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Added support for mirrored sprites.

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svn-id: r42067
This commit is contained in:
Denis Kasak 2009-07-03 17:39:13 +00:00
parent 8e9771d15c
commit 90e6ff9d8a
2 changed files with 33 additions and 8 deletions
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37
engines/draci/sprite.cpp
View File

@ -61,7 +61,8 @@ Sprite::Sprite(byte *raw_data, uint16 width, uint16 height, uint x, uint y,
_x = x;
_y = y;
_z = z;
_mirror = false;
_data = new byte[width * height];
memcpy(_data, raw_data, width * height);
@ -82,7 +83,8 @@ Sprite::Sprite(byte *sprite_data, uint16 length, uint x, uint y, uint z,
_x = x;
_y = y;
_z = z;
_mirror = false;
Common::MemoryReadStream reader(sprite_data, length);
_width = reader.readUint16LE();
@ -102,6 +104,14 @@ Sprite::~Sprite() {
delete[] _data;
}
void Sprite::setMirrorOn() {
_mirror = true;
}
void Sprite::setMirrorOff() {
_mirror = false;
}
/**
* @brief Draws the sprite to a Draci::Surface
* @param surface Pointer to a Draci::Surface
@ -113,14 +123,25 @@ void Sprite::draw(Surface *surface, bool markDirty) const {
byte *src = _data;
// Blit the sprite to the surface
for (unsigned int i = 0; i < _height; ++i) {
for(unsigned int j = 0; j < _width; ++j, ++src) {
for (int i = 0; i < _height; ++i) {
// Don't blit if the pixel is transparent on the target surface
if (*src != surface->getTransparentColour())
dst[j] = *src;
// Draw the sprite mirrored if the _mirror flag is set
if (_mirror) {
for(int j = _width - 1; j >= 0; --j, ++src) {
// Don't blit if the pixel is transparent on the target surface
if (*src != surface->getTransparentColour())
dst[j] = *src;
}
} else {
for(int j = 0; j < _width; ++j, ++src) {
// Don't blit if the pixel is transparent on the target surface
if (*src != surface->getTransparentColour())
dst[j] = *src;
}
}
dst += surface->pitch;
}

4
engines/draci/sprite.h
View File

@ -84,11 +84,15 @@ public:
~Sprite();
void draw(Surface *surface, bool markDirty = true) const;
void setMirrorOn();
void setMirrorOff();
const byte *getBuffer() const { return _data; }
private:
byte *_data; //!< Pointer to a buffer containing raw sprite data (row-wise)
bool _mirror;
};
class Text : public Drawable {