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OpenRCT2/src/openrct2/Intro.cpp

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#pragma region Copyright (c) 2014-2017 OpenRCT2 Developers
/*****************************************************************************
* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
*
* OpenRCT2 is the work of many authors, a full list can be found in contributors.md
* For more information, visit https://github.com/OpenRCT2/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.
*
* A full copy of the GNU General Public License can be found in licence.txt
*****************************************************************************/
#pragma endregion
#include "audio/audio.h"
#include "audio/AudioMixer.h"
#include "Context.h"
#include "drawing/Drawing.h"
#include "Intro.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
#define PALETTE_G1_IDX_DEVELOPER 23217
#define PALETTE_G1_IDX_LOGO 23224
uint8 gIntroState;
// Used mainly for timing but also for Y coordinate and fading.
static sint32 _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 INTRO_STATE_DISCLAIMER_1:
case INTRO_STATE_DISCLAIMER_2:
// Originally used for the disclaimer text
gIntroState = INTRO_STATE_PUBLISHER_BEGIN;
case INTRO_STATE_PUBLISHER_BEGIN:
load_palette();
// Set the Y for the Infogrames logo
_introStateCounter = -580;
// Play the chain lift sound
_soundChannel = Mixer_Play_Effect(SOUND_LIFT_7, MIXER_LOOP_INFINITE, MIXER_VOLUME_MAX, 0.5f, 1, true);
_chainLiftFinished = false;
gIntroState++;
break;
case INTRO_STATE_PUBLISHER_SCROLL:
// Move the Infogrames logo down
_introStateCounter += 5;
// Check if logo is off the screen...ish
if (_introStateCounter > context_get_height() - 120) {
_introStateCounter = -116;
gIntroState++;
}
break;
case INTRO_STATE_DEVELOPER_BEGIN:
// Set the Y for the Chris Sawyer logo
_introStateCounter = -116;
gIntroState++;
break;
case INTRO_STATE_DEVELOPER_SCROLL:
_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(SOUND_TRACK_FRICTION_3, 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(SOUND_SCREAM_1, MIXER_LOOP_NONE, MIXER_VOLUME_MAX, 0.5f, 1, false);
gIntroState++;
_introStateCounter = 0;
}
break;
case INTRO_STATE_LOGO_FADE_IN:
// Fade in, add 4 / 256 to fading
_introStateCounter += 0x400;
if (_introStateCounter > 0xFF00) {
gIntroState++;
_introStateCounter = 0;
}
break;
case INTRO_STATE_LOGO_WAIT:
// Wait 80 game ticks
_introStateCounter++;
if (_introStateCounter >= 80) {
// Set fading to 256
_introStateCounter = 0xFF00;
gIntroState++;
}
break;
case INTRO_STATE_LOGO_FADE_OUT:
// Fade out, subtract 4 / 256 from fading
_introStateCounter -= 0x400;
if (_introStateCounter < 0) {
gIntroState = INTRO_STATE_CLEAR;
}
break;
case INTRO_STATE_CLEAR:
// Stop any playing sound
if (_soundChannel != nullptr) {
Mixer_Stop_Channel(_soundChannel);
_soundChannel = nullptr;
}
// Move to next part
gIntroState++;
_introStateCounter = 0;
break;
case INTRO_STATE_FINISH:
gIntroState = INTRO_STATE_NONE;
load_palette();
audio_start_title_music();
break;
}
}
void intro_draw(rct_drawpixelinfo *dpi)
{
sint32 screenWidth = context_get_width();
switch (gIntroState) {
case INTRO_STATE_DISCLAIMER_1:
case INTRO_STATE_DISCLAIMER_2:
break;
case INTRO_STATE_PUBLISHER_BEGIN:
gfx_clear(dpi, BACKROUND_COLOUR_DARK);
break;
case INTRO_STATE_PUBLISHER_SCROLL:
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, SPR_INTRO_INFOGRAMES_00, (screenWidth / 2) - 320 + 69, _introStateCounter + 69, 0);
gfx_draw_sprite(dpi, SPR_INTRO_INFOGRAMES_10, (screenWidth / 2) - 320 + 319, _introStateCounter + 69, 0);
gfx_draw_sprite(dpi, SPR_INTRO_INFOGRAMES_01, (screenWidth / 2) - 320 + 69, _introStateCounter + 319, 0);
gfx_draw_sprite(dpi, SPR_INTRO_INFOGRAMES_11, (screenWidth / 2) - 320 + 319, _introStateCounter + 319, 0);
break;
case INTRO_STATE_DEVELOPER_BEGIN:
gfx_clear(dpi, BACKROUND_COLOUR_DARK);
gfx_transpose_palette(PALETTE_G1_IDX_DEVELOPER, 255);
break;
case INTRO_STATE_DEVELOPER_SCROLL:
gfx_clear(dpi, BACKROUND_COLOUR_DARK);
// Draw Chris Sawyer logo
gfx_draw_sprite(dpi, SPR_INTRO_CHRIS_SAWYER_00, (screenWidth / 2) - 320 + 70, _introStateCounter, 0);
gfx_draw_sprite(dpi, SPR_INTRO_CHRIS_SAWYER_10, (screenWidth / 2) - 320 + 320, _introStateCounter, 0);
break;
case INTRO_STATE_LOGO_FADE_IN:
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 INTRO_STATE_LOGO_WAIT:
screen_intro_draw_logo(dpi);
break;
case INTRO_STATE_LOGO_FADE_OUT:
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 INTRO_STATE_CLEAR:
gfx_clear(dpi, BACKROUND_COLOUR_DARK);
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 * 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 INTRO_STATE_NONE:
break;
case INTRO_STATE_DISCLAIMER_2:
gIntroState = INTRO_STATE_PUBLISHER_BEGIN;
break;
default:
gIntroState = INTRO_STATE_CLEAR;
break;
}
}
static void screen_intro_draw_logo(rct_drawpixelinfo *dpi)
{
sint32 screenWidth = context_get_width();
sint32 imageWidth = 640;
sint32 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, SPR_INTRO_LOGO_00, imageX + 0, 0, 0);
gfx_draw_sprite(dpi, SPR_INTRO_LOGO_10, imageX + 220, 0, 0);
gfx_draw_sprite(dpi, SPR_INTRO_LOGO_20, imageX + 440, 0, 0);
gfx_draw_sprite(dpi, SPR_INTRO_LOGO_01, imageX + 0, 240, 0);
gfx_draw_sprite(dpi, SPR_INTRO_LOGO_11, imageX + 220, 240, 0);
gfx_draw_sprite(dpi, SPR_INTRO_LOGO_21, imageX + 440, 240, 0);
}
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