--- a/industry_map.h	Mon Apr 10 20:46:37 2006 +0000
+++ b/industry_map.h	Mon Apr 10 21:00:56 2006 +0000
@@ -9,6 +9,7 @@
 #include "macros.h"
 #include "tile.h"
 
+typedef uint IndustryGfx;
 
 static inline uint GetIndustryIndex(TileIndex t)
 {
@@ -27,6 +28,8 @@
 	return HASBIT(_m[t].m1, 7);
 }
 
+IndustryType GetIndustryType(TileIndex tile);
+
 /**
  * Set if the industry that owns the tile as under construction or not
  * @param tile the tile to query
@@ -63,13 +66,13 @@
 	SB(_m[tile].m1, 0, 2, value);
 }
 
-static inline uint GetIndustryGfx(TileIndex t)
+static inline IndustryGfx GetIndustryGfx(TileIndex t)
 {
 	assert(IsTileType(t, MP_INDUSTRY));
 	return _m[t].m5;
 }
 
-static inline void SetIndustryGfx(TileIndex t, uint gfx)
+static inline void SetIndustryGfx(TileIndex t, IndustryGfx gfx)
 {
 	assert(IsTileType(t, MP_INDUSTRY));
 	_m[t].m5 = gfx;
@@ -123,4 +126,48 @@
 	_m[tile].m1 = 0;
 }
 
+typedef struct IndustryTypeSolver {
+	IndustryGfx MinGfx;
+	IndustryGfx MaxGfx;
+ } IndustryTypeSolver;
+
+static const IndustryTypeSolver industry_gfx_Solver [IT_END] = {
+	{  0,   6}, //IT_COAL_MINE
+	{  7,  10}, //IT_POWER_STATION,
+	{ 11,  15}, //IT_SAWMILL,
+	{ 16,  17}, //IT_FOREST,
+	{ 18,  23}, //IT_OIL_REFINERY,
+	{ 24,  28}, //IT_OIL_RIG,
+	{ 29,  31}, //IT_OIL_WELL,
+	{ 32,  38}, //IT_FARM,
+	{ 39,  42}, //IT_FACTORY,
+	{ 43,  46}, //IT_PRINTING_WORKS,
+	{ 47,  51}, //IT_COPPER_MINE,
+	{ 52,  57}, //IT_STEEL_MILL,
+	{ 58,  59}, //IT_BANK_TEMP,
+	{ 60,  63}, //IT_FOOD_PROCESS,
+	{ 64,  71}, //IT_PAPER_MILL,
+	{ 72,  88}, //IT_GOLD_MINE,
+	{ 89,  90}, //IT_BANK_TROPIC_ARCTIC,
+	{ 91,  99}, //IT_DIAMOND_MINE,
+	{100, 115}, //IT_IRON_MINE,
+	{116, 116}, //IT_FRUIT_PLANTATION,
+	{117, 117}, //IT_RUBBER_PLANTATION,
+	{118, 119}, //IT_WATER_SUPPLY,
+	{120, 120}, //IT_WATER_TOWER,
+	{121, 124}, //IT_FACTORY_2,
+	{125, 128}, //IT_LUMBER_MILL,
+	{129, 130}, //IT_COTTON_CANDY,
+	{131, 134}, //IT_CANDY_FACTORY or sweet factory
+	{135, 136}, //IT_BATTERY_FARM,
+	{137, 137}, //IT_COLA_WELLS,
+	{138, 141}, //IT_TOY_SHOP,
+	{142, 147}, //IT_TOY_FACTORY,
+	{148, 155}, //IT_PLASTIC_FOUNTAINS,
+	{156, 159}, //IT_FIZZY_DRINK_FACTORY,
+	{160, 163}, //IT_BUBBLE_GENERATOR,
+	{164, 166}, //IT_TOFFEE_QUARRY,
+	{167, 174}  //IT_SUGAR_MINE,
+};
+
 #endif /* INDUSTRY_MAP_H */