diff options
Diffstat (limited to 'dnglib/defaults.lua')
| -rw-r--r-- | dnglib/defaults.lua | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/dnglib/defaults.lua b/dnglib/defaults.lua new file mode 100644 index 0000000..77f688c --- /dev/null +++ b/dnglib/defaults.lua @@ -0,0 +1,178 @@ +-- ----------------------------------------------------------------------- +-- dng +-- ------------------------------------------------------------------------ +-- Copyright (c) 2022 Steph Enders <steph@senders.io> +-- +-- This software is provided 'as-is', without any express or implied +-- warranty. In no event will the authors be held liable for any damages +-- arising from the use of this software. +-- +-- Permission is granted to anyone to use this software for any purpose, +-- including commercial applications, and to alter it and redistribute it +-- freely, subject to the following restrictions: +-- +-- 1. The origin of this software must not be misrepresented; you must not +-- claim that you wrote the original software. If you use this software +-- in a product, an acknowledgment in the product documentation would +-- be appreciated but is not required. +-- +-- 2. Altered source versions must be plainly marked as such, and must not +-- be misrepresented as being the original software. +-- +-- 3. This notice may not be removed or altered from any source +-- distribution. +-- +-- ----------------------------------------------------------------------- + +--[[ +These are the default implementations of the override actions. +If you want to add custom logic into your game you can define a "proc.lua" in your map dir. + +The following functions are also available via our C library: + +void c_update_player_pos (dx, dy) +boolean c_player_can_move (dx, dy) +boolean c_enemy_can_move (id, dx, dy) +c_spawn_enemy (x, y) +c_destroy_enemy (id) +c_trigger_win() +c_trigger_loss(msg) +c_fatal(msg) + +--]] +package.path = "./?.lua;" .. package.path +require "dnglib.constants"; +local algs = require "dnglib.algs"; +local hasLost = false; +local hasWon = false; +local hasIntro = false; + +keys = { + up = KEY_UP, + down = KEY_DOWN, + left = KEY_LEFT, + right = KEY_RIGHT, + quit = KEY_ESCAPE, + start = KEY_SPACE, + restart = KEY_SPACE, +} + +--- setup random +--math.randomseed(os.time()) + +---@param pressedKey number +function onKeyPress(pressedKey) + scene = c_get_scene() + assert(type(scene) == "number", "scene is not a number") + if scene == SCENE_INTRO then + if pressedKey == keys.start then + c_trigger_level_start(); + end + elseif scene == SCENE_LEVEL then + dx = 0 + dy = 0 + if pressedKey == keys.up then + dy = -1 + elseif pressedKey == keys.left then + dx = -1 + elseif pressedKey == keys.down then + dy = 1 + elseif pressedKey == keys.right then + dx = 1 + end + + c_move_player(dx, dy) + elseif scene == SCENE_WIN or scene == SCENE_LOSS then + if pressedKey == keys.restart then + c_trigger_restart() + end + end +end + +local diff_time = 0 +---@param dt number +function onUpdate(dt) + diff_time = diff_time + dt + enemies = c_get_enemies() + assert(type(enemies) == "table", "Enemies not a table") + + player = c_get_player_position() + assert(type(player) == "table", "Player is not a table") + + map = c_get_map(); + assert(type(map) == "table", "map is not a table") + + for _, v in ipairs(enemies) do + local next; + if diff_time >= MOV_TIME then + next = algs.pathfind(v, player, map) + else + next = { dx = 0, dy = 0 } + end + new_pos = c_move_enemy(v.id, next.dx, next.dy) + assert(type(new_pos) == "table", "new_pos is not a table") + if new_pos.x == player.x and new_pos.y == player.y then + c_trigger_loss() + end + end + treasures = c_get_treasures() + assert(type(treasures) == "table", "treasures is not a table") + + for _, t in ipairs(treasures) do + if t.x == player.x and t.y == player.y then + c_score_treasure(t.id) + if #treasures == 1 then + c_trigger_win() + end + end + end + if diff_time > MOV_TIME then + diff_time = 0 + end +end + +function onWin() + if hasWon == false then + hasWon = true + print("You WIN!!!!!!!!!") + end +end + +function onLoss() + if hasLost == false then + hasLost = true + print("Oh no! You lost!") + end +end + +function onIntro() + if hasIntro == false then + hasIntro = true + print([[ +................... +.. dng .. +................... +.. controls .. +................... +.. start -- space.. +.. move -- wasd .. +.. quit -- q .. +................... +.. goal .. +................... +.. Find treasure .. +.. Avoid enemies .. +................... + ]]) + end +end + +--- allow for requiring in other files for usage +return { + onKeyPress = onKeyPress, + onUpdate = onUpdate, + onWin = onWin, + onLoss = onLoss, + onIntro = onIntro, + keys = keys, +} |