#define PIPE_SIMPLE_STRAIGHT	0
#define PIPE_SIMPLE_BENT		1
#define PIPE_HE_STRAIGHT		2
#define PIPE_HE_BENT			3
#define PIPE_CONNECTOR			4
#define PIPE_MANIFOLD			5
#define PIPE_JUNCTION			6
#define PIPE_UVENT				7
#define PIPE_MVALVE				8
#define PIPE_PUMP				9
#define PIPE_SCRUBBER			10
#define PIPE_GAS_FILTER			11
#define PIPE_GAS_MIXER			12
#define PIPE_PASSIVE_GATE       13
#define PIPE_VOLUME_PUMP        14
#define PIPE_HEAT_EXCHANGE      15
#define PIPE_MTVALVE			16
#define PIPE_MANIFOLD4W			17
#define PIPE_CAP				18
///// Z-Level stuff
#define PIPE_UP					19
#define PIPE_DOWN				20
///// Z-Level stuff
#define PIPE_GAS_FILTER_M		21
#define PIPE_GAS_MIXER_T		22
#define PIPE_GAS_MIXER_M		23
#define PIPE_OMNI_MIXER			24
#define PIPE_OMNI_FILTER		25
///// Supply, scrubbers and universal pipes
#define PIPE_UNIVERSAL				26
#define PIPE_SUPPLY_STRAIGHT		27
#define PIPE_SUPPLY_BENT			28
#define PIPE_SCRUBBERS_STRAIGHT		29
#define PIPE_SCRUBBERS_BENT			30
#define PIPE_SUPPLY_MANIFOLD		31
#define PIPE_SCRUBBERS_MANIFOLD		32
#define PIPE_SUPPLY_MANIFOLD4W		33
#define PIPE_SCRUBBERS_MANIFOLD4W	34
#define PIPE_SUPPLY_UP				35
#define PIPE_SCRUBBERS_UP			36
#define PIPE_SUPPLY_DOWN			37
#define PIPE_SCRUBBERS_DOWN			38
#define PIPE_SUPPLY_CAP				39
#define PIPE_SCRUBBERS_CAP			40
///// Mirrored T-valve ~ because I couldn't be bothered re-sorting all of the defines
#define PIPE_MTVALVEM				41

#define PIPE_PASSIVE_GATE_SCRUBBER  42
#define PIPE_PASSIVE_GATE_SUPPLY    43

///// New defines for fuel and auxiliary piping
#define PIPE_FUEL_STRAIGHT			44
#define PIPE_FUEL_BENT				45
#define PIPE_AUX_STRAIGHT			46
#define PIPE_AUX_BENT				47
#define PIPE_FUEL_MANIFOLD			48
#define PIPE_AUX_MANIFOLD			49
#define PIPE_FUEL_MANIFOLD4W		50
#define PIPE_AUX_MANIFOLD4W			51
#define PIPE_FUEL_UP				52
#define PIPE_AUX_UP					53
#define PIPE_FUEL_DOWN				54
#define PIPE_AUX_DOWN				55
#define PIPE_FUEL_CAP				56
#define PIPE_AUX_CAP				57

#define PIPE_PASSIVE_GATE_FUEL		58
#define PIPE_PASSIVE_GATE_AUX		59

#define PIPE_PUMP_FUEL				60
#define PIPE_PUMP_AUX				61

#define PIPE_CONNECTOR_FUEL			62
#define PIPE_CONNECTOR_AUX			63

#define PIPE_AUX_UVENT				64

#define PIPE_PVENT					65