From cc4f8dfa516ca65dd610fbcfd6edc1dab201224f Mon Sep 17 00:00:00 2001
From: Alec Murphy <alec@checksum.fail>
Date: Tue, 10 Jun 2025 13:34:00 -0400
Subject: [PATCH] Add LibTemple/Input functions

---
 System/LibTemple/Input.HC | 12 ++++++++++++
 System/MakeSystem.HC      |  1 +
 src/libtemple/input.h     |  1 +
 src/libtemple/libtemple.c |  2 ++
 src/mujs/jslibtemple.c    | 37 +++++++++++++++++++++++++++++++++++--
 5 files changed, 51 insertions(+), 2 deletions(-)
 create mode 100644 System/LibTemple/Input.HC
 create mode 100644 src/libtemple/input.h

diff --git a/System/LibTemple/Input.HC b/System/LibTemple/Input.HC
new file mode 100644
index 0000000..43f1083
--- /dev/null
+++ b/System/LibTemple/Input.HC
@@ -0,0 +1,12 @@
+Bool @input_key_down(I64 sc)
+{
+    return Bt(kbd.down_bitmap, sc);
+}
+
+U0 input_key_down()
+{
+    PUSH_SYSV_REGS
+    GET_SYSV_ARGS
+    @input_key_down(p0);
+    POP_SYSV_REGS
+}
diff --git a/System/MakeSystem.HC b/System/MakeSystem.HC
index fbb1cbd..63860be 100644
--- a/System/MakeSystem.HC
+++ b/System/MakeSystem.HC
@@ -5,6 +5,7 @@
 #include "FFI/ELF64";
 
 // LibTemple support files
+#include "LibTemple/Input";
 #include "LibTemple/OS";
 
 #include "MuJS";
diff --git a/src/libtemple/input.h b/src/libtemple/input.h
new file mode 100644
index 0000000..eea94ec
--- /dev/null
+++ b/src/libtemple/input.h
@@ -0,0 +1 @@
+uint64_t input_key_down(uint64_t sc);
diff --git a/src/libtemple/libtemple.c b/src/libtemple/libtemple.c
index 5dad194..5b51dd1 100644
--- a/src/libtemple/libtemple.c
+++ b/src/libtemple/libtemple.c
@@ -1,3 +1,5 @@
+unsigned long input_key_down(unsigned long sc) { return 0; }
+
 unsigned long os_call_ext_str(char const* func) { return 0; }
 
 unsigned long os_call_ext_str_1(char const* func, unsigned long arg1) { return 0; }
diff --git a/src/mujs/jslibtemple.c b/src/mujs/jslibtemple.c
index 6036612..aa5251c 100644
--- a/src/mujs/jslibtemple.c
+++ b/src/mujs/jslibtemple.c
@@ -1,6 +1,7 @@
 #include <stdbool.h>
 #include <inttypes.h>
 
+#include "../libtemple/input.h"
 #include "../libtemple/os.h"
 
 #define value_or_number(v, x) js_isundefined(J, x) ? v : js_tonumber(J, x)
@@ -168,6 +169,22 @@ uint64_t get_glbl_var_addr(char* name)
     return addr ? *(uint64_t*)(addr + 0x78) : 0;
 }
 
+void Input_get_char(js_State *J)
+{
+    js_pushnumber(J, os_call_ext_str_3("GetChar", 0, 0, 0));
+}
+
+void Input_get_string(js_State *J)
+{
+    char* res = (char*)os_call_ext_str_3("GetStr", js_isundefined(J, 1) ? 0 : (uint64_t)js_tostring(J, 1), 0, 0);
+    if (!res) {
+        js_pushundefined(J);
+        return;
+    }
+    js_pushstring(J, res);
+    free(res);
+}
+
 void Input_mouse_x(js_State *J)
 {
     uint64_t* res = (uint64_t*)get_glbl_var_addr("ms");
@@ -192,16 +209,31 @@ void Input_mouse_rb(js_State *J)
     js_pushboolean(J, res[0xa1]); // offset(CMsStateGlbls.rb)
 }
 
+void Input_key_down(js_State *J)
+{
+    js_pushboolean(J, input_key_down(js_tonumber(J, 1)));
+}
+
+void Input_press_a_key(js_State *J)
+{
+    js_pushnumber(J, os_call_ext_str("PressAKey"));
+}
+
 void jsLT_initinput(js_State *J)
 {
     js_pushobject(J, jsV_newobject(J, -1, J->Object_prototype));
     {
+        jsB_propf(J, "Input.get_char", Input_get_char, 0);
+        jsB_propf(J, "Input.get_string", Input_get_string, 1);
         jsB_propf(J, "Input.mouse_x", Input_mouse_x, 0);
         jsB_propf(J, "Input.mouse_y", Input_mouse_y, 0);
         jsB_propf(J, "Input.mouse_lb", Input_mouse_lb, 0);
         jsB_propf(J, "Input.mouse_rb", Input_mouse_rb, 0);
+        jsB_propf(J, "Input.press_a_key", Input_press_a_key, 0);
+        jsB_propf(J, "Input.key_down", Input_key_down, 1);
     }
     js_defglobal(J, "Input", JS_DONTENUM);
+    js_dostring(J, "Input.key_up = function(sc) { return !Input.key_down(sc) }");
 }
 
 /** OS **/
@@ -261,8 +293,9 @@ void OS_read_file_as_string(js_State *J)
         return;
     }
     const char* filename = js_tostring(J, 1);
-    long file_as_string = os_call_ext_str_3("FileRead", (uint64_t)filename, 0, 0);
-    js_pushstring(J, file_as_string ? (char*)file_as_string : "");
+    char* file_as_string = (char*)os_call_ext_str_3("FileRead", (uint64_t)filename, 0, 0);
+    js_pushstring(J, file_as_string ? file_as_string : "");
+    free(file_as_string);
 }
 
 // U0 Reboot()