mirror of
https://github.com/OpenRCT2/OpenRCT2
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241 lines
8.2 KiB
C++
241 lines
8.2 KiB
C++
/*****************************************************************************
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* Copyright (c) 2014-2025 OpenRCT2 developers
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*
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* For a complete list of all authors, please refer to contributors.md
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* Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
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*
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* OpenRCT2 is licensed under the GNU General Public License version 3.
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*****************************************************************************/
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#include "Colour.h"
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#include "../SpriteIds.h"
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#include "../core/EnumMap.hpp"
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#include "../core/EnumUtils.hpp"
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#include "../drawing/Drawing.h"
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#include <cmath>
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using namespace OpenRCT2::Drawing;
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ColourShadeMap ColourMapA[COLOUR_COUNT] = {};
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static constexpr uint8_t kLegacyColourMaskBase = 0x1F;
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static constexpr uint8_t kLegacyColourFlagOutline = (1 << 5);
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static constexpr uint8_t kLegacyColourFlagInset = (1 << 6);
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enum
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{
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INDEX_COLOUR_0 = 243,
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INDEX_COLOUR_1 = 245,
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INDEX_DARKEST = 245,
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INDEX_DARKER = 246,
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INDEX_DARK = 247,
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INDEX_MID_DARK = 248,
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INDEX_MID_LIGHT = 249,
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INDEX_LIGHT = 250,
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INDEX_LIGHTER = 251,
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INDEX_LIGHTEST = 252,
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INDEX_COLOUR_10 = 253,
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INDEX_COLOUR_11 = 254,
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};
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void ColoursInitMaps()
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{
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// Get colour maps from g1
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for (int32_t i = 0; i < COLOUR_COUNT; i++)
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{
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// Get palette index in g1 / g2
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const auto paletteIndex = (i < kColourNumOriginal) ? SPR_PALETTE_2_START : SPR_G2_PALETTE_BEGIN - kColourNumOriginal;
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const G1Element* g1 = GfxGetG1Element(paletteIndex + i);
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if (g1 != nullptr)
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{
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ColourMapA[i].colour_0 = static_cast<PaletteIndex>(g1->offset[INDEX_COLOUR_0]);
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ColourMapA[i].colour_1 = static_cast<PaletteIndex>(g1->offset[INDEX_COLOUR_1]);
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ColourMapA[i].darkest = static_cast<PaletteIndex>(g1->offset[INDEX_DARKEST]);
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ColourMapA[i].darker = static_cast<PaletteIndex>(g1->offset[INDEX_DARKER]);
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ColourMapA[i].dark = static_cast<PaletteIndex>(g1->offset[INDEX_DARK]);
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ColourMapA[i].mid_dark = static_cast<PaletteIndex>(g1->offset[INDEX_MID_DARK]);
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ColourMapA[i].mid_light = static_cast<PaletteIndex>(g1->offset[INDEX_MID_LIGHT]);
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ColourMapA[i].light = static_cast<PaletteIndex>(g1->offset[INDEX_LIGHT]);
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ColourMapA[i].lighter = static_cast<PaletteIndex>(g1->offset[INDEX_LIGHTER]);
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ColourMapA[i].lightest = static_cast<PaletteIndex>(g1->offset[INDEX_LIGHTEST]);
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ColourMapA[i].colour_10 = static_cast<PaletteIndex>(g1->offset[INDEX_COLOUR_10]);
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ColourMapA[i].colour_11 = static_cast<PaletteIndex>(g1->offset[INDEX_COLOUR_11]);
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}
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}
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}
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namespace OpenRCT2::Colour
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{
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static const EnumMap<colour_t> LookupTable{
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{ "black", COLOUR_BLACK },
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{ "grey", COLOUR_GREY },
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{ "white", COLOUR_WHITE },
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{ "dark_purple", COLOUR_DARK_PURPLE },
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{ "light_purple", COLOUR_LIGHT_PURPLE },
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{ "bright_purple", COLOUR_BRIGHT_PURPLE },
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{ "dark_blue", COLOUR_DARK_BLUE },
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{ "light_blue", COLOUR_LIGHT_BLUE },
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{ "icy_blue", COLOUR_ICY_BLUE },
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{ "teal", COLOUR_TEAL },
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{ "aquamarine", COLOUR_AQUAMARINE },
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{ "saturated_green", COLOUR_SATURATED_GREEN },
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{ "dark_green", COLOUR_DARK_GREEN },
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{ "moss_green", COLOUR_MOSS_GREEN },
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{ "bright_green", COLOUR_BRIGHT_GREEN },
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{ "olive_green", COLOUR_OLIVE_GREEN },
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{ "dark_olive_green", COLOUR_DARK_OLIVE_GREEN },
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{ "bright_yellow", COLOUR_BRIGHT_YELLOW },
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{ "yellow", COLOUR_YELLOW },
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{ "dark_yellow", COLOUR_DARK_YELLOW },
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{ "light_orange", COLOUR_LIGHT_ORANGE },
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{ "dark_orange", COLOUR_DARK_ORANGE },
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{ "light_brown", COLOUR_LIGHT_BROWN },
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{ "saturated_brown", COLOUR_SATURATED_BROWN },
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{ "dark_brown", COLOUR_DARK_BROWN },
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{ "salmon_pink", COLOUR_SALMON_PINK },
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{ "bordeaux_red", COLOUR_BORDEAUX_RED },
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{ "saturated_red", COLOUR_SATURATED_RED },
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{ "bright_red", COLOUR_BRIGHT_RED },
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{ "dark_pink", COLOUR_DARK_PINK },
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{ "bright_pink", COLOUR_BRIGHT_PINK },
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{ "light_pink", COLOUR_LIGHT_PINK },
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{ "dark_olive_dark", COLOUR_DARK_OLIVE_DARK },
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{ "dark_olive_light", COLOUR_DARK_OLIVE_LIGHT },
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{ "saturated_brown_light", COLOUR_SATURATED_BROWN_LIGHT },
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{ "bordeaux_red_dark", COLOUR_BORDEAUX_RED_DARK },
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{ "bordeaux_red_light", COLOUR_BORDEAUX_RED_LIGHT },
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{ "grass_green_dark", COLOUR_GRASS_GREEN_DARK },
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{ "grass_green_light", COLOUR_GRASS_GREEN_LIGHT },
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{ "olive_dark", COLOUR_OLIVE_DARK },
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{ "olive_light", COLOUR_OLIVE_LIGHT },
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{ "saturated_green_light", COLOUR_SATURATED_GREEN_LIGHT },
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{ "tan_dark", COLOUR_TAN_DARK },
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{ "tan_light", COLOUR_TAN_LIGHT },
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{ "dull_purple_light", COLOUR_DULL_PURPLE_LIGHT },
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{ "dull_green_dark", COLOUR_DULL_GREEN_DARK },
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{ "dull_green_light", COLOUR_DULL_GREEN_LIGHT },
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{ "saturated_purple_dark", COLOUR_SATURATED_PURPLE_DARK },
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{ "saturated_purple_light", COLOUR_SATURATED_PURPLE_LIGHT },
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{ "orange_light", COLOUR_ORANGE_LIGHT },
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{ "aqua_dark", COLOUR_AQUA_DARK },
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{ "magenta_light", COLOUR_MAGENTA_LIGHT },
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{ "dull_brown_dark", COLOUR_DULL_BROWN_DARK },
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{ "dull_brown_light", COLOUR_DULL_BROWN_LIGHT },
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{ "invisible", COLOUR_INVISIBLE },
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{ "void", COLOUR_VOID },
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};
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colour_t FromString(std::string_view s, colour_t defaultValue)
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{
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auto result = LookupTable.find(s);
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return (result != LookupTable.end()) ? result->second : defaultValue;
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}
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u8string ToString(colour_t colour)
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{
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auto result = LookupTable.find(colour);
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if (result != LookupTable.end())
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return u8string(result->first);
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return "black";
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}
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} // namespace OpenRCT2::Colour
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#ifndef DISABLE_TTF
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static BlendColourMapType BlendColourMap = { 0 };
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static bool BlendColourMapInitialised = false;
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static uint8_t FindClosestPaletteIndex(uint8_t red, uint8_t green, uint8_t blue)
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{
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int16_t closest = -1;
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int32_t closestDistance = INT32_MAX;
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for (int i = PaletteIndex::pi0; i < PaletteIndex::pi230; i++)
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{
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const int32_t distance = std::pow(gPalette[i].Red - red, 2) + std::pow(gPalette[i].Green - green, 2)
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+ std::pow(gPalette[i].Blue - blue, 2);
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if (distance < closestDistance)
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{
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closest = i;
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closestDistance = distance;
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}
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}
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return closest;
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}
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static void InitBlendColourMap()
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{
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for (size_t i = 0; i < kGamePaletteSize; i++)
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{
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for (size_t j = i; j < kGamePaletteSize; j++)
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{
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uint8_t red = (gPalette[i].Red + gPalette[j].Red) / 2;
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uint8_t green = (gPalette[i].Green + gPalette[j].Green) / 2;
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uint8_t blue = (gPalette[i].Blue + gPalette[j].Blue) / 2;
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auto colour = FindClosestPaletteIndex(red, green, blue);
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BlendColourMap[i][j] = colour;
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BlendColourMap[j][i] = colour;
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}
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}
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BlendColourMapInitialised = true;
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}
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BlendColourMapType* GetBlendColourMap()
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{
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if (!BlendColourMapInitialised)
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{
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InitBlendColourMap();
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}
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return &BlendColourMap;
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}
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uint8_t BlendColours(const uint8_t paletteIndex1, const uint8_t paletteIndex2)
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{
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if (!BlendColourMapInitialised)
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{
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InitBlendColourMap();
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}
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return BlendColourMap[paletteIndex1][paletteIndex2];
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}
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#else
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BlendColourMapType* GetBlendColourMap()
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{
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return nullptr;
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}
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#endif
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ColourWithFlags ColourWithFlags::withFlag(ColourFlag flag, bool on) const
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{
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struct ColourWithFlags result = *this;
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result.flags.set(flag, on);
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return result;
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}
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ColourWithFlags ColourWithFlags::fromLegacy(uint8_t legacy)
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{
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ColourWithFlags result{};
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result.colour = legacy & kLegacyColourMaskBase;
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if (legacy & kLegacyColourFlagTranslucent)
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result.flags.set(ColourFlag::translucent);
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if (legacy & kLegacyColourFlagInset)
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result.flags.set(ColourFlag::inset);
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if (legacy & kLegacyColourFlagOutline)
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result.flags.set(ColourFlag::withOutline);
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return result;
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}
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ColourWithFlags& ColourWithFlags::operator=(colour_t rhs)
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{
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colour = rhs;
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flags = {};
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return *this;
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}
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