fix(ui): eliminate script errors

src/ui/CScriptRegion.cpp

@@ -64,6 +64,10 @@ bool CScriptRegion::IsDragging() {
     return false;
 }
 
+bool CScriptRegion::IsMouseOver(float a1, float a2, float a3, float a4) {
+    return false;
+}
+
 void CScriptRegion::LoadXML(XMLNode* node, CStatus* status) {
     CLayoutFrame::LoadXML(node, status);
 

src/ui/CScriptRegion.hpp

@@ -29,6 +29,7 @@ class CScriptRegion : public CScriptObject, public CLayoutFrame {
         virtual bool IsA(const char* typeName);
         virtual const char* GetObjectTypeName();
         virtual bool IsDragging();
+        virtual bool IsMouseOver(float a1, float a2, float a3, float a4);
         virtual void PreOnAnimUpdate() {};
         virtual void OnLayerUpdate(float elapsedSec);
         virtual void NotifyAnimBegin(CSimpleAnimGroup* animGroup);

src/ui/CScriptRegionScript.cpp

@@ -518,7 +518,23 @@ int32_t CScriptRegion_IsDragging(lua_State* L) {
 }
 
 int32_t CScriptRegion_IsMouseOver(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    int32_t type = CScriptRegion::GetObjectType();
+    auto region = static_cast<CScriptRegion*>(FrameScript_GetObjectThis(L, type));
+
+    float rect[4];
+    for (int32_t i = 0; i < 4; ++i) {
+        if (lua_isnumber(L, i + 2)) {
+            rect[i] = lua_tonumber(L, i + 2);
+            rect[i] /= CoordinateGetAspectCompensation() * 1024.0f;
+            rect[i] = NDCToDDCWidth(rect[i]);
+        } else {
+            rect[i] = 0.0f;
+        }
+    }
+
+    auto result = region->IsMouseOver(rect[0], rect[1], rect[2], rect[3]);
+    lua_pushboolean(L, result);
+    return 1;
 }
 
 FrameScript_Method ScriptRegionMethods[NUM_SCRIPT_REGION_SCRIPT_METHODS] = {

src/ui/CSimpleButtonScript.cpp

@@ -71,7 +71,10 @@ int32_t CSimpleButton_Disable(lua_State* L) {
 }
 
 int32_t CSimpleButton_IsEnabled(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    auto type = CSimpleButton::GetObjectType();
+    auto button = static_cast<CSimpleButton*>(FrameScript_GetObjectThis(L, type));
+    lua_pushnumber(L, button->GetButtonState() != BUTTONSTATE_DISABLED);
+    return 1;
 }
 
 int32_t CSimpleButton_GetButtonState(lua_State* L) {

src/ui/CSimpleFontStringScript.cpp

@@ -56,11 +56,25 @@ int32_t CSimpleFontString_Hide(lua_State* L) {
 }
 
 int32_t CSimpleFontString_IsVisible(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    auto type = CSimpleFontString::GetObjectType();
+    auto string = static_cast<CSimpleFontString*>(FrameScript_GetObjectThis(L, type));
+    if (string->m_visible) {
+        lua_pushnumber(L, 1.0);
+    } else {
+        lua_pushnil(L);
+    }
+    return 1;
 }
 
 int32_t CSimpleFontString_IsShown(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    auto type = CSimpleFontString::GetObjectType();
+    auto string = static_cast<CSimpleFontString*>(FrameScript_GetObjectThis(L, type));
+    if (string->m_shown) {
+        lua_pushnumber(L, 1.0);
+    } else {
+        lua_pushnil(L);
+    }
+    return 1;
 }
 
 int32_t CSimpleFontString_GetFontObject(lua_State* L) {

src/ui/CSimpleTextureScript.cpp

@@ -96,11 +96,25 @@ int32_t CSimpleTexture_Hide(lua_State* L) {
 }
 
 int32_t CSimpleTexture_IsVisible(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    auto type = CSimpleTexture::GetObjectType();
+    auto texture = static_cast<CSimpleTexture*>(FrameScript_GetObjectThis(L, type));
+    if (texture->m_visible) {
+        lua_pushnumber(L, 1.0);
+    } else {
+        lua_pushnil(L);
+    }
+    return 1;
 }
 
 int32_t CSimpleTexture_IsShown(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    auto type = CSimpleTexture::GetObjectType();
+    auto texture = static_cast<CSimpleTexture*>(FrameScript_GetObjectThis(L, type));
+    if (texture->m_shown) {
+        lua_pushnumber(L, 1.0);
+    } else {
+        lua_pushnil(L);
+    }
+    return 1;
 }
 
 int32_t CSimpleTexture_GetTexture(lua_State* L) {
@@ -211,11 +225,15 @@ int32_t CSimpleTexture_SetRotation(lua_State* L) {
 }
 
 int32_t CSimpleTexture_SetDesaturated(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    // TODO
+    lua_pushnil(L);
+    return 1;
 }
 
 int32_t CSimpleTexture_IsDesaturated(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    // TODO
+    lua_pushnil(L);
+    return 1;
 }
 
 int32_t CSimpleTexture_SetNonBlocking(lua_State* L) {

src/ui/LuaExtraFuncs.cpp

@@ -106,7 +106,9 @@ int32_t strlenutf8(lua_State* L) {
 }
 
 int32_t issecure(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    // TODO
+    lua_pushnil(L);
+    return 1;
 }
 
 int32_t issecurevariable(lua_State* L) {