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OpenRCT2/src/park.c

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/*****************************************************************************
* Copyright (c) 2014 Ted John
* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
*
* This file is part of OpenRCT2.
*
* OpenRCT2 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, either version 3 of the License, or
* (at your option) any later version.
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*****************************************************************************/
#include <windows.h>
#include "addresses.h"
#include "award.h"
#include "finance.h"
#include "map.h"
#include "marketing.h"
#include "news_item.h"
#include "park.h"
#include "peep.h"
#include "ride.h"
#include "scenario.h"
#include "sprite.h"
#include "string_ids.h"
#include "window.h"
/**
* In a difficult guest generation scenario, no guests will be generated if over this value.
*/
int _suggestedGuestMaximum;
/**
* Probability out of 65535, of gaining a new guest per game tick.
* new guests per second = 40 * (probability / 65535)
* With a full park rating, non-overpriced entrance fee, less guests than the suggested maximum and four positive awards,
* approximately 1 guest per second can be generated (+60 guests in one minute).
*/
int _guestGenerationProbability;
int park_is_open()
{
return (RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32) & PARK_FLAGS_PARK_OPEN) != 0;
}
/**
*
* rct2: 0x00667132
*/
void park_init()
{
int i;
RCT2_GLOBAL(0x013CA740, uint8) = 0;
RCT2_GLOBAL(0x013573D4, uint16) = 777;
RCT2_GLOBAL(RCT2_ADDRESS_HANDYMAN_COLOUR, uint8) = 28;
RCT2_GLOBAL(RCT2_ADDRESS_MECHANIC_COLOUR, uint8) = 28;
RCT2_GLOBAL(RCT2_ADDRESS_SECURITY_COLOUR, uint8) = 28;
RCT2_GLOBAL(RCT2_ADDRESS_GUESTS_IN_PARK, uint16) = 0;
RCT2_GLOBAL(0x01357BC8, uint16) = 0;
RCT2_GLOBAL(RCT2_ADDRESS_GUESTS_HEADING_FOR_PARK, uint16) = 0;
RCT2_GLOBAL(0x013573FE, uint16) = 0;
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_PARK_RATING, uint16) = 0;
_guestGenerationProbability = 0;
RCT2_GLOBAL(RCT2_TOTAL_RIDE_VALUE, uint16) = 0;
RCT2_GLOBAL(RCT2_ADDRESS_LAST_RESEARCHED_ITEM_SUBJECT, sint32) = -1;
for (i = 0; i < 20; i++)
RCT2_ADDRESS(0x01358102, uint8)[i] = 0;
RCT2_GLOBAL(0x01358844, uint32) = 0xFFFFFFFF;
RCT2_GLOBAL(0x01358849, uint32) = 0xFFFFFFFE;
RCT2_GLOBAL(0x0135884E, uint32) = 0xFFFFFFFD;
finance_init();
for (i = 0; i < 2; i++)
RCT2_ADDRESS(0x01357404, uint32)[i] = 0;
for (i = 0; i < 56; i++)
RCT2_ADDRESS(0x01357BD0, sint32)[i] = -1;
RCT2_GLOBAL(RCT2_ADDRESS_PARK_ENTRANCE_FEE, money16) = MONEY(10, 00);
RCT2_GLOBAL(RCT2_ADDRESS_PEEP_SPAWNS, sint16) = -1;
RCT2_GLOBAL(0x013573F8, sint16) = -1;
RCT2_GLOBAL(RCT2_ADDRESS_ACTIVE_RESEARCH_TYPES, uint16) = 127;
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_RESEARCH_LEVEL, uint8) = 2;
RCT2_GLOBAL(RCT2_ADDRESS_GUEST_INITIAL_CASH, uint16) = MONEY(50,00); // Cash per guest (average)
RCT2_GLOBAL(RCT2_ADDRESS_GUEST_INITIAL_HAPPINESS, uint8) = calculate_guest_initial_happiness(50); // 50%
RCT2_GLOBAL(RCT2_ADDRESS_GUEST_INITIAL_HUNGER, uint8) = 200;
RCT2_GLOBAL(RCT2_ADDRESS_GUEST_INITIAL_THIRST, uint8) = 200;
RCT2_GLOBAL(RCT2_ADDRESS_OBJECTIVE_TYPE, uint8) = 1;
RCT2_GLOBAL(RCT2_ADDRESS_OBJECTIVE_YEAR, uint8) = 4;
RCT2_GLOBAL(RCT2_ADDRESS_OBJECTIVE_NUM_GUESTS, uint16) = 1000;
RCT2_GLOBAL(RCT2_ADDRESS_LAND_COST, uint16) = MONEY(90, 00);
RCT2_GLOBAL(RCT2_ADDRESS_CONSTRUCTION_RIGHTS_COST, uint16) = MONEY(40,00);
RCT2_GLOBAL(0x01358774, uint16) = 0;
RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32) = PARK_FLAGS_NO_MONEY | PARK_FLAGS_SHOW_REAL_GUEST_NAMES;
park_reset_history();
finance_reset_history();
award_reset();
rct_s6_info *info = (rct_s6_info*)0x0141F570;
info->name[0] = '\0';
format_string(info->details, STR_NO_DETAILS_YET, NULL);
}
/**
*
* rct2: 0x0066729F
*/
void park_reset_history()
{
int i;
for (i = 0; i < 32; i++) {
RCT2_ADDRESS(RCT2_ADDRESS_PARK_RATING_HISTORY, uint8)[i] = 255;
RCT2_ADDRESS(RCT2_ADDRESS_GUESTS_IN_PARK_HISTORY, uint8)[i] = 255;
}
}
/**
*
* rct2: 0x0066A348
*/
int park_calculate_size()
{
int tiles, x, y;
rct_map_element *mapElement;
tiles = 0;
for (y = 0; y < 256; y++) {
for (x = 0; x < 256; x++) {
mapElement = RCT2_ADDRESS(RCT2_ADDRESS_TILE_MAP_ELEMENT_POINTERS, rct_map_element*)[y * 256 + x];
while (mapElement->type & MAP_ELEMENT_TYPE_MASK) {
mapElement++;
}
if (mapElement->properties.surface.ownership & 0x30)
tiles++;
}
}
if (tiles != RCT2_GLOBAL(RCT2_ADDRESS_PARK_SIZE, sint16)) {
RCT2_GLOBAL(RCT2_ADDRESS_PARK_SIZE, sint16) = tiles;
window_invalidate_by_id(WC_PARK_INFORMATION, 0);
}
return tiles;
}
/**
*
* rct2: 0x00669EAA
*/
int calculate_park_rating()
{
int result;
result = 1150;
if (RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32) & 0x4000)
result = 1050;
// Guests
{
rct_peep* peep;
uint16 spriteIndex;
int num_happy_peeps;
short _bp;
// -150 to +3 based on a range of guests from 0 to 2000
result -= 150 - (min(2000, RCT2_GLOBAL(RCT2_ADDRESS_GUESTS_IN_PARK, uint16)) / 13);
// Guests, happiness, ?
num_happy_peeps = 0;
_bp = 0;
FOR_ALL_GUESTS(spriteIndex, peep) {
if (peep->var_2A != 0)
continue;
if (peep->happiness > 128)
num_happy_peeps++;
if (!(peep->flags & PEEP_FLAGS_LEAVING_PARK))
continue;
if (peep->var_C6 <= 89)
_bp++;
}
// Peep happiness -500 to +0
result -= 500;
if (RCT2_GLOBAL(RCT2_ADDRESS_GUESTS_IN_PARK, uint16) > 0)
result += 2 * min(250, (num_happy_peeps * 300) / RCT2_GLOBAL(RCT2_ADDRESS_GUESTS_IN_PARK, uint16));
// ?
_bp -= 25;
if (_bp >= 0)
result -= _bp * 7;
}
// Rides
{
int i;
short _ax, total_ride_intensity = 0, total_ride_excitement = 0, average_intensity, average_excitement;
int num_rides, num_exciting_rides = 0;
rct_ride* ride;
//
_ax = 0;
num_rides = 0;
FOR_ALL_RIDES(i, ride) {
_ax += 100 - ride->var_199;
if (ride->excitement != -1){
total_ride_excitement += ride->excitement / 8;
total_ride_intensity += ride->intensity / 8;
num_exciting_rides++;
}
num_rides++;
}
result -= 200;
if (num_rides > 0)
result += (_ax / num_rides) * 2;
result -= 100;
if (num_exciting_rides>0){
average_excitement = total_ride_excitement / num_exciting_rides;
average_intensity = total_ride_intensity / num_exciting_rides;
average_excitement -= 46;
if (average_excitement < 0){
average_excitement = -average_excitement;
}
average_intensity -= 65;
if (average_intensity < 0){
average_intensity = -average_intensity;
}
average_excitement = min(average_excitement / 2, 50);
average_intensity = min(average_intensity / 2, 50);
result += 100 - average_excitement - average_intensity;
}
total_ride_excitement = min(1000, total_ride_excitement);
total_ride_intensity = min(1000, total_ride_intensity);
result -= 200 - ((total_ride_excitement + total_ride_intensity) / 10);
}
// Litter
{
rct_litter* litter;
uint16 sprite_idx;
short num_litter;
num_litter = 0;
for (sprite_idx = RCT2_GLOBAL(RCT2_ADDRESS_SPRITES_START_LITTER, uint16); sprite_idx != SPRITE_INDEX_NULL; sprite_idx = litter->next) {
litter = &(g_sprite_list[sprite_idx].litter);
// Guessing this eliminates recently dropped litter
if (litter->var_24 - RCT2_GLOBAL(RCT2_ADDRESS_SCENARIO_TICKS, uint32) >= 7680)
num_litter++;
}
result -= 600 - (4 * (150 - min(150, num_litter)));
}
result -= RCT2_GLOBAL(0x0135882E, sint16);
result = clamp(0, result, 999);
return result;
}
money32 calculate_ride_value(rct_ride *ride)
{
if (ride->type == RIDE_TYPE_NULL)
return 0;
if (ride->reliability == 0xFFFF)
return 0;
// Reliability * (...)
return (ride->reliability * 10) * (
ride->var_124 + ride->var_126 + ride->var_128 + ride->var_12A +
ride->var_12C + ride->var_12E + ride->age + ride->running_cost +
ride->var_134 + ride->var_136 +
*((uint8*)(0x0097D21E + (ride->type * 8))) * 4
);
}
/**
*
* rct2: 0x0066A3F6
*/
money32 calculate_park_value()
{
int i;
money32 result;
rct_ride* ride;
// Sum ride values
result = 0;
for (i = 0; i < 255; i++) {
ride = &g_ride_list[i];
result += calculate_ride_value(ride);
}
// +7.00 per guest
result += RCT2_GLOBAL(RCT2_ADDRESS_GUESTS_IN_PARK, uint16) * MONEY(7, 00);
return result;
}
/**
* Calculate the company value.
* Cash + Park Value - Loan
*
* rct2: 0x0066A498
*/
money32 calculate_company_value()
{
return
DECRYPT_MONEY(RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_MONEY_ENCRYPTED, sint32)) +
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_PARK_VALUE, money32) -
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_LOAN, money32);
}
/**
*
* rct2: 0x00667104
*/
void reset_park_entrances()
{
RCT2_GLOBAL(0x013573D4, uint16) = 0;
for (short i = 0; i < 4; i++) {
RCT2_ADDRESS(RCT2_ADDRESS_PARK_ENTRANCE_X, uint16)[i] = 0x8000;
}
RCT2_GLOBAL(RCT2_ADDRESS_PEEP_SPAWNS, uint16) = 0xFFFF;
RCT2_GLOBAL(0x013573F8, uint16) = 0xFFFF;
}
/**
* Calculates the probability of a new guest. Also sets total ride value and suggested guest maximum.
* Total ride value should probably be set else where, as its not just used for guest generation.
* Suggested guest maximum should probably be an output result, not a global.
* @returns A probability out of 65535
* rct2: 0x0066730A
*/
static int park_calculate_guest_generation_probability()
{
unsigned int probability;
int i, suggestedMaxGuests, totalRideValue;
rct_ride *ride;
// Calculate suggested guest maximum (based on ride type) and total ride value
suggestedMaxGuests = 0;
totalRideValue = 0;
FOR_ALL_RIDES(i, ride) {
if (ride->status != RIDE_STATUS_OPEN)
continue;
if (ride->lifecycle_flags & RIDE_LIFECYCLE_BROKEN_DOWN)
continue;
if (ride->lifecycle_flags & RIDE_LIFECYCLE_CRASHED)
continue;
// Add guest score for ride type
suggestedMaxGuests += RCT2_GLOBAL(0x0097D21E + (ride->type * 8), uint8);
// Add ride value
if (ride->reliability != RIDE_RELIABILITY_UNDEFINED) {
int rideValue = ride->reliability - ride->price;
if (rideValue > 0)
totalRideValue += rideValue * 2;
}
}
// If difficult guest generation, extra guests are available for good rides
if (RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32) & PARK_FLAGS_DIFFICULT_GUEST_GENERATION) {
suggestedMaxGuests = min(suggestedMaxGuests, 1000);
FOR_ALL_RIDES(i, ride) {
if (ride->lifecycle_flags & RIDE_LIFECYCLE_BROKEN_DOWN)
continue;
if (ride->lifecycle_flags & RIDE_LIFECYCLE_CRASHED)
continue;
if (!(RCT2_GLOBAL(RCT2_ADDRESS_RIDE_FLAGS + (ride->type * 8), uint32) & 0x10000000))
continue;
if (!(RCT2_GLOBAL(RCT2_ADDRESS_RIDE_FLAGS + (ride->type * 8), uint32) & 0x200))
continue;
if (!(ride->lifecycle_flags & RIDE_LIFECYCLE_TESTED))
continue;
if (ride->var_0E4 < 0x2580000)
continue;
if (ride->excitement < RIDE_RATING(6,00))
continue;
// Bonus guests for good ride
suggestedMaxGuests += RCT2_GLOBAL(0x0097D21E + (ride->type * 8), uint8) * 2;
}
}
suggestedMaxGuests = min(suggestedMaxGuests, 65535);
RCT2_GLOBAL(RCT2_TOTAL_RIDE_VALUE, uint16) = totalRideValue;
_suggestedGuestMaximum = suggestedMaxGuests;
// Begin with 50 + park rating
probability = 50 + clamp(0, RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_PARK_RATING, uint16) - 200, 650);
// The more guests, the lower the chance of a new one
int numGuests = RCT2_GLOBAL(RCT2_ADDRESS_GUESTS_IN_PARK, uint16) + RCT2_GLOBAL(RCT2_ADDRESS_GUESTS_HEADING_FOR_PARK, uint16);
if (numGuests > suggestedMaxGuests) {
probability /= 4;
// Even lower for difficult guest generation
if (RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32) & PARK_FLAGS_DIFFICULT_GUEST_GENERATION)
probability /= 4;
}
// Reduces chance for any more than 7000 guests
if (numGuests > 7000)
probability /= 4;
// Check if money is enabled
if (!(RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32) & PARK_FLAGS_NO_MONEY)) {
// Penalty for overpriced entrance fee relative to total ride value
money16 entranceFee = RCT2_GLOBAL(RCT2_ADDRESS_PARK_ENTRANCE_FEE, money16);
if (entranceFee > totalRideValue) {
probability /= 4;
// Extra penalty for very overpriced entrance fee
if (entranceFee / 2 > totalRideValue)
probability /= 4;
}
}
// Reward or penalties for park awards
for (i = 0; i < MAX_AWARDS; i++) {
rct_award *award = &RCT2_ADDRESS(RCT2_ADDRESS_AWARD_LIST, rct_award)[i];
if (award->time == 0)
continue;
// +/- 0.25% of the probability
if (award_is_positive(award->type))
probability += probability / 4;
else
probability -= probability / 4;
}
return probability;
}
static void get_random_peep_spawn(rct2_peep_spawn *spawn)
{
rct2_peep_spawn *peepSpawns = RCT2_ADDRESS(RCT2_ADDRESS_PEEP_SPAWNS, rct2_peep_spawn);
*spawn = peepSpawns[0];
if (peepSpawns[1].x != 0xFFFF)
if (scenario_rand() & 0x80000)
*spawn = peepSpawns[1];
}
static rct_peep *park_generate_new_guest()
{
rct_peep *peep;
rct2_peep_spawn spawn;
get_random_peep_spawn(&spawn);
if (spawn.x != 0xFFFF) {
spawn.direction ^= 2;
peep = peep_generate(spawn.x, spawn.y, spawn.z * 16);
if (peep != NULL) {
peep->sprite_direction = spawn.direction << 3;
// Get the centre point of the tile the peep is on
peep->var_32 = (peep->x & 0xFFE0) + 16;
peep->var_34 = (peep->y & 0xFFE0) + 16;
peep->var_36 = 5;
peep->var_76 = 0;
peep->var_78 = spawn.direction;
peep->var_37 = 0;
peep->state = PEEP_STATE_ENTERING_PARK;
}
}
return peep;
}
//This is called via the cheat window.
void generate_new_guest()
{
park_generate_new_guest();
}
static rct_peep *park_generate_new_guest_due_to_campaign(int campaign)
{
rct_peep *peep = park_generate_new_guest();
if (peep != NULL)
marketing_set_guest_campaign(peep, campaign);
return peep;
}
static void park_generate_new_guests()
{
// Generate a new guest for some probability
if ((scenario_rand() & 0xFFFF) < _guestGenerationProbability) {
int difficultGeneration = (RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32) & PARK_FLAGS_DIFFICULT_GUEST_GENERATION) != 0;
if (!difficultGeneration || _suggestedGuestMaximum + 150 >= RCT2_GLOBAL(RCT2_ADDRESS_GUESTS_IN_PARK, uint16))
park_generate_new_guest();
}
// Extra guests generated by advertising campaigns
int campaign;
for (campaign = 0; campaign < ADVERTISING_CAMPAIGN_COUNT; campaign++) {
if (RCT2_ADDRESS(0x01358102, uint8)[campaign] != 0) {
// Random chance of guest generation
if ((scenario_rand() & 0xFFFF) < marketing_get_campaign_guest_generation_probability(campaign))
park_generate_new_guest_due_to_campaign(campaign);
}
}
}
/**
*
* rct2: 0x006674F7
*/
void park_update()
{
if (RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_FLAGS, uint8) & 0x0E)
return;
// Every 5 seconds approximately
if (RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_TICKS, uint8) % 512 == 0) {
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_PARK_RATING, uint16) = calculate_park_rating();
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_PARK_VALUE, money32) = calculate_park_value();
RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_COMPANY_VALUE, money32) = calculate_company_value();
window_invalidate_by_id(WC_FINANCES, 0);
_guestGenerationProbability = park_calculate_guest_generation_probability();
RCT2_GLOBAL(0x009A9804, uint16) |= 0x10;
window_invalidate_by_id(WC_PARK_INFORMATION, 0);
}
// Generate new guests
park_generate_new_guests();
}
uint8 calculate_guest_initial_happiness(uint8 percentage) {
if (percentage < 15) {
// There is a minimum of 15% happiness
percentage = 15;
}
else if (percentage > 98) {
// There is a maximum of 98% happiness
percentage = 98;
}
/* The percentages follow this sequence:
15 17 18 20 21 23 25 26 28 29 31 32 34 36 37 39 40 42 43 45 47 48 50 51 53...
This sequence can be defined as PI*(9+n)/2 (the value is floored)
*/
uint8 n;
for (n = 1; n < 55; n++) {
if ((3.14159*(9 + n)) / 2 >= percentage) {
return (9 + n) * 4;
}
}
return 40; // This is the lowest possible value
}
/**
*
* rct2: 0x0066A231
*/
void park_update_histories()
{
RCT2_CALLPROC_EBPSAFE(0x0066A231);
}
/**
*
* rct2: 0x00669E30
*/
void game_command_set_park_entrance_fee()
{
uint8 _bl;
uint16 new_fee;
#ifdef _MSC_VER
__asm mov _bl, bl
#else
__asm__("mov %[_bl], bl " : [_bl] "+m" (_bl));
#endif
#ifdef _MSC_VER
__asm mov new_fee, di
#else
__asm__("mov %[new_fee], di " : [new_fee] "+m" (new_fee));
#endif
RCT2_GLOBAL(0x0141F56C, uint8) = 0x10;
if (_bl & 1){
RCT2_GLOBAL(RCT2_ADDRESS_PARK_ENTRANCE_FEE, uint16) = new_fee;
window_invalidate_by_id(WC_PARK_INFORMATION, 0);
}
#ifdef _MSC_VER
__asm mov ebx, 0
#else
__asm__("mov ebx, 0 ");
#endif
}
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