sdk: get/set coin blocker (#918)

src/spice2x/sdk/include/spicesdk.h

@@ -248,6 +248,27 @@ typedef SPICE_SDK_STATUS_CODE (__cdecl spice_sdk_insert_coin_func)(
     uint8_t amount
 );
 
+// get_coin_blocker (v0.6 and up)
+// gets the current shared coin blocker state
+// insert_coin bypasses the blocker regardless of this state
+//
+//   blocked: receives true when coins are blocked, false when allowed
+
+typedef SPICE_SDK_STATUS_CODE (__cdecl spice_sdk_get_coin_blocker_func)(
+    bool *blocked
+);
+
+// set_coin_blocker (v0.6 and up)
+// sets the shared coin blocker state used by normal coin input
+// this is not a persistent override; the game can change the state again
+// insert_coin bypasses the blocker regardless of this state
+//
+//   blocked: true to block coins, false to allow them
+
+typedef SPICE_SDK_STATUS_CODE (__cdecl spice_sdk_set_coin_blocker_func)(
+    bool blocked
+);
+
 typedef struct SPICE_SDK_MODULE_INFO {
     uint32_t size; // initialize to sizeof(SPICE_SDK_MODULE_INFO)
     uintptr_t base; // loaded address, not the preferred PE image base
@@ -383,6 +404,9 @@ typedef struct SPICE_SDK_V0 {
 
     spice_sdk_hook_library_func *hook_library;
 
+    spice_sdk_get_coin_blocker_func *get_coin_blocker;
+    spice_sdk_set_coin_blocker_func *set_coin_blocker;
+
 } SPICE_SDK_V0;
 
 typedef void (__cdecl spice_sdk_destroy_callback_func)(

src/spice2x/sdk/sdk.cpp

@@ -36,6 +36,8 @@ static spice_sdk_insert_card_func sdk_insert_card;
 static spice_sdk_set_keypad_func sdk_set_keypad;
 static spice_sdk_add_toast_func sdk_add_toast;
 static spice_sdk_insert_coin_func sdk_insert_coin;
+static spice_sdk_get_coin_blocker_func sdk_get_coin_blocker;
+static spice_sdk_set_coin_blocker_func sdk_set_coin_blocker;
 static spice_sdk_get_module_info_func sdk_get_module_info;
 static spice_sdk_get_plugin_directory_func sdk_get_plugin_directory;
 static spice_sdk_register_d3d9_func sdk_register_d3d9;
@@ -211,6 +213,14 @@ sdk_init(
     }
     // end of 0.5
 
+    if (v0->size >= RTL_SIZEOF_THROUGH_FIELD(SPICE_SDK_V0, get_coin_blocker)) {
+        v0->get_coin_blocker = sdk_get_coin_blocker;
+    }
+    if (v0->size >= RTL_SIZEOF_THROUGH_FIELD(SPICE_SDK_V0, set_coin_blocker)) {
+        v0->set_coin_blocker = sdk_set_coin_blocker;
+    }
+    // end of 0.6
+
     // any newer minor iterations will need to check the size
 
     {
@@ -746,4 +756,37 @@ sdk_insert_coin(
     return SPICE_SDK_STATUS_SUCCESS;
 }
 
+SPICE_SDK_STATUS_CODE
+__cdecl
+sdk_get_coin_blocker(
+    bool *blocked
+)
+{
+    std::shared_lock lock(sdk_global_mutex);
+    if (!sdk_initialized) {
+        return SPICE_SDK_STATUS_TOO_LATE;
+    }
+    if (!blocked) {
+        return SPICE_SDK_STATUS_INVALID_ARGUMENT_1;
+    }
+
+    *blocked = eamuse_coin_get_block();
+    return SPICE_SDK_STATUS_SUCCESS;
+}
+
+SPICE_SDK_STATUS_CODE
+__cdecl
+sdk_set_coin_blocker(
+    bool blocked
+)
+{
+    std::shared_lock lock(sdk_global_mutex);
+    if (!sdk_initialized) {
+        return SPICE_SDK_STATUS_TOO_LATE;
+    }
+
+    eamuse_coin_set_block(blocked);
+    return SPICE_SDK_STATUS_SUCCESS;
+}
+
 } // namespace sdk