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Particle spawner: Move definitions to source

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Long functions were moved to the source file to keep the header
short to speed up compiling. This has no functional change.
This commit is contained in:
SmallJoker 2023-04-05 20:22:38 +02:00 committed by SmallJoker
parent 9c9309cdbb
commit f8e0778fc9
2 changed files with 136 additions and 97 deletions
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114
src/particles.cpp
View File

@ -19,8 +19,122 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "particles.h" #include "particles.h"
#include <type_traits> #include <type_traits>
using namespace ParticleParamTypes; using namespace ParticleParamTypes;
template<typename T>
void RangedParameter<T>::serialize(std::ostream &os) const
{
min.serialize(os);
max.serialize(os);
writeF32(os, bias);
}
template<typename T>
void RangedParameter<T>::deSerialize(std::istream &is)
{
min.deSerialize(is);
max.deSerialize(is);
bias = readF32(is);
}
template<typename T>
T RangedParameter<T>::pickWithin() const
{
typename T::pickFactors values;
auto p = numericAbsolute(bias) + 1;
for (size_t i = 0; i < sizeof(values) / sizeof(values[0]); ++i) {
if (bias < 0)
values[i] = 1.0f - pow(myrand_float(), p);
else
values[i] = pow(myrand_float(), p);
}
return T::pick(values, min, max);
}
template<typename T>
T TweenedParameter<T>::blend(float fac) const
{
// warp time coordinates in accordance w/ settings
if (fac > beginning) {
// remap for beginning offset
auto len = 1 - beginning;
fac -= beginning;
fac /= len;
// remap for repetitions
fac *= reps;
if (fac > 1) // poor man's modulo
fac -= (decltype(reps))fac;
// remap for style
switch (style) {
case TweenStyle::fwd: /* do nothing */ break;
case TweenStyle::rev: fac = 1.0f - fac; break;
case TweenStyle::pulse:
case TweenStyle::flicker: {
if (fac > 0.5f) {
fac = 1.f - (fac*2.f - 1.f);
} else {
fac = fac * 2;
}
if (style == TweenStyle::flicker) {
fac *= myrand_range(0.7f, 1.0f);
}
}
}
if (fac>1.f)
fac = 1.f;
else if (fac<0.f)
fac = 0.f;
} else {
fac = (style == TweenStyle::rev) ? 1.f : 0.f;
}
return start.interpolate(fac, end);
}
template<typename T>
void TweenedParameter<T>::serialize(std::ostream &os) const
{
writeU8(os, static_cast<u8>(style));
writeU16(os, reps);
writeF32(os, beginning);
start.serialize(os);
end.serialize(os);
}
template<typename T>
void TweenedParameter<T>::deSerialize(std::istream &is)
{
style = static_cast<TweenStyle>(readU8(is));
reps = readU16(is);
beginning = readF32(is);
start.deSerialize(is);
end.deSerialize(is);
}
namespace ParticleParamTypes {
// For function definitions
template struct RangedParameter<v3fParameter>;
template struct RangedParameter<f32Parameter>;
template struct TweenedParameter<v2fParameter>;
template struct TweenedParameter<v3fParameter>;
template struct TweenedParameter<f32Parameter>;
template struct TweenedParameter<v3fRange>;
template struct TweenedParameter<f32Range>;
}
// Linear interpolation
template <typename T>
static T numericalBlend(float fac, T min, T max)
{
return min + ((max - min) * fac);
}
#define PARAM_PVFN(n) ParticleParamTypes::n##ParameterValue #define PARAM_PVFN(n) ParticleParamTypes::n##ParameterValue
v2f PARAM_PVFN(pick) (float* f, const v2f a, const v2f b) { v2f PARAM_PVFN(pick) (float* f, const v2f a, const v2f b) {
return v2f( return v2f(

119
src/particles.h
View File

@ -49,6 +49,7 @@ namespace ParticleParamTypes
type interpolateParameterValue(float fac, const type a, const type b); \ type interpolateParameterValue(float fac, const type a, const type b); \
type pickParameterValue (float* facs, const type a, const type b); type pickParameterValue (float* facs, const type a, const type b);
// Function definition: see "particles.cpp"
DECL_PARAM_OVERLOADS(u8); DECL_PARAM_OVERLOADS(s8); DECL_PARAM_OVERLOADS(u8); DECL_PARAM_OVERLOADS(s8);
DECL_PARAM_OVERLOADS(u16); DECL_PARAM_OVERLOADS(s16); DECL_PARAM_OVERLOADS(u16); DECL_PARAM_OVERLOADS(s16);
DECL_PARAM_OVERLOADS(u32); DECL_PARAM_OVERLOADS(s32); DECL_PARAM_OVERLOADS(u32); DECL_PARAM_OVERLOADS(s32);
@ -83,8 +84,7 @@ namespace ParticleParamTypes
k = (E)v; k = (E)v;
} }
/* this is your brain on C++. */ // Describes a single value
template <typename T, size_t PN> template <typename T, size_t PN>
struct Parameter struct Parameter
{ {
@ -119,9 +119,8 @@ namespace ParticleParamTypes
}; };
template <typename T> T numericalBlend(float fac, T min, T max) // New struct required to differentiate between core::vectorNd-compatible
{ return min + ((max - min) * fac); } // structs for proper value dumping (debugging)
template <typename T, size_t N> template <typename T, size_t N>
struct VectorParameter : public Parameter<T,N> { struct VectorParameter : public Parameter<T,N> {
using This = VectorParameter<T,N>; using This = VectorParameter<T,N>;
@ -146,15 +145,12 @@ namespace ParticleParamTypes
return oss.str(); return oss.str();
} }
using u8Parameter = Parameter<u8, 1>; using s8Parameter = Parameter<s8, 1>;
using u16Parameter = Parameter<u16, 1>; using s16Parameter = Parameter<s16, 1>;
using u32Parameter = Parameter<u32, 1>; using s32Parameter = Parameter<s32, 1>;
using f32Parameter = Parameter<f32, 1>; using f32Parameter = Parameter<f32, 1>;
using v2fParameter = VectorParameter<v2f, 2>; using v2fParameter = VectorParameter<v2f, 2>;
using v3fParameter = VectorParameter<v3f, 3>; using v3fParameter = VectorParameter<v3f, 3>;
// Add more parameter types here if you need them ...
// Bound limits information based on "Parameter" types
template <typename T> template <typename T>
struct RangedParameter struct RangedParameter
{ {
@ -168,31 +164,20 @@ namespace ParticleParamTypes
RangedParameter(T _min, T _max) : min(_min), max(_max) {} RangedParameter(T _min, T _max) : min(_min), max(_max) {}
template <typename M> RangedParameter(M b) : min(b), max(b) {} template <typename M> RangedParameter(M b) : min(b), max(b) {}
// these functions handle the old range serialization "format"; bias must // Binary format must not be changed. Function is to be deprecated.
// be manually encoded in a separate part of the stream. NEVER ADD FIELDS void legacySerialize(std::ostream &os) const
// TO THESE FUNCTIONS
void legacySerialize(std::ostream& os) const
{ {
min.serialize(os); min.serialize(os);
max.serialize(os); max.serialize(os);
} }
void legacyDeSerialize(std::istream& is) void legacyDeSerialize(std::istream &is)
{ {
min.deSerialize(is); min.deSerialize(is);
max.deSerialize(is); max.deSerialize(is);
} }
// these functions handle the format used by new fields. new fields go here void serialize(std::ostream &os) const;
void serialize(std::ostream &os) const void deSerialize(std::istream &is);
{
legacySerialize(os);
writeF32(os, bias);
}
void deSerialize(std::istream &is)
{
legacyDeSerialize(is);
bias = readF32(is);
}
This interpolate(float fac, const This against) const This interpolate(float fac, const This against) const
{ {
@ -203,19 +188,8 @@ namespace ParticleParamTypes
return r; return r;
} }
T pickWithin() const // Pick a random value (e.g. position) within bounds
{ T pickWithin() const;
typename T::pickFactors values;
auto p = numericAbsolute(bias) + 1;
for (size_t i = 0; i < sizeof(values) / sizeof(values[0]); ++i) {
if (bias < 0)
values[i] = 1.0f - pow(myrand_float(), p);
else
values[i] = pow(myrand_float(), p);
}
return T::pick(values, min, max);
}
}; };
template <typename T> template <typename T>
@ -229,8 +203,10 @@ namespace ParticleParamTypes
return s.str(); return s.str();
} }
// Animation styles (fwd is normal, linear interpolation)
enum class TweenStyle : u8 { fwd, rev, pulse, flicker }; enum class TweenStyle : u8 { fwd, rev, pulse, flicker };
// "Tweened" pretty much means "animated" in this context
template <typename T> template <typename T>
struct TweenedParameter struct TweenedParameter
{ {
@ -238,72 +214,21 @@ namespace ParticleParamTypes
using This = TweenedParameter<T>; using This = TweenedParameter<T>;
TweenStyle style = TweenStyle::fwd; TweenStyle style = TweenStyle::fwd;
u16 reps = 1; u16 reps = 1; // Blending repetitions (same pattern)
f32 beginning = 0.0f; f32 beginning = 0.0f; // Blending start offset
T start, end; T start, end;
TweenedParameter() = default; TweenedParameter() = default;
TweenedParameter(T _start, T _end) : start(_start), end(_end) {} TweenedParameter(T _start, T _end) : start(_start), end(_end) {}
// For initializer lists and assignment
template <typename M> TweenedParameter(M b) : start(b), end(b) {} template <typename M> TweenedParameter(M b) : start(b), end(b) {}
T blend(float fac) const // Blend (or animate) the current value
{ T blend(float fac) const;
// warp time coordinates in accordance w/ settings
if (fac > beginning) {
// remap for beginning offset
auto len = 1 - beginning;
fac -= beginning;
fac /= len;
// remap for repetitions void serialize(std::ostream &os) const;
fac *= reps; void deSerialize(std::istream &is);
if (fac > 1) // poor man's modulo
fac -= (decltype(reps))fac;
// remap for style
switch (style) {
case TweenStyle::fwd: /* do nothing */ break;
case TweenStyle::rev: fac = 1.0f - fac; break;
case TweenStyle::pulse:
case TweenStyle::flicker: {
if (fac > 0.5f) {
fac = 1.f - (fac*2.f - 1.f);
} else {
fac = fac * 2;
}
if (style == TweenStyle::flicker) {
fac *= myrand_range(0.7f, 1.0f);
}
}
}
if (fac>1.f)
fac = 1.f;
else if (fac<0.f)
fac = 0.f;
} else {
fac = (style == TweenStyle::rev) ? 1.f : 0.f;
}
return start.interpolate(fac, end);
}
void serialize(std::ostream &os) const
{
writeU8(os, static_cast<u8>(style));
writeU16(os, reps);
writeF32(os, beginning);
start.serialize(os);
end.serialize(os);
}
void deSerialize(std::istream &is)
{
style = static_cast<TweenStyle>(readU8(is));
reps = readU16(is);
beginning = readF32(is);
start.deSerialize(is);
end.deSerialize(is);
}
}; };
template <typename T> template <typename T>