location.x, y = location.y + 1})
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end
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-- Left
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if location.x - 1 >= 1 then
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table.insert(new_queue, {x = location.x - 1, y = location.y})
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end
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-- Right
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if location.x + 1 <= cavern.width then
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table.insert(new_queue, {x = location.x + 1, y = location.y})
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end
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else
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-- Wall
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cavern[location.x][location.y] = tiletypes.wall
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end
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end
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end
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return new_queue, size
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end
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-- ------------------------------------------------------------------
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-- Spawning objects
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-- ------------------------------------------------------------------
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function spawnPlayer()
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player_x = spawn_x
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player_y = spawn_y
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-- Check what direction we can spawn the player
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2019-06-29 11:10:30 +00:00
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if passable(player_x, player_y + 1) then
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2019-06-28 15:13:03 +00:00
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-- There's space under, spawn facing up
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player_direction = directions.up
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2019-06-29 11:10:30 +00:00
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elseif passable(player_x + 1, player_y) then
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2019-06-28 15:13:03 +00:00
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-- There's space to the right, spawn facing left
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player_direction = directions.left
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2019-06-29 11:10:30 +00:00
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elseif passable(player_x - 1, player_y) then
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2019-06-28 15:13:03 +00:00
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-- There's space to the left, spawn facing right
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player_direction = directions.right
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2019-06-29 11:10:30 +00:00
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elseif passable(player_x, player_y - 1) then
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2019-06-28 15:13:03 +00:00
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-- There's space above, spawn facing down
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player_direction = directions.down
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else
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error("Cavern is weirdly generated and player cannot spawn")
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end
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end
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2019-06-29 08:45:13 +00:00
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function spawnOrb()
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local orb_x = nil
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local orb_y = nil
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repeat
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orb_x = math.random(2, cavern.width - 1)
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orb_y = math.random(2, cavern.height - 1)
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2019-06-29 20:18:18 +00:00
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until cavern[orb_x][orb_y] == tiletypes.empty
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2019-06-29 08:45:13 +00:00
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cavern[orb_x][orb_y] = tiletypes.orb
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end
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2019-06-29 20:18:18 +00:00
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function spawnSlimes()
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-- Try spawning 20 slimes, but if they don't hit any location then don't care
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2019-06-29 21:04:12 +00:00
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slimes = {}
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2019-06-29 20:18:18 +00:00
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for i = 1, 20 do
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local x = math.random(2, cavern.width - 1)
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local y = math.random(2, cavern.height - 1)
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if cavern[x][y] == tiletypes.empty then
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cavern[x][y] = tiletypes.slime
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table.insert(slimes, {x = x, y = y})
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end
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end
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end
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2019-06-28 18:53:56 +00:00
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-- ------------------------------------------------------------------
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-- Visibility
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-- ------------------------------------------------------------------
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function generateVisibilityMap()
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-- Start by creating a new visibility map (since we'll have to recompute everything anyways)
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visibility_map = {}
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for x = 1, cavern.width do
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local list = {}
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for y = 1, cavern.height do
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table.insert(list, false)
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end
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table.insert(visibility_map, list)
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end
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-- Handle visibility from the head
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local queue = {}
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2019-06-28 20:35:17 +00:00
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visibility_map[player_x][player_y] = true
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2019-06-28 18:53:56 +00:00
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if player_direction == directions.up then
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-- ⌜^⌝
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-- <o>
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table.insert(queue, {x = player_x - 1, y = player_y - 1, direction = directions.upleft})
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table.insert(queue, {x = player_x, y = player_y - 1, direction = directions.up})
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table.insert(queue, {x = player_x + 1, y = player_y - 1, direction = directions.upright})
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table.insert(queue, {x = player_x - 1, y = player_y, direction = directions.left})
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table.insert(queue, {x = player_x + 1, y = player_y, direction = directions.right})
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elseif player_direction == directions.left then
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-- ⌜^
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-- <o
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-- ⌞v
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table.insert(queue, {x = player_x - 1, y = player_y - 1, direction = directions.upleft})
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table.insert(queue, {x = player_x, y = player_y - 1, direction = directions.up})
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table.insert(queue, {x = player_x - 1, y = player_y, direction = directions.left})
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table.insert(queue, {x = player_x - 1, y = player_y + 1, direction = directions.downleft})
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table.insert(queue, {x = player_x, y = player_y + 1, direction = directions.down})
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elseif player_direction == directions.down then
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-- <o>
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-- ⌞v⌟
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table.insert(queue, {x = player_x - 1, y = player_y, direction = directions.left})
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table.insert(queue, {x = player_x + 1, y = player_y, direction = directions.right})
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table.insert(queue, {x = player_x - 1, y = player_y + 1, direction = directions.downleft})
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table.insert(queue, {x = player_x, y = player_y + 1, direction = directions.down})
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table.insert(queue, {x = player_x + 1, y = player_y + 1, direction = directions.downright})
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elseif player_direction == directions.right then
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-- ^⌝
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-- o>
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-- v⌟
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table.insert(queue, {x = player_x, y = player_y - 1, direction = directions.up})
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table.insert(queue, {x = player_x + 1, y = player_y - 1, direction = directions.upright})
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table.insert(queue, {x = player_x + 1, y = player_y, direction = directions.right})
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table.insert(queue, {x = player_x, y = player_y + 1, direction = directions.down})
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table.insert(queue, {x = player_x + 1, y = player_y + 1, direction = directions.downright})
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else
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error("Player facing an impossible direction")
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end
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repeat
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queue = stepVisibilityMapGeneration(queue)
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until #queue == 0
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-- Handle "visibility" from the feet
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local body_x, body_y = getBodyLocation()
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|
2019-06-28 20:35:17 +00:00
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visibility_map[body_x][body_y] = true
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2019-06-28 18:53:56 +00:00
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if player_direction == directions.up then
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-- <x>
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-- v
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visibility_map[body_x - 1][body_y] = true
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visibility_map[body_x + 1][body_y] = true
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visibility_map[body_x][body_y + 1] = true
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elseif player_direction == directions.left then
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-- ^
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-- x>
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-- v
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visibility_map[body_x][body_y - 1] = true
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visibility_map[body_x + 1][body_y] = true
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visibility_map[body_x][body_y + 1] = true
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elseif player_direction == directions.down then
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-- ^
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-- <x>
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visibility_map[body_x][body_y - 1] = true
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visibility_map[body_x - 1][body_y] = true
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visibility_map[body_x + 1][body_y] = true
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elseif player_direction == directions.right then
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-- ^
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-- <x
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-- v
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visibility_map[body_x][body_y - 1] = true
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visibility_map[body_x - 1][body_y] = true
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visibility_map[body_x][body_y + 1] = true
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else
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error("Player facing an impossible direction")
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end
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end
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function stepVisibilityMapGeneration(queue)
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|
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-- Do a modified floodfill, where each cell will only expand in its given direction, not
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-- every direction like in a normal floodfill
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local new_queue = {}
|
|
|
|
|
|
|
|
|
|
for i, item in ipairs(queue) do
|
2019-06-28 21:23:42 +00:00
|
|
|
|
if item.direction == directions.up then
|
|
|
|
|
visibility_map[item.x][item.y] = true
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x, item.y) then
|
2019-06-28 18:53:56 +00:00
|
|
|
|
table.insert(new_queue, {x = item.x, y = item.y - 1, direction = directions.up})
|
2019-06-28 21:23:42 +00:00
|
|
|
|
end
|
|
|
|
|
elseif item.direction == directions.left then
|
|
|
|
|
visibility_map[item.x][item.y] = true
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x, item.y) then
|
2019-06-28 18:53:56 +00:00
|
|
|
|
table.insert(new_queue, {x = item.x - 1, y = item.y, direction = directions.left})
|
2019-06-28 21:23:42 +00:00
|
|
|
|
end
|
|
|
|
|
elseif item.direction == directions.down then
|
|
|
|
|
visibility_map[item.x][item.y] = true
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x, item.y) then
|
2019-06-28 18:53:56 +00:00
|
|
|
|
table.insert(new_queue, {x = item.x, y = item.y + 1, direction = directions.down})
|
2019-06-28 21:23:42 +00:00
|
|
|
|
end
|
|
|
|
|
elseif item.direction == directions.right then
|
|
|
|
|
visibility_map[item.x][item.y] = true
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x, item.y) then
|
2019-06-28 18:53:56 +00:00
|
|
|
|
table.insert(new_queue, {x = item.x + 1, y = item.y, direction = directions.right})
|
2019-06-28 21:23:42 +00:00
|
|
|
|
end
|
|
|
|
|
elseif item.direction == directions.upleft then
|
|
|
|
|
-- Check that we could have gotten here also by moving only 4-ways
|
|
|
|
|
--
|
|
|
|
|
-- The possible cases are:
|
|
|
|
|
-- (o represents old position, x is new, and # is a wall)
|
|
|
|
|
--
|
|
|
|
|
-- x x# x x#
|
|
|
|
|
-- o o #o #o
|
|
|
|
|
--
|
|
|
|
|
-- In the first three, the movement is possible, but in the last one
|
|
|
|
|
-- it is not. We can therefore check whether the movement is valid
|
|
|
|
|
-- by testing if either the cell to our right or below us (the
|
|
|
|
|
-- directions opposite to the ones in an up.left movement) is empty
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x + 1, item.y) or seethrough(item.x, item.y + 1) then
|
2019-06-28 21:23:42 +00:00
|
|
|
|
visibility_map[item.x][item.y] = true
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x, item.y) then
|
2019-06-28 20:59:41 +00:00
|
|
|
|
-- ⌜^
|
|
|
|
|
-- ⌜ <x
|
|
|
|
|
table.insert(new_queue, {x = item.x - 1, y = item.y - 1, direction = directions.upleft})
|
|
|
|
|
table.insert(new_queue, {x = item.x, y = item.y - 1, direction = directions.up})
|
|
|
|
|
table.insert(new_queue, {x = item.x - 1, y = item.y, direction = directions.left})
|
|
|
|
|
end
|
2019-06-28 21:23:42 +00:00
|
|
|
|
end
|
|
|
|
|
elseif item.direction == directions.downleft then
|
|
|
|
|
-- See under item.direction == directions.upleft
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x + 1, item.y) or seethrough(item.x, item.y - 1) then
|
2019-06-28 21:23:42 +00:00
|
|
|
|
visibility_map[item.x][item.y] = true
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x, item.y) then
|
2019-06-28 20:59:41 +00:00
|
|
|
|
-- ⌞ <x
|
|
|
|
|
-- ⌞v
|
|
|
|
|
table.insert(new_queue, {x = item.x - 1, y = item.y, direction = directions.left})
|
|
|
|
|
table.insert(new_queue, {x = item.x - 1, y = item.y + 1, direction = directions.downleft})
|
|
|
|
|
table.insert(new_queue, {x = item.x, y = item.y + 1, direction = directions.down})
|
|
|
|
|
end
|
2019-06-28 21:23:42 +00:00
|
|
|
|
end
|
|
|
|
|
elseif item.direction == directions.downright then
|
|
|
|
|
-- See under item.direction == directions.upleft
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x - 1, item.y) or seethrough(item.x, item.y - 1) then
|
2019-06-28 21:23:42 +00:00
|
|
|
|
visibility_map[item.x][item.y] = true
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x, item.y) then
|
2019-06-28 20:59:41 +00:00
|
|
|
|
-- ⌟ x>
|
|
|
|
|
-- v⌟
|
|
|
|
|
table.insert(new_queue, {x = item.x + 1, y = item.y, direction = directions.right})
|
|
|
|
|
table.insert(new_queue, {x = item.x, y = item.y + 1, direction = directions.down})
|
|
|
|
|
table.insert(new_queue, {x = item.x + 1, y = item.y + 1, direction = directions.downright})
|
|
|
|
|
end
|
2019-06-28 21:23:42 +00:00
|
|
|
|
end
|
|
|
|
|
elseif item.direction == directions.upright then
|
|
|
|
|
-- See under item.direction == directions.upleft
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x - 1, item.y) or seethrough(item.x, item.y + 1) then
|
2019-06-28 21:23:42 +00:00
|
|
|
|
visibility_map[item.x][item.y] = true
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if seethrough(item.x, item.y) then
|
2019-06-28 20:59:41 +00:00
|
|
|
|
-- ^⌝
|
|
|
|
|
-- ⌝ x>
|
|
|
|
|
table.insert(new_queue, {x = item.x, y = item.y - 1, direction = directions.up})
|
|
|
|
|
table.insert(new_queue, {x = item.x + 1, y = item.y - 1, direction = directions.upright})
|
|
|
|
|
table.insert(new_queue, {x = item.x + 1, y = item.y, direction = directions.right})
|
|
|
|
|
end
|
2019-06-28 18:53:56 +00:00
|
|
|
|
end
|
2019-06-28 20:59:41 +00:00
|
|
|
|
else
|
2019-06-28 21:23:42 +00:00
|
|
|
|
error("Visibility floodfill item travelling in an impossible direction")
|
2019-06-28 18:53:56 +00:00
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
return new_queue
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
function initializeRememberedCavern()
|
|
|
|
|
remembered_cavern = {}
|
|
|
|
|
for x = 1, cavern.width do
|
|
|
|
|
local list = {}
|
|
|
|
|
for y = 1, cavern.height do
|
|
|
|
|
table.insert(list, nil)
|
|
|
|
|
end
|
|
|
|
|
table.insert(remembered_cavern, list)
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
function rememberVisible()
|
|
|
|
|
for x, list in ipairs(visibility_map) do
|
|
|
|
|
for y, visible in ipairs(list) do
|
|
|
|
|
if visible then
|
|
|
|
|
remembered_cavern[x][y] = cavern[x][y]
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
2019-06-29 11:10:30 +00:00
|
|
|
|
-- ------------------------------------------------------------------
|
|
|
|
|
-- Collision
|
|
|
|
|
-- ------------------------------------------------------------------
|
|
|
|
|
function passable(x, y)
|
|
|
|
|
return cavern[x][y] == tiletypes.empty or cavern[x][y] == tiletypes.orb
|
|
|
|
|
end
|
|
|
|
|
|
2019-06-29 20:18:18 +00:00
|
|
|
|
function seethrough(x, y)
|
|
|
|
|
return cavern[x][y] == tiletypes.empty or cavern[x][y] == tiletypes.orb or cavern[x][y] == tiletypes.slime
|
|
|
|
|
end
|
|
|
|
|
|
2019-06-29 11:37:00 +00:00
|
|
|
|
function collidedPlayerOrb()
|
|
|
|
|
local body_x, body_y = getBodyLocation()
|
|
|
|
|
return cavern[player_x][player_y] == tiletypes.orb or cavern[body_x][body_y] == tiletypes.orb
|
|
|
|
|
end
|
|
|
|
|
|
2019-06-29 20:18:18 +00:00
|
|
|
|
function collidedPlayerSlime()
|
|
|
|
|
local body_x, body_y = getBodyLocation()
|
|
|
|
|
return cavern[player_x][player_y] == tiletypes.slime or cavern[body_x][body_y] == tiletypes.slime
|
|
|
|
|
end
|
|
|
|
|
|
2019-06-28 15:13:03 +00:00
|
|
|
|
-- ------------------------------------------------------------------
|
|
|
|
|
-- Player helper functions
|
|
|
|
|
-- ------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
function getBodyLocation(x, y, facing)
|
|
|
|
|
if x == nil then x = player_x end
|
|
|
|
|
if y == nil then y = player_y end
|
|
|
|
|
if facing == nil then facing = player_direction end
|
|
|
|
|
|
|
|
|
|
if facing == directions.up then
|
|
|
|
|
-- Facing up, body is down
|
|
|
|
|
return x, y + 1
|
|
|
|
|
elseif facing == directions.left then
|
|
|
|
|
-- Facing left, body is right
|
|
|
|
|
return x + 1, y
|
|
|
|
|
elseif facing == directions.down then
|
|
|
|
|
-- Facing down, body is up
|
|
|
|
|
return x, y - 1
|
|
|
|
|
elseif facing == directions.right then
|
|
|
|
|
-- Facing right, body is left
|
|
|
|
|
return x - 1, y
|
|
|
|
|
else
|
|
|
|
|
error("Player facing an impossible direction")
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
function movePlayer(direction)
|
|
|
|
|
local dx = 0
|
|
|
|
|
local dy = 0
|
|
|
|
|
local new_direction = direction
|
|
|
|
|
|
|
|
|
|
-- If we are moving backwards, keep the old direction of facing
|
|
|
|
|
if player_direction == directions.up and direction == directions.down or
|
|
|
|
|
player_direction == directions.down and direction == directions.up or
|
|
|
|
|
player_direction == directions.left and direction == directions.right or
|
|
|
|
|
player_direction == directions.right and direction == directions.left then
|
|
|
|
|
new_direction = player_direction
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
if direction == directions.up then
|
|
|
|
|
dy = -1
|
|
|
|
|
elseif direction == directions.down then
|
|
|
|
|
dy = 1
|
|
|
|
|
elseif direction == directions.left then
|
|
|
|
|
dx = -1
|
|
|
|
|
elseif direction == directions.right then
|
|
|
|
|
dx = 1
|
|
|
|
|
elseif direction == directions.upleft then
|
2019-06-28 17:31:03 +00:00
|
|
|
|
if player_direction == directions.up then
|
|
|
|
|
dx = -1
|
|
|
|
|
new_direction = directions.left
|
|
|
|
|
elseif player_direction == directions.left then
|
|
|
|
|
dy = -1
|
|
|
|
|
new_direction = directions.up
|
|
|
|
|
elseif player_direction == directions.down then
|
2019-06-28 15:13:03 +00:00
|
|
|
|
-- ## ##
|
|
|
|
|
-- x# xo#
|
|
|
|
|
-- #o# # #
|
|
|
|
|
dy = -1
|
|
|
|
|
new_direction = directions.right
|
|
|
|
|
elseif player_direction == directions.right then
|
|
|
|
|
-- # # #x#
|
|
|
|
|
-- #xo #o
|
|
|
|
|
-- ## ##
|
|
|
|
|
dx = -1
|
|
|
|
|
new_direction = directions.down
|
|
|
|
|
else
|
2019-06-28 18:53:56 +00:00
|
|
|
|
error("Player facing an impossible direction")
|
2019-06-28 15:13:03 +00:00
|
|
|
|
end
|
|
|
|
|
elseif direction == directions.downleft then
|
|
|
|
|
if player_direction == directions.up then
|
|
|
|
|
-- #o# # #
|
|
|
|
|
-- x# xo#
|
|
|
|
|
-- ## ##
|
|
|
|
|
dy = 1
|
|
|
|
|
new_direction = directions.right
|
2019-06-28 17:31:03 +00:00
|
|
|
|
elseif player_direction == directions.left then
|
|
|
|
|
dy = 1
|
|
|
|
|
new_direction = directions.down
|
|
|
|
|
elseif player_direction == directions.down then
|
|
|
|
|
dx = -1
|
|
|
|
|
new_direction = directions.left
|
2019-06-28 15:13:03 +00:00
|
|
|
|
elseif player_direction == directions.right then
|
|
|
|
|
-- ## ##
|
|
|
|
|
-- #xo #o
|
|
|
|
|
-- # # #x#
|
|
|
|
|
dx = -1
|
|
|
|
|
new_direction = directions.up
|
|
|
|
|
else
|
2019-06-28 18:53:56 +00:00
|
|
|
|
error("Player facing an impossible direction")
|
2019-06-28 15:13:03 +00:00
|
|
|
|
end
|
|
|
|
|
elseif direction == directions.downright then
|
|
|
|
|
if player_direction == directions.up then
|
|
|
|
|
-- #o# # #
|
|
|
|
|
-- #x #ox
|
|
|
|
|
-- ## ##
|
|
|
|
|
dy = 1
|
|
|
|
|
new_direction = directions.left
|
|
|
|
|
elseif player_direction == directions.left then
|
|
|
|
|
-- ## ##
|
|
|
|
|
-- ox# o#
|
|
|
|
|
-- # # #x#
|
|
|
|
|
dx = 1
|
|
|
|
|
new_direction = directions.up
|
2019-06-28 17:31:03 +00:00
|
|
|
|
elseif player_direction == directions.down then
|
|
|
|
|
dx = 1
|
|
|
|
|
new_direction = directions.right
|
|
|
|
|
elseif player_direction == directions.right then
|
|
|
|
|
dy = 1
|
|
|
|
|
new_direction = directions.down
|
2019-06-28 15:13:03 +00:00
|
|
|
|
else
|
2019-06-28 18:53:56 +00:00
|
|
|
|
error("Player facing an impossible direction")
|
2019-06-28 15:13:03 +00:00
|
|
|
|
end
|
|
|
|
|
elseif direction == directions.upright then
|
2019-06-28 17:31:03 +00:00
|
|
|
|
if player_direction == directions.up then
|
|
|
|
|
dx = 1
|
|
|
|
|
new_direction = directions.right
|
2019-06-28 15:13:03 +00:00
|
|
|
|
elseif player_direction == directions.left then
|
|
|
|
|
-- # # #x#
|
|
|
|
|
-- ox# o#
|
|
|
|
|
-- ## ##
|
|
|
|
|
dx = 1
|
|
|
|
|
new_direction = directions.down
|
2019-06-28 17:31:03 +00:00
|
|
|
|
elseif player_direction == directions.down then
|
|
|
|
|
-- ## ##
|
|
|
|
|
-- #x #ox
|
|
|
|
|
-- #o# # #
|
|
|
|
|
dy = -1
|
|
|
|
|
new_direction = directions.left
|
|
|
|
|
elseif player_direction == directions.right then
|
|
|
|
|
dy = -1
|
|
|
|
|
new_direction = directions.up
|
2019-06-28 15:13:03 +00:00
|
|
|
|
else
|
2019-06-28 18:53:56 +00:00
|
|
|
|
error("Player facing an impossible direction")
|
2019-06-28 15:13:03 +00:00
|
|
|
|
end
|
|
|
|
|
else
|
|
|
|
|
error("Player moving in an impossible direction")
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
local body_x, body_y = getBodyLocation(player_x + dx, player_y + dy, new_direction)
|
|
|
|
|
|
2019-06-29 11:10:30 +00:00
|
|
|
|
if passable(player_x + dx, player_y + dy) and passable(body_x, body_y) then
|
2019-06-28 15:13:03 +00:00
|
|
|
|
player_x = player_x + dx
|
|
|
|
|
player_y = player_y + dy
|
|
|
|
|
player_direction = new_direction
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
2019-06-29 08:21:09 +00:00
|
|
|
|
-- ------------------------------------------------------------------
|
|
|
|
|
-- Gameloop functions
|
|
|
|
|
-- ------------------------------------------------------------------
|
|
|
|
|
function newGame()
|
2019-06-29 11:37:00 +00:00
|
|
|
|
game_mode = gamemodes.normal
|
|
|
|
|
|
2019-06-29 08:21:09 +00:00
|
|
|
|
generateCavern()
|
2019-06-29 08:45:13 +00:00
|
|
|
|
|
2019-06-29 08:21:09 +00:00
|
|
|
|
spawnPlayer()
|
2019-06-29 08:45:13 +00:00
|
|
|
|
spawnOrb()
|
2019-06-29 20:18:18 +00:00
|
|
|
|
spawnSlimes()
|
2019-06-29 08:45:13 +00:00
|
|
|
|
|
2019-06-29 08:21:09 +00:00
|
|
|
|
generateVisibilityMap()
|
|
|
|
|
initializeRememberedCavern()
|
2019-06-29 11:37:00 +00:00
|
|
|
|
|
|
|
|
|
if collidedPlayerOrb() then
|
|
|
|
|
game_mode = gamemodes.won
|
|
|
|
|
end
|
2019-06-29 08:21:09 +00:00
|
|
|
|
end
|
|
|
|
|
|
2019-06-29 20:18:18 +00:00
|
|
|
|
function moveSlimes()
|
2019-06-29 20:35:02 +00:00
|
|
|
|
for i, slime in pairs(slimes) do
|
2019-06-29 20:18:18 +00:00
|
|
|
|
local dx = 0
|
|
|
|
|
local dy = 0
|
|
|
|
|
|
|
|
|
|
local to_player_dx = player_x - slime.x
|
|
|
|
|
local to_player_dy = player_y - slime.y
|
2019-06-29 20:51:52 +00:00
|
|
|
|
if math.abs(to_player_dx) + math.abs(to_player_dy) <= 5 and math.random() < 0.7 then
|
|
|
|
|
-- If at max 5 moves away from player, book for it (likely)
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if math.abs(to_player_dx) > math.abs(to_player_dy) then
|
|
|
|
|
-- Needs to move more in the horizontal direction → move horizontally
|
|
|
|
|
if to_player_dx < 0 then
|
|
|
|
|
dx = -1
|
|
|
|
|
else
|
|
|
|
|
dx = 1
|
|
|
|
|
end
|
|
|
|
|
else
|
|
|
|
|
-- Otherwise move vertically
|
|
|
|
|
if to_player_dy < 0 then
|
|
|
|
|
dy = -1
|
|
|
|
|
else
|
|
|
|
|
dy = 1
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
else
|
|
|
|
|
local movement = math.random(0, 3)
|
|
|
|
|
if movement == 0 then
|
|
|
|
|
-- Up
|
|
|
|
|
dy = -1
|
|
|
|
|
elseif movement == 1 then
|
|
|
|
|
-- Left
|
|
|
|
|
dx = -1
|
|
|
|
|
elseif movement == 2 then
|
|
|
|
|
-- Down
|
|
|
|
|
dy = 1
|
|
|
|
|
elseif movement == 3 then
|
|
|
|
|
-- Right
|
|
|
|
|
dx = 1
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
-- We test for empty instead of using passable(), since we are overwriting a tile
|
|
|
|
|
if cavern[slime.x + dx][slime.y + dy] == tiletypes.empty then
|
|
|
|
|
cavern[slime.x + dx][slime.y + dy] = tiletypes.slime
|
|
|
|
|
cavern[slime.x][slime.y] = tiletypes.empty
|
|
|
|
|
slimes[i] = {x = slime.x + dx, y = slime.y + dy}
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
2019-06-29 20:35:02 +00:00
|
|
|
|
function killSlime()
|
|
|
|
|
local body_x, body_y = getBodyLocation()
|
|
|
|
|
|
|
|
|
|
for i, slime in pairs(slimes) do
|
|
|
|
|
if slime.x == player_x and slime.y == player_y or slime.x == body_x and slime.y == body_y then
|
|
|
|
|
cavern[slime.x][slime.y] = tiletypes.empty
|
|
|
|
|
slimes[i] = nil
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
2019-06-29 08:21:09 +00:00
|
|
|
|
function step(direction)
|
2019-06-29 11:37:00 +00:00
|
|
|
|
if game_mode == gamemodes.normal then
|
|
|
|
|
if last_direction_moved == direction then
|
|
|
|
|
-- Repeat faster after the initial threshold for repetition has been met
|
|
|
|
|
move_repeat_counter = 0.1
|
|
|
|
|
else
|
|
|
|
|
last_direction_moved = direction
|
|
|
|
|
move_repeat_counter = 0.3
|
|
|
|
|
end
|
2019-06-29 08:21:09 +00:00
|
|
|
|
|
2019-06-29 11:37:00 +00:00
|
|
|
|
rememberVisible()
|
2019-06-29 20:18:18 +00:00
|
|
|
|
|
2019-06-29 11:37:00 +00:00
|
|
|
|
movePlayer(direction)
|
2019-06-29 20:18:18 +00:00
|
|
|
|
moveSlimes()
|
|
|
|
|
|
2019-06-29 11:37:00 +00:00
|
|
|
|
generateVisibilityMap()
|
|
|
|
|
|
|
|
|
|
if collidedPlayerOrb() then
|
|
|
|
|
game_mode = gamemodes.won
|
|
|
|
|
end
|
2019-06-29 20:18:18 +00:00
|
|
|
|
|
|
|
|
|
if collidedPlayerSlime() then
|
2019-06-29 20:35:02 +00:00
|
|
|
|
if math.random(0, 1) == 0 then
|
|
|
|
|
newGame()
|
|
|
|
|
else
|
|
|
|
|
killSlime()
|
|
|
|
|
end
|
2019-06-29 20:18:18 +00:00
|
|
|
|
end
|
2019-06-29 11:37:00 +00:00
|
|
|
|
end
|
2019-06-29 08:21:09 +00:00
|
|
|
|
end
|
|
|
|
|
|
2019-06-28 15:13:03 +00:00
|
|
|
|
-- ------------------------------------------------------------------
|
2019-06-29 12:18:55 +00:00
|
|
|
|
-- Drawing
|
2019-06-28 15:13:03 +00:00
|
|
|
|
-- ------------------------------------------------------------------
|
2019-06-29 12:18:55 +00:00
|
|
|
|
function drawCavern()
|
2019-06-28 15:13:03 +00:00
|
|
|
|
local x_scale = love.graphics.getWidth() / cavern.width
|
|
|
|
|
local y_scale = love.graphics.getHeight() / cavern.height
|
|
|
|
|
|
2019-06-28 18:53:56 +00:00
|
|
|
|
for tile_x, list in ipairs(visibility_map) do
|
2019-06-28 15:13:03 +00:00
|
|
|
|
local x = (tile_x - 1) * x_scale
|
2019-06-28 18:53:56 +00:00
|
|
|
|
for tile_y, visible in ipairs(list) do
|
2019-06-28 15:13:03 +00:00
|
|
|
|
local y = (tile_y - 1) * y_scale
|
|
|
|
|
|
2019-06-29 11:37:00 +00:00
|
|
|
|
if visible or debug then
|
2019-06-28 18:53:56 +00:00
|
|
|
|
tile = cavern[tile_x][tile_y]
|
|
|
|
|
|
|
|
|
|
if tile == tiletypes.empty then
|
|
|
|
|
love.graphics.setColor(0, 0, 0)
|
2019-06-29 08:45:13 +00:00
|
|
|
|
love.graphics.rectangle('fill', x, y, x_scale, y_scale)
|
2019-06-28 18:53:56 +00:00
|
|
|
|
elseif tile == tiletypes.wall then
|
|
|
|
|
love.graphics.setColor(1, 1, 1)
|
2019-06-29 08:45:13 +00:00
|
|
|
|
love.graphics.rectangle('fill', x, y, x_scale, y_scale)
|
|
|
|
|
elseif tile == tiletypes.orb then
|
|
|
|
|
love.graphics.setColor(0.5, 0.3, 0.3)
|
|
|
|
|
love.graphics.rectangle('fill', x, y, x_scale, y_scale)
|
|
|
|
|
love.graphics.setColor(0, 1, 0)
|
|
|
|
|
love.graphics.ellipse('fill', x + 0.5 * x_scale, y + 0.5 * y_scale, 0.7 * x_scale/2, 0.7 * y_scale/2)
|
2019-06-29 20:18:18 +00:00
|
|
|
|
elseif tile == tiletypes.slime then
|
|
|
|
|
love.graphics.setColor(0, 0, 1)
|
|
|
|
|
love.graphics.ellipse('fill', x + 0.5 * x_scale, y + 0.5 * y_scale, 0.8 * x_scale/2, 0.8 * y_scale/2)
|
|
|
|
|
love.graphics.rectangle('fill', x + 0.1 * x_scale , y + 0.5 * y_scale, 0.8 * x_scale, 0.8 * y_scale/2)
|
2019-06-29 20:51:52 +00:00
|
|
|
|
elseif tile == tiletypes.unknown then
|
2019-06-28 18:53:56 +00:00
|
|
|
|
love.graphics.setColor(1, 0.5, 0.5)
|
2019-06-29 08:45:13 +00:00
|
|
|
|
love.graphics.rectangle('fill', x, y, x_scale, y_scale)
|
2019-06-29 20:51:52 +00:00
|
|
|
|
else
|
|
|
|
|
print("Impossible tile!!!")
|
2019-06-29 21:04:12 +00:00
|
|
|
|
love.graphics.setColor(1, 1, 0)
|
2019-06-29 20:51:52 +00:00
|
|
|
|
love.graphics.rectangle('fill', x, y, x_scale, y_scale)
|
2019-06-28 18:53:56 +00:00
|
|
|
|
end
|
2019-06-28 15:13:03 +00:00
|
|
|
|
else
|
2019-06-28 18:53:56 +00:00
|
|
|
|
tile = remembered_cavern[tile_x][tile_y]
|
2019-06-29 08:45:13 +00:00
|
|
|
|
|
2019-06-28 18:53:56 +00:00
|
|
|
|
if tile == tiletypes.empty then
|
|
|
|
|
love.graphics.setColor(0.2, 0.2, 0.2)
|
2019-06-29 08:45:13 +00:00
|
|
|
|
love.graphics.rectangle('fill', x, y, x_scale, y_scale)
|
2019-06-28 18:53:56 +00:00
|
|
|
|
elseif tile == tiletypes.wall then
|
2019-06-29 08:26:38 +00:00
|
|
|
|
love.graphics.setColor(0.9, 0.9, 0.9)
|
2019-06-29 08:45:13 +00:00
|
|
|
|
love.graphics.rectangle('fill', x, y, x_scale, y_scale)
|
|
|
|
|
elseif tile == tiletypes.orb then
|
|
|
|
|
love.graphics.setColor(0.4, 0.4, 0.4)
|
|
|
|
|
love.graphics.rectangle('fill', x, y, x_scale, y_scale)
|
|
|
|
|
love.graphics.setColor(0.2, 0.7, 0.2)
|
|
|
|
|
love.graphics.ellipse('fill', x + 0.5 * x_scale, y + 0.5 * y_scale, 0.7 * x_scale/2, 0.7 * y_scale/2)
|
2019-06-29 20:18:18 +00:00
|
|
|
|
elseif tile == tiletypes.slime then
|
|
|
|
|
love.graphics.setColor(0.2, 0.2, 0.7)
|
|
|
|
|
love.graphics.ellipse('fill', x + 0.5 * x_scale, y + 0.5 * y_scale, 0.8 * x_scale/2, 0.8 * y_scale/2)
|
|
|
|
|
love.graphics.rectangle('fill', x + 0.1 * x_scale , y + 0.5 * y_scale, 0.8 * x_scale, 0.8 * y_scale/2)
|
2019-06-28 18:53:56 +00:00
|
|
|
|
else
|
2019-06-29 12:51:33 +00:00
|
|
|
|
love.graphics.setColor(0.7, 0.5, 0.5)
|
2019-06-29 08:45:13 +00:00
|
|
|
|
love.graphics.rectangle('fill', x, y, x_scale, y_scale)
|
2019-06-28 18:53:56 +00:00
|
|
|
|
end
|
2019-06-28 15:13:03 +00:00
|
|
|
|
end
|
2019-06-29 20:18:18 +00:00
|
|
|
|
|
|
|
|
|
if debug and tile_x == player_x and tile_y == player_y then
|
|
|
|
|
love.graphics.setColor(1, 1, 0)
|
|
|
|
|
love.graphics.rectangle('fill', x + 0.5 * x_scale, y + 0.5 * y_scale, x_scale/2, y_scale/2)
|
|
|
|
|
end
|
2019-06-28 15:13:03 +00:00
|
|
|
|
end
|
|
|
|
|
end
|
2019-06-29 12:18:55 +00:00
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
function drawPlayer()
|
|
|
|
|
local x_scale = love.graphics.getWidth() / cavern.width
|
|
|
|
|
local y_scale = love.graphics.getHeight() / cavern.height
|
2019-06-28 15:13:03 +00:00
|
|
|
|
|
|
|
|
|
local player_head_center_x = (player_x - 1) * x_scale + 0.5 * x_scale
|
|
|
|
|
local player_head_center_y = (player_y - 1) * y_scale + 0.5 * y_scale
|
2019-06-29 12:18:55 +00:00
|
|
|
|
love.graphics.setColor(0.6, 0.3, 0.2)
|
2019-06-28 15:13:03 +00:00
|
|
|
|
love.graphics.ellipse('fill', player_head_center_x, player_head_center_y, x_scale/2, y_scale/2)
|
|
|
|
|
|
|
|
|
|
local player_body_x, player_body_y = getBodyLocation()
|
|
|
|
|
local player_body_x = (player_body_x - 1) * x_scale
|
|
|
|
|
local player_body_y = (player_body_y - 1) * y_scale
|
|
|
|
|
love.graphics.setColor(0, 0, 1)
|
|
|
|
|
love.graphics.rectangle('fill', player_body_x, player_body_y, x_scale, y_scale)
|
|
|
|
|
end
|
2019-06-29 12:18:55 +00:00
|
|
|
|
|
|
|
|
|
function drawWin()
|
|
|
|
|
local img_width, img_height = win_image:getDimensions()
|
|
|
|
|
|
|
|
|
|
local screen_width = love.graphics.getWidth()
|
|
|
|
|
local screen_height = love.graphics.getHeight()
|
|
|
|
|
|
|
|
|
|
local width_scale = screen_width / img_width
|
|
|
|
|
local height_scale = screen_height / img_height
|
|
|
|
|
local scale = math.min(width_scale, height_scale)
|
|
|
|
|
|
|
|
|
|
local left_border = (screen_width - img_width * scale) / 2
|
|
|
|
|
local up_border = (screen_height - img_height * scale) / 2
|
|
|
|
|
|
|
|
|
|
love.graphics.setColor(1, 1, 1)
|
|
|
|
|
love.graphics.draw(win_image, left_border, up_border, 0, scale, scale)
|
|
|
|
|
end
|
|
|
|
|
|
2019-06-29 12:46:17 +00:00
|
|
|
|
function drawConfig()
|
|
|
|
|
local text = nil
|
|
|
|
|
if configuration_step == configuration_steps.quit then
|
|
|
|
|
text = "Quit"
|
|
|
|
|
elseif configuration_step == configuration_steps.restart then
|
|
|
|
|
text = "Restart"
|
|
|
|
|
elseif configuration_step == configuration_steps.configure then
|
|
|
|
|
text = "Button configuration"
|
|
|
|
|
elseif configuration_step == directions.up then
|
|
|
|
|
text = "Up"
|
|
|
|
|
elseif configuration_step == directions.upleft then
|
|
|
|
|
text = "Up-Left"
|
|
|
|
|
elseif configuration_step == directions.left then
|
|
|
|
|
text = "Left"
|
|
|
|
|
elseif configuration_step == directions.downleft then
|
|
|
|
|
text = "Down-Left"
|
|
|
|
|
elseif configuration_step == directions.down then
|
|
|
|
|
text = "Down"
|
|
|
|
|
elseif configuration_step == directions.downright then
|
|
|
|
|
text = "Down-Right"
|
|
|
|
|
elseif configuration_step == directions.right then
|
|
|
|
|
text = "Right"
|
|
|
|
|
elseif configuration_step == directions.upright then
|
|
|
|
|
text = "Up-Right"
|
|
|
|
|
else
|
|
|
|
|
error("Impossible configuration step")
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
love.graphics.setColor(1, 1, 1)
|
|
|
|
|
love.graphics.print(text)
|
|
|
|
|
end
|
|
|
|
|
|
2019-06-29 12:18:55 +00:00
|
|
|
|
-- ------------------------------------------------------------------
|
|
|
|
|
-- Callbacks
|
|
|
|
|
-- ------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
function love.load()
|
|
|
|
|
math.randomseed(os.time())
|
|
|
|
|
|
|
|
|
|
newGame()
|
|
|
|
|
|
|
|
|
|
win_image = love.graphics.newImage("win_image.png")
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
function love.update(dt)
|
|
|
|
|
if move_repeat_counter ~= nil and move_repeat_counter > 0 then
|
|
|
|
|
move_repeat_counter = move_repeat_counter - dt
|
|
|
|
|
if move_repeat_counter <= 0 then
|
|
|
|
|
step(last_direction_moved)
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
function love.keypressed(key)
|
2019-06-29 12:46:17 +00:00
|
|
|
|
if game_mode == gamemodes.config then
|
|
|
|
|
-- This is a hack. Each "enum value" corresponds to an integer, and we are iterating
|
|
|
|
|
-- through them. -3 to -1 are control keys, and 0 to 7 are direction keys
|
|
|
|
|
if configuration_step >= directions.up and configuration_step <= directions.upright then
|
|
|
|
|
direction_keys[key] = configuration_step
|
|
|
|
|
elseif configuration_step == configuration_steps.quit then
|
|
|
|
|
control_keys.quit = key
|
|
|
|
|
elseif configuration_step == configuration_steps.restart then
|
|
|
|
|
control_keys.restart = key
|
|
|
|
|
elseif configuration_step == configuration_steps.configure then
|
|
|
|
|
control_keys.configure = key
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
configuration_step = configuration_step + 1
|
|
|
|
|
if configuration_step > directions.upright then
|
|
|
|
|
game_mode = gamemodes.normal
|
|
|
|
|
end
|
|
|
|
|
else
|
|
|
|
|
last_key_pressed = key
|
|
|
|
|
|
|
|
|
|
if key == control_keys.configure and game_mode == gamemodes.normal then
|
|
|
|
|
game_mode = gamemodes.config
|
|
|
|
|
configuration_step = configuration_steps.quit
|
|
|
|
|
elseif key == control_keys.quit then
|
|
|
|
|
love.event.quit()
|
|
|
|
|
elseif key == control_keys.restart then
|
|
|
|
|
newGame()
|
|
|
|
|
elseif direction_keys[key] ~= nil then
|
|
|
|
|
step(direction_keys[key])
|
2019-06-29 12:55:33 +00:00
|
|
|
|
elseif key == 'pause' then
|
2019-06-29 12:54:56 +00:00
|
|
|
|
debug = not debug
|
2019-06-29 12:46:17 +00:00
|
|
|
|
end
|
2019-06-29 12:18:55 +00:00
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
function love.keyreleased(key)
|
|
|
|
|
if last_key_pressed == key then
|
|
|
|
|
last_direction_moved = nil
|
|
|
|
|
move_repeat_counter = nil
|
|
|
|
|
end
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
function love.draw()
|
|
|
|
|
if game_mode == gamemodes.normal then
|
|
|
|
|
drawCavern()
|
2019-06-29 20:18:18 +00:00
|
|
|
|
if not debug then
|
|
|
|
|
drawPlayer()
|
|
|
|
|
end
|
2019-06-29 12:18:55 +00:00
|
|
|
|
elseif game_mode == gamemodes.won then
|
|
|
|
|
drawWin()
|
2019-06-29 12:46:17 +00:00
|
|
|
|
elseif game_mode == gamemodes.config then
|
|
|
|
|
drawConfig()
|
2019-06-29 12:18:55 +00:00
|
|
|
|
else
|
|
|
|
|
error("Impossible game mode")
|
|
|
|
|
end
|
|
|
|
|
end
|