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-rw-r--r--src/event.c38
-rw-r--r--src/fractals/julia.c41
-rw-r--r--src/fractals/mandelbrot.c7
-rw-r--r--src/helper.c22
-rw-r--r--src/main.c7
-rw-r--r--src/render.c37
-rw-r--r--src/state.c43
7 files changed, 128 insertions, 67 deletions
diff --git a/src/event.c b/src/event.c
index 3f878f8..30b5c34 100644
--- a/src/event.c
+++ b/src/event.c
@@ -6,14 +6,14 @@
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/24 09:52:35 by cacharle #+# #+# */
-/* Updated: 2020/02/24 14:08:20 by cacharle ### ########.fr */
+/* Updated: 2020/02/24 15:38:06 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
#include "fractol.h"
-#define MOVE_SPEED 0.2
-#define ZOOM_SPEED 1.1
+#define MOVE_SPEED 0.1
+#define ZOOM_SPEED 1.2
int event_quit(t_state *state)
{
@@ -23,7 +23,7 @@ int event_quit(t_state *state)
int event_keydown(int key, t_state *state)
{
- printf("%d\n", key);
+ /* printf("%d\n", key); */
if (key == MLXK_ESC)
state->running = false;
else if (key == MLXK_UP)
@@ -36,7 +36,7 @@ int event_keydown(int key, t_state *state)
state->center.r += state->plane.r * MOVE_SPEED;
else
return (0);
- render_update_window_complex(state);
+ state->updated = false;
return (0);
}
@@ -45,21 +45,41 @@ int event_mouse(int button, int x, int y, t_state *state)
(void)x;
(void)y;
- /* printf("%d\n", button); */
- /* printf("%d\n", x); */
- /* printf("%d\n", y); */
if (button == MLX_MOUSE_SCROLL_UP)
{
state->plane.r /= ZOOM_SPEED;
state->plane.i /= ZOOM_SPEED;
+ /* state->center.r += MOVE_SPEED * (double)(x - WINDOW_WIDTH / 2) / WINDOW_WIDTH; */
+ /* state->center.i += MOVE_SPEED * (double)(y - WINDOW_HEIGHT / 2) / WINDOW_HEIGHT; */
+
}
else if (button == MLX_MOUSE_SCROLL_DOWN)
{
state->plane.r *= ZOOM_SPEED;
state->plane.i *= ZOOM_SPEED;
+ /* state->center.r -= MOVE_SPEED * (double)(x - WINDOW_WIDTH / 2) / WINDOW_WIDTH; */
+ /* state->center.i -= MOVE_SPEED * (double)(y - WINDOW_HEIGHT / 2) / WINDOW_HEIGHT; */
}
else
return (0);
- render_update_window_complex(state);
+ state->updated = false;
+ return (0);
+}
+
+int event_mouse_motion(int x, int y, t_state *state)
+{
+ if (state->julia_const.r == NAN)
+ return (0);
+ if (x < 0)
+ x = 0;
+ if (x > WINDOW_WIDTH - 1)
+ x = WINDOW_WIDTH - 1;
+ if (y < 0)
+ y = 0;
+ if (y > WINDOW_HEIGHT - 1)
+ y = WINDOW_HEIGHT - 1;
+ state->julia_const.r = ((double)x / (double)WINDOW_WIDTH) * 4.0 - 2.0;
+ state->julia_const.i = ((double)y / (double)WINDOW_HEIGHT) * 4.0 - 2.0;
+ state->updated = false;
return (0);
}
diff --git a/src/fractals/julia.c b/src/fractals/julia.c
index e69de29..d1afb46 100644
--- a/src/fractals/julia.c
+++ b/src/fractals/julia.c
@@ -0,0 +1,41 @@
+/* ************************************************************************** */
+/* */
+/* ::: :::::::: */
+/* julia.c :+: :+: :+: */
+/* +:+ +:+ +:+ */
+/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
+/* +#+#+#+#+#+ +#+ */
+/* Created: 2020/02/24 15:17:38 by cacharle #+# #+# */
+/* Updated: 2020/02/24 15:36:04 by cacharle ### ########.fr */
+/* */
+/* ************************************************************************** */
+
+#include "fractol.h"
+
+#define JULIA_MAX_ITERATION 20
+#define JULIA_ESCAPE_RADIUS_SQUARED 100
+
+int julia(t_state *state, t_complex z)
+{
+ int n;
+ double zr;
+ double zi;
+ double zr_square;
+ double zi_square;
+
+ zr = z.r;
+ zi = z.i;
+ n = -1;
+ while (++n < JULIA_MAX_ITERATION)
+ {
+ zi_square = zi * zi;
+ zr_square = zr * zr;
+ if (zr_square + zi_square > JULIA_ESCAPE_RADIUS_SQUARED)
+ break;
+ zi = 2.0 * zr * zi;
+ zr = zr_square - zi_square;
+ zi += state->julia_const.i;
+ zr += state->julia_const.r;
+ }
+ return (n);
+}
diff --git a/src/fractals/mandelbrot.c b/src/fractals/mandelbrot.c
index 4211cfa..5283fb5 100644
--- a/src/fractals/mandelbrot.c
+++ b/src/fractals/mandelbrot.c
@@ -6,7 +6,7 @@
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/24 11:07:41 by cacharle #+# #+# */
-/* Updated: 2020/02/24 13:46:22 by cacharle ### ########.fr */
+/* Updated: 2020/02/24 15:25:17 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
@@ -15,7 +15,7 @@
#define MANDEL_MAX_ITERATION 20
#define MANDEL_ESCAPE_RADIUS_SQUARED 100
-int mandelbrot(t_complex z)
+int mandelbrot(t_state *state, t_complex z)
{
int n;
double zr;
@@ -23,6 +23,7 @@ int mandelbrot(t_complex z)
double zr_square;
double zi_square;
+ (void)state;
zr = z.r;
zi = z.i;
n = -1;
@@ -31,7 +32,7 @@ int mandelbrot(t_complex z)
zi_square = zi * zi;
zr_square = zr * zr;
if (zr_square + zi_square > MANDEL_ESCAPE_RADIUS_SQUARED)
- return (n);
+ break;
zi = 2.0 * zr * zi;
zr = zr_square - zi_square;
zi += z.i;
diff --git a/src/helper.c b/src/helper.c
index f3b040b..8f03bed 100644
--- a/src/helper.c
+++ b/src/helper.c
@@ -6,19 +6,19 @@
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/24 11:54:57 by cacharle #+# #+# */
-/* Updated: 2020/02/24 12:17:08 by cacharle ### ########.fr */
+/* Updated: 2020/02/24 14:14:43 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
#include "fractol.h"
-void h_offset_to_complex(t_state *state, t_complex *z, int offset)
-{
- int y; // unoptimized
- int x;
-
- y = offset / state->window.width;
- x = offset % state->window.width;
- z->a = y / state->window.height * state->plane.a;
- z->b = x / state->window.width * state->plane.b;
-}
+/* void h_offset_to_complex(t_state *state, t_complex *z, int offset) */
+/* { */
+/* int y; // unoptimized */
+/* int x; */
+/* */
+/* y = offset / state->window.width; */
+/* x = offset % state->window.width; */
+/* z->a = y / state->window.height * state->plane.a; */
+/* z->b = x / state->window.width * state->plane.b; */
+/* } */
diff --git a/src/main.c b/src/main.c
index 944d5aa..9bda98b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,7 +6,7 @@
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/24 09:27:44 by cacharle #+# #+# */
-/* Updated: 2020/02/24 13:55:02 by cacharle ### ########.fr */
+/* Updated: 2020/02/24 15:28:40 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
@@ -16,15 +16,14 @@ int main(int argc, char **argv)
{
t_state state;
- if (argc != 2)
+ if (argc != 2 || state_init(&state, argv[1]) < 0)
{
ft_putstr("mandelbrot\njulia\n");
return (0);
}
- if (state_init(&state, argv[1]) < 0)
- return (1);
mlx_hook(state.window_ptr, 17, 0, event_quit, (void*)&state);
mlx_hook(state.window_ptr, 2, 2, event_keydown, (void*)&state);
+ mlx_hook(state.window_ptr, 6, 64, event_mouse_motion, (void*)&state);
mlx_mouse_hook(state.window_ptr, event_mouse, (void*)&state);
mlx_loop_hook(state.mlx_ptr, render_update, (void*)&state);
mlx_loop(state.mlx_ptr);
diff --git a/src/render.c b/src/render.c
index f4f3fed..1b93c3a 100644
--- a/src/render.c
+++ b/src/render.c
@@ -6,7 +6,7 @@
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/24 09:54:59 by cacharle #+# #+# */
-/* Updated: 2020/02/24 14:01:43 by cacharle ### ########.fr */
+/* Updated: 2020/02/24 15:20:39 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
@@ -18,17 +18,19 @@ static void st_render_fractal(t_state *state)
int i;
int j;
t_color color;
+ t_complex z;
color.hexcode = 0xffffff;
offset = 0;
i = -1;
- while (++i < state->window.height)
+ while (++i < WINDOW_HEIGHT)
{
j = -1;
- while (++j < state->window.width)
+ while (++j < WINDOW_WIDTH)
{
- ((t_color*)state->window.data)[offset] =
- state->palette[state->func(state->window_complex[offset])];
+ z.r = ((double)j / (double)WINDOW_WIDTH) * state->plane.r - (state->plane.r / 2.0) + state->center.r;
+ z.i = ((double)i / (double)WINDOW_HEIGHT) * state->plane.i - (state->plane.i / 2.0) + state->center.i;
+ ((t_color*)state->window.data)[offset] = state->palette[state->func(state, z)];
offset++;
}
}
@@ -41,29 +43,10 @@ int render_update(t_state *state)
state_destroy(state);
exit(EXIT_SUCCESS);
}
+ if (state->updated)
+ return (0);
st_render_fractal(state);
mlx_put_image_to_window(state->mlx_ptr, state->window_ptr, state->window.id, 0, 0);
+ state->updated = true;
return (0);
}
-
-void render_update_window_complex(t_state *state)
-{
- int i;
- int j;
- int offset;
-
- i = -1;
- offset = 0;
- while (++i < WINDOW_HEIGHT)
- {
- j = -1;
- while (++j < WINDOW_WIDTH)
- {
- state->window_complex[offset].r =
- ((double)j / (double)WINDOW_WIDTH) * state->plane.r - (state->plane.r / 2.0) + state->center.r;
- state->window_complex[offset].i =
- ((double)i / (double)WINDOW_HEIGHT) * state->plane.i - (state->plane.i / 2.0) + state->center.i;
- offset++;
- }
- }
-}
diff --git a/src/state.c b/src/state.c
index 33aa98b..40f3d00 100644
--- a/src/state.c
+++ b/src/state.c
@@ -6,16 +6,16 @@
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/24 09:58:01 by cacharle #+# #+# */
-/* Updated: 2020/02/24 12:34:50 by cacharle ### ########.fr */
+/* Updated: 2020/02/24 15:26:58 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
#include "fractol.h"
-/* #define PALETTE_START 0x000022 */
-/* #define PALETTE_END 0xd62f2f */
-#define PALETTE_START 0x000000
-#define PALETTE_END 0xffffff
+#define PALETTE_START 0x000022
+#define PALETTE_END 0xd62f2f
+/* #define PALETTE_START 0x000000 */
+/* #define PALETTE_END 0xffffff */
static void st_state_init_palette(t_state *state)
{
@@ -39,10 +39,28 @@ static void st_state_init_palette(t_state *state)
}
}
-int state_init(t_state *state, char *fractal_name)
+static int st_state_dispatch_func(t_state *state, char *fractal_name)
{
- (void)fractal_name;
+ if (ft_strcmp(fractal_name, "mandelbrot") == 0)
+ state->func = &mandelbrot;
+ else if (ft_strcmp(fractal_name, "julia") == 0)
+ {
+ state->func = &julia;
+ state->julia_const.r = 0.0;
+ state->julia_const.i = 0.0;
+ return (0);
+ }
+ else
+ return (-1);
+ state->julia_const.r = NAN;
+ state->julia_const.i = NAN;
+ return (0);
+}
+int state_init(t_state *state, char *fractal_name)
+{
+ if (st_state_dispatch_func(state, fractal_name) < 0)
+ return (-1);
if ((state->mlx_ptr = mlx_init()) == NULL)
return (-1);
if ((state->window_ptr = mlx_new_window(state->mlx_ptr, 640, 480, WINDOW_TITLE)) == NULL)
@@ -54,13 +72,12 @@ int state_init(t_state *state, char *fractal_name)
state->window.data = mlx_get_data_addr(state->window.id, &state->window.depth,
&state->window.size_line, &state->window.endian);
state->running = true;
- state->func = &mandelbrot;
- state->center.a = 0.0;
- state->center.b = 0.0;
- state->plane.a = 4.0;
- state->plane.b = 4.0;
- render_update_window_complex(state);
+ state->center.r = 0.0;
+ state->center.i = 0.0;
+ state->plane.r = 4.0;
+ state->plane.i = 4.0;
st_state_init_palette(state);
+ state->updated = false;
return (0);
}
generated by cgit (git 2.34.1) at 2026-05-16 15:31:37 +0000