- platform independent classes for start screen rendering.

These use the internal 2D drawer. Not hooked up yet.

src/common/startscreen/startscreen_strife.cpp

@@ -0,0 +1,200 @@
+/*
+** st_start.cpp
+** Handles the startup screen.
+**
+**---------------------------------------------------------------------------
+** Copyright 2006-2007 Randy Heit
+** Copyright 2006-2022 Christoph Oelckers
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+**
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+** 3. The name of the author may not be used to endorse or promote products
+**    derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**---------------------------------------------------------------------------
+**
+*/
+
+#include "startscreen.h"
+#include "filesystem.h"
+#include "printf.h"
+#include "image.h"
+#include "palettecontainer.h"
+
+// Strife startup screen
+#define PEASANT_INDEX			0
+#define LASER_INDEX				4
+#define BOT_INDEX				6
+
+#define ST_LASERSPACE_X			60
+#define ST_LASERSPACE_Y			156
+#define ST_LASERSPACE_WIDTH		200
+#define ST_LASER_WIDTH			16
+#define ST_LASER_HEIGHT			16
+
+#define ST_BOT_X				14
+#define ST_BOT_Y				138
+#define ST_BOT_WIDTH			48
+#define ST_BOT_HEIGHT			48
+
+#define ST_PEASANT_X			262
+#define ST_PEASANT_Y			136
+#define ST_PEASANT_WIDTH		32
+#define ST_PEASANT_HEIGHT		64
+
+static const char* StrifeStartupPicNames[] =
+{
+	"STRTPA1", "STRTPB1", "STRTPC1", "STRTPD1",
+	"STRTLZ1", "STRTLZ2",
+	"STRTBOT",
+	"STARTUP0"
+};
+
+
+
+class FStrifeStartScreen : public FStartScreen
+{
+public:
+	FStrifeStartScreen(int max_progress);
+
+	bool DoProgress(int) override;
+protected:
+	void DrawStuff(int old_laser, int new_laser);
+
+	FBitmap StartupPics[4+2+1+1];
+	int NotchPos = 0;
+};
+
+
+//==========================================================================
+//
+// FStrifeStartScreen Constructor
+//
+// Shows the Strife startup screen. If the screen doesn't appear to be
+// valid, it returns a failure code in hr.
+//
+// The startup background is a raw 320x200 image, however Strife only
+// actually uses 95 rows from it, starting at row 57. The rest of the image
+// is discarded. (What a shame.)
+//
+// The peasants are raw 32x64 images. The laser dots are raw 16x16 images.
+// The bot is a raw 48x48 image. All use the standard PLAYPAL.
+//
+//==========================================================================
+
+FStrifeStartScreen::FStrifeStartScreen(int max_progress)
+	: FStartScreen(max_progress)
+{
+	// at this point we do not have a working texture manager yet, so we have to do the lookup via the file system
+
+	int startup_lump = fileSystem.CheckNumForName("STARTUP0");
+
+	if (startup_lump < 0)
+	{
+		I_Error("bad startscreen assets");
+	}
+
+	StartupBitmap.Create(320, 200);
+
+	// Load the animated overlays.
+	for (size_t i = 0; i < countof(StrifeStartupPicNames); ++i)
+	{
+		int lumpnum = fileSystem.CheckNumForName(StrifeStartupPicNames[i], ns_graphics);
+		if (lumpnum < 0) lumpnum = fileSystem.CheckNumForName(StrifeStartupPicNames[i]);
+
+		if (lumpnum >= 0)
+		{
+			auto lumpr1 = FImageSource::GetImage(lumpnum, false);
+			if (lumpr1) StartupPics[i] = lumpr1->GetCachedBitmap(nullptr, FImageSource::normal);
+		}
+	}
+	if (StartupPics[7].GetWidth() != 320 || StartupPics[7].GetHeight() != 200)
+	{
+		I_Error("bad startscreen assets");
+	}
+
+	// Make the startup image appear.
+	DrawStuff(0, 0);
+	Scale = 2;
+	CreateHeader();
+}
+
+//==========================================================================
+//
+// FStrifeStartScreen :: Progress
+//
+// Bumps the progress meter one notch.
+//
+//==========================================================================
+
+bool FStrifeStartScreen::DoProgress(int advance)
+{
+	int notch_pos;
+
+	if (CurPos < MaxPos)
+	{
+		notch_pos = ((CurPos + 1) * (ST_LASERSPACE_WIDTH - ST_LASER_WIDTH)) / MaxPos;
+		if (notch_pos != NotchPos && !(notch_pos & 1))
+		{ // Time to update.
+			DrawStuff(NotchPos, notch_pos);
+			NotchPos = notch_pos;
+		}
+	}
+	return FStartScreen::DoProgress(advance);
+}
+
+//==========================================================================
+//
+// FStrifeStartScreen :: DrawStuff
+//
+// Draws all the moving parts of Strife's startup screen. If you're
+// running off a slow drive, it can look kind of good. Otherwise, it
+// borders on crazy insane fast.
+//
+//==========================================================================
+
+void FStrifeStartScreen::DrawStuff(int old_laser, int new_laser)
+{
+	int y;
+
+	// Clear old laser
+	StartupBitmap.Blit(0, 0, StartupPics[7]);
+
+	// Draw new laser
+	auto& lp = StartupPics[LASER_INDEX + (new_laser & 1)];
+	StartupBitmap.Blit(ST_LASERSPACE_X + new_laser, ST_LASERSPACE_Y, lp);
+
+	// The bot jumps up and down like crazy.
+	y = max(0, (new_laser >> 1) % 5 - 2);
+
+	StartupBitmap.Blit(ST_BOT_X, ST_BOT_Y + y, StartupPics[BOT_INDEX]);
+
+	// The peasant desperately runs in place, trying to get away from the laser.
+	// Yet, despite all his limb flailing, he never manages to get anywhere.
+	auto& pp = StartupPics[PEASANT_INDEX + ((new_laser >> 1) & 3)];
+	StartupBitmap.Blit(ST_PEASANT_X, ST_PEASANT_Y, pp);
+}
+
+
+FStartScreen* CreateStrifeStartScreen(int max_progress)
+{
+	return new FStrifeStartScreen(max_progress);
+}