PreacherDHM/Nomi
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

added rotation matrix to the bizear curves

Browse Source
This commit is contained in:
PreacherDHM
2025-11-03 16:52:39 -08:00
parent 2daecbf7c0
commit 51c2ff25e6
3 changed files with 78 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

78
source/nomi.c
View File

@@ -5,6 +5,7 @@
#define SPIREL_MOD 0.618055f
struct nomiSpirel {
struct tart_cell selected_cell;
struct tart_cell unselected_cell;
@@ -42,6 +43,31 @@ void CreaetBranch(trunk* trunk);
* */
branch* LocateBranch();
float a = -3;
nomi_vec2 RotatePoint(nomi_vec2 or,nomi_vec2 t, nomi_vec2 d) {
nomi_vec2 pos;
//float a = atan2(d.y, d.x) - 3.14f/2;
a+= 0.001f;
pos.x = (t.x * cos(a) - t.y * sin(a));
pos.y = (t.x * sin(a) + t.y * cos(a))/2;
return pos;
}
nomi_curve RotateCurve(nomi_curve og, nomi_vec2 d) {
nomi_curve c;
c.start = og.start; // start is the origin so there is no need to rotate
c.start = RotatePoint(og.start, og.start, d); // this point
c.c0 = RotatePoint(og.start,og.c0,d);
c.c1 = RotatePoint(og.start,og.c1,d);
c.end = RotatePoint(og.start,og.end,d);
return c;
}
/*
* Draw Branch
*/
@@ -49,22 +75,26 @@ void DrawBranch(branch* branch, struct tart_window* w, tart_byte b) {
struct tart_cell cell = NULL_CELL;
cell.display = '*';
struct nomiSpirel spirel;
nomi_curve c;
int SizeOfFile = 600;
char cellChart[] = {'%','*','\\','/','l','&','7','+','=','^',':'};
unsigned int iderations = 0;
struct tart_vec2 pos0 = {
(( 3) * -1)+branch->startPos.x,
(( 0/2) * -1)+branch->startPos.y};
struct tart_vec2 c0 = {
(( 25) * -1)+branch->startPos.x,
((35/2) * -1)+branch->startPos.y}; // controle point 0
struct tart_vec2 c1 = {
(( -10) * -1)+branch->startPos.x,
((35/2) * -1)+branch->startPos.y}; // controle point 1
struct tart_vec2 pos1 = {
(( 3) * -1)+branch->startPos.x,
((10/2) * -1)+branch->startPos.y};
if(branch->curve.start.x == 0) {
branch->curve.start = (nomi_vec2){
0,
0};
branch->curve.c0 = (nomi_vec2){
(( 25) * -1),
((35/2.f) * -1)}; // controle point 0
branch->curve.c1 = (nomi_vec2){
(( -10) * -1),
((35/2.f) * -1)}; // controle point 1
branch->curve.end = (nomi_vec2){
(( 3) * -1),
((20/2.f) * -1)};
c = RotateCurve(branch->curve, (nomi_vec2){0,0});
}
struct tart_vec2 dpos = {0,0};
float count = 0;
@@ -78,21 +108,25 @@ void DrawBranch(branch* branch, struct tart_window* w, tart_byte b) {
// 3 = right
iderations++;
cell.display = cellChart[rand_r(&iderations)%11];
dpos = (struct tart_vec2){
(1-count)*((1-count)*((1-count)*pos0.x + count * c0.x) +
count * ((1-count)*c0.x + count*c1.x)) +
count * ((1-count)*((1-count)*c0.x + count * c1.x) +
count * ((1-count)*c1.x + pos1.x)),
(1-count)*((1-count)*((1-count)*pos0.y + count * c0.y) + count *
((1-count)*c0.y + count*c1.y)) +
count *((1-count)*((1-count)*c0.y + count * c1.y) +
count * ((1-count)*c1.y + pos1.y)),
(1-count)*((1-count)*((1-count)*c.start.x + count * c.c0.x) +
count * ((1-count)*c.c0.x + count*c.c1.x)) +
count * ((1-count)*((1-count)*c.c0.x + count * c.c1.x) +
count * ((1-count)*c.c1.x + c.end.x)),
(1-count)*((1-count)*((1-count)*c.start.y + count * c.c0.y) + count *
((1-count)*c.c0.y + count*c.c1.y)) +
count *((1-count)*((1-count)*c.c0.y + count * c.c1.y) +
count * ((1-count)*c.c1.y + c.end.y)),
};
tart_draw_cell_position(tart_get_buffer(w, b), cell, dpos);
dpos.x += branch->startPos.x;
dpos.y += branch->startPos.y;
if(dpos.x >= 0 && dpos.y >=0) {
tart_draw_cell_position(tart_get_buffer(w, b), cell, dpos);
}