void Iw2DSprite::Render(CIwSVec2 pPosition)
{
if(m_Angle > 0 || m_Angle < 0)
{
CIwMat2D RotationMatrix;
RotationMatrix.SetRot(m_Angle, CIwVec2(pPosition.x + m_Center.x , pPosition.y + m_Center.y) );
Iw2DSetTransformMatrix(RotationMatrix);
}
if( m_Flip.x > 0 && m_Flip.y > 0)
Iw2DSetImageTransform(IW_2D_IMAGE_TRANSFORM_ROT180);
else if( m_Flip.x > 0 && m_Flip.y <= 0)
Iw2DSetImageTransform(IW_2D_IMAGE_TRANSFORM_FLIP_X);
else if( m_Flip.y > 0 && m_Flip.x <= 0)
Iw2DSetImageTransform(IW_2D_IMAGE_TRANSFORM_FLIP_Y);
Iw2DDrawImageRegion(m_SpriteSheet,
pPosition,
m_FrameSize,
m_DrawRect,
m_FrameSize);
if(m_Angle > 0 || m_Angle < 0)
Iw2DSetTransformMatrix(CIwMat2D::g_Identity);
if( m_Flip.x > 0 || m_Flip.y > 0)
Iw2DSetImageTransform(IW_2D_IMAGE_TRANSFORM_NONE);
}
CIwSVec2 Scythe::getRotatedCoords(CIwSVec2 pos)
{
IW_CALLSTACK("Scythe::getRotatedCoords");
// Transform matrix by rotation matrix and find what the suppplied position would
// be in new post rotation coordinate system
Iw2DSetTransformMatrix(mRot);
CIwMat2D transformationMatrix = Iw2DGetTransformMatrix();
CIwVec2 transformedPosition = transformationMatrix.TransformVec(pos);
Iw2DSetTransformMatrix(CIwMat2D::g_Identity);
return CIwSVec2(transformedPosition);
}
void myIwGxDrawStar(int x, int y, CIwSVec2 texpos, int iscale, iwangle rotval, int alphaf)
{
CIwMat2D transformMatrix;
int i;
//
if (ssend_vertices + 4 > (MX_VERTICES))
{
myIwGxDoneBonus();
ssend_vertices = 0;
}
transformMatrix = CIwMat2D::g_Identity;
transformMatrix.SetRot(rotval, CIwVec2(x, y));
//
// 0 = top-left
// 1 = bottom-left
// 2 = bottom-right
// 3 = top-right
//
svertices[ssend_vertices + 0].x = x - iscale;
svertices[ssend_vertices + 0].y = y - iscale;
svertices[ssend_vertices + 1].x = x - iscale;
svertices[ssend_vertices + 1].y = y + iscale;
svertices[ssend_vertices + 2].x = x + iscale;
svertices[ssend_vertices + 2].y = y + iscale;
svertices[ssend_vertices + 3].x = x + iscale;
svertices[ssend_vertices + 3].y = y - iscale;
//
suvdata[ssend_vertices + 0].x = (texpos.x) << 3;
suvdata[ssend_vertices + 0].y = (texpos.y) << 3;
suvdata[ssend_vertices + 1].x = (texpos.x) << 3;
suvdata[ssend_vertices + 1].y = (texpos.y + 32) << 3;
suvdata[ssend_vertices + 2].x = (texpos.x + 32) << 3;
suvdata[ssend_vertices + 2].y = (texpos.y + 32) << 3;
suvdata[ssend_vertices + 3].x = (texpos.x + 32) << 3;
suvdata[ssend_vertices + 3].y = (texpos.y) << 3;
//
scolors[ssend_vertices + 0].Set(0xFF, 0xFF, 0xFF, (uint8)(alphaf));
scolors[ssend_vertices + 1].Set(0xFF, 0xFF, 0xFF, (uint8)(alphaf));
scolors[ssend_vertices + 2].Set(0xFF, 0xFF, 0xFF, (uint8)(alphaf));
scolors[ssend_vertices + 3].Set(0xFF, 0xFF, 0xFF, (uint8)(alphaf));
//
for (i = 0; i < 4; i++)
svertices[ssend_vertices + i] = transformMatrix.TransformVec(svertices[ssend_vertices + i]);
ssend_vertices += 4;
//
}
void TileSet::Render(int index,CIwSVec2 topLeft,int rotation)
{
int ind=index-m_firstGid;
if(ind<0)
return;
int index_X=ind%_tilesPerRow;
int index_Y=ind/_tilesPerRow;
CIwSVec2 pos = CIwSVec2(index_X * _tilewidth,index_Y * _tileheight);
if(rotation!=0)
{
iwangle angle =90*rotation;//90 degrees
CIwSVec2 centre=CIwSVec2(iwsfixed(topLeft.x+(float)_tilewidth/2.0f),iwsfixed(topLeft.y+(float)_tileheight/2.0f));
CIwMat2D rot;
rot.SetRot(IW_ANGLE_FROM_DEGREES(angle), CIwVec2(centre));
Iw2DSetTransformMatrix(rot);
}
Iw2DDrawImageRegion(_image, topLeft, pos, _tileSize);
Iw2DSetTransformMatrix(CIwMat2D::g_Identity);
}
//-----------------------------------------------------------------------------
void ExampleRender()
{
static const CIwSVec2 imageSize(g_Image->GetWidth() >> 3, g_Image->GetHeight() >> 3);
static const CIwSVec2 halfImageSize = imageSize >> 1;
const CIwSVec2 screenCentre = CIwSVec2((int16)Iw2DGetSurfaceWidth() >> 1, (int16)Iw2DGetSurfaceHeight() >> 1);
const b2Transform t = g_body->GetTransform();
const CIwSVec2 pos = screenCentre + (CIwSVec2(int16(t.p.x*8), -int16(t.p.y*8)));
const float angle = -t.q.GetAngle() * (180.0f/3.14159f); // reverse angle as our screen-Y coord is reversed
CIwMat2D rot;
rot.SetRot(iwangle(angle * 1024 / 90), CIwVec2(pos) << 3);
Iw2DSetTransformMatrixSubPixel(rot);
Iw2DDrawImage(g_Image, pos - halfImageSize, imageSize);
//
Iw2DSetTransformMatrix(CIwMat2D::g_Identity);
Iw2DSurfaceShow();
}
