mirror of
https://git.shylie.info/shylie/glerminal.git
synced 2024-09-19 13:38:19 +00:00
79 lines
1.3 KiB
C++
79 lines
1.3 KiB
C++
#include <glerminal.h>
|
|
|
|
#include <cstdlib>
|
|
#include <cmath>
|
|
|
|
namespace
|
|
{
|
|
void init()
|
|
{
|
|
for (int i = 1; i < 256; i++)
|
|
{
|
|
constexpr unsigned char c = 16;
|
|
const unsigned char v = (255 - c) * powf((i - 1) / 256.0f, 4.0f) + c;
|
|
const unsigned int j = (0xFF << 24) | (v << 16) | (v << 8) | v;
|
|
glerminal_update_sprite(i,
|
|
{
|
|
j,j,j,j,j,j,j,j,
|
|
j,j,j,j,j,j,j,j,
|
|
j,j,j,j,j,j,j,j,
|
|
j,j,j,j,j,j,j,j,
|
|
j,j,j,j,j,j,j,j,
|
|
j,j,j,j,j,j,j,j,
|
|
j,j,j,j,j,j,j,j,
|
|
j,j,j,j,j,j,j,j,
|
|
});
|
|
}
|
|
|
|
for (int i = 0; i < 40; i++)
|
|
{
|
|
for (int j = 0; j < 25; j++)
|
|
{
|
|
const int c = rand() % 224 + 32;
|
|
for (int k = 0; k < c; k++)
|
|
{
|
|
glerminal_set(i, j, k, k);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void mainloop(float dt)
|
|
{
|
|
static float time = 1;
|
|
|
|
time += dt;
|
|
|
|
if (time < 1.0f)
|
|
{
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
time = 0;
|
|
}
|
|
|
|
const int cx = rand() % 40;
|
|
const int cy = rand() % 25;
|
|
|
|
for (int i = 0; i < 40; i++)
|
|
{
|
|
for (int j = 0; j < 25; j++)
|
|
{
|
|
for (int k = 0; k < 256; k++)
|
|
{
|
|
const float ox = 0.025f * powf(k, 0.8f) * (i - cx);
|
|
const float oy = 0.025f * powf(k, 0.8f) * (j - cy);
|
|
glerminal_offset(i, j, k, ox, oy);
|
|
}
|
|
}
|
|
}
|
|
|
|
glerminal_flush();
|
|
}
|
|
}
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
glerminal_run(init, mainloop);
|
|
} |