actions/itgmania212121
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

draw directly; too many vertices to generate this stuff on the fly

Browse Source
This commit is contained in:
Glenn Maynard
2005-08-30 18:06:21 +00:00
parent 1129de388d
commit ea13fb6379
1 changed files with 80 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
stepmania/src/GraphDisplay.cpp
+80 -3
View File
@@ -6,6 +6,7 @@
#include "ActorUtil.h"
#include "RageUtil.h"
#include "RageLog.h"
#include "RageMath.h"
#include "StageStats.h"
#include "Foreach.h"
#include "song.h"
@@ -14,7 +15,7 @@
//#define DIVIDE_LINE_WIDTH THEME->GetMetricI(m_sName,"TexturedBottomHalf")
REGISTER_ACTOR_CLASS( GraphDisplay )
enum { VALUE_RESOLUTION=200 };
enum { VALUE_RESOLUTION=100 };
class GraphLine: public Actor
{
public:
@@ -25,8 +26,17 @@ public:
m_LineStrip[i].c = RageColor( 1,1,1,1 );
m_LineStrip[i].t = RageVector2( 0,0 );
}
m_pCircles = NULL;
}
~GraphLine()
{
delete[] m_pCircles;
}
static const int iSubdivisions = 4;
static const int iCircleVertices = iSubdivisions+2;
void DrawPrimitives()
{
Actor::SetGlobalRenderStates(); // set Actor-specified render states
@@ -40,11 +50,76 @@ public:
for( int i = 0; i < ARRAYSIZE(m_LineStrip); ++i )
m_LineStrip[i].c = this->m_pTempState->diffuse[0];
// XXX: order: mask, sprite, line, others
DISPLAY->DrawLineStrip( m_LineStrip, ARRAYSIZE(m_LineStrip), 2 );
DISPLAY->DrawQuads( &m_Quads[0], m_Quads.size() );
for( int i = 0; i < VALUE_RESOLUTION; ++i )
DISPLAY->DrawFan( m_pCircles+iCircleVertices*i, iCircleVertices );
}
static void MakeCircle( const RageSpriteVertex &v, RageSpriteVertex *pVerts, int iSubdivisions, float fRadius )
{
pVerts[0] = v;
for( int i = 0; i < iSubdivisions+1; ++i )
{
const float fRotation = float(i) / iSubdivisions * 2*PI;
const float fX = RageFastCos(fRotation) * fRadius;
const float fY = -RageFastSin(fRotation) * fRadius;
pVerts[1+i] = v;
pVerts[1+i].p.x += fX;
pVerts[1+i].p.y += fY;
}
}
void Set()
{
delete[] m_pCircles;
m_pCircles = new RageSpriteVertex[VALUE_RESOLUTION * iCircleVertices];
for( int i = 0; i < VALUE_RESOLUTION; ++i )
{
MakeCircle( m_LineStrip[i], m_pCircles + iCircleVertices*i, iSubdivisions, 1 );
}
int iNumLines = VALUE_RESOLUTION-1;
m_Quads.resize( iNumLines * 4 );
for( int i = 0; i < iNumLines-1; ++i )
{
const RageSpriteVertex &p1 = m_LineStrip[i];
const RageSpriteVertex &p2 = m_LineStrip[i+1];
float opp = p2.p.x - p1.p.x;
float adj = p2.p.y - p1.p.y;
float hyp = powf(opp*opp + adj*adj, 0.5f);
float lsin = opp/hyp;
float lcos = adj/hyp;
RageSpriteVertex *v = &m_Quads[i*4];
v[0] = v[1] = p1;
v[2] = v[3] = p2;
int iLineWidth = 2;
float ydist = lsin * iLineWidth/2;
float xdist = lcos * iLineWidth/2;
v[0].p.x += xdist;
v[0].p.y -= ydist;
v[1].p.x -= xdist;
v[1].p.y += ydist;
v[2].p.x -= xdist;
v[2].p.y += ydist;
v[3].p.x += xdist;
v[3].p.y -= ydist;
}
}
RageSpriteVertex m_LineStrip[VALUE_RESOLUTION];
private:
vector<RageSpriteVertex> m_Quads;
RageSpriteVertex *m_pCircles;
};
class GraphBody: public Actor
@@ -203,6 +278,8 @@ void GraphDisplay::UpdateVerts()
m_pGraphLine->m_LineStrip[i].p = RageVector3( fX, fY, 0 );
}
m_pGraphLine->Set();
}
void GraphDisplay::Update( float fDeltaTime )