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more fanciness for hopalong

This commit is contained in:
aap 2021-11-26 17:20:17 +01:00
parent 50c8f9ec7f
commit ac99c20d0c
1 changed files with 23 additions and 2 deletions
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25
tools/hopalong/main.cpp
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@ -116,7 +116,11 @@ int curOrbit = 0;
float A = 0.0f; float A = 0.0f;
float B = 0.0f; float B = 0.0f;
float C = 0.0f; float C = 0.0f;
float D = 0.0f;
float E = 0.0f;
float Exp = 0.25f;
float Scale = 50.0f; float Scale = 50.0f;
int type;
bool textured = true; bool textured = true;
bool animateX; bool animateX;
bool animateY; bool animateY;
@ -153,9 +157,20 @@ RenderOrbit(Orbit *o)
rw::SetRenderStatePtr(rw::TEXTURERASTER, nil); rw::SetRenderStatePtr(rw::TEXTURERASTER, nil);
BeginIm2D(rw::PRIMTYPETRILIST); BeginIm2D(rw::PRIMTYPETRILIST);
while(n--){ while(n--){
x1 = y0 - sgn(x0)*sqrtf(fabs(B*x0 - C)); switch(type){
// x1 = y0 - sgn(x0)*logf(fabs(B*x0 - C)); case 0:
default:
x1 = y0 - sgn(x0)*(D + sqrtf(fabs(B*x0 - C)));
break;
case 1:
x1 = y0 - sgn(x0)*(D + powf(fabs(B*x0 - C), Exp));
break;
case 2:
x1 = y0 - sgn(x0)*(D + logf(2.0f + sqrtf(fabs(B*x0 - C))));
break;
}
y1 = A - x0; y1 = A - x0;
x1 += E;
RenderParticle(x1*Scale, y1*Scale, o->PointSz, color); RenderParticle(x1*Scale, y1*Scale, o->PointSz, color);
x0 = x1; x0 = x1;
y0 = y1; y0 = y1;
@ -278,6 +293,12 @@ hopalongGUI(void)
ImGui::SliderFloat("A", &A, -10.0f, 10.0f); ImGui::SliderFloat("A", &A, -10.0f, 10.0f);
ImGui::SliderFloat("B", &B, -10.0f, 10.0f); ImGui::SliderFloat("B", &B, -10.0f, 10.0f);
ImGui::SliderFloat("C", &C, -10.0f, 10.0f); ImGui::SliderFloat("C", &C, -10.0f, 10.0f);
ImGui::SliderFloat("D", &D, -10.0f, 10.0f);
ImGui::SliderFloat("E", &E, -10.0f, 10.0f);
ImGui::SliderFloat("exp", &Exp, 0.001f, 4.0f);
ImGui::RadioButton("sqrt", &type, 0);
ImGui::RadioButton("^exp", &type, 1);
ImGui::RadioButton("log", &type, 2);
ImGui::SliderFloat("Scale", &Scale, 1.0f, 100.0f); ImGui::SliderFloat("Scale", &Scale, 1.0f, 100.0f);
for(i = 0; i < nelem(orbits); i++){ for(i = 0; i < nelem(orbits); i++){
if(orbits[i].used){ if(orbits[i].used){