/*! Inverse Operation of \c cirf_getSub(). */
inline void
getRel(const box& a, const cirf& b, cirf& ba)
{
vec2f ad; box_rdDim(a, &ad);
vec2f_set(&ba.c, (b.c(0) - a.l(0)) / ad(0), (b.c(1) - a.l(1)) / ad(1));
ba.r() = b.r() / mean(ad(0), ad(1));
if (ad(0) != ad(1)) {
PTODO("ad(0) != ad(1) => may result in an ellipse\n");
}
}
/*! Sub-Circle when \p ba is viewed relative to \p a.
* The inverse operation of \c cirf_getRel().
*/
inline void
getSub(const box& a, const cirf& ba, cirf& b)
{
vec2f ad; box_rdDim(a, &ad);
vec2f_set(&b.c, a.l(0) + ad(0) * ba.c(0), a.l(1) + ad(1) * ba.c(1));
b.r() = ba.r() * mean(ad(0), ad(1));
if (ad(0) != ad(1)) {
PTODO("ad(0) != ad(1) => may result in an ellipse\n");
}
}
Sprite::Sprite(vec2f pos, vec2f dim, const char* textureName)
: Renderable(RENDER_MODE_TRIANGLES, SHADER_ATTRIBFLAG_POS | SHADER_ATTRIBFLAG_COL | SHADER_ATTRIBFLAG_TEX)
{
vec2f_copy(this->dim, dim);
vec2f_copy(this->pos, pos);
vec2f_set(scale, 1.f, 1.f);
rotation = 0.f;
texture = Texture::loadTexture(textureName);
texture->upload();
currentShader = Renderer::getInstance()->texture;
allocate(6);
vertpos(-dim[X] / 2.f, -dim[Y] / 2.f);
vertcol(1.f, 1.f, 1.f, 1.f);
verttex(0.f, 0.f);
vertpos(-dim[X] / 2.f, dim[Y] / 2.f);
vertcol(1.f, 1.f, 1.f, 1.f);
verttex(0.f, 1.f);
vertpos(dim[X] / 2.f, dim[Y] / 2.f);
vertcol(1.f, 1.f, 1.f, 1.f);
verttex(1.f, 1.f);
vertpos(-dim[X] / 2.f, -dim[Y] / 2.f);
vertcol(1.f, 1.f, 1.f, 1.f);
verttex(0.f, 0.f);
vertpos(dim[X] / 2.f, dim[Y] / 2.f);
vertcol(1.f, 1.f, 1.f, 1.f);
verttex(1.f, 1.f);
vertpos(dim[X] / 2.f, -dim[Y] / 2.f);
vertcol(1.f, 1.f, 1.f, 1.f);
verttex(1.f, 0.f);
upload();
}
Tile::Tile(bool collision, float u_topleft, float v_topleft, float u_botright, float v_botright)
: collision {collision}
{
vec2f_set(uv_topleft, u_topleft, v_topleft);
vec2f_set(uv_botright, u_botright, v_botright);
}
