diff options
Diffstat (limited to 'engines/titanic/star_control')
-rw-r--r-- | engines/titanic/star_control/frect.cpp | 39 | ||||
-rw-r--r-- | engines/titanic/star_control/frect.h | 58 | ||||
-rw-r--r-- | engines/titanic/star_control/star_points1.cpp | 6 | ||||
-rw-r--r-- | engines/titanic/star_control/star_points1.h | 2 | ||||
-rw-r--r-- | engines/titanic/star_control/surface_area.cpp | 71 | ||||
-rw-r--r-- | engines/titanic/star_control/surface_area.h | 3 |
6 files changed, 177 insertions, 2 deletions
diff --git a/engines/titanic/star_control/frect.cpp b/engines/titanic/star_control/frect.cpp new file mode 100644 index 0000000000..f481a6ca34 --- /dev/null +++ b/engines/titanic/star_control/frect.cpp @@ -0,0 +1,39 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "titanic/star_control/frect.h" + +namespace Titanic { + +bool FRect::operator==(const FRect &r) const { + return left == r.left && top == r.top && right == r.right && bottom == r.bottom; +} + +bool FRect::operator!=(const FRect &r) const { + return !operator==(r); +} + +bool FRect::empty() const { + return left == right && top == bottom; +} + +} // End of namespace Titanic diff --git a/engines/titanic/star_control/frect.h b/engines/titanic/star_control/frect.h new file mode 100644 index 0000000000..cfe9970ba6 --- /dev/null +++ b/engines/titanic/star_control/frect.h @@ -0,0 +1,58 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#ifndef TITANIC_FRECT_H +#define TITANIC_FRECT_H + +namespace Titanic { + +/** + * Floating point rect class + */ +class FRect { +public: + double left, top; + double right, bottom; +public: + FRect() : left(0), top(0), right(0), bottom(0) {} + FRect(double left, double top, double right, double bottom) : + left(left), top(top), right(right), bottom(bottom) {} + + /** + * Returns true if the rects equal + */ + bool operator==(const FRect &p) const; + + /** + * Returns true if the rects are not equal + */ + bool operator!=(const FRect &p) const; + + /** + * Returns true if the rect is empty + */ + bool empty() const; +}; + +} // End of namespace Titanic + +#endif /* TITANIC_FRECT_H */ diff --git a/engines/titanic/star_control/star_points1.cpp b/engines/titanic/star_control/star_points1.cpp index a8462389c3..8719551746 100644 --- a/engines/titanic/star_control/star_points1.cpp +++ b/engines/titanic/star_control/star_points1.cpp @@ -57,10 +57,14 @@ bool CStarPoints1::initialize() { return true; } -void CStarPoints1::draw(CSurfaceArea *surface, CStarControlSub12 *img) { +void CStarPoints1::draw(CSurfaceArea *surface, CStarControlSub12 *sub12) { if (_data.empty()) return; + CStarControlSub6 sub6 = sub12->proc23(); + sub12->proc25(); + + FVector &v0 = _data[0]; // TODO diff --git a/engines/titanic/star_control/star_points1.h b/engines/titanic/star_control/star_points1.h index a6e4ee2ec9..14f5b74afe 100644 --- a/engines/titanic/star_control/star_points1.h +++ b/engines/titanic/star_control/star_points1.h @@ -45,7 +45,7 @@ public: /** * Draw the starfield points */ - void draw(CSurfaceArea *surface, CStarControlSub12 *img); + void draw(CSurfaceArea *surface, CStarControlSub12 *sub12); }; } // End of namespace Titanic diff --git a/engines/titanic/star_control/surface_area.cpp b/engines/titanic/star_control/surface_area.cpp index 2d25d64541..5d72725636 100644 --- a/engines/titanic/star_control/surface_area.cpp +++ b/engines/titanic/star_control/surface_area.cpp @@ -106,4 +106,75 @@ void CSurfaceArea::pixelToRGB(uint pixel, uint *rgb) { } } +double CSurfaceArea::fn1(const FRect &rect) { + if (rect.empty()) + return rect.top; + + double xp = rect.left, yp = rect.top; + FRect r = rect; + + // edx=flags1, esi=flags2 + int flags1 = (r.left < _bounds.left ? 1 : 0) + | (r.left > _bounds.right ? 2 : 0) + | (r.top < _bounds.top ? 4 : 0) + | (r.top > _bounds.bottom ? 8 : 0); + int flags2 = (r.right < _bounds.left ? 1 : 0) + | (r.right > _bounds.right ? 2 : 0) + | (r.bottom < _bounds.top ? 4 : 0) + | (r.bottom > _bounds.bottom ? 8 : 0); + + // Handle any clipping + while (flags1 | flags2) { + if (flags1 & flags2) + return r.top; + + int flags = flags1 ? flags1 : flags2; + if ((flags & 1) || (flags & 2)) { + xp = (flags & 1) ? _bounds.left : _bounds.right; + yp = (r.bottom - r.top) * (xp - r.left) / (r.right - r.left) + r.top; + } else if ((flags & 4) || (flags & 8)) { + yp = (flags & 4) ? _bounds.top : _bounds.bottom; + xp = (r.right - r.left) * (yp - r.top) / (r.bottom - r.top) + r.left; + } + + if (flags == flags1) { + r.left = xp; + r.top = yp; + + flags1 = 0; + if (xp < _bounds.left) + flags1 |= 1; + if (xp > _bounds.right) + flags1 |= 2; + if (yp < _bounds.top) + flags1 |= 4; + if (yp > _bounds.bottom) + flags1 |= 8; + } else { + r.right = xp; + r.bottom = yp; + + flags2 = 0; + if (xp < _bounds.left) + flags2 |= 1; + if (xp > _bounds.right) + flags2 |= 2; + if (yp < _bounds.top) + flags2 |= 4; + if (yp > _bounds.bottom) + flags2 |= 8; + } + } + + Common::Rect rr(round(r.left), round(r.top), round(r.right), round(r.bottom)); + if (rr.left > rr.right) { + SWAP(rr.left, rr.right); + SWAP(rr.top, rr.bottom); + } + + // TODO: Lots more functionality + + return r.top; +} + } // End of namespace Titanic diff --git a/engines/titanic/star_control/surface_area.h b/engines/titanic/star_control/surface_area.h index bb851b7a07..dcff5ec50d 100644 --- a/engines/titanic/star_control/surface_area.h +++ b/engines/titanic/star_control/surface_area.h @@ -26,6 +26,7 @@ #include "titanic/support/rect.h" #include "titanic/support/video_surface.h" #include "titanic/star_control/fpoint.h" +#include "titanic/star_control/frect.h" namespace Titanic { @@ -77,6 +78,8 @@ public: * Sets the color from the current pixel */ void setColorFromPixel(); + + double fn1(const FRect &rect); }; } // End of namespace Titanic |