OpenTTD/src/company_manager_face.h

242 lines
11 KiB
C

/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file company_manager_face.h Functionality related to the company manager's face */
#ifndef COMPANY_MANAGER_FACE_H
#define COMPANY_MANAGER_FACE_H
#include "core/random_func.hpp"
#include "core/bitmath_func.hpp"
#include "table/sprites.h"
#include "company_type.h"
/** The gender/race combinations that we have faces for */
enum GenderEthnicity {
GENDER_FEMALE = 0, ///< This bit set means a female, otherwise male
ETHNICITY_BLACK = 1, ///< This bit set means black, otherwise white
GE_WM = 0, ///< A male of Caucasian origin (white)
GE_WF = 1 << GENDER_FEMALE, ///< A female of Caucasian origin (white)
GE_BM = 1 << ETHNICITY_BLACK, ///< A male of African origin (black)
GE_BF = 1 << ETHNICITY_BLACK | 1 << GENDER_FEMALE, ///< A female of African origin (black)
GE_END,
};
DECLARE_ENUM_AS_BIT_SET(GenderEthnicity) ///< See GenderRace as a bitset
/** Bitgroups of the CompanyManagerFace variable */
enum CompanyManagerFaceVariable {
CMFV_GENDER,
CMFV_ETHNICITY,
CMFV_GEN_ETHN,
CMFV_HAS_MOUSTACHE,
CMFV_HAS_TIE_EARRING,
CMFV_HAS_GLASSES,
CMFV_EYE_COLOUR,
CMFV_CHEEKS,
CMFV_CHIN,
CMFV_EYEBROWS,
CMFV_MOUSTACHE,
CMFV_LIPS,
CMFV_NOSE,
CMFV_HAIR,
CMFV_JACKET,
CMFV_COLLAR,
CMFV_TIE_EARRING,
CMFV_GLASSES,
CMFV_END,
};
DECLARE_POSTFIX_INCREMENT(CompanyManagerFaceVariable)
/** Information about the valid values of CompanyManagerFace bitgroups as well as the sprites to draw */
struct CompanyManagerFaceBitsInfo {
uint8_t offset; ///< Offset in bits into the CompanyManagerFace
uint8_t length; ///< Number of bits used in the CompanyManagerFace
uint8_t valid_values[GE_END]; ///< The number of valid values per gender/ethnicity
SpriteID first_sprite[GE_END]; ///< The first sprite per gender/ethnicity
};
/** Lookup table for indices into the CompanyManagerFace, valid ranges and sprites */
static const CompanyManagerFaceBitsInfo _cmf_info[] = {
/* Index off len WM WF BM BF WM WF BM BF
* CMFV_GENDER */ { 0, 1, { 2, 2, 2, 2 }, { 0, 0, 0, 0 } }, ///< 0 = male, 1 = female
/* CMFV_ETHNICITY */ { 1, 2, { 2, 2, 2, 2 }, { 0, 0, 0, 0 } }, ///< 0 = (Western-)Caucasian, 1 = African(-American)/Black
/* CMFV_GEN_ETHN */ { 0, 3, { 4, 4, 4, 4 }, { 0, 0, 0, 0 } }, ///< Shortcut to get/set gender _and_ ethnicity
/* CMFV_HAS_MOUSTACHE */ { 3, 1, { 2, 0, 2, 0 }, { 0, 0, 0, 0 } }, ///< Females do not have a moustache
/* CMFV_HAS_TIE_EARRING */ { 3, 1, { 0, 2, 0, 2 }, { 0, 0, 0, 0 } }, ///< Draw the earring for females or not. For males the tie is always drawn.
/* CMFV_HAS_GLASSES */ { 4, 1, { 2, 2, 2, 2 }, { 0, 0, 0, 0 } }, ///< Whether to draw glasses or not
/* CMFV_EYE_COLOUR */ { 5, 2, { 3, 3, 1, 1 }, { 0, 0, 0, 0 } }, ///< Palette modification
/* CMFV_CHEEKS */ { 0, 0, { 1, 1, 1, 1 }, { 0x325, 0x326, 0x390, 0x3B0 } }, ///< Cheeks are only indexed by their gender/ethnicity
/* CMFV_CHIN */ { 7, 2, { 4, 1, 2, 2 }, { 0x327, 0x327, 0x391, 0x3B1 } },
/* CMFV_EYEBROWS */ { 9, 4, { 12, 16, 11, 16 }, { 0x32B, 0x337, 0x39A, 0x3B8 } },
/* CMFV_MOUSTACHE */ { 13, 2, { 3, 0, 3, 0 }, { 0x367, 0, 0x397, 0 } }, ///< Depends on CMFV_HAS_MOUSTACHE
/* CMFV_LIPS */ { 13, 4, { 12, 10, 9, 9 }, { 0x35B, 0x351, 0x3A5, 0x3C8 } }, ///< Depends on !CMFV_HAS_MOUSTACHE
/* CMFV_NOSE */ { 17, 3, { 8, 4, 4, 5 }, { 0x349, 0x34C, 0x393, 0x3B3 } }, ///< Depends on !CMFV_HAS_MOUSTACHE
/* CMFV_HAIR */ { 20, 4, { 9, 5, 5, 5 }, { 0x382, 0x38B, 0x3D4, 0x3D9 } },
/* CMFV_JACKET */ { 24, 2, { 3, 3, 3, 3 }, { 0x36B, 0x378, 0x36B, 0x378 } },
/* CMFV_COLLAR */ { 26, 2, { 4, 4, 4, 4 }, { 0x36E, 0x37B, 0x36E, 0x37B } },
/* CMFV_TIE_EARRING */ { 28, 3, { 6, 3, 6, 3 }, { 0x372, 0x37F, 0x372, 0x3D1 } }, ///< Depends on CMFV_HAS_TIE_EARRING
/* CMFV_GLASSES */ { 31, 1, { 2, 2, 2, 2 }, { 0x347, 0x347, 0x3AE, 0x3AE } } ///< Depends on CMFV_HAS_GLASSES
};
/** Make sure the table's size is right. */
static_assert(lengthof(_cmf_info) == CMFV_END);
/**
* Gets the company manager's face bits for the given company manager's face variable
* @param cmf the face to extract the bits from
* @param cmfv the face variable to get the data of
* @param ge the gender and ethnicity of the face
* @pre _cmf_info[cmfv].valid_values[ge] != 0
* @return the requested bits
*/
inline uint GetCompanyManagerFaceBits(CompanyManagerFace cmf, CompanyManagerFaceVariable cmfv, [[maybe_unused]] GenderEthnicity ge)
{
assert(_cmf_info[cmfv].valid_values[ge] != 0);
return GB(cmf, _cmf_info[cmfv].offset, _cmf_info[cmfv].length);
}
/**
* Sets the company manager's face bits for the given company manager's face variable
* @param cmf the face to write the bits to
* @param cmfv the face variable to write the data of
* @param ge the gender and ethnicity of the face
* @param val the new value
* @pre val < _cmf_info[cmfv].valid_values[ge]
*/
inline void SetCompanyManagerFaceBits(CompanyManagerFace &cmf, CompanyManagerFaceVariable cmfv, [[maybe_unused]] GenderEthnicity ge, uint val)
{
assert(val < _cmf_info[cmfv].valid_values[ge]);
SB(cmf, _cmf_info[cmfv].offset, _cmf_info[cmfv].length, val);
}
/**
* Increase/Decrease the company manager's face variable by the given amount.
* If the new value greater than the max value for this variable it will be set to 0.
* Or is it negative (< 0) it will be set to max value.
*
* @param cmf the company manager face to write the bits to
* @param cmfv the company manager face variable to write the data of
* @param ge the gender and ethnicity of the company manager's face
* @param amount the amount which change the value
*
* @pre 0 <= val < _cmf_info[cmfv].valid_values[ge]
*/
inline void IncreaseCompanyManagerFaceBits(CompanyManagerFace &cmf, CompanyManagerFaceVariable cmfv, GenderEthnicity ge, int8_t amount)
{
int8_t val = GetCompanyManagerFaceBits(cmf, cmfv, ge) + amount; // the new value for the cmfv
/* scales the new value to the correct scope */
if (val >= _cmf_info[cmfv].valid_values[ge]) {
val = 0;
} else if (val < 0) {
val = _cmf_info[cmfv].valid_values[ge] - 1;
}
SetCompanyManagerFaceBits(cmf, cmfv, ge, val); // save the new value
}
/**
* Checks whether the company manager's face bits have a valid range
* @param cmf the face to extract the bits from
* @param cmfv the face variable to get the data of
* @param ge the gender and ethnicity of the face
* @return true if and only if the bits are valid
*/
inline bool AreCompanyManagerFaceBitsValid(CompanyManagerFace cmf, CompanyManagerFaceVariable cmfv, GenderEthnicity ge)
{
return GB(cmf, _cmf_info[cmfv].offset, _cmf_info[cmfv].length) < _cmf_info[cmfv].valid_values[ge];
}
/**
* Scales a company manager's face bits variable to the correct scope
* @param cmfv the face variable to write the data of
* @param ge the gender and ethnicity of the face
* @param val the to value to scale
* @pre val < (1U << _cmf_info[cmfv].length), i.e. val has a value of 0..2^(bits used for this variable)-1
* @return the scaled value
*/
inline uint ScaleCompanyManagerFaceValue(CompanyManagerFaceVariable cmfv, GenderEthnicity ge, uint val)
{
assert(val < (1U << _cmf_info[cmfv].length));
return (val * _cmf_info[cmfv].valid_values[ge]) >> _cmf_info[cmfv].length;
}
/**
* Scales all company manager's face bits to the correct scope
*
* @param cmf the company manager's face to write the bits to
*/
inline void ScaleAllCompanyManagerFaceBits(CompanyManagerFace &cmf)
{
IncreaseCompanyManagerFaceBits(cmf, CMFV_ETHNICITY, GE_WM, 0); // scales the ethnicity
GenderEthnicity ge = (GenderEthnicity)GB(cmf, _cmf_info[CMFV_GEN_ETHN].offset, _cmf_info[CMFV_GEN_ETHN].length); // gender & ethnicity of the face
/* Is a male face with moustache. Need to reduce CPU load in the loop. */
bool is_moust_male = !HasBit(ge, GENDER_FEMALE) && GetCompanyManagerFaceBits(cmf, CMFV_HAS_MOUSTACHE, ge) != 0;
for (CompanyManagerFaceVariable cmfv = CMFV_EYE_COLOUR; cmfv < CMFV_END; cmfv++) { // scales all other variables
/* The moustache variable will be scaled only if it is a male face with has a moustache */
if (cmfv != CMFV_MOUSTACHE || is_moust_male) {
IncreaseCompanyManagerFaceBits(cmf, cmfv, ge, 0);
}
}
}
/**
* Make a random new face.
* If it is for the advanced company manager's face window then the new face have the same gender
* and ethnicity as the old one, else the gender is equal and the ethnicity is random.
*
* @param cmf the company manager's face to write the bits to
* @param ge the gender and ethnicity of the old company manager's face
* @param adv if it for the advanced company manager's face window
* @param randomizer the source of random to use for creating the manager face
*
* @pre scale 'ge' to a valid gender/ethnicity combination
*/
inline void RandomCompanyManagerFaceBits(CompanyManagerFace &cmf, GenderEthnicity ge, bool adv, Randomizer &randomizer)
{
cmf = randomizer.Next(); // random all company manager's face bits
/* scale ge: 0 == GE_WM, 1 == GE_WF, 2 == GE_BM, 3 == GE_BF (and maybe in future: ...) */
ge = (GenderEthnicity)((uint)ge % GE_END);
/* set the gender (and ethnicity) for the new company manager's face */
if (adv) {
SetCompanyManagerFaceBits(cmf, CMFV_GEN_ETHN, ge, ge);
} else {
SetCompanyManagerFaceBits(cmf, CMFV_GENDER, ge, HasBit(ge, GENDER_FEMALE));
}
/* scales all company manager's face bits to the correct scope */
ScaleAllCompanyManagerFaceBits(cmf);
}
/**
* Gets the sprite to draw for the given company manager's face variable
* @param cmf the face to extract the data from
* @param cmfv the face variable to get the sprite of
* @param ge the gender and ethnicity of the face
* @pre _cmf_info[cmfv].valid_values[ge] != 0
* @return sprite to draw
*/
inline SpriteID GetCompanyManagerFaceSprite(CompanyManagerFace cmf, CompanyManagerFaceVariable cmfv, GenderEthnicity ge)
{
assert(_cmf_info[cmfv].valid_values[ge] != 0);
return _cmf_info[cmfv].first_sprite[ge] + GB(cmf, _cmf_info[cmfv].offset, _cmf_info[cmfv].length);
}
void DrawCompanyManagerFace(CompanyManagerFace face, Colours colour, const Rect &r);
#endif /* COMPANY_MANAGER_FACE_H */