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Files
OpenRCT2/src/openrct2/world/Surface.cpp
2018-06-20 17:30:40 +02:00

58 lines
1.9 KiB
C++

/*****************************************************************************
* Copyright (c) 2014-2018 OpenRCT2 developers
*
* For a complete list of all authors, please refer to contributors.md
* Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
*
* OpenRCT2 is licensed under the GNU General Public License version 3.
*****************************************************************************/
#include "Surface.h"
int32_t surface_get_terrain(const rct_tile_element * element)
{
int32_t terrain = (element->properties.surface.terrain >> 5) & 7;
if (element->type & 1)
terrain |= (1 << 3);
return terrain;
}
int32_t surface_get_terrain_edge(const rct_tile_element * element)
{
int32_t terrain_edge = (element->properties.surface.slope >> 5) & 7;
if (element->type & 128)
terrain_edge |= (1 << 3);
return terrain_edge;
}
void surface_set_terrain(rct_tile_element * element, int32_t terrain)
{
// Bit 3 for terrain is stored in element.type bit 0
if (terrain & 8)
element->type |= 1;
else
element->type &= ~1;
// Bits 0, 1, 2 for terrain are stored in element.terrain bit 5, 6, 7
element->properties.surface.terrain &= ~0xE0;
element->properties.surface.terrain |= (terrain & 7) << 5;
}
void surface_set_terrain_edge(rct_tile_element * element, int32_t terrain)
{
// Bit 3 for terrain is stored in element.type bit 7
if (terrain & 8)
element->type |= 128;
else
element->type &= ~128;
// Bits 0, 1, 2 for terrain are stored in element.slope bit 5, 6, 7
element->properties.surface.slope &= ~TILE_ELEMENT_SURFACE_EDGE_STYLE_MASK;
element->properties.surface.slope |= (terrain & 7) << 5;
}
int32_t surface_get_water_height(const rct_tile_element * tileElement)
{
return tileElement->properties.surface.terrain & TILE_ELEMENT_SURFACE_WATER_HEIGHT_MASK;
}