cpp/openttd-patchpack/source Files · slope.h

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Location: cpp/openttd-patchpack/source/slope.h

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miham

(svn r4735) WebTranslator2 update to 2006-05-04 16:19:23
czech - 1 changed by Hadez (1)
dutch - 3 fixed by webfreakz (3)
german - 1 fixed, 3 changed by Neonox (3), moewe2 (1)
hungarian - 2 changed by miham (2)
polish - 9 changed by meush (9)
portuguese - 3 fixed, 3 changed by izhirahider (6)
romanian - 58 fixed by kneekoo (58)
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turkish - 1 fixed by jnmbk (1)

/* $Id$ */

#ifndef SLOPE_H
#define SLOPE_H

typedef enum Slope {
	SLOPE_FLAT  = 0x00,
	SLOPE_W     = 0x01,
	SLOPE_S     = 0x02,
	SLOPE_E     = 0x04,
	SLOPE_N     = 0x08,
	SLOPE_STEEP = 0x10,
	SLOPE_NW = SLOPE_N | SLOPE_W,
	SLOPE_SW = SLOPE_S | SLOPE_W,
	SLOPE_SE = SLOPE_S | SLOPE_E,
	SLOPE_NE = SLOPE_N | SLOPE_E,
	SLOPE_EW = SLOPE_E | SLOPE_W,
	SLOPE_NS = SLOPE_N | SLOPE_S,
	SLOPE_ELEVATED = SLOPE_N | SLOPE_E | SLOPE_S | SLOPE_W,
	SLOPE_NWS = SLOPE_N | SLOPE_W | SLOPE_S,
	SLOPE_WSE = SLOPE_W | SLOPE_S | SLOPE_E,
	SLOPE_SEN = SLOPE_S | SLOPE_E | SLOPE_N,
	SLOPE_ENW = SLOPE_E | SLOPE_N | SLOPE_W,
	SLOPE_STEEP_W = SLOPE_STEEP | SLOPE_NWS,
	SLOPE_STEEP_S = SLOPE_STEEP | SLOPE_WSE,
	SLOPE_STEEP_E = SLOPE_STEEP | SLOPE_SEN,
	SLOPE_STEEP_N = SLOPE_STEEP | SLOPE_ENW
} Slope;

static inline bool IsSteepSlope(Slope s)
{
	return (s & SLOPE_STEEP) != 0;
}

static inline Slope ComplementSlope(Slope s)
{
	assert(!IsSteepSlope(s));
	return (Slope)(0xF ^ s);
}

#endif