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* Add utility for straight up using Ghidra byte strings * Clarify some structure in Entity/EntityDB * Add missing members to RenderInfo * Add get_max_rope_length * Add return to spawn_tree, plus typo fixes * Fix in info_dump * Disable static assert for MSVC * First draft of spawn rope * Update docs * Clang fix number one * Formatting fixes * Add missing new line at EOF * MrAuto requests * Second draft for rope spawn * Add interface to disable all hooks * Tag vanilla machine rooms with a special tag * Add util for super lazy people * Crazy code to allow making single entities climbable * Fix wrong param in update_movable * Add base_behavior binding * Split entity.hpp/.cpp into three * Add API to disable turning, useful when doing custom state machines and turning logic fudges with the result * Add missing patterns * Fix CI * clone types, no crazy code * Relax construct and destroy interface on allocators * Change hasher on EntityDB::animations * Automated clang-format changes * Remove set_climbable and other unnecessary stuff * some documentation for EntityDB * Fix for missing _ENV in some callbacks * Update docs * clang clang * Add new line at EOF Co-authored-by: Dregu <[email protected]> Co-authored-by: Clang-Format Bot <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,59 @@ | ||
| Used to store static common data for an ENT_TYPE. You can also clone entity types with the copy constructor to create new custom entities with different common properties. [This tool](https://dregu.github.io/Spelunky2ls/animation.html) can be helpful when messing with the animations. The default values are also listed in [entities.json](https://github.com/spelunky-fyi/overlunky/blob/main/docs/game_data/entities.json). | ||
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| > When cloning an entity type, remember to save it in the script for as long as you need it. Otherwise the memory will be freed immediately, which eventually leads to a crash when used or overwritten by other stuff: | ||
| ```lua | ||
| -- Create a special fast snake type with weird animation | ||
| special_snake = EntityDB:new(ENT_TYPE.MONS_SNAKE) | ||
| special_snake.max_speed = 1 | ||
| special_snake.acceleration = 2 | ||
| special_snake.animations[2].num_tiles = 1 | ||
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| set_post_entity_spawn(function(snake) | ||
| -- 50% chance to make snakes special | ||
| if prng:random_chance(2, PRNG_CLASS.PROCEDURAL_SPAWNS) then | ||
| -- Assign custom type | ||
| snake.type = special_snake | ||
| -- This is only really needed if types are changed during the level | ||
| snake.current_animation = special_snake.animations[2] | ||
| end | ||
| end, SPAWN_TYPE.ANY, MASK.MONSTER, ENT_TYPE.MONS_SNAKE) | ||
| ``` | ||
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| > You can also use Entity.user_data to store the custom type: | ||
| ```lua | ||
| -- Custom player who is buffed a bit every level | ||
| set_callback(function() | ||
| -- Doing this to include HH | ||
| for i,v in ipairs(get_entities_by_mask(MASK.PLAYER)) do | ||
| local player = get_entity(v) | ||
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| -- Create new custom type on the first level, based on the original type | ||
| if not player.user_data then | ||
| player.user_data = {} | ||
| player.user_data.type = EntityDB:new(player.type.id) | ||
| end | ||
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| -- Set the player entity type to the custom type every level | ||
| player.type = player.user_data.type | ||
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| -- Buff the player every subsequent level | ||
| if state.level_count > 0 then | ||
| player.type.max_speed = player.type.max_speed * 1.1 | ||
| player.type.acceleration = player.type.acceleration * 1.1 | ||
| player.type.jump = player.type.jump * 1.1 | ||
| end | ||
| end | ||
| end, ON.POST_LEVEL_GENERATION) | ||
| ``` | ||
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| > Illegal bad example, don't do this: | ||
| ```lua | ||
| set_callback(function() | ||
| -- Nobody owns the new type and the memory is freed immediately, eventually leading to a crash | ||
| players[1].type = EntityDB:new(players[1].type) | ||
| players[1].type.max_speed = 2 | ||
| end, ON.POST_LEVEL_GENERATION) | ||
| ``` |
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| @@ -0,0 +1,23 @@ | ||
| #pragma once | ||
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| #include <cstddef> | ||
| #include <type_traits> | ||
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| template <class T = void> | ||
| struct identity_hasher | ||
| { | ||
| [[nodiscard]] size_t operator()(const T& val) const noexcept | ||
| { | ||
| return static_cast<size_t>(val); | ||
| } | ||
| }; | ||
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| template <> | ||
| struct identity_hasher<void> | ||
| { | ||
| template <class T> | ||
| [[nodiscard]] size_t operator()(const T& val) const noexcept | ||
| { | ||
| return static_cast<size_t>(val); | ||
| } | ||
| }; |
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