93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
#include "functions.h"
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#include "../lua_hook.h"
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#include <windows.h>
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#include <string>
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// Maximum number of lines held in the feed at once.
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static constexpr int MAX_LINES = 8;
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// Keys used as the RawText identifier for each slot, enabling Remove_Tutorial_Text lookups.
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static constexpr float PERPETUAL = -1.0f;
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static char g_keys[MAX_LINES][16]; // "FOCA_0" .. "FOCA_7"
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static int g_head = 0; // index of oldest active slot
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static int g_count = 0; // number of active slots
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static void reset_feed()
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{
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g_head = 0;
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g_count = 0;
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for (int i = 0; i < MAX_LINES; i++)
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wsprintfA(g_keys[i], "FOCA_%d", i);
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}
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// Print_Screen_Text(text [, duration])
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// Appends a line to the bottom of the tutorial text feed.
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// duration defaults to -1 (perpetual). Pass a positive number of seconds to auto-expire.
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static int L_Print_Screen_Text(lua_State* L)
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{
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const char* text = pfn_tostring(L, 1);
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if (!text || !pfn_add_tutorial_text || !g_command_bar)
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return 0;
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float duration = PERPETUAL;
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if (pfn_tonumber)
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{
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double arg2 = pfn_tonumber(L, 2);
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if (arg2 != 0.0)
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duration = (float)arg2;
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}
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// Widen to wchar_t for the game's basic_string<wchar_t> parameter.
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int wlen = MultiByteToWideChar(CP_ACP, 0, text, -1, nullptr, 0);
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std::wstring wtext(wlen - 1, L'\0');
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MultiByteToWideChar(CP_ACP, 0, text, -1, &wtext[0], wlen);
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// If the feed is full, evict the oldest entry.
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if (g_count >= MAX_LINES)
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{
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pfn_remove_tutorial_text(g_command_bar, g_keys[g_head]);
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g_head = (g_head + 1) % MAX_LINES;
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g_count--;
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}
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int slot = (g_head + g_count) % MAX_LINES;
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g_count++;
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// Inner overload: (this, wstring*, key, duration, index, teletype, color)
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// index=0 so StartTime is set immediately; teletype=false for instant display; color=nullptr for default.
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pfn_add_tutorial_text(g_command_bar, &wtext, g_keys[slot], duration, 0, false, nullptr);
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return 0;
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}
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// Clear_Screen_Text()
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// Removes all active FoCAPI-managed screen text entries.
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static int L_Clear_Screen_Text(lua_State* L)
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{
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if (!pfn_remove_tutorial_text || !g_command_bar)
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return 0;
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for (int i = 0; i < g_count; i++)
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{
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int slot = (g_head + i) % MAX_LINES;
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pfn_remove_tutorial_text(g_command_bar, g_keys[slot]);
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}
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g_head = 0;
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g_count = 0;
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return 0;
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}
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void Register_ScreenText(lua_State* L)
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{
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if (!pfn_add_tutorial_text || !pfn_remove_tutorial_text || !g_command_bar)
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return;
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reset_feed();
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register_global(L, "Print_Screen_Text", L_Print_Screen_Text);
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register_global(L, "Clear_Screen_Text", L_Clear_Screen_Text);
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}
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