1 files changed, 44 insertions, 0 deletions
diff --git a/src/input.c b/src/input.c
new file mode 100644
index 00000000..df5b2290
--- /dev/null
+++ b/src/input.c
@@ -0,0 +1,44 @@
+#include "global.h"
+#include "entity.h"
+
+typedef struct {
+    u16 field_0x0;
+    u16 field_0x2;
+    u16 field_0x4;
+    u8 field_0x6;
+    u8 field_0x7;
+} Input;
+
+void StoreKeyInput(Input *pkeyInput, u32 ioKeyInput);
+
+extern Input gUnk_03000FF0;
+
+void ReadKeyInput(void)
+{
+    u32 reg = ~*(u16*)0x04000130 & 0x3FF;
+    Input* input = &gUnk_03000FF0;
+    StoreKeyInput(input, reg);
+}
+
+void StoreKeyInput(Input *input, u32 ioKeyInput)
+{
+  u32 difference;
+  u32 temp = input->field_0x0;
+  
+  difference = ioKeyInput & ~temp;
+  input->field_0x2 = difference;
+  if (ioKeyInput == temp) {
+    if (--input->field_0x7 == 0) {
+      input->field_0x7 = 4;
+      input->field_0x4 = ioKeyInput;
+    }
+    else {
+      input->field_0x4 = 0;
+    }
+  }
+  else {
+    input->field_0x7 = 0x14;
+    input->field_0x4 = difference;
+  }
+  input->field_0x0 = ioKeyInput;
+}
+\ No newline at end of file