//----------------------------------------------------------------//
void MOAIDraw::DrawGrid ( const ZLRect& rect, u32 xCells, u32 yCells ) {
if ( xCells > 1 ) {
float xStep = rect.Width () / ( float )xCells;
for ( u32 i = 1; i < xCells; ++i ) {
float x = rect.mXMin + (( float )i * xStep );
USVec2D v0 ( x, rect.mYMin );
USVec2D v1 ( x, rect.mYMax );
MOAIDraw::DrawLine ( v0, v1 );
}
}
if ( yCells > 1 ) {
float yStep = rect.Height () / ( float )yCells;
for ( u32 i = 1; i < yCells; ++i ) {
float y = rect.mYMin + (( float )i * yStep );
USVec2D v0 ( rect.mXMin, y );
USVec2D v1 ( rect.mXMax, y );
MOAIDraw::DrawLine ( v0, v1 );
}
}
MOAIDraw::DrawRectOutline ( rect );
}
//----------------------------------------------------------------//
void MOAIGfxDeviceStateCache::SetScissorRect ( ZLRect rect ) {
rect.Bless ();
this->mViewRect.Clip ( rect );
ZLRect& current = this->mScissorRect;
if ( ( current.mXMin != rect.mXMin ) ||
( current.mYMin != rect.mYMin ) ||
( current.mXMax != rect.mXMax ) ||
( current.mYMax != rect.mYMax )) {
this->OnGfxStateWillChange ();
ZLRect deviceRect = this->mCurrentFrameBuffer->WndRectToDevice ( rect );
s32 x = ( s32 )deviceRect.mXMin;
s32 y = ( s32 )deviceRect.mYMin;
u32 w = ( u32 )( deviceRect.Width () + 0.5f );
u32 h = ( u32 )( deviceRect.Height () + 0.5f );
w = h == 0 ? 0 : w;
h = w == 0 ? 0 : h;
zglScissor ( x, y, w, h );
this->mScissorRect = rect;
zglEnable ( ZGL_PIPELINE_SCISSOR );
}
}
//----------------------------------------------------------------//
ZLRect MOAIQuadBrush::GetVtxBounds () {
ZLRect rect;
rect.Init ( this->mModelQuad.mV [ 0 ]);
rect.Grow ( this->mModelQuad.mV [ 1 ]);
rect.Grow ( this->mModelQuad.mV [ 2 ]);
rect.Grow ( this->mModelQuad.mV [ 3 ]);
return rect;
}
/** @name getRect
@text Returns the two dimensional boundary of the frame.
@in MOAIProfilerReportBox self
@out number xMin
@out number yMin
@out number xMax
@out number yMax
*/
int MOAIProfilerReportBox::_getRect ( lua_State* L ) {
MOAI_LUA_SETUP ( MOAIProfilerReportBox, "U" )
ZLRect rect = self->mFrame;
rect.Bless ();
lua_pushnumber ( state, rect.mXMin );
lua_pushnumber ( state, rect.mYMin );
lua_pushnumber ( state, rect.mXMax );
lua_pushnumber ( state, rect.mYMax );
return 4;
}
//----------------------------------------------------------------//
bool ZLFrustum::GetXYSectRect ( const ZLAffine3D& mtx, ZLRect& rect ) const {
u32 nHits = 0;
ZLVec2D hits [ 12 ];
ZLVec3D nlt = this->mPoints [ NEAR_LT_POINT ];
ZLVec3D nrt = this->mPoints [ NEAR_RT_POINT ];
ZLVec3D nrb = this->mPoints [ NEAR_RB_POINT ];
ZLVec3D nlb = this->mPoints [ NEAR_LB_POINT ];
ZLVec3D flt = this->mPoints [ FAR_LT_POINT ];
ZLVec3D frt = this->mPoints [ FAR_RT_POINT ];
ZLVec3D frb = this->mPoints [ FAR_RB_POINT ];
ZLVec3D flb = this->mPoints [ FAR_LB_POINT ];
mtx.Transform ( nlt );
mtx.Transform ( nrt );
mtx.Transform ( nrb );
mtx.Transform ( nlb );
mtx.Transform ( flt );
mtx.Transform ( frt );
mtx.Transform ( frb );
mtx.Transform ( flb );
if ( _vecToXYPlane ( nlt, flt, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( nrt, frt, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( nrb, frb, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( nlb, flb, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( nlt, nrt, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( nrt, nrb, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( nrb, nlb, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( nlb, nlt, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( flt, frt, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( frt, frb, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( frb, flb, hits [ nHits ])) ++nHits;
if ( _vecToXYPlane ( flb, flt, hits [ nHits ])) ++nHits;
if ( nHits ) {
rect.Init ( hits [ 0 ]);
for ( u32 i = 1; i < nHits; ++i ) {
rect.Grow ( hits [ i ]);
}
return true;
}
return false;
}
//----------------------------------------------------------------//
ZLBox MOAIGridDeck2D::GetItemBounds ( u32 idx ) {
ZLBox bounds;
u32 size = this->mBrushes.Size ();
if ( this->mGrid && size ) {
// TODO: handle oversized decks (don't assume unit sized deck items)
idx = ( idx - 1 ) % size;
MOAIGridDeckBrush& brush = this->mBrushes [ idx ];
ZLRect rect = this->mGrid->GetBounds ( brush.mMin, brush.mMax );
rect.Offset ( brush.mOffset.mX - rect.mXMin, brush.mOffset.mY - rect.mYMin );
bounds.Init ( rect.mXMin, rect.mYMax, rect.mXMax, rect.mYMin, 0.0f, 0.0f );
return bounds;
}
bounds.Init ( 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f );
return bounds;
}
//----------------------------------------------------------------//
ZLBox MOAIScriptDeck::ComputeMaxBounds () {
ZLRect rect = this->mRect;
if ( this->mOnTotalRect ) {
MOAILuaStateHandle state = MOAILuaRuntime::Get ().State ();
this->PushLocal ( state, this->mOnTotalRect );
state.DebugCall ( 0, 4 );
rect.mXMin = state.GetValue < float >( -4, 0.0f );
rect.mYMin = state.GetValue < float >( -3, 0.0f );
rect.mXMax = state.GetValue < float >( -2, 0.0f );
rect.mYMax = state.GetValue < float >( -1, 0.0f );
rect.Bless ();
}
ZLBox bounds;
bounds.Init ( rect.mXMin, rect.mYMax, rect.mXMax, rect.mYMin, 0.0f, 0.0f );
return bounds;
}
//----------------------------------------------------------------//
void MOAIDraw::DrawRay ( float x, float y, float dx, float dy ) {
USVec2D loc ( x, y );
USVec2D vec ( dx, dy );
ZLMatrix4x4 mtx = MOAIGfxDevice::Get ().GetViewProjMtx ();
ZLMatrix4x4 invMtx;
invMtx.Inverse ( mtx );
mtx.Transform ( loc );
mtx.TransformVec ( vec );
ZLRect viewRect;
viewRect.Init ( -1.0f, -1.0f, 1.0f, 1.0f );
USVec2D p0;
USVec2D p1;
if ( viewRect.GetIntersection ( loc, vec, p0, p1 )) {
invMtx.Transform ( p0 );
invMtx.Transform ( p1 );
MOAIGfxDevice& gfxDevice = MOAIGfxDevice::Get ();
gfxDevice.BeginPrim ( ZGL_PRIM_LINES );
gfxDevice.WriteVtx ( p0.mX, p0.mY, 0.0f );
gfxDevice.WriteFinalColor4b ();
gfxDevice.WriteVtx ( p1.mX, p1.mY, 0.0f );
gfxDevice.WriteFinalColor4b ();
gfxDevice.EndPrim ();
}
}
//----------------------------------------------------------------//
ZLBox MOAIScriptDeck::GetItemBounds ( u32 idx ) {
ZLRect rect = this->mRect;
if ( this->mOnRect ) {
MOAILuaStateHandle state = MOAILuaRuntime::Get ().State ();
this->PushLocal ( state, this->mOnRect );
lua_pushnumber ( state, idx );
state.DebugCall ( 1, 4 );
rect.mXMin = state.GetValue < float >( -4, 0.0f );
rect.mYMin = state.GetValue < float >( -3, 0.0f );
rect.mXMax = state.GetValue < float >( -2, 0.0f );
rect.mYMax = state.GetValue < float >( -1, 0.0f );
rect.Bless ();
}
ZLBox bounds;
bounds.Init ( rect.mXMin, rect.mYMax, rect.mXMax, rect.mYMin, 0.0f, 0.0f );
return bounds;
}
//----------------------------------------------------------------//
ZLRect MOAIScissorRect::GetScissorRect ( const ZLMatrix4x4& worldToWndMtx ) const {
ZLVec3D vtx3D [ 4 ];
vtx3D [ 0 ].mX = this->mRect.mXMin;
vtx3D [ 0 ].mY = this->mRect.mYMin;
vtx3D [ 0 ].mZ = 0.0f;
vtx3D [ 1 ].mX = this->mRect.mXMin;
vtx3D [ 1 ].mY = this->mRect.mYMax;
vtx3D [ 1 ].mZ = 0.0f;
vtx3D [ 2 ].mX = this->mRect.mXMax;
vtx3D [ 2 ].mY = this->mRect.mYMax;
vtx3D [ 2 ].mZ = 0.0f;
vtx3D [ 3 ].mX = this->mRect.mXMax;
vtx3D [ 3 ].mY = this->mRect.mYMin;
vtx3D [ 3 ].mZ = 0.0f;
ZLMatrix4x4 mtx;
mtx.Init ( this->GetLocalToWorldMtx ());
mtx.Append ( worldToWndMtx );
mtx.Project ( vtx3D [ 0 ]);
mtx.Project ( vtx3D [ 1 ]);
mtx.Project ( vtx3D [ 2 ]);
mtx.Project ( vtx3D [ 3 ]);
ZLRect scissorRect;
scissorRect.Init ( vtx3D [ 0 ]);
scissorRect.Grow ( vtx3D [ 1 ]);
scissorRect.Grow ( vtx3D [ 2 ]);
scissorRect.Grow ( vtx3D [ 3 ]);
if ( this->mScissorRect ) {
ZLRect parentRect = this->mScissorRect->GetScissorRect ( worldToWndMtx );
parentRect.Clip ( scissorRect );
}
return scissorRect;
}
//----------------------------------------------------------------//
void MOAIDraw::DrawRectEdges ( ZLRect rect, u32 edges ) {
rect.Bless ();
// right
if ( edges & ZLRect::kRight ) {
MOAIDraw::DrawLine ( rect.mXMax, rect.mYMin, rect.mXMax, rect.mYMax );
}
// top
if ( edges & ZLRect::kTop ) {
MOAIDraw::DrawLine ( rect.mXMin, rect.mYMin, rect.mXMax, rect.mYMin );
}
// left
if ( edges & ZLRect::kLeft ) {
MOAIDraw::DrawLine ( rect.mXMin, rect.mYMin, rect.mXMin, rect.mYMax );
}
// bottom
if ( edges & ZLRect::kBottom ) {
MOAIDraw::DrawLine ( rect.mXMin, rect.mYMax, rect.mXMax, rect.mYMax );
}
}
//----------------------------------------------------------------//
bool MOAICollisionShape::Overlap ( const ZLRect& s0, const ZLRect& s1 ) {
return s0.Overlap ( s1 );
}
//----------------------------------------------------------------//
void MOAIDraw::DrawAxisGrid ( USVec2D loc, USVec2D vec, float size ) {
ZLMatrix4x4 mtx = MOAIGfxDevice::Get ().GetViewProjMtx ();
ZLMatrix4x4 invMtx;
invMtx.Inverse ( mtx );
// Set the axis to the grid length so we can get the length back post-transform
vec.SetLength ( size );
mtx.Transform ( loc );
mtx.TransformVec ( vec );
// Get the axis unit vector
USVec2D norm = vec;
size = norm.NormSafe ();
// Get the axis normal
USVec2D perpNorm ( norm.mY, -norm.mX );
// Project the corners of the viewport onto the axis to get the mix/max bounds
float dot;
float min;
float max;
USVec2D corner;
// left, top
corner.Init ( -1.0f, 1.0f );
corner.Sub ( loc );
dot = norm.Dot ( corner );
min = dot;
max = dot;
// right, top
corner.Init ( 1.0f, 1.0f );
corner.Sub ( loc );
dot = norm.Dot ( corner );
min = ( dot < min ) ? dot : min;
max = ( dot > max ) ? dot : max;
// right, bottom
corner.Init ( 1.0f, -1.0f );
corner.Sub ( loc );
dot = norm.Dot ( corner );
min = ( dot < min ) ? dot : min;
max = ( dot > max ) ? dot : max;
// left, bottom
corner.Init ( -1.0f, -1.0f );
corner.Sub ( loc );
dot = norm.Dot ( corner );
min = ( dot < min ) ? dot : min;
max = ( dot > max ) ? dot : max;
// Get the start andstop grids
s32 start = ( s32 )( min / size ) - 1;
s32 stop = ( s32 )( max / size ) + 1;
// Set the pen to the first...
USVec2D pen = norm;
pen.Scale (( float )start * size );
pen.Add ( loc );
// Step along the axis to draw perpendicular grid lines
ZLRect viewRect;
viewRect.Init ( -1.0f, -1.0f, 1.0f, 1.0f );
for ( ; start < stop; ++start ) {
USVec2D p0;
USVec2D p1;
if ( viewRect.GetIntersection ( pen, perpNorm, p0, p1 )) {
invMtx.Transform ( p0 );
invMtx.Transform ( p1 );
MOAIDraw::DrawLine ( p0, p1 );
}
pen.Add ( vec );
}
}
//----------------------------------------------------------------//
void MOAIDraw::DrawRectFill ( ZLRect rect, bool asTriStrip ) {
rect.Bless ();
MOAIDraw::DrawRectFill ( rect.mXMin, rect.mYMin, rect.mXMax, rect.mYMax, asTriStrip );
}