[FEAT] crlf

ascii.cpp

@@ -335,6 +335,11 @@ void print(const char *str, int x, int y) {
     cursor_y = (pos+len)/screen_width;
 }
 
+void crlf() {
+    cursor_x=0;
+    cursor_y = min(cursor_y+1, screen_height-1);
+}
+
 bool btn(uint8_t i) {
     return keys[i];
 }

ascii.h

@@ -120,6 +120,7 @@ void color(uint8_t ink, uint8_t paper, int8_t border=-1);
 
 void locate(uint8_t x, uint8_t y);                  // global::cursorx, global::cursory
 void print(const char *str, int x = -1, int y = -1);
+void crlf();
 
 bool btn(uint8_t i);
 bool btnp(uint8_t i);

lua.cpp

@@ -54,6 +54,11 @@ extern "C" {
         return 0;
     }
 
+    static int cpp_crlf(lua_State *L) {
+        crlf();
+        return 0;
+    }
+
     static int cpp_btn(lua_State *L) {
         uint8_t i = luaL_checkinteger(L, 1);
         lua_pushboolean(L, btn(i));
@@ -326,6 +331,7 @@ void lua_init(const char* filename, const bool start_playing) {
 
     lua_pushcfunction(L,cpp_locate);       lua_setglobal(L, "locate");
     lua_pushcfunction(L,cpp_print);     lua_setglobal(L, "print");
+    lua_pushcfunction(L,cpp_crlf);     lua_setglobal(L, "crlf");
 
     lua_pushcfunction(L,cpp_btn);       lua_setglobal(L, "btn");
     lua_pushcfunction(L,cpp_btnp);      lua_setglobal(L, "btnp");