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OpenRCT2/src/openrct2/Intro.cpp

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/*****************************************************************************
* Copyright (c) 2014-2020 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 "Intro.h"
#include "Context.h"
#include "audio/AudioMixer.h"
#include "audio/audio.h"
#include "drawing/Drawing.h"
#include "sprites.h"
#define BACKROUND_COLOUR_DARK PALETTE_INDEX_10
#define BACKROUND_COLOUR_LOGO PALETTE_INDEX_245
#define BORDER_COLOUR_PUBLISHER PALETTE_INDEX_129
constexpr int32_t PALETTE_G1_IDX_DEVELOPER = 23217;
constexpr int32_t PALETTE_G1_IDX_LOGO = 23224;
IntroState gIntroState;
// Used mainly for timing but also for Y coordinate and fading.
static int32_t _introStateCounter;
static void* _soundChannel = nullptr;
static bool _chainLiftFinished;
static void screen_intro_process_mouse_input();
static void screen_intro_process_keyboard_input();
static void screen_intro_skip_part();
static void screen_intro_draw_logo(rct_drawpixelinfo* dpi);
// rct2: 0x0068E966
void intro_update()
{
screen_intro_process_mouse_input();
screen_intro_process_keyboard_input();
switch (gIntroState)
{
case IntroState::Disclaimer1:
case IntroState::Disclaimer2:
// Originally used for the disclaimer text
gIntroState = IntroState::PublisherBegin;
[[fallthrough]];
case IntroState::PublisherBegin:
load_palette();
// Set the Y for the Infogrames logo
_introStateCounter = -580;
// Play the chain lift sound
_soundChannel = Mixer_Play_Effect(
OpenRCT2::Audio::SoundId::LiftBM, MIXER_LOOP_INFINITE, MIXER_VOLUME_MAX, 0.5f, 1, true);
_chainLiftFinished = false;
gIntroState = IntroState::PublisherScroll;
break;
case IntroState::PublisherScroll:
// Move the Infogrames logo down
_introStateCounter += 5;
// Check if logo is off the screen...ish
if (_introStateCounter > context_get_height() - 120)
{
_introStateCounter = -116;
gIntroState = IntroState::DeveloperBegin;
}
break;
case IntroState::DeveloperBegin:
// Set the Y for the Chris Sawyer logo
_introStateCounter = -116;
gIntroState = IntroState::DeveloperScroll;
break;
case IntroState::DeveloperScroll:
_introStateCounter += 5;
// Check if logo is almost scrolled to the bottom
if (!_chainLiftFinished && _introStateCounter >= context_get_height() + 40 - 421)
{
_chainLiftFinished = true;
// Stop the chain lift sound
if (_soundChannel != nullptr)
{
Mixer_Stop_Channel(_soundChannel);
_soundChannel = nullptr;
}
// Play the track friction sound
_soundChannel = Mixer_Play_Effect(
OpenRCT2::Audio::SoundId::TrackFrictionBM, MIXER_LOOP_INFINITE, MIXER_VOLUME_MAX, 0.25f, 0.75, true);
}
// Check if logo is off the screen...ish
if (_introStateCounter >= context_get_height() + 40)
{
// Stop the track friction sound
if (_soundChannel != nullptr)
{
Mixer_Stop_Channel(_soundChannel);
_soundChannel = nullptr;
}
// Play long peep scream sound
_soundChannel = Mixer_Play_Effect(
OpenRCT2::Audio::SoundId::Scream1, MIXER_LOOP_NONE, MIXER_VOLUME_MAX, 0.5f, 1, false);
gIntroState = IntroState::LogoFadeIn;
_introStateCounter = 0;
}
break;
case IntroState::LogoFadeIn:
// Fade in, add 4 / 256 to fading
_introStateCounter += 0x400;
if (_introStateCounter > 0xFF00)
{
gIntroState = IntroState::LogoWait;
_introStateCounter = 0;
}
break;
case IntroState::LogoWait:
// Wait 80 game ticks
_introStateCounter++;
if (_introStateCounter >= 80)
{
// Set fading to 256
_introStateCounter = 0xFF00;
gIntroState = IntroState::LogoFadeOut;
}
break;
case IntroState::LogoFadeOut:
// Fade out, subtract 4 / 256 from fading
_introStateCounter -= 0x400;
if (_introStateCounter < 0)
{
gIntroState = IntroState::Clear;
}
break;
case IntroState::Clear:
// Stop any playing sound
if (_soundChannel != nullptr)
{
Mixer_Stop_Channel(_soundChannel);
_soundChannel = nullptr;
}
// Move to next part
gIntroState = IntroState::Finish;
_introStateCounter = 0;
break;
case IntroState::Finish:
gIntroState = IntroState::None;
load_palette();
OpenRCT2::Audio::PlayTitleMusic();
break;
default:
break;
}
}
void intro_draw(rct_drawpixelinfo* dpi)
{
int32_t screenWidth = context_get_width();
switch (gIntroState)
{
case IntroState::Disclaimer1:
case IntroState::Disclaimer2:
break;
case IntroState::PublisherBegin:
gfx_clear(dpi, BACKROUND_COLOUR_DARK);
break;
case IntroState::PublisherScroll:
gfx_clear(dpi, BACKROUND_COLOUR_DARK);
// Draw a white rectangle for the logo background (gives a bit of white margin)
gfx_fill_rect(
dpi,
{ { (screenWidth / 2) - 320 + 50, _introStateCounter + 50 },
{ (screenWidth / 2) - 320 + 50 + 540, _introStateCounter + 50 + 425 } },
BORDER_COLOUR_PUBLISHER);
// Draw Infogrames logo
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_INFOGRAMES_00), { (screenWidth / 2) - 320 + 69, _introStateCounter + 69 });
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_INFOGRAMES_10), { (screenWidth / 2) - 320 + 319, _introStateCounter + 69 });
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_INFOGRAMES_01), { (screenWidth / 2) - 320 + 69, _introStateCounter + 319 });
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_INFOGRAMES_11), { (screenWidth / 2) - 320 + 319, _introStateCounter + 319 });
break;
case IntroState::DeveloperBegin:
gfx_clear(dpi, BACKROUND_COLOUR_DARK);
gfx_transpose_palette(PALETTE_G1_IDX_DEVELOPER, 255);
break;
case IntroState::DeveloperScroll:
gfx_clear(dpi, BACKROUND_COLOUR_DARK);
// Draw Chris Sawyer logo
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_CHRIS_SAWYER_00), { (screenWidth / 2) - 320 + 70, _introStateCounter });
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_CHRIS_SAWYER_10), { (screenWidth / 2) - 320 + 320, _introStateCounter });
break;
case IntroState::LogoFadeIn:
if (_introStateCounter <= 0xFF00)
{
gfx_transpose_palette(PALETTE_G1_IDX_LOGO, (_introStateCounter >> 8) & 0xFF);
}
else
{
gfx_transpose_palette(PALETTE_G1_IDX_LOGO, 255);
}
screen_intro_draw_logo(dpi);
break;
case IntroState::LogoWait:
screen_intro_draw_logo(dpi);
break;
case IntroState::LogoFadeOut:
if (_introStateCounter >= 0)
{
gfx_transpose_palette(PALETTE_G1_IDX_LOGO, (_introStateCounter >> 8) & 0xFF);
}
else
{
gfx_transpose_palette(PALETTE_G1_IDX_LOGO, 0);
}
screen_intro_draw_logo(dpi);
break;
case IntroState::Clear:
gfx_clear(dpi, BACKROUND_COLOUR_DARK);
break;
default:
break;
}
}
static void screen_intro_process_mouse_input()
{
if (context_get_cursor_state()->any == CURSOR_PRESSED)
{
screen_intro_skip_part();
}
}
/**
*
* rct2: 0x006E3AEC
*/
static void screen_intro_process_keyboard_input()
{
const uint8_t* keys = context_get_keys_state();
for (int i = 0; i < 256; i++)
{
if (keys[i] != 0)
{
screen_intro_skip_part();
break;
}
}
}
static void screen_intro_skip_part()
{
switch (gIntroState)
{
case IntroState::None:
break;
case IntroState::Disclaimer2:
gIntroState = IntroState::PublisherBegin;
break;
default:
gIntroState = IntroState::Clear;
break;
}
}
static void screen_intro_draw_logo(rct_drawpixelinfo* dpi)
{
int32_t screenWidth = context_get_width();
int32_t imageWidth = 640;
int32_t imageX = (screenWidth - imageWidth) / 2;
drawing_engine_invalidate_image(SPR_INTRO_LOGO_00);
drawing_engine_invalidate_image(SPR_INTRO_LOGO_10);
drawing_engine_invalidate_image(SPR_INTRO_LOGO_20);
drawing_engine_invalidate_image(SPR_INTRO_LOGO_01);
drawing_engine_invalidate_image(SPR_INTRO_LOGO_11);
drawing_engine_invalidate_image(SPR_INTRO_LOGO_21);
gfx_clear(dpi, BACKROUND_COLOUR_LOGO);
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_LOGO_00), { imageX + 0, 0 });
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_LOGO_10), { imageX + 220, 0 });
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_LOGO_20), { imageX + 440, 0 });
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_LOGO_01), { imageX + 0, 240 });
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_LOGO_11), { imageX + 220, 240 });
gfx_draw_sprite(dpi, ImageId(SPR_INTRO_LOGO_21), { imageX + 440, 240 });
}
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