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Code Issues Releases Wiki Activity

QuadGrid now working

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This commit is contained in:
fgenesis 2022-05-14 05:14:08 +02:00
parent fa35ee41bd
commit e1f78aaca7
3 changed files with 38 additions and 26 deletions
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6
Aquaria/ScriptInterface.cpp
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@ -9632,7 +9632,11 @@ luaFunc(quadgrid_resetUV)
{
QuadGrid *q = getQuadGrid(L);
if(q)
q->resetUV();
{
const float xmul = luaL_optnumber(L, 2, 1);
const float ymul = luaL_optnumber(L, 3, 1);
q->resetUV(xmul, ymul);
}
luaReturnNil();
}

48
BBGE/QuadGrid.cpp
View file

@ -4,7 +4,7 @@
#include "Core.h"
QuadGrid::QuadGrid(size_t w, size_t h)
: pauseLevel(0), _w(w), _h(h)
: pauseLevel(0), _w(w+1), _h(h+1)
{
addType(SCO_QUAD_GRID);
_points.resize((w+1) * (h+1));
@ -12,6 +12,8 @@ QuadGrid::QuadGrid(size_t w, size_t h)
resetPos(1, 1);
this->width = 2;
this->height = 2;
this->cull = false;
this->repeatTexture = true;
}
QuadGrid* QuadGrid::New(size_t w, size_t h)
@ -25,39 +27,43 @@ QuadGrid::~QuadGrid()
void QuadGrid::resetUV(float xmul, float ymul)
{
const float incX = 1.0f / float(_w + 1);
const float incY = 1.0f / float(_h + 1);
const float incX = xmul / float(quadsX());
const float incY = ymul / float(quadsY());
const size_t NX = pointsX();
float u0 = 0, u1 = incX, v0 = 0, v1 = incY;
float v = 0;
// go over points, so <= to compare boundaries
for(size_t y = 0; y <= _h; ++y, v0 = v1, v1 += incY)
// go over points
for(size_t y = 0; y < _h; ++y)
{
Point *row = &_points[y * _w];
for(size_t x = 0; x <= _w; ++x, u0 = u1, u1 += incX)
Point *row = &_points[y * NX];
float u = 0;
for(size_t x = 0; x < NX; ++x)
{
row[x].u = u0;
row[y].v = v0;
row[x].u = u;
row[x].v = v;
u += incX;
}
v += incY;
}
}
void QuadGrid::resetPos(float w, float h, float xoffs, float yoffs)
{
const float dx = 1.0f / w;
const float dy = 1.0f / h;
const size_t NX = _w + 1;
const float dx = w / float(quadsX());
const float dy = h / float(quadsY());
const size_t NX = pointsX();
float yy = yoffs;
// go over points, so <= to compare boundaries
for(size_t y = 0; y <= _h; ++y, yy += dy)
// go over points
for(size_t y = 0; y < _h; ++y, yy += dy)
{
Point * const row = &_points[y * NX];
float xx = xoffs;
for(size_t x = 0; x < NX; ++x, xx += dx)
{
row[x].x = xx;
row[y].y = yy;
row[x].y = yy;
}
}
}
@ -75,14 +81,16 @@ void QuadGrid::onRender()
const float ox = texOffset.x;
const float oy = texOffset.y;
const size_t NX = _w + 1;
const size_t NX = pointsX();
// go over grids, so < to compare boundaries
for(size_t y = 0; y < _h; ++y)
// go over grids
const size_t W = quadsX();
const size_t H = quadsY();
for(size_t y = 0; y < H; ++y)
{
Point * const row0 = &_points[y * NX];
Point * const row1 = row0 + NX;
for(size_t x = 0; x < _w; ++x)
for(size_t x = 0; x < W; ++x)
{
glBegin(GL_QUADS);
drawOnePoint(row0[x], ox, oy);

10
BBGE/QuadGrid.h
View file

@ -49,11 +49,11 @@ public:
void resetUV(float xmul = 1, float ymul = 1);
void resetPos(float w, float h, float xoffs = 0, float yoffs = 0);
inline size_t quadsX() const { return _w; }
inline size_t quadsY() const { return _h; }
inline size_t quadsX() const { return _w - 1; }
inline size_t quadsY() const { return _h - 1; }
inline size_t pointsX() const { return _w + 1; }
inline size_t pointsY() const { return _h + 1; }
inline size_t pointsX() const { return _w; }
inline size_t pointsY() const { return _h; }
public:
@ -63,7 +63,7 @@ public:
private:
QuadGrid(size_t w, size_t h);
const size_t _w, _h; // number of quads in each direction (2x3 quads => 3x4 grid points)
const size_t _w, _h; // number of points in each direction (2x3 quads => 3x4 grid points)
std::vector<Point> _points;
};