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Code Issues Releases Wiki Activity

some work on quadgrid, still untested

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This commit is contained in:
fgenesis 2022-05-13 17:13:27 +02:00
parent ad36f6cf99
commit fa35ee41bd
3 changed files with 54 additions and 4 deletions
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38
BBGE/QuadGrid.cpp
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@ -9,6 +9,9 @@ QuadGrid::QuadGrid(size_t w, size_t h)
addType(SCO_QUAD_GRID);
_points.resize((w+1) * (h+1));
resetUV();
resetPos(1, 1);
this->width = 2;
this->height = 2;
}
QuadGrid* QuadGrid::New(size_t w, size_t h)
@ -39,6 +42,26 @@ void QuadGrid::resetUV(float xmul, float ymul)
}
}
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;
float yy = yoffs;
// go over points, so <= to compare boundaries
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;
}
}
}
static inline void drawOnePoint(const QuadGrid::Point& p, float ox, float oy)
{
glTexCoord2f(p.u + ox, p.v + oy);
@ -48,12 +71,10 @@ static inline void drawOnePoint(const QuadGrid::Point& p, float ox, float oy)
void QuadGrid::onRender()
{
glBindTexture(GL_TEXTURE_2D, texture->textures[0]);
glColor4f(color.x, color.y, color.z, alpha.x * alphaMod);
const float ox = texOffset.x;
const float oy = texOffset.y;
const size_t NX = _w + 1;
// go over grids, so < to compare boundaries
@ -83,3 +104,16 @@ void QuadGrid::onUpdate(float dt)
RenderObject::onUpdate(dt);
}
void QuadGrid::onSetTexture() // same as Quad::setTexture()
{
if (texture)
{
width = this->texture->width;
height = this->texture->height;
}
else
{
width = 64;
height = 64;
}
}