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https://github.com/scp-fs2open/fs2open.github.com.git
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asarium
544029f66f
This adds the capability to have a Lua script that does not need to use our table syntax at all but instead defines the hooks by calling API functions. This also makes it possible to add hook functions at runtime if the script requires that. Also clean up some unused debug stuff.
84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
//
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//
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#include "engine.h"
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#include "scripting/scripting.h"
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namespace scripting {
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namespace api {
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//**********LIBRARY: Engine
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ADE_LIB(l_Engine, "Engine", "engine", "Basic engine access functions");
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ADE_FUNC(addHook, l_Engine,
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"string name, function hookFunction, [table conditionals = {}], [function override_func = return false]",
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"Adds a function to be called from the specified game hook", "boolean",
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"true if hook was installed properly, false otherwise")
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{
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using namespace luacpp;
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const char* hook_name;
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LuaFunction hook;
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LuaTable conditionals;
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LuaFunction override_func;
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if (!ade_get_args(L, "su|tu", &hook_name, &hook, &conditionals, &override_func)) {
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return ADE_RETURN_FALSE;
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}
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if (!hook.isValid()) {
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LuaError(L, "Hook function is invalid!");
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return ADE_RETURN_FALSE;
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}
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ConditionedHook cond_hook;
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script_action action;
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action.action_type = scripting_string_to_action(hook_name);
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if (action.action_type == CHA_NONE) {
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LuaError(L, "Invalid hook name '%s'!", hook_name);
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return ADE_RETURN_FALSE;
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}
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action.hook.hook_function.language = SC_LUA;
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action.hook.hook_function.function = hook;
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if (override_func.isValid()) {
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action.hook.override_function.language = SC_LUA;
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action.hook.override_function.function = override_func;
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}
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cond_hook.AddAction(&action);
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if (conditionals.isValid()) {
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for (const auto& tableEntry : conditionals) {
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const auto& key = tableEntry.first;
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const auto& value = tableEntry.second;
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if (!key.is(ValueType::STRING)) {
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LuaError(L, "Conditional key '%s' is not a string", key.getValue<SCP_string>().c_str());
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return ADE_RETURN_FALSE;
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}
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if (!value.is(ValueType::STRING)) {
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LuaError(L, "Conditional value '%s' for key '%s' is not a string", value.getValue<SCP_string>().c_str(),
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key.getValue<SCP_string>().c_str());
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return ADE_RETURN_FALSE;
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}
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script_condition cond;
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cond.condition_type = scripting_string_to_condition(key.getValue<SCP_string>().c_str());
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cond.condition_string = value.getValue<SCP_string>();
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cond_hook.AddCondition(&cond);
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}
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}
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Script_system.AddConditionedHook(std::move(cond_hook));
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return ADE_RETURN_TRUE;
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}
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} // namespace api
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} // namespace scripting
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