Implement the industry struct and manager (#58)

src/openloco/industry.cpp

@@ -0,0 +1,9 @@
+#include "industry.h"
+
+namespace openloco
+{
+    bool industry::empty() const
+    {
+        return name == string_ids::null;
+    }
+}

src/openloco/industry.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "localisation/stringmgr.h"
+#include <cstdint>
+#include <limits>
+
+namespace openloco
+{
+    using industry_id_t = uint16_t;
+
+    namespace industry_id
+    {
+        constexpr industry_id_t null = std::numeric_limits<industry_id_t>::max();
+    }
+
+#pragma pack(push, 1)
+    struct industry
+    {
+        string_id name;
+        uint8_t pad_02[0xD5 - 0x02];
+        uint16_t var_D5;
+        uint8_t pad_D7[0x453 - 0xD7];
+
+        bool empty() const;
+    };
+#pragma pack(pop)
+}

src/openloco/industrymgr.cpp

@@ -0,0 +1,24 @@
+#include "industrymgr.h"
+#include "interop/interop.hpp"
+
+using namespace openloco::interop;
+
+namespace openloco::industrymgr
+{
+    static loco_global_array<industry, max_industries, 0x005C455C> _industries;
+
+    std::array<industry, max_industries>& industries()
+    {
+        auto arr = (std::array<industry, max_industries>*)_industries.get();
+        return *arr;
+    }
+
+    industry* get(industry_id_t id)
+    {
+        if (id >= _industries.size())
+        {
+            return nullptr;
+        }
+        return &_industries[id];
+    }
+}

src/openloco/industrymgr.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "industry.h"
+#include <array>
+#include <cstddef>
+
+namespace openloco::industrymgr
+{
+    constexpr size_t max_industries = 128;
+
+    std::array<industry, max_industries>& industries();
+    industry* get(industry_id_t id);
+}

src/openloco/openloco.vcxproj

@@ -21,6 +21,8 @@
     <ClCompile Include="console.cpp" />
     <ClCompile Include="date.cpp" />
     <ClCompile Include="envionment.cpp" />
+    <ClCompile Include="industry.cpp" />
+    <ClCompile Include="industrymgr.cpp" />
     <ClCompile Include="input.cpp" />
     <ClCompile Include="interop\hooks.cpp" />
     <ClCompile Include="localisation\stringmgr.cpp" />
@@ -63,6 +65,8 @@
     <ClInclude Include="date.h" />
     <ClInclude Include="environment.h" />
     <ClInclude Include="graphics\colours.h" />
+    <ClInclude Include="industry.h" />
+    <ClInclude Include="industrymgr.h" />
     <ClInclude Include="input.h" />
     <ClInclude Include="intro.h" />
     <ClInclude Include="localisation\stringmgr.h" />