<?phpnamespace App\Titus;/** * draw.c, fonts.c and viewimage.c: drawing into the screen (Screen display list), the status and * password screens, the font of FONTS.SQZ, the fades. */trait DrawTrait{ /** @var int[] the tile screen (C tilescreen): 20x12 circular buffer of displayed tile indexes */ public array $tilescreen = []; /** @var array<int, string> character -> glyph key in the font atlas */ private array $fontChars = []; /** Draw tiles on the backbuffer (copy from the tile screen) */ public function TFR_SCREENM(): void { // First of all: make the screen black, at least the lower part of the screen $this->screen->fillRect(0, self::screen_height * 16, self::screen_width * 16, Screen::HEIGHT - self::screen_height * 16, [0, 0, 0]); $this->copytiles(0, 0, self::screen_width * 16, self::screen_height * 16); } /** gates.c copytiles(): a rectangle of the tile screen to the same place of the output screen */ public function copytiles(int $destX, int $destY, int $width, int $height): void { $this->screen->tiles($this->tilescreen, $this->BITMAP_XM, $this->BITMAP_YM, [$destX, $destY, $width, $height]); } /** * Loop through all sprites, and draw the sprites that should be visible on the screen (NOT by using the * visible flag, it uses the coordinates). If the flash bit is set, the first 3 planes will be 0, the last * plane will be normal (colour & 0x01, odd colors gets white, even colours gets black) */ public function DISPLAY_SPRITES(Level $level): void { for ($i = $level->elevatorcount - 1; $i >= 0; $i--) { $this->display_sprite($level, $level->elevator[$i]->sprite); } for ($i = $level->trashcount - 1; $i >= 0; $i--) { $this->display_sprite($level, $level->trash[$i]); } for ($i = $level->enemycount - 1; $i >= 0; $i--) { $this->display_sprite($level, $level->enemy[$i]->sprite); } for ($i = $level->objectcount - 1; $i >= 0; $i--) { $this->display_sprite($level, $level->object[$i]->sprite); } $this->display_sprite($level, $level->player->sprite3); $this->display_sprite($level, $level->player->sprite2); $this->display_sprite($level, $level->player->sprite); if ($this->GODMODE) { $this->SDL_Print_Text('GODMODE', 30 * 8, 0 * 12); } if ($this->NOCLIP) { $this->SDL_Print_Text('NOCLIP', 30 * 8, 1 * 12); } } public function display_sprite(Level $level, Sprite $spr): void { if (!$spr->enabled || $spr->invisible) { return; } $spr->visible = false; $data = $spr->spritedata ?? $level->spritedata[$spr->number]; if (!$spr->flipped) { $x = $spr->x - $data->refwidth - ($this->BITMAP_X << 4); } else { $x = $spr->x + $data->refwidth - $data->w - ($this->BITMAP_X << 4); } $y = $spr->y + $data->refheight - $data->h + 1 - ($this->BITMAP_Y << 4); if ($x >= self::screen_width * 16 || $x + $data->w < 0 || $y + $data->h < 0 || $y >= self::screen_height * 16) { return; } $sx = 0; $sy = 0; $sw = $data->w; $sh = $data->h; if ($x < 0) { $sx = -$x; $sw -= $sx; $x = 0; } if ($y < 0) { $sy = -$y; $sh -= $sy; $y = 0; } if ($x + $sw > self::screen_width * 16) { $sw = self::screen_width * 16 - $x; } if ($y + $sh > self::screen_height * 16) { $sh = self::screen_height * 16 - $y; } if ($sw > 0 && $sh > 0) { [$ax, $ay] = $this->screen->spriteRects[$data->index]; // the clipping is computed on the flipped image: mirror it back into the texture $tx = $spr->flipped ? $data->w - $sx - $sw : $sx; $this->screen->blit($spr->flash ? 'sprites-flash' : 'sprites', [$ax + $tx, $ay + $sy, $sw, $sh], $x, $y, $spr->flipped); } $spr->visible = true; $spr->flash = false; } /** Flips the screen and waits (NO_FAST_CPU: 29 ms in game = 35 Hz, 10 ms for the quick flips) */ public function flip_screen(bool $slow): \Generator { $this->screen->flip(); yield $slow ? 29 : 10; } /** A frame of a waiting loop (titus_sleep + flip) */ public function titus_flip(): \Generator { $this->screen->flip(); yield 0; } /** View status screen (F4) */ public function viewstatus(Level $level, bool $countbonus): \Generator { $this->screen->clear(); $this->SDL_Print_Text('ETAPE', 13 * 8, 12 * 5); $this->SDL_Print_Text('EXTRA BONUS', 10 * 8, 10 * 12); $this->SDL_Print_Text('VIE', 10 * 8, 11 * 12); $tmp = (string)($level->levelnumber + 1); $this->SDL_Print_Text($tmp, 25 * 8 - strlen($tmp) * 8, 12 * 5); $this->SDL_Print_Text(self::LEVEL_TITLES[$level->levelnumber], 0, 12 * 5 + 16); $tmp = (string)$level->extrabonus; $this->SDL_Print_Text($tmp, 28 * 8 - strlen($tmp) * 8, 10 * 12); $tmp = (string)$level->lives; $this->SDL_Print_Text($tmp, 28 * 8 - strlen($tmp) * 8, 11 * 12); $this->screen->flip(); if ($countbonus && $level->extrabonus >= 10) { $retval = yield from $this->waitforbutton(); if ($retval < 0) { return $retval; } while ($level->extrabonus >= 10) { for ($i = 0; $i < 10; $i++) { $level->extrabonus--; $tmp = sprintf('%2d', $level->extrabonus); $this->SDL_Print_Text($tmp, 28 * 8 - strlen($tmp) * 8, 10 * 12); $this->screen->flip(); for ($j = 0; $j < 15; $j++) { yield 10; } } $level->lives++; $tmp = (string)$level->lives; $this->SDL_Print_Text($tmp, 28 * 8 - strlen($tmp) * 8, 11 * 12); $this->screen->flip(); for ($j = 0; $j < 10; $j++) { yield 10; } } } $retval = yield from $this->waitforbutton(); if ($retval < 0) { return $retval; } $this->screen->clear(); $this->screen->flip(); return 0; } /** Initialize backbuffer */ public function INIT_SCREENM(Level $level): \Generator { yield from $this->CLOSE_SCREEN(); $this->BITMAP_X = 0; $this->BITMAP_Y = 0; $this->BITMAP_XM = 0; $this->BITMAP_YM = 0; $this->tilescreen = array_fill(0, 240, 0); for ($i = 0; $i < 20; $i++) { for ($j = 0; $j < 12; $j++) { $this->DISPLAY_CHAR($level, $level->tilemap[$this->BITMAP_Y + $j][$this->BITMAP_X + $i] ?? 0, $j, $i); } } $guard = 0; do { $this->scroll($level); } while (($this->YSCROLL_CENTER || $this->XSCROLL_CENTER) && ++$guard < 2000); yield from $this->OPEN_SCREEN(); } /** Draw energy */ public function DISPLAY_COUNT(Level $level): void { $this->subto0($this->BAR_FLAG); if ($this->BAR_FLAG !== 0) { $this->DISPLAY_ENERGY($level); } } public function DISPLAY_ENERGY(Level $level): void { $offset = 96; for ($i = 0; $i < $level->player->hp; $i++) { // Draw big bars (4px*16px, spacing 4px) $this->screen->fillRect($offset, 9, 4, 16, [255, 255, 255]); $offset += 8; } for ($i = 0; $i < self::MAXIMUM_ENERGY - $level->player->hp; $i++) { // Draw small bars (4px*4px, spacing 4px) $this->screen->fillRect($offset, 15, 4, 4, [255, 255, 255]); $offset += 8; } } /** Fade the screen to black */ public function fadeout(): \Generator { $fadeTime = 1000; $base = $this->screen->snapshot(); $tickStart = $this->SDL_GetTicks(); $alpha = 0; while ($alpha < 255) { foreach ($this->pollEvents() as [$type, $key]) { if ($type === 'down') { if ($key === self::KEY_ESC) { $this->screen->restore($base); return -1; } $this->musicKey($key); } } $alpha = min(255, intdiv(($this->SDL_GetTicks() - $tickStart) * 256, $fadeTime)); $this->screen->restore($base); $this->screen->fillRect(0, 0, Screen::WIDTH, Screen::HEIGHT, [0, 0, 0, $alpha]); yield from $this->titus_flip(); } $this->screen->clear(); return 0; } /** Display the password ! */ public function view_password(Level $level, int $level_index): \Generator { yield from $this->CLOSE_SCREEN(); $this->screen->clear(); $this->screen->flip(); $this->SDL_Print_Text('ETAPE', 13 * 8, 13 * 8); $tmp = (string)($level_index + 1); $this->SDL_Print_Text($tmp, 25 * 8 - strlen($tmp) * 8, 13 * 8); $this->SDL_Print_Text('CODE', 14 * 8, 10 * 8); $this->SDL_Print_Text(self::LEVEL_CODES[$level_index] ?? '', 20 * 8, 10 * 8); $this->screen->flip(); $retval = yield from $this->waitforbutton(); if ($retval < 0) { return $retval; } yield from $this->OPEN_SCREEN(); return 0; } // --- fonts.c ---------------------------------------------------------------------------------------- public function loadfonts(): void { $b = Sqz::load($this->file('FONTS.SQZ')); $order = '0123456789!?.$_ABCDEFGHIJKLMNOPQRSTUVWXYZ'; $images = []; for ($i = 0; $i < strlen($order); $i++) { $images[$order[$i]] = ['w' => 8, 'h' => 12, 'pixels' => Gfx::planar($b, $i * 48, 8, 12)]; } $images[' '] = ['w' => 8, 'h' => 12, 'pixels' => str_repeat("\x01", 96)]; $this->screen->fontRects = Gfx::atlas($this->sdl, 'font', $images, OriginalData::PALETTE_FONT, false, 512); } public function SDL_Print_Text(string $text, int $x, int $y): void { $rects = $this->screen->fontRects; for ($i = 0, $n = strlen($text); $i < $n; $i++) { $c = strtoupper($text[$i]); $rect = $rects[$c] ?? $rects['?']; $this->screen->blit('font', $rect, $x, $y); $x += 8; } } public function viewintrotext(): \Generator { $year = (int)date('Y'); $this->screen->clear(); $this->SDL_Print_Text(' YEAAA . . .', 0, 5 * 12); $this->SDL_Print_Text("YOU ARE STILL PLAYING MOKTAR IN $year !!", 0, 6 * 12); $this->SDL_Print_Text(' PROGRAMMED IN 1991 ON AT .286 12MHZ.', 0, 12 * 12); $this->SDL_Print_Text(' . . . ENJOY MOKTAR ADVENTURE !!', 0, 13 * 12); $this->screen->flip(); $retval = yield from $this->waitforbutton(); if ($retval < 0) { return $retval; } $this->SDL_Print_Text(' YEAAA . . .', 0, 5 * 12); $this->SDL_Print_Text("YOU ARE STILL PLAYING MOKTAR IN $year !!", 0, 6 * 12); $this->SDL_Print_Text(' REPROGRAMMED IN 2026 IN PHP + JUMPHP.', 0, 12 * 12); $this->SDL_Print_Text(' . . . ENJOY MOKTAR ADVENTURE !!', 0, 13 * 12); $this->screen->flip(); $retval = yield from $this->waitforbutton(); if ($retval < 0) { return $retval; } return 0; } // --- viewimage.c ------------------------------------------------------------------------------------ /** Loads a 320x200 picture of the original files as a texture; returns its name. */ public function loadimage(string $file, int $format): string { $name = 'image-' . $file; if ($this->sdl->hasTexture($name)) { return $name; } $data = Sqz::load($this->file($file)); if ($format === 2) { // 256 colours + palette $palette = []; for ($i = 0; $i < 256; $i++) { $palette[$i] = [(ord($data[$i * 3]) & 0x3F) * 4, (ord($data[$i * 3 + 1]) & 0x3F) * 4, (ord($data[$i * 3 + 2]) & 0x3F) * 4]; } $pixels = substr($data, 256 * 3, 320 * 200); } else { // planar 16-colour grayscale $palette = []; for ($i = 0; $i < 16; $i++) { $palette[$i] = [$i * 16, $i * 16, $i * 16]; } $pixels = Gfx::planar($data, 0, 320, 200); } Gfx::texture($this->sdl, $name, 320, 200, $pixels, $palette, false); return $name; } /** * Displays an image (menu, logo, intro). $displayformat 0: fade in, wait $delay ms (or a key), fade * out; 1: visible until keypress, then fade out. */ public function viewimage(string $file, int $imageformat, int $displayformat, int $delay): \Generator { $image = $this->loadimage($file, $imageformat); $fadeTime = 1000; $alpha = 0; $fadeoutskip = 0; $activedelay = true; $draw = function (int $alpha) use ($image): void { $this->screen->clear(); $this->screen->blit($image, [0, 0, 320, 200], 0, 0); if ($alpha < 255) { $this->screen->fillRect(0, 0, 320, 200, [0, 0, 0, 255 - $alpha]); } }; if ($displayformat === 0) { $tickStart = $this->SDL_GetTicks(); while ($alpha < 255 && $activedelay) { // Fade to visible foreach ($this->pollEvents() as [$type, $key]) { if ($type !== 'down') { continue; } if ($key === self::KEY_ESC) { return -1; } if ($key === self::KEY_RETURN || $key === self::KEY_SPACE) { $activedelay = false; $fadeoutskip = 255 - $alpha; } $this->musicKey($key); } $alpha = min(255, intdiv(($this->SDL_GetTicks() - $tickStart) * 256, $fadeTime)); $draw($alpha); yield from $this->titus_flip(); } while ($activedelay) { // Visible delay foreach ($this->pollEvents() as [$type, $key]) { if ($type !== 'down') { continue; } if ($key === self::KEY_ESC) { return -1; } if ($key === self::KEY_RETURN || $key === self::KEY_SPACE) { $activedelay = false; } $this->musicKey($key); } yield from $this->titus_flip(); if ($this->SDL_GetTicks() - $tickStart + $fadeTime >= $delay) { $activedelay = false; } } $alpha = 255 - $alpha; } else { $draw(255); $this->screen->flip(); $retval = yield from $this->waitforbutton(); if ($retval < 0) { return $retval; } $fadeoutskip = 0; $alpha = 0; } $tickStart = $this->SDL_GetTicks(); while ($alpha < 255) { // Fade to black foreach ($this->pollEvents() as [$type, $key]) { if ($type === 'down') { if ($key === self::KEY_ESC) { return -1; } $this->musicKey($key); } } $alpha = min(255, intdiv(($this->SDL_GetTicks() - $tickStart) * 256, $fadeTime) + $fadeoutskip); $draw(255 - $alpha); yield from $this->titus_flip(); } return 0; }}