Added onUpdate logic to move the enemies etc

Created some algorithm logic for enemy movement
Allowed for default overrides

1 files changed, 61 insertions, 0 deletions

diff --git a/include/defaults.lua b/include/defaults.lua
new file mode 100644
index 0000000..a6cefe5
--- /dev/null
+++ b/include/defaults.lua
@@ -0,0 +1,61 @@
+--[[
+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)
+
+--]]
+require "include.constants";
+local algs = require "include.algs";
+
+--- setup random
+--math.randomseed(os.time())
+
+---@param pressedKey number
+function onKeyPress(pressedKey)
+
+    dx = 0
+    dy = 0
+    if (pressedKey == KEY_W) then
+        dy = -1
+    elseif pressedKey == KEY_A then
+        dx = -1
+    elseif pressedKey == KEY_S then
+        dy = 1
+    elseif pressedKey == KEY_D then
+        dx = 1
+    end
+
+    c_move_player(dx, dy)
+end
+
+function onUpdate()
+    enemies = c_get_enemies() -- external
+    assert(type(enemies) == "table", "Enemies not a table")
+
+    player = c_get_player_position() -- external
+    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 = algs.pathfind(v, player, map)
+        c_move_enemy(v.id, next.dx, next.dy)
+    end
+end
+
+--- allow for requiring in other files for usage
+return {
+    onKeyPress = onKeyPress,
+    onUpdate = onUpdate,
+}
\ No newline at end of file