Minor changes to avoid undefined behaviour warnings.
Avoid creating a reference from a nullptr. Avoid trying a malloc and memcpy into a 0 length buffer. Virtual trains should never be drawn.
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@@ -94,7 +94,7 @@ protected:
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public:
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inline int SlopeCost(TileIndex tile, Trackdir td)
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{
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CPerfStart perf_cost(Yapf().m_perf_slope_cost);
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CPerfStart perf_cost(&Yapf().m_perf_slope_cost);
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if (!stSlopeCost(tile, td)) return 0;
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return Yapf().PfGetSettings().rail_slope_penalty;
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}
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@@ -280,7 +280,7 @@ public:
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{
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int cost = 0;
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/* if there is one-way signal in the opposite direction, then it is not our way */
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CPerfStart perf_cost(Yapf().m_perf_other_cost);
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CPerfStart perf_cost(&Yapf().m_perf_other_cost);
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if (IsTileType(tile, MP_RAILWAY)) {
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bool has_signal_against = HasSignalOnTrackdir(tile, ReverseTrackdir(trackdir));
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bool has_signal_along = HasSignalOnTrackdir(tile, trackdir);
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@@ -402,7 +402,7 @@ public:
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assert(tf->m_new_tile == n.m_key.m_tile);
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assert((TrackdirToTrackdirBits(n.m_key.m_td) & tf->m_new_td_bits) != TRACKDIR_BIT_NONE);
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CPerfStart perf_cost(Yapf().m_perf_cost);
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CPerfStart perf_cost(&Yapf().m_perf_cost);
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/* Does the node have some parent node? */
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bool has_parent = (n.m_parent != NULL);
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