OpenRCT2/src/openrct2/paint/Supports.cpp

1590 lines
48 KiB
C++

/*****************************************************************************
* Copyright (c) 2014-2023 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 "Supports.h"
#include "../interface/Viewport.h"
#include "../object/FootpathRailingsObject.h"
#include "../sprites.h"
#include "../util/Math.hpp"
#include "../world/Surface.h"
#include "Boundbox.h"
#include "Paint.SessionFlags.h"
#include "Paint.h"
#include "tile_element/Paint.TileElement.h"
/** rct2: 0x0097AF20, 0x0097AF21 */
// clang-format off
static constexpr CoordsXY SupportBoundBoxes[] = {
{ 4, 4 },
{ 28, 4 },
{ 4, 28 },
{ 28, 28 },
{ 16, 16 },
{ 16, 4 },
{ 4, 16 },
{ 28, 16 },
{ 16, 28 },
};
/** rct2: 0x0097AF32 */
static constexpr uint8_t _97AF32[] = {
5, 2, 5, 2, 5, 2, 5, 2,
7, 1, 7, 1, 7, 1, 7, 1,
6, 3, 6, 3, 6, 3, 6, 3,
8, 0, 8, 0, 8, 0, 8, 0,
5, 3, 6, 0, 8, 1, 7, 2,
1, 2, 1, 2, 1, 2, 1, 2,
0, 3, 0, 3, 0, 3, 0, 3,
3, 1, 3, 1, 3, 1, 3, 1,
2, 0, 2, 0, 2, 0, 2, 0,
6, 1, 6, 1, 6, 1, 6, 1,
5, 0, 5, 0, 5, 0, 5, 0,
8, 2, 8, 2, 8, 2, 8, 2,
7, 3, 7, 3, 7, 3, 7, 3,
6, 0, 8, 1, 7, 2, 5, 3,
0, 0, 0, 0, 0, 0, 0, 0,
2, 1, 2, 1, 2, 1, 2, 1,
1, 3, 1, 3, 1, 3, 1, 3,
3, 2, 3, 2, 3, 2, 3, 2,
1, 6, 1, 6, 1, 6, 1, 6,
3, 5, 3, 5, 3, 5, 3, 5,
0, 7, 0, 7, 0, 7, 0, 7,
2, 4, 2, 4, 2, 4, 2, 4,
8, 1, 7, 2, 5, 3, 6, 0,
4, 1, 4, 1, 4, 1, 4, 1,
4, 2, 4, 2, 4, 2, 4, 2,
4, 0, 4, 0, 4, 0, 4, 0,
4, 3, 4, 3, 4, 3, 4, 3,
2, 5, 2, 5, 2, 5, 2, 5,
0, 4, 0, 4, 0, 4, 0, 4,
3, 6, 3, 6, 3, 6, 3, 6,
1, 7, 1, 7, 1, 7, 1, 7,
7, 2, 5, 3, 6, 0, 8, 1,
8, 5, 8, 5, 8, 5, 8, 5,
7, 6, 7, 6, 7, 6, 7, 6,
6, 4, 6, 4, 6, 4, 6, 4,
5, 7, 5, 7, 5, 7, 5, 7,
};
/** rct2: 0x0097B052, 0x0097B053 */
static constexpr CoordsXY Loc97B052[] = {
{ -15, -1 },
{ 0, -2 },
{ -2, -1 },
{ -1, -15 },
{ -26, -1 },
{ 0, -2 },
{ -2, -1 },
{ -1, -26 },
};
/** rct2: 0x0097B062, 0x0097B063 */
static constexpr CoordsXY _97B062[] = {
{ 18, 3 },
{ 3, 18 },
{ 18, 3 },
{ 3, 18 },
{ 32, 3 },
{ 3, 32 },
{ 32, 3 },
{ 3, 32 }
};
/** rct2: 0x0097B072 */
static constexpr uint32_t _metalSupportTypeToCrossbeamImages[][8] = {
{ 3370, 3371, 3370, 3371, 3372, 3373, 3372, 3373 }, // MetalSupportType::Tubes
{ 3374, 3375, 3374, 3375, 3376, 3377, 3376, 3377 }, // MetalSupportType::Fork
{ 3374, 3375, 3374, 3375, 3376, 3377, 3376, 3377 }, // MetalSupportType::ForkAlt
{ 3370, 3371, 3370, 3371, 3372, 3373, 3372, 3373 }, // MetalSupportType::Boxed
{ 3374, 3375, 3374, 3375, 3376, 3377, 3376, 3377 }, // MetalSupportType::Stick
{ 3374, 3375, 3374, 3375, 3376, 3377, 3376, 3377 }, // MetalSupportType::StickAlt
{ 3378, 3383, 3378, 3383, 3380, 3385, 3380, 3385 }, // MetalSupportType::ThickCentred
{ 3378, 3383, 3378, 3383, 3380, 3385, 3380, 3385 }, // MetalSupportType::Thick
{ 3382, 3379, 3382, 3379, 3384, 3381, 3384, 3381 }, // MetalSupportType::ThickAlt
{ 3382, 3379, 3382, 3379, 3384, 3381, 3384, 3381 }, // MetalSupportType::ThickAltCentred
{ 3378, 3379, 3378, 3379, 3380, 3381, 3380, 3381 }, // MetalSupportType::Truss
{ 3386, 3387, 3386, 3387, 3388, 3389, 3388, 3389 }, // MetalSupportType::TubesInverted
{ 3370, 3371, 3370, 3371, 3372, 3373, 3372, 3373 }, // MetalSupportType::BoxedCoated
};
/** rct2: 0x0097B142 */
static constexpr uint8_t supportTypeToHeight[] = {
6, // MetalSupportType::Tubes
3, // MetalSupportType::Fork
3, // MetalSupportType::ForkAlt
6, // MetalSupportType::Boxed
3, // MetalSupportType::Stick
3, // MetalSupportType::StickAlt
6, // MetalSupportType::ThickCentred
6, // MetalSupportType::Thick
6, // MetalSupportType::ThickAlt
6, // MetalSupportType::ThickAltCentred
4, // MetalSupportType::Truss
3, // MetalSupportType::TubesInverted
6, // MetalSupportType::BoxedCoated
};
struct MetalSupportsImages {
uint16_t base_id;
uint16_t beam_id;
};
/** rct2: 0x0097B15C */
static constexpr MetalSupportsImages _97B15C[] = {
{ 3243, 3209 }, // MetalSupportType::Tubes
{ 3279, 3262 }, // MetalSupportType::Fork
{ 3298, 3262 }, // MetalSupportType::ForkAlt
{ 3334, 3317 }, // MetalSupportType::Boxed
{ 0, 3658 }, // MetalSupportType::Stick
{ 0, 3658 }, // MetalSupportType::StickAlt
{ 0, 3141 }, // MetalSupportType::ThickCentred
{ 0, 3158 }, // MetalSupportType::Thick
{ 0, 3175 }, // MetalSupportType::ThickAlt
{ 0, 3192 }, // MetalSupportType::ThickAltCentred
{ 0, 3124 }, // MetalSupportType::Truss
{ 3243, 3209 }, // MetalSupportType::TubesInverted
{ 3334, 3353 }, // MetalSupportType::BoxedCoated
};
/** rct2: 0x0097B190 */
static constexpr MetalSupportsImages _97B190[] = {
{ 3243, 3226 }, // 3209
{ 3279, 3262 },
{ 3298, 3262 },
{ 3334, 3317 },
{ 0, 3658 },
{ 0, 3658 },
{ 0, 3141 },
{ 0, 3158 },
{ 0, 3175 },
{ 0, 3192 },
{ 0, 3124 },
{ 3243, 3226 }, // 3209
{ 3334, 3353 },
};
/** rct2: 0x0097B404 */
static constexpr uint8_t metal_supports_slope_image_map[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0, 16, 0, 17, 18, 0,
};
struct SupportsIdDescriptor {
uint16_t full;
uint16_t half;
uint16_t flat;
uint16_t slope;
};
/* 0x0097B1C4 */
static constexpr SupportsIdDescriptor WoodenSupportImageIds[] = {
{ 3392, 3393, 3394, 3536 },
{ 3390, 3391, 3394, 3514 },
{ 3558, 3559, 3560, 3570 },
{ 3561, 3562, 3563, 3592 },
{ 3564, 3565, 3566, 3614 },
{ 3567, 3568, 3569, 3636 },
{ 3677, 3678, 3680, 3739 },
{ 3675, 3676, 3679, 3717 },
{ 3761, 3762, 3763, 3773 },
{ 3764, 3765, 3766, 3795 },
{ 3767, 3768, 3769, 3817 },
{ 3770, 3771, 3772, 3839 },
};
static constexpr uint16_t WoodenCurveSupportImageIds0[81] = {
3465,
3466,
3467,
3468,
3469,
3470,
3471,
3472,
3473,
3474,
3475,
3476,
3477,
3478,
3479,
3480,
3481,
3482,
3483,
3484,
3485,
3486,
3487,
3488,
3489,
3490,
3491,
3492,
3493,
3494,
3495,
3496,
3497,
3498,
3499,
3500,
3501,
3502,
3503,
3504,
3505,
3506,
3507,
3508,
3509,
3510,
3511,
3512,
3513,
SPR_G2_SUPPORT_BEGIN,
SPR_G2_SUPPORT_BEGIN + 1,
SPR_G2_SUPPORT_BEGIN + 2,
SPR_G2_SUPPORT_BEGIN + 3,
SPR_G2_SUPPORT_BEGIN + 4,
SPR_G2_SUPPORT_BEGIN + 5,
SPR_G2_SUPPORT_BEGIN + 6,
SPR_G2_SUPPORT_BEGIN + 7,
SPR_G2_SUPPORT_BEGIN + 8,
SPR_G2_SUPPORT_BEGIN + 9,
SPR_G2_SUPPORT_BEGIN + 10,
SPR_G2_SUPPORT_BEGIN + 11,
SPR_G2_SUPPORT_BEGIN + 12,
SPR_G2_SUPPORT_BEGIN + 13,
SPR_G2_SUPPORT_BEGIN + 14,
SPR_G2_SUPPORT_BEGIN + 15,
SPR_G2_SUPPORT_BEGIN + 16,
SPR_G2_SUPPORT_BEGIN + 17,
SPR_G2_SUPPORT_BEGIN + 18,
SPR_G2_SUPPORT_BEGIN + 19,
SPR_G2_SUPPORT_BEGIN + 20,
SPR_G2_SUPPORT_BEGIN + 21,
SPR_G2_SUPPORT_BEGIN + 22,
SPR_G2_SUPPORT_BEGIN + 23,
SPR_G2_SUPPORT_BEGIN + 24,
SPR_G2_SUPPORT_BEGIN + 25,
SPR_G2_SUPPORT_BEGIN + 26,
SPR_G2_SUPPORT_BEGIN + 27,
SPR_G2_SUPPORT_BEGIN + 28,
SPR_G2_SUPPORT_BEGIN + 29,
SPR_G2_SUPPORT_BEGIN + 30,
SPR_G2_SUPPORT_BEGIN + 31,
};
static constexpr uint16_t WoodenCurveSupportImageIds1[81] = {
3681, 3682, 3683, 3684, 3685, 3686, 3687, 3688, 3689, 3690, 3691, 3692, 3693, 3694, 3695, 3696, 3697,
3698, 3699, 3700, 3701, 3702, 3703, 3704, 3705, 3706, 3707, 3708, 3709, 3710, 3711, 3712, 3713, 3714,
3715, 3716, 3717, 3718, 3719, 3720, 3721, 3722, 3723, 3724, 3725, 3726, 3727, 3728, 3729,
};
/* 0x0097B224 */
static constexpr const uint16_t* WoodenCurveSupportImageIds[12] = {
WoodenCurveSupportImageIds0,
WoodenCurveSupportImageIds0,
nullptr,
nullptr,
nullptr,
nullptr,
WoodenCurveSupportImageIds1,
WoodenCurveSupportImageIds1,
nullptr,
nullptr,
nullptr,
nullptr,
};
struct UnkSupportsDescriptor {
BoundBoxXYZ bounding_box;
uint8_t var_6;
uint8_t var_7;
};
/* 0x0097B23C */
static constexpr UnkSupportsDescriptor Byte97B23C[] = {
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Flat to gentle
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Gentle to flat
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Gentle slope
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Gentle to steep
{{{10, 0, 0}, {10, 32, 44}}, 1, 1},
{{{0, 10, 0}, {32, 10, 44}}, 1, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Steep to gentle
{{{10, 0, 0}, {10, 32, 44}}, 1, 1},
{{{0, 10, 0}, {32, 10, 44}}, 1, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Steep slope
{{{10, 0, 2}, {10, 32, 76}}, 1, 1},
{{{0, 10, 2}, {32, 10, 76}}, 1, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 4}}, 0, 1}, // Slope
{{{0, 0, 0}, {1, 1, 4}}, 0, 1},
{{{0, 0, 0}, {1, 1, 4}}, 0, 1},
{{{0, 0, 0}, {1, 1, 4}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Flat to steep small
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Steep to flat small
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // ?
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // ?
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // ?
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{2, 2, 1}, {28, 28, 2}}, 0, 1}, // Large scenery (all directions)
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Flat to steep large 1
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Flat to steep large 2
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Flat to steep large 3
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Flat to steep large 4
{{{10, 0, 2}, {10, 32, 52}}, 1, 1},
{{{0, 10, 2}, {32, 10, 52}}, 1, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Steep to flat large 1
{{{10, 0, 2}, {10, 32, 76}}, 1, 1},
{{{0, 10, 2}, {32, 10, 76}}, 1, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Steep to flat large 2
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Steep to flat large 3
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1}, // Steep to flat large 4
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
{{{0, 0, 0}, {1, 1, 8}}, 0, 1},
};
/* 0x0098D8D4 */
static constexpr UnkSupportsDescriptor Byte98D8D4[] = {
{{{0, 0, 0}, {1, 1, 4}}, 0, 1},
{{{0, 0, 0}, {1, 1, 4}}, 0, 1},
{{{0, 0, 0}, {1, 1, 4}}, 0, 1},
{{{0, 0, 0}, {1, 1, 4}}, 0, 1},
};
/* 0x0097B3C4 */
static constexpr uint16_t word_97B3C4[] = {
0,
0,
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
0,
0,
0,
0,
0,
0,
0,
0,
14,
0,
0,
0,
17,
0,
16,
15,
0,
};
// clang-format on
static WoodenSupportSubType rotatedWoodenSupportSubTypes[6][NumOrthogonalDirections] = {
{
WoodenSupportSubType::NeSw,
WoodenSupportSubType::NwSe,
WoodenSupportSubType::NeSw,
WoodenSupportSubType::NwSe,
},
{
WoodenSupportSubType::NwSe,
WoodenSupportSubType::NeSw,
WoodenSupportSubType::NwSe,
WoodenSupportSubType::NeSw,
},
{
WoodenSupportSubType::Corner0,
WoodenSupportSubType::Corner1,
WoodenSupportSubType::Corner2,
WoodenSupportSubType::Corner3,
},
{
WoodenSupportSubType::Corner1,
WoodenSupportSubType::Corner2,
WoodenSupportSubType::Corner3,
WoodenSupportSubType::Corner0,
},
{
WoodenSupportSubType::Corner2,
WoodenSupportSubType::Corner3,
WoodenSupportSubType::Corner0,
WoodenSupportSubType::Corner1,
},
{
WoodenSupportSubType::Corner3,
WoodenSupportSubType::Corner0,
WoodenSupportSubType::Corner1,
WoodenSupportSubType::Corner2,
},
};
/**
* Draw repeated supports for left over space
*
* @param supportType
* @param imageTemplate
* @param heightSteps
* @param session
* @param baseHeight
* @param hasSupports
*/
static void WoodenABPaintRepeatedSupports(
int32_t supportType, const ImageId& imageTemplate, int16_t heightSteps, PaintSession& session, uint16_t& baseHeight,
bool& hasSupports)
{
while (heightSteps > 0)
{
const bool isHalf = baseHeight & 0x10 || heightSteps == 1 || baseHeight + WATER_HEIGHT_STEP == session.WaterHeight;
if (isHalf)
{
// Half support
auto imageId = imageTemplate.WithIndex(WoodenSupportImageIds[supportType].half);
uint8_t boundBoxHeight = (heightSteps == 1) ? 7 : 12;
PaintAddImageAsParent(session, imageId, { 0, 0, baseHeight }, { 32, 32, boundBoxHeight });
baseHeight += 16;
heightSteps -= 1;
}
else
{
// Full support
auto imageId = imageTemplate.WithIndex(WoodenSupportImageIds[supportType].full);
uint8_t boundBoxHeight = (heightSteps == 2) ? 23 : 28;
PaintAddImageAsParent(session, imageId, { 0, 0, baseHeight }, { 32, 32, boundBoxHeight });
baseHeight += 32;
heightSteps -= 2;
}
hasSupports = true;
}
}
/**
* Draw special pieces, e.g. curved supports.
*/
static bool WoodenABSupportPaintSetupPaintSpecial(
PaintSession& session, int32_t supportType, int32_t special, const ImageId& imageTemplate, uint16_t baseHeight,
bool hasSupports)
{
uint16_t specialIndex = (special - 1) & 0xFFFF;
const UnkSupportsDescriptor& supportsDesc = Byte97B23C[specialIndex];
// TODO: Byte97B23C[specialIndex].var_7 is never 0
if (WoodenCurveSupportImageIds[supportType] != nullptr && WoodenCurveSupportImageIds[supportType][specialIndex] != 0
&& supportsDesc.var_7 != 0)
{
hasSupports = true;
auto imageId = imageTemplate.WithIndex(WoodenCurveSupportImageIds[supportType][specialIndex]);
auto boundBox = supportsDesc.bounding_box;
boundBox.offset.z += baseHeight;
if (supportsDesc.var_6 == 0 || session.WoodenSupportsPrependTo == nullptr)
{
PaintAddImageAsParent(session, imageId, { 0, 0, baseHeight }, boundBox);
}
else
{
auto* paintStruct = PaintAddImageAsOrphan(session, imageId, { 0, 0, baseHeight }, boundBox);
if (paintStruct != nullptr)
{
session.WoodenSupportsPrependTo->Children = paintStruct;
}
}
}
return hasSupports;
}
/**
* Adds paint structs for wooden supports.
* rct2: 0x006629BC
* @param supportType (edi) Type and direction of supports.
* @param special (ax) Used for curved supports.
* @param height (dx) The height of the supports.
* @param imageTemplate (ebp) The colour and palette flags for the support sprites.
* @param[out] underground (Carry flag) true if underground.
* @returns (al) true if any supports have been drawn, otherwise false.
*/
bool WoodenASupportsPaintSetup(
PaintSession& session, int32_t supportType, int32_t special, int32_t height, ImageId imageTemplate)
{
if (!(session.Flags & PaintSessionFlags::PassedSurface))
{
return false;
}
if (session.ViewFlags & VIEWPORT_FLAG_HIDE_SUPPORTS)
{
if (session.ViewFlags & VIEWPORT_FLAG_INVISIBLE_SUPPORTS)
{
return false;
}
imageTemplate = ImageId().WithTransparency(FilterPaletteID::PaletteDarken1);
}
uint16_t baseHeight = Floor2(session.Support.height + 15, 16);
int16_t supportLength = height - baseHeight;
if (supportLength < 0)
{
return false;
}
int16_t heightSteps = supportLength / 16;
bool hasSupports = false;
bool drawFlatPiece = false;
// Draw base support (usually shaped to the slope)
auto slope = session.Support.slope;
if (slope & SUPPORTS_SLOPE_5)
{
// Above scenery (just put a base piece above it)
drawFlatPiece = true;
}
else if (slope & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT)
{
// Steep diagonal (place the correct shaped support for the slope)
heightSteps -= 2;
if (heightSteps < 0)
{
return false;
}
auto imageIndex = WoodenSupportImageIds[supportType].slope;
if (imageIndex == 0)
{
drawFlatPiece = true;
}
else
{
auto imageId = imageTemplate.WithIndex(imageIndex + word_97B3C4[slope & TILE_ELEMENT_SURFACE_SLOPE_MASK]);
PaintAddImageAsParent(session, imageId, { 0, 0, baseHeight }, { { 0, 0, baseHeight + 2 }, { 32, 32, 11 } });
PaintAddImageAsParent(
session, imageId.WithIndexOffset(4), { 0, 0, baseHeight + 16 },
{ { 0, 0, baseHeight + 16 + 2 }, { 32, 32, 11 } });
hasSupports = true;
}
baseHeight += 32;
}
else if ((slope & TILE_ELEMENT_SLOPE_ALL_CORNERS_UP) != 0)
{
// 1 to 3 quarters up
heightSteps--;
if (heightSteps < 0)
{
return false;
}
auto imageIndex = WoodenSupportImageIds[supportType].slope;
if (imageIndex == 0)
{
drawFlatPiece = true;
}
else
{
auto imageId = imageTemplate.WithIndex(imageIndex + word_97B3C4[slope & TILE_ELEMENT_SURFACE_SLOPE_MASK]);
PaintAddImageAsParent(session, imageId, { 0, 0, baseHeight }, { { 0, 0, baseHeight + 2 }, { 32, 32, 11 } });
hasSupports = true;
}
baseHeight += 16;
}
// Draw flat base support
if (drawFlatPiece)
{
auto imageId = imageTemplate.WithIndex(WoodenSupportImageIds[supportType].flat);
PaintAddImageAsParent(session, imageId, { 0, 0, baseHeight - 2 }, { 32, 32, 0 });
hasSupports = true;
}
WoodenABPaintRepeatedSupports(supportType, imageTemplate, heightSteps, session, baseHeight, hasSupports);
if (special != 0)
{
hasSupports = WoodenABSupportPaintSetupPaintSpecial(session, supportType, special, imageTemplate, baseHeight, false);
}
return hasSupports;
}
static int32_t GetSpecialOffsetForTransitionType(WoodenSupportTransitionType transitionType, Direction direction)
{
if (transitionType == WoodenSupportTransitionType::None)
return 0;
// "Special" values are an offset into tables like Byte97B23C, plus 1.
// Save for WoodenSupportTransitionType::LargeScenery, there are four entries (one per direction) for every
// transition type. While these tables will have to be refactored in due course, we can only do so once all
// drawing functions use WoodenSupportTransitionType instead of passing the "special" value directly.
int32_t specialOffset = 0;
if (transitionType < WoodenSupportTransitionType::Scenery)
specialOffset = (EnumValue(transitionType) * NumOrthogonalDirections) + direction;
else if (transitionType == WoodenSupportTransitionType::Scenery)
specialOffset = (EnumValue(transitionType) * NumOrthogonalDirections);
else
specialOffset = (EnumValue(transitionType) * NumOrthogonalDirections) + direction - 3;
return specialOffset + 1;
}
bool WoodenASupportsPaintSetup(
PaintSession& session, WoodenSupportType supportType, WoodenSupportSubType subType, int32_t height, ImageId imageTemplate,
WoodenSupportTransitionType transitionType, Direction direction)
{
int32_t oldSupportType = (EnumValue(supportType) * 6) + EnumValue(subType);
int32_t special = GetSpecialOffsetForTransitionType(transitionType, direction);
return WoodenASupportsPaintSetup(session, oldSupportType, special, height, imageTemplate);
}
bool WoodenASupportsPaintSetupRotated(
PaintSession& session, WoodenSupportType supportType, WoodenSupportSubType subType, Direction direction, int32_t height,
ImageId imageTemplate, WoodenSupportTransitionType transitionType)
{
subType = rotatedWoodenSupportSubTypes[EnumValue(subType)][direction];
return WoodenASupportsPaintSetup(session, supportType, subType, height, imageTemplate, transitionType, direction);
}
/**
* Wooden supports
* rct2: 0x00662D5C
*
* @param supportType (edi)
* @param special (ax)
* @param height (dx)
* @param imageTemplate (ebp)
* @param[out] underground (Carry Flag)
*
* @return (al) whether supports have been drawn
*/
static bool WoodenBSupportsPaintSetup(
PaintSession& session, int32_t supportType, int32_t special, int32_t height, ImageId imageTemplate)
{
if (!(session.Flags & PaintSessionFlags::PassedSurface))
{
return false;
}
if (session.ViewFlags & VIEWPORT_FLAG_HIDE_SUPPORTS)
{
if (session.ViewFlags & VIEWPORT_FLAG_INVISIBLE_SUPPORTS)
{
return false;
}
imageTemplate = ImageId().WithTransparency(FilterPaletteID::PaletteDarken1);
}
uint16_t baseHeight = Floor2(session.Support.height + 15, 16);
int16_t supportLength = height - baseHeight;
if (supportLength < 0)
{
return false;
}
int16_t heightSteps = supportLength / 16;
bool hasSupports = false;
bool drawFlatPiece = false;
// Draw base support (usually shaped to the slope)
auto slope = session.Support.slope;
if (slope & SUPPORTS_SLOPE_5)
{
// Above scenery (just put a base piece above it)
drawFlatPiece = true;
}
else if (slope & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT)
{
// Steep diagonal (place the correct shaped support for the slope)
heightSteps -= 2;
if (heightSteps < 0)
{
return false;
}
auto imageIndex = WoodenSupportImageIds[supportType].slope;
if (imageIndex == 0)
{
drawFlatPiece = true;
}
else
{
auto imageId = imageTemplate.WithIndex(imageIndex + word_97B3C4[slope & TILE_ELEMENT_SURFACE_SLOPE_MASK]);
PaintAddImageAsParent(session, imageId, { 0, 0, baseHeight }, { { 0, 0, baseHeight + 2 }, { 32, 32, 11 } });
PaintAddImageAsParent(
session, imageId.WithIndexOffset(4), { 0, 0, baseHeight + 16 },
{ { 0, 0, baseHeight + 16 + 2 }, { 32, 32, 3 } });
hasSupports = true;
}
baseHeight += 32;
}
else if ((slope & TILE_ELEMENT_SLOPE_ALL_CORNERS_UP) != 0)
{
// 1 to 3 quarters up
heightSteps--;
if (heightSteps < 0)
{
return false;
}
auto imageIndex = WoodenSupportImageIds[supportType].slope;
if (imageIndex == 0)
{
drawFlatPiece = true;
}
else
{
auto imageId = imageTemplate.WithIndex(imageIndex + word_97B3C4[slope & TILE_ELEMENT_SURFACE_SLOPE_MASK]);
PaintAddImageAsParent(session, imageId, { 0, 0, baseHeight }, { { 0, 0, baseHeight + 2 }, { 32, 32, 3 } });
hasSupports = true;
}
baseHeight += 16;
}
// Draw flat base support
if (drawFlatPiece)
{
if (heightSteps > 0)
{
auto imageId = imageTemplate.WithIndex(WoodenSupportImageIds[supportType].flat);
PaintAddImageAsParent(session, imageId, { 0, 0, baseHeight - 2 }, { 32, 32, 0 });
hasSupports = true;
}
}
WoodenABPaintRepeatedSupports(supportType, imageTemplate, heightSteps, session, baseHeight, hasSupports);
if (special != 0)
{
hasSupports = WoodenABSupportPaintSetupPaintSpecial(session, supportType, special, imageTemplate, baseHeight, false);
}
return hasSupports;
}
bool WoodenBSupportsPaintSetup(
PaintSession& session, WoodenSupportType supportType, WoodenSupportSubType subType, int32_t height, ImageId imageTemplate,
WoodenSupportTransitionType transitionType, Direction direction)
{
int32_t oldSupportType = (EnumValue(supportType) * 6) + EnumValue(subType);
int32_t special = GetSpecialOffsetForTransitionType(transitionType, direction);
return WoodenBSupportsPaintSetup(session, oldSupportType, special, height, imageTemplate);
}
bool WoodenBSupportsPaintSetupRotated(
PaintSession& session, WoodenSupportType supportType, WoodenSupportSubType subType, Direction direction, int32_t height,
ImageId imageTemplate, WoodenSupportTransitionType transitionType)
{
subType = rotatedWoodenSupportSubTypes[EnumValue(subType)][direction];
return WoodenBSupportsPaintSetup(session, supportType, subType, height, imageTemplate, transitionType, direction);
}
/**
* Metal pole supports
* @param supportType (edi)
* @param segment (ebx)
* @param special (ax)
* @param height (edx)
* @param imageTemplate (ebp)
* rct2: 0x00663105
*/
bool MetalASupportsPaintSetup(
PaintSession& session, MetalSupportType supportTypeMember, MetalSupportPlace placement, int32_t special, int32_t height,
ImageId imageTemplate)
{
uint8_t segment = EnumValue(placement);
auto supportType = EnumValue(supportTypeMember);
SupportHeight* supportSegments = session.SupportSegments;
if (!(session.Flags & PaintSessionFlags::PassedSurface))
{
return false;
}
if (session.ViewFlags & VIEWPORT_FLAG_HIDE_SUPPORTS)
{
if (session.ViewFlags & VIEWPORT_FLAG_INVISIBLE_SUPPORTS)
{
return false;
}
imageTemplate = ImageId(0).WithTransparency(FilterPaletteID::PaletteDarken1);
}
int16_t originalHeight = height;
int32_t originalSegment = segment;
const uint8_t rotation = session.CurrentRotation;
int16_t unk9E3294 = -1;
if (height < supportSegments[segment].height)
{
unk9E3294 = height;
height -= supportTypeToHeight[supportType];
if (height < 0)
return false;
const uint8_t* esi = &(_97AF32[rotation * 2]);
uint8_t newSegment = esi[segment * 8];
if (height <= supportSegments[newSegment].height)
{
esi += 72;
newSegment = esi[segment * 8];
if (height <= supportSegments[newSegment].height)
{
esi += 72;
newSegment = esi[segment * 8];
if (height <= supportSegments[newSegment].height)
{
esi += 72;
newSegment = esi[segment * 8];
if (height <= supportSegments[newSegment].height)
{
return false;
}
}
}
}
uint8_t ebp = esi[segment * 8 + 1];
auto offset = CoordsXYZ{ SupportBoundBoxes[segment] + Loc97B052[ebp], height };
auto boundBoxLength = CoordsXYZ(_97B062[ebp], 1);
auto image_id = imageTemplate.WithIndex(_metalSupportTypeToCrossbeamImages[supportType][ebp]);
PaintAddImageAsParent(session, image_id, offset, boundBoxLength);
segment = newSegment;
}
int16_t si = height;
if (supportSegments[segment].slope & SUPPORTS_SLOPE_5 || height - supportSegments[segment].height < 6
|| _97B15C[supportType].base_id == 0)
{
height = supportSegments[segment].height;
}
else
{
int8_t xOffset = SupportBoundBoxes[segment].x;
int8_t yOffset = SupportBoundBoxes[segment].y;
uint32_t imageIndex = _97B15C[supportType].base_id;
imageIndex += metal_supports_slope_image_map[supportSegments[segment].slope & TILE_ELEMENT_SURFACE_SLOPE_MASK];
auto image_id = imageTemplate.WithIndex(imageIndex);
PaintAddImageAsParent(session, image_id, { xOffset, yOffset, supportSegments[segment].height }, { 0, 0, 5 });
height = supportSegments[segment].height + 6;
}
// Work out if a small support segment required to bring support to normal
// size (aka floor2(x, 16))
int16_t heightDiff = Floor2(height + 16, 16);
if (heightDiff > si)
{
heightDiff = si;
}
heightDiff -= height;
if (heightDiff > 0)
{
int8_t xOffset = SupportBoundBoxes[segment].x;
int8_t yOffset = SupportBoundBoxes[segment].y;
uint32_t imageIndex = _97B15C[supportType].beam_id;
imageIndex += heightDiff - 1;
auto image_id = imageTemplate.WithIndex(imageIndex);
PaintAddImageAsParent(session, image_id, { xOffset, yOffset, height }, { 0, 0, heightDiff - 1 });
}
height += heightDiff;
// 6632e6
for (uint8_t count = 0;; count++)
{
if (count >= 4)
count = 0;
int16_t z = height + 16;
if (z > si)
{
z = si;
}
z -= height;
if (z <= 0)
break;
int8_t xOffset = SupportBoundBoxes[segment].x;
int8_t yOffset = SupportBoundBoxes[segment].y;
uint32_t imageIndex = _97B15C[supportType].beam_id;
imageIndex += z - 1;
if (count == 3 && z == 0x10)
imageIndex++;
auto image_id = imageTemplate.WithIndex(imageIndex);
PaintAddImageAsParent(session, image_id, { xOffset, yOffset, height }, { 0, 0, z - 1 });
height += z;
}
supportSegments[segment].height = unk9E3294;
supportSegments[segment].slope = 0x20;
height = originalHeight;
segment = originalSegment;
if (special == 0)
return true;
if (special < 0)
{
special = -special;
height--;
}
CoordsXYZ boundBoxOffset = CoordsXYZ(SupportBoundBoxes[segment], height);
si = height + special;
while (1)
{
int16_t z = height + 16;
if (z > si)
{
z = si;
}
z -= height;
if (z <= 0)
break;
int8_t xOffset = SupportBoundBoxes[segment].x;
int8_t yOffset = SupportBoundBoxes[segment].y;
uint32_t imageIndex = _97B190[supportType].beam_id;
imageIndex += z - 1;
auto image_id = imageTemplate.WithIndex(imageIndex);
PaintAddImageAsParent(session, image_id, { xOffset, yOffset, height }, { boundBoxOffset, { 0, 0, 0 } });
height += z;
}
return true;
}
/**
* Metal pole supports
* rct2: 0x00663584
*
* @param supportType (edi)
* @param segment (ebx)
* @param special (ax)
* @param height (edx)
* @param imageTemplate (ebp)
*
* @return (Carry Flag)
*/
bool MetalBSupportsPaintSetup(
PaintSession& session, MetalSupportType supportTypeMember, MetalSupportPlace placement, int32_t special, int32_t height,
ImageId imageTemplate)
{
uint8_t segment = EnumValue(placement);
auto supportType = EnumValue(supportTypeMember);
SupportHeight* supportSegments = session.SupportSegments;
uint8_t originalSegment = segment;
if (!(session.Flags & PaintSessionFlags::PassedSurface))
{
return false; // AND
}
if (session.ViewFlags & VIEWPORT_FLAG_HIDE_SUPPORTS)
{
if (session.ViewFlags & VIEWPORT_FLAG_INVISIBLE_SUPPORTS)
{
return false;
}
imageTemplate = ImageId(0).WithTransparency(FilterPaletteID::PaletteDarken1);
}
uint16_t _9E3294 = 0xFFFF;
int32_t baseHeight = height;
if (height < supportSegments[segment].height)
{
_9E3294 = height;
baseHeight -= supportTypeToHeight[supportType];
if (baseHeight < 0)
{
return false; // AND
}
uint16_t baseIndex = session.CurrentRotation * 2;
uint8_t ebp = _97AF32[baseIndex + segment * 8];
if (baseHeight <= supportSegments[ebp].height)
{
baseIndex += 9 * 4 * 2; // 9 segments, 4 directions, 2 values
uint8_t ebp2 = _97AF32[baseIndex + segment * 8];
if (baseHeight <= supportSegments[ebp2].height)
{
baseIndex += 9 * 4 * 2;
uint8_t ebp3 = _97AF32[baseIndex + segment * 8];
if (baseHeight <= supportSegments[ebp3].height)
{
baseIndex += 9 * 4 * 2;
uint8_t ebp4 = _97AF32[baseIndex + segment * 8];
if (baseHeight <= supportSegments[ebp4].height)
{
return true; // STC
}
}
}
}
ebp = _97AF32[baseIndex + segment * 8 + 1];
if (ebp >= 4)
{
return true; // STC
}
PaintAddImageAsParent(
session, imageTemplate.WithIndex(_metalSupportTypeToCrossbeamImages[supportType][ebp]),
{ SupportBoundBoxes[originalSegment] + Loc97B052[ebp], baseHeight }, { _97B062[ebp], 1 });
}
int32_t si = baseHeight;
if ((supportSegments[segment].slope & 0x20) || (baseHeight - supportSegments[segment].height < 6)
|| (_97B15C[supportType].base_id == 0))
{
baseHeight = supportSegments[segment].height;
}
else
{
uint32_t imageOffset = metal_supports_slope_image_map[supportSegments[segment].slope & TILE_ELEMENT_SURFACE_SLOPE_MASK];
uint32_t imageId = _97B15C[supportType].base_id + imageOffset;
PaintAddImageAsParent(
session, imageTemplate.WithIndex(imageId), { SupportBoundBoxes[segment], supportSegments[segment].height },
{ 0, 0, 5 });
baseHeight = supportSegments[segment].height + 6;
}
int16_t heightDiff = Floor2(baseHeight + 16, 16);
if (heightDiff > si)
{
heightDiff = si;
}
heightDiff -= baseHeight;
if (heightDiff > 0)
{
PaintAddImageAsParent(
session, imageTemplate.WithIndex(_97B15C[supportType].beam_id + (heightDiff - 1)),
{ SupportBoundBoxes[segment], baseHeight }, { 0, 0, heightDiff - 1 });
}
baseHeight += heightDiff;
int16_t endHeight;
int32_t i = 1;
while (true)
{
endHeight = baseHeight + 16;
if (endHeight > si)
{
endHeight = si;
}
int16_t beamLength = endHeight - baseHeight;
if (beamLength <= 0)
{
break;
}
uint32_t imageId = _97B15C[supportType].beam_id + (beamLength - 1);
if (i % 4 == 0)
{
// Each fourth run, draw a special image
if (beamLength == 16)
{
imageId += 1;
}
}
PaintAddImageAsParent(
session, imageTemplate.WithIndex(imageId), { SupportBoundBoxes[segment], baseHeight }, { 0, 0, beamLength - 1 });
baseHeight += beamLength;
i++;
}
supportSegments[segment].height = _9E3294;
supportSegments[segment].slope = 0x20;
if (special != 0)
{
baseHeight = height;
si = height + special;
while (true)
{
endHeight = baseHeight + 16;
if (endHeight > si)
{
endHeight = si;
}
int16_t beamLength = endHeight - baseHeight;
if (beamLength <= 0)
{
break;
}
uint32_t imageId = _97B15C[supportType].beam_id + (beamLength - 1);
PaintAddImageAsParent(
session, imageTemplate.WithIndex(imageId), { SupportBoundBoxes[originalSegment], baseHeight },
{ { SupportBoundBoxes[originalSegment], height }, { 0, 0, 0 } });
baseHeight += beamLength;
}
}
return false; // AND
}
/**
* rct2: 0x006A2ECC
*
* @param supportType (edi)
* @param special (ax)
* @param height (dx)
* @param imageTemplate (ebp)
* @param railingsDescriptor (0x00F3EF6C)
* @param[out] underground (Carry Flag)
*
* @return Whether supports were drawn
*/
bool PathASupportsPaintSetup(
PaintSession& session, int32_t supportType, int32_t special, int32_t height, ImageId imageTemplate,
const FootpathPaintInfo& pathPaintInfo, bool* underground)
{
if (underground != nullptr)
{
*underground = false; // AND
}
if (!(session.Flags & PaintSessionFlags::PassedSurface))
{
return false;
}
if (session.ViewFlags & VIEWPORT_FLAG_HIDE_SUPPORTS)
{
if (session.ViewFlags & VIEWPORT_FLAG_INVISIBLE_SUPPORTS)
{
return false;
}
imageTemplate = ImageId().WithTransparency(FilterPaletteID::PaletteDarken1);
}
uint16_t baseHeight = Ceil2(session.Support.height, 16);
int32_t supportLength = height - baseHeight;
if (supportLength < 0)
{
if (underground != nullptr)
*underground = true; // STC
return false;
}
bool hasSupports = false;
int16_t heightSteps = supportLength / 16;
if (session.Support.slope & 0x20)
{
// save dx2
PaintAddImageAsParent(
session, imageTemplate.WithIndex(pathPaintInfo.BridgeImageId + 48), { 0, 0, baseHeight - 2 }, { 32, 32, 0 });
hasSupports = true;
}
else if (session.Support.slope & 0x10)
{
heightSteps -= 2;
if (heightSteps < 0)
{
if (underground != nullptr)
*underground = true; // STC
return false;
}
uint32_t imageId = (supportType * 24) + word_97B3C4[session.Support.slope & TILE_ELEMENT_SURFACE_SLOPE_MASK]
+ pathPaintInfo.BridgeImageId;
PaintAddImageAsParent(
session, imageTemplate.WithIndex(imageId), { 0, 0, baseHeight }, { { 0, 0, baseHeight + 2 }, { 32, 32, 11 } });
baseHeight += 16;
PaintAddImageAsParent(
session, imageTemplate.WithIndex(imageId + 4), { 0, 0, baseHeight }, { { 0, 0, baseHeight + 2 }, { 32, 32, 11 } });
baseHeight += 16;
hasSupports = true;
}
else if (session.Support.slope & 0x0F)
{
heightSteps -= 1;
if (heightSteps < 0)
{
if (underground != nullptr)
*underground = true; // STC
return false;
}
uint32_t ebx = (supportType * 24) + word_97B3C4[session.Support.slope & TILE_ELEMENT_SURFACE_SLOPE_MASK]
+ pathPaintInfo.BridgeImageId;
PaintAddImageAsParent(
session, imageTemplate.WithIndex(ebx), { 0, 0, baseHeight }, { { 0, 0, baseHeight + 2 }, { 32, 32, 11 } });
hasSupports = true;
baseHeight += 16;
}
while (heightSteps > 0)
{
if (baseHeight & 0x10 || heightSteps == 1 || baseHeight + WATER_HEIGHT_STEP == session.WaterHeight)
{
uint32_t imageId = (supportType * 24) + pathPaintInfo.BridgeImageId + 23;
PaintAddImageAsParent(
session, imageTemplate.WithIndex(imageId), { 0, 0, baseHeight }, { 32, 32, ((heightSteps == 1) ? 7 : 12) });
heightSteps -= 1;
baseHeight += 16;
hasSupports = true;
}
else
{
uint32_t imageId = (supportType * 24) + pathPaintInfo.BridgeImageId + 22;
PaintAddImageAsParent(
session, imageTemplate.WithIndex(imageId), { 0, 0, baseHeight }, { 32, 32, ((heightSteps == 2) ? 23 : 28) });
heightSteps -= 2;
baseHeight += 32;
hasSupports = true;
}
}
if (special != 0)
{
uint16_t specialIndex = (special - 1) & 0xFFFF;
ImageIndex imageIndex = pathPaintInfo.BridgeImageId + 55 + specialIndex;
const UnkSupportsDescriptor& supportsDesc = Byte98D8D4[specialIndex];
auto boundBox = supportsDesc.bounding_box;
boundBox.offset.z += baseHeight;
if (supportsDesc.var_6 == 0 || session.WoodenSupportsPrependTo == nullptr)
{
PaintAddImageAsParent(session, imageTemplate.WithIndex(imageIndex), { 0, 0, baseHeight }, boundBox);
hasSupports = true;
}
else
{
PaintStruct* paintStruct = PaintAddImageAsOrphan(
session, imageTemplate.WithIndex(imageIndex), { 0, 0, baseHeight }, boundBox);
hasSupports = true;
if (paintStruct != nullptr)
{
session.WoodenSupportsPrependTo->Children = paintStruct;
}
}
}
if (underground != nullptr)
*underground = false; // AND
return hasSupports;
}
/**
*
* rct2: 0x006A326B
*
* @param segment (ebx)
* @param special (ax)
* @param height (dx)
* @param imageTemplate (ebp)
* @param railingsDescriptor (0x00F3EF6C)
*
* @return Whether supports were drawn
*/
bool PathBSupportsPaintSetup(
PaintSession& session, int32_t segment, int32_t special, int32_t height, ImageId imageTemplate,
const FootpathPaintInfo& pathPaintInfo)
{
SupportHeight* supportSegments = session.SupportSegments;
if (!(session.Flags & PaintSessionFlags::PassedSurface))
{
return false;
}
if (session.ViewFlags & VIEWPORT_FLAG_HIDE_SUPPORTS)
{
if (session.ViewFlags & VIEWPORT_FLAG_INVISIBLE_SUPPORTS)
{
return false;
}
imageTemplate = ImageId().WithTransparency(FilterPaletteID::PaletteDarken1);
}
if (height < supportSegments[segment].height)
{
return true; // STC
}
uint16_t baseHeight;
if ((supportSegments[segment].slope & 0x20) || (height - supportSegments[segment].height < 6)
|| !(pathPaintInfo.RailingFlags & RAILING_ENTRY_FLAG_HAS_SUPPORT_BASE_SPRITE))
{
baseHeight = supportSegments[segment].height;
}
else
{
uint8_t imageOffset = metal_supports_slope_image_map[supportSegments[segment].slope & TILE_ELEMENT_SURFACE_SLOPE_MASK];
baseHeight = supportSegments[segment].height;
PaintAddImageAsParent(
session, imageTemplate.WithIndex(pathPaintInfo.BridgeImageId + 37 + imageOffset),
{ SupportBoundBoxes[segment].x, SupportBoundBoxes[segment].y, baseHeight }, { 0, 0, 5 });
baseHeight += 6;
}
// si = height
// dx = baseHeight
int16_t heightDiff = Floor2(baseHeight + 16, 16);
if (heightDiff > height)
{
heightDiff = height;
}
heightDiff -= baseHeight;
if (heightDiff > 0)
{
PaintAddImageAsParent(
session, imageTemplate.WithIndex(pathPaintInfo.BridgeImageId + 20 + (heightDiff - 1)),
{ SupportBoundBoxes[segment], baseHeight }, { 0, 0, heightDiff - 1 });
}
baseHeight += heightDiff;
bool keepGoing = true;
while (keepGoing)
{
int16_t z;
for (int32_t i = 0; i < 4; ++i)
{
z = baseHeight + 16;
if (z > height)
{
z = height;
}
z -= baseHeight;
if (z <= 0)
{
keepGoing = false;
break;
}
if (i == 3)
{
// Only do the z check in the fourth run.
break;
}
PaintAddImageAsParent(
session, imageTemplate.WithIndex(pathPaintInfo.BridgeImageId + 20 + (z - 1)),
{ SupportBoundBoxes[segment], baseHeight }, { 0, 0, (z - 1) });
baseHeight += z;
}
if (!keepGoing)
{
break;
}
ImageIndex imageIndex = pathPaintInfo.BridgeImageId + 20 + (z - 1);
if (z == 16)
{
imageIndex += 1;
}
PaintAddImageAsParent(
session, imageTemplate.WithIndex(imageIndex), { SupportBoundBoxes[segment], baseHeight }, { 0, 0, (z - 1) });
baseHeight += z;
}
// Loc6A34D8
supportSegments[segment].height = 0xFFFF;
supportSegments[segment].slope = 0x20;
if (special != 0)
{
int16_t si = special + baseHeight;
while (true)
{
int16_t z = baseHeight + 16;
if (z > si)
{
z = si;
}
z -= baseHeight;
if (z <= 0)
{
break;
}
ImageIndex imageIndex = pathPaintInfo.BridgeImageId + 20 + (z - 1);
PaintAddImageAsParent(
session, imageTemplate.WithIndex(imageIndex), { SupportBoundBoxes[segment], baseHeight }, { 0, 0, 0 });
baseHeight += z;
}
}
return false; // AND
}
constexpr uint8_t MetalSupportTypeCount = 13;
constexpr MetalSupportType RotatedMetalSupports[MetalSupportTypeCount][NumOrthogonalDirections] = {
{ MetalSupportType::Tubes, MetalSupportType::Tubes, MetalSupportType::Tubes, MetalSupportType::Tubes },
{ MetalSupportType::Fork, MetalSupportType::ForkAlt, MetalSupportType::Fork, MetalSupportType::ForkAlt },
{ MetalSupportType::ForkAlt, MetalSupportType::Fork, MetalSupportType::ForkAlt, MetalSupportType::Fork },
{ MetalSupportType::Boxed, MetalSupportType::Boxed, MetalSupportType::Boxed, MetalSupportType::Boxed },
{ MetalSupportType::Stick, MetalSupportType::StickAlt, MetalSupportType::Stick, MetalSupportType::StickAlt },
{ MetalSupportType::StickAlt, MetalSupportType::Stick, MetalSupportType::StickAlt, MetalSupportType::Stick },
{ MetalSupportType::ThickCentred, MetalSupportType::ThickAltCentred, MetalSupportType::Thick, MetalSupportType::ThickAlt },
{ MetalSupportType::Thick, MetalSupportType::ThickAlt, MetalSupportType::ThickCentred, MetalSupportType::ThickAltCentred },
{ MetalSupportType::ThickAlt, MetalSupportType::ThickCentred, MetalSupportType::ThickAltCentred, MetalSupportType::Thick },
{ MetalSupportType::ThickAltCentred, MetalSupportType::Thick, MetalSupportType::ThickAlt, MetalSupportType::ThickCentred },
{ MetalSupportType::Truss, MetalSupportType::Truss, MetalSupportType::Truss, MetalSupportType::Truss },
{ MetalSupportType::TubesInverted, MetalSupportType::TubesInverted, MetalSupportType::TubesInverted,
MetalSupportType::TubesInverted },
{ MetalSupportType::BoxedCoated, MetalSupportType::BoxedCoated, MetalSupportType::BoxedCoated,
MetalSupportType::BoxedCoated },
};
void DrawSupportsSideBySide(
PaintSession& session, Direction direction, uint16_t height, ImageId colour, MetalSupportType type, int32_t special)
{
type = RotatedMetalSupports[EnumValue(type)][direction];
if (direction & 1)
{
MetalASupportsPaintSetup(session, type, MetalSupportPlace::TopRightSide, special, height, colour);
MetalASupportsPaintSetup(session, type, MetalSupportPlace::BottomLeftSide, special, height, colour);
}
else
{
MetalASupportsPaintSetup(session, type, MetalSupportPlace::TopLeftSide, special, height, colour);
MetalASupportsPaintSetup(session, type, MetalSupportPlace::BottomRightSide, special, height, colour);
}
}