Adding particle blend, glow and animation (#4705)

1 files changed, 22 insertions, 0 deletions

diff --git a/src/script/common/c_converter.cpp b/src/script/common/c_converter.cpp
index f36298915..cfb5e26db 100644
--- a/src/script/common/c_converter.cpp
+++ b/src/script/common/c_converter.cpp
@@ -513,6 +513,28 @@ int getintfield_default(lua_State *L, int table,
 	return result;
 }
 
+int check_material_type_param(lua_State *L, int table,
+		const char *fieldname, int default_)
+{
+	int material_type_param =
+		getintfield_default(L, table, fieldname, default_);
+	u32 alphaSource = (material_type_param & 0x0000F000) >> 12;
+	u32 modulo  = (material_type_param & 0x00000F00) >> 8;
+	u32 srcFact = (material_type_param & 0x000000F0) >> 4;
+	u32 dstFact = material_type_param & 0x0000000F;
+	if (alphaSource <= 3 && modulo <= 4 && srcFact <= 10 && dstFact <= 10) {
+		return material_type_param;
+	} else {
+		std::ostringstream error_text;
+		error_text << "Incorrect material_type_param value ";
+		error_text << "for particle or particle spawner.";
+		error_text << std::endl;
+		throw LuaError(error_text.str());
+		return 0;
+	}
+}
+
+
 float getfloatfield_default(lua_State *L, int table,
 		const char *fieldname, float default_)
 {