143 lines
3.9 KiB
C++
143 lines
3.9 KiB
C++
/* Copyright: (c) Kayne Ruse 2013-2016
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*/
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#include "trigger_manager.hpp"
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TriggerManager::TriggerManager() {
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//EMPTY
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}
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TriggerManager::~TriggerManager() {
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UnloadAll();
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}
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//Compare the triggers to the entities, using their real hitboxes
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void TriggerManager::Compare(std::stack<Entity*> entityStack) {
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//NOTE: this stack solution should prevent problems when modifying the various lists
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while(entityStack.size()) {
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//get the entity & hitbox
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Entity* entity = entityStack.top();
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BoundingBox entityBox = entity->GetBounds() + entity->GetOrigin();
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//get the trigger pair & hitbox
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for (auto& triggerPair : elementMap) {
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BoundingBox triggerBox = triggerPair.second.GetBoundingBox() + triggerPair.second.GetOrigin();
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//find all collisions
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if (entityBox.CheckOverlap(triggerBox)) {
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//skip members of the exclusion list
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if (std::any_of(triggerPair.second.GetExclusionList()->begin(), triggerPair.second.GetExclusionList()->end(), [entity](Entity* ptr) -> bool {
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return entity == ptr;
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})) {
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continue;
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}
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//push to the exclusion list
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triggerPair.second.GetExclusionList()->push_back(entity);
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//run the trigger script
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lua_rawgeti(lua, LUA_REGISTRYINDEX, triggerPair.second.GetScriptReference());
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lua_pushlightuserdata(lua, entity);
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if (lua_pcall(lua, 1, 0, 0) != LUA_OK) {
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//error
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throw(std::runtime_error(std::string() + "Lua error: " + lua_tostring(lua, -1) ));
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}
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}
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else {
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//remove members of the exclusion list
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//NOTE: characters in different rooms won't be removed, which does tend to be a problem
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triggerPair.second.GetExclusionList()->remove_if([entity](Entity* ptr) -> bool {
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return entity == ptr;
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});
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}
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}
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//next
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entityStack.pop();
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}
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}
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int TriggerManager::Create(std::string handle) {
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//implicitly creates the element
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TriggerData& triggerData = elementMap[counter];
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triggerData.SetHandle(handle);
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return counter++;
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}
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void TriggerManager::Unload(int uid) {
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elementMap.erase(uid);
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}
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void TriggerManager::UnloadAll() {
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//TODO: save?
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elementMap.clear();
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}
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void TriggerManager::UnloadIf(std::function<bool(std::pair<const int, TriggerData const&>)> fn) {
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std::map<int, TriggerData>::iterator it = elementMap.begin();
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while (it != elementMap.end()) {
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if (fn(*it)) {
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it = elementMap.erase(it);
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}
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else {
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++it;
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}
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}
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}
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TriggerData* TriggerManager::Find(int uid) {
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std::map<int, TriggerData>::iterator it = elementMap.find(uid);
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if (it == elementMap.end()) {
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return nullptr;
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}
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return &it->second;
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}
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TriggerData* TriggerManager::Find(std::string handle) {
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for (std::map<int, TriggerData>::iterator it = elementMap.begin(); it != elementMap.end(); ++it) {
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if (it->second.GetHandle() == handle) {
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return &it->second;
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}
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}
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return nullptr;
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}
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int TriggerManager::GetLoadedCount() {
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return elementMap.size();
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}
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std::map<int, TriggerData>* TriggerManager::GetContainer() {
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return &elementMap;
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}
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//hooks
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lua_State* TriggerManager::SetLuaState(lua_State* L) {
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return lua = L;
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}
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lua_State* TriggerManager::GetLuaState() {
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return lua;
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} |