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#include <iostream>
#include <ncurses.h>
#include <cmath>
#include "chfb.h"
#include "obj3d.h"
#include "math_vector.h"
#include "vertex.h"
#include "vertex_data.h"
#include "tri_vertex.h"
#define MKEY_Z 122
#define MKEY_Q 113
#define MKEY_S 115
#define MKEY_D 100
#define MKEY_ESC 27
#define FPS 60
#define PI 3.1415926535f
int main() {
// init
setlocale(LC_ALL, "");
initscr();
cbreak();
noecho();
intrflush(stdscr, FALSE);
keypad(stdscr, TRUE);
set_escdelay(0);
curs_set(0);
int w, h;
getmaxyx(stdscr, h, w);
CharacterFrameBuffer cfb{static_cast<unsigned int>(w), static_cast<unsigned int>(h)};
MathVector3 a{0.f, 0.f, 0.f};
float dist = 4.f;
while (1) {
//timeout(1000 / FPS);
timeout(10);
int c = getch();
if (c == MKEY_ESC) break;
switch (c) {
case KEY_UP:
// a.x += 0.1f;
dist += .1f;
break;
case KEY_DOWN:
// a.x -= 0.1f;
dist -= .1f;
break;
case KEY_LEFT:
// a.y += 0.1f;
break;
case KEY_RIGHT:
// a.y -= 0.1f;
break;
case MKEY_Q:
// a.z += 0.1f;
break;
case MKEY_D:
// a.z -= 0.1f;
break;
}
a.x += .0050f;
a.y += .0065f;
a.z += .0080f;
getmaxyx(stdscr, h, w);
cfb.resize(static_cast<unsigned int>(w), static_cast<unsigned int>(h));
float rad = 5.f;
MathVector3 ca{std::cos(a.x), std::cos(a.y), std::cos(a.z)};
MathVector3 sa{std::sin(a.x), std::sin(a.y), std::sin(a.z)};
std::array<MathVector3, 3> rot_x = {{
{ 1.f, 0.f, 0.f },
{ 0.f, ca.x, sa.x },
{ 0.f, -sa.x, ca.x },
}};
std::array<MathVector3, 3> rot_y = {{
{ ca.y, 0.f, -sa.y },
{ 0.f, 1.f, 0.f },
{ sa.y, 0.f, ca.y },
}};
std::array<MathVector3, 3> rot_z = {{
{ ca.z, sa.z, 0.f },
{ -sa.z, ca.z, 0.f },
{ 0.f, 0.f, 1.f },
}};
auto [e_x, e_y, e_z] = rot_x;
e_x = e_x.x * rot_y[0] + e_x.y * rot_y[1] + e_x.z * rot_y[2];
e_y = e_y.x * rot_y[0] + e_y.y * rot_y[1] + e_y.z * rot_y[2];
e_z = e_z.x * rot_y[0] + e_z.y * rot_y[1] + e_z.z * rot_y[2];
e_x = e_x.x * rot_z[0] + e_x.y * rot_z[1] + e_x.z * rot_z[2];
e_y = e_y.x * rot_z[0] + e_y.y * rot_z[1] + e_y.z * rot_z[2];
e_z = e_z.x * rot_z[0] + e_z.y * rot_z[1] + e_z.z * rot_z[2];
std::array<Object3D, 2> objs{{
{
{
{
rad * (-e_x + -e_y + -e_z - .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (+e_x + -e_y + -e_z - .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (-e_x + +e_y + -e_z - .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (+e_x + +e_y + -e_z - .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (-e_x + -e_y + +e_z - .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (+e_x + -e_y + +e_z - .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (-e_x + +e_y + +e_z - .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (+e_x + +e_y + +e_z - .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
}
},
{
// face 1
{ 0, 2, 3 },
{ 0, 3, 1 },
// face 2
{ 0, 4, 6 },
{ 0, 6, 2 },
// face 3
{ 0, 1, 5 },
{ 0, 5, 4 },
// face 4
{ 7, 6, 4 },
{ 7, 4, 5 },
// face 5
{ 7, 3, 2 },
{ 7, 2, 6 },
// face 6
{ 7, 5, 1 },
{ 7, 1, 3 },
}
},
{
{
{
rad * (-e_x + -e_y + -e_z + .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (+e_x + -e_y + -e_z + .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (-e_x + +e_y + -e_z + .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (+e_x + +e_y + -e_z + .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (-e_x + -e_y + +e_z + .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (+e_x + -e_y + +e_z + .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (-e_x + +e_y + +e_z + .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
},
{
rad * (+e_x + +e_y + +e_z + .5f * (e_x + e_y + e_z)) - dist * rad * MathVector3{0.f, 0.f, 1.f},
{}
}
},
{
// face 1
{ 0, 2, 3 },
{ 0, 3, 1 },
// face 2
{ 0, 4, 6 },
{ 0, 6, 2 },
// face 3
{ 0, 1, 5 },
{ 0, 5, 4 },
// face 4
{ 7, 6, 4 },
{ 7, 4, 5 },
// face 5
{ 7, 3, 2 },
{ 7, 2, 6 },
// face 6
{ 7, 5, 1 },
{ 7, 1, 3 },
}
}
}};
cfb.clear();
float min_z = 2.f, max_z = 50.f;
float fac_for_aspect_ratio = 2.f * static_cast<float>(cfb.height()) / static_cast<float>(cfb.width());
for (auto obj : objs) {
for (auto triangle : obj) {
TriangleVertex4 t{triangle};
// should be multiplied by a matrix, temporary replacement
t.vertex1.point.x *= fac_for_aspect_ratio;
t.vertex1.point.y = -t.vertex1.point.y;
t.vertex1.point.w = -t.vertex1.point.z;
t.vertex1.point.z = 2.f * (-t.vertex1.point.z - min_z) / (max_z - min_z) - 1.f;
t.vertex2.point.x *= fac_for_aspect_ratio;
t.vertex2.point.y = -t.vertex2.point.y;
t.vertex2.point.w = -t.vertex2.point.z;
t.vertex2.point.z = 2.f * (-t.vertex2.point.z - min_z) / (max_z - min_z) - 1.f;
t.vertex3.point.x *= fac_for_aspect_ratio;
t.vertex3.point.y = -t.vertex3.point.y;
t.vertex3.point.w = -t.vertex3.point.z;
t.vertex3.point.z = 2.f * (-t.vertex3.point.z - min_z) / (max_z - min_z) - 1.f;
cfb.draw_triangle(t);
}
}
mvaddnstr(0, 0, cfb.chars(), cfb.width() * cfb.height());
}
// terminate
endwin();
return EXIT_SUCCESS;
}
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