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Fixed some things, broke some things, we now have some sort of a config idk timestep broken

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h3cx committed 2026-10-01 23:26:07 +02:00
1 parent c729ab4f90
commit 0891150f9d
5 files changed
+138 -67
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CMakeLists.txt
+6 -5
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@@ -32,9 +32,10 @@ target_link_libraries(${PROJECT_NAME}
raylib raylib
) )
target_compile_options(${PROJECT_NAME} target_compile_options(${PROJECT_NAME} PRIVATE
PRIVATE -Wall
-Wall -Wextra
-Wextra -Wpedantic
-Wpedantic $<$<CONFIG:Debug>:-ggdb -O0>
$<$<CONFIG:Release>:-O3>
) )
config.fphy
+38
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@@ -0,0 +1,38 @@
mass(EARTH_MASS), radius(km), {x(UA), y(UA)}, {vx(km/s), vy(km/s)}, draw_radius(km), charge(C), name
330432.0, 696340.0, {0, 0}, {0, 0}, 696340, 0, Sun
0.055, 2439.7, {0.387, 0}, {0, -38.86}, 80, 0, Mercury
0.815, 6051.8, {0.723, 0}, {0, -34.79}, 190, 0, Venus
1.0, 6371.0, {1.0, 0}, {0, -29.29}, 200, 0, Earth
0.107, 3389.5, {1.524, 0}, {0, -21.97}, 106, 0, Mars
317.83, 69911.0, {5.203, 0}, {0, -12.43}, 400, 0, Jupiter
95.159, 58232.0, {9.582, 0}, {0, -9.11}, 300, 0, Saturn
14.536, 25362.0, {19.201, 0}, {0, -6.80}, 250, 0, Uranus
17.147, 24622.0, {30.069, 0}, {0, -5.43}, 250, 0, Neptune
0.012294, 1737.4, {1.002570, 0}, {0, -30.3083}, 60, 0, Moon
0.000000001775, 11.27, {1.524063, 0}, {0, -24.1070}, 20, 0, Phobos
0.000000000402, 6.20, {1.524157, 0}, {0, -23.3212}, 16, 0, Deimos
0.00000001674, 21.5, {5.203856, 0}, {0, -43.8901}, 15, 0, Metis
0.00000000335, 8.2, {5.203862, 0}, {0, -43.7679}, 12, 0, Adrastea
0.000001256, 83.5, {5.204213, 0}, {0, -38.8569}, 20, 0, Amalthea
0.000000134, 49.3, {5.204483, 0}, {0, -36.3239}, 18, 0, Thebe
0.014956, 1821.49, {5.205820, 0}, {0, -29.7605}, 65, 0, Io
0.008037, 1560.80, {5.207486, 0}, {0, -26.1695}, 60, 0, Europa
0.024813, 2631.20, {5.210155, 0}, {0, -23.3091}, 75, 0, Ganymede
0.018015, 2410.30, {5.215585, 0}, {0, -20.6330}, 70, 0, Callisto
0.000001591, 85.0, {5.279739, 0}, {0, -15.7520}, 20, 0, Himalia
0.000006346, 198.2, {9.583240, 0}, {0, -23.4089}, 24, 0, Mimas
0.000018084, 252.1, {9.583591, 0}, {0, -21.7338}, 28, 0, Enceladus
0.000103479, 531.1, {9.583970, 0}, {0, -20.4559}, 36, 0, Tethys
0.000184187, 561.4, {9.584523, 0}, {0, -19.1353}, 38, 0, Dione
0.000386792, 763.8, {9.585523, 0}, {0, -17.5935}, 44, 0, Rhea
0.0225294, 2575.0, {9.590168, 0}, {0, -14.6817}, 75, 0, Titan
0.000000938, 135.0, {9.592033, 0}, {0, -14.1371}, 20, 0, Hyperion
0.000303071, 734.5, {9.605803, 0}, {0, -12.3738}, 42, 0, Iapetus
0.000011051, 235.8, {19.201865, 0}, {0, -13.4917}, 25, 0, Miranda
0.000226047, 578.9, {19.202277, 0}, {0, -12.3074}, 38, 0, Ariel
0.000195908, 584.7, {19.202780, 0}, {0, -11.4645}, 38, 0, Umbriel
0.000589398, 788.9, {19.203914, 0}, {0, -10.4458}, 45, 0, Titania
0.000504002, 761.4, {19.204901, 0}, {0, -9.9511}, 44, 0, Oberon
0.000008372, 210.0, {30.069686, 0}, {0, -13.0522}, 25, 0, Proteus
0.00358327, 1353.4, {30.071271, 0}, {0, -1.0406}, 55, 0, Triton
0.000005023, 170.0, {30.105758, 0}, {0, -6.5434}, 23, 0, Nereid
consts.h
+9 -8
View File
@@ -1,15 +1,16 @@
#ifndef CONSTS_H_ #ifndef CONSTS_H_
#define CONSTS_H_ #define CONSTS_H_
#define LOOP_TIMESTEP 1000000LL // Wall-clock nanoseconds between updates (1 kHz). #define LOOP_TIMESTEP \
#define PHYSICS_TIMESTEP 100.0f // Simulated seconds per update. 1000000LL // Wall-clock nanoseconds between updates (1 kHz).
#define WALL_COLLISIONS 0 // Enable for bounded collision tests. #define PHYSICS_TIMESTEP 10.0f // Simulated seconds per update.
#define WALL_COLLISIONS 0 // Enable for bounded collision tests.
#define NEWTON_G 6.674e-11 #define NEWTON_G 6.674e-11
#define EARTH_MASS 5.9722e24 // Kilograms per simulation mass unit. #define EARTH_MASS 5.9722e24 // Kilograms per simulation mass unit.
#define UA 149.6E6 #define UA 149.6E6
#define RT 6378.14 // Kilometers per simulation distance unit. #define EARTH_RADIUS 6378.14 // Kilometers per simulation distance unit.
#define DISTANCE_UNIT_METERS (RT * 1000.0) #define DISTANCE_UNIT_METERS (EARTH_RADIUS * 1000.0)
#define SIMULATION_G (NEWTON_G * EARTH_MASS / \ #define SIMULATION_G \
(DISTANCE_UNIT_METERS * DISTANCE_UNIT_METERS * \ (NEWTON_G * EARTH_MASS / \
DISTANCE_UNIT_METERS)) (DISTANCE_UNIT_METERS * DISTANCE_UNIT_METERS * DISTANCE_UNIT_METERS))
#endif // CONSTS_H_ #endif // CONSTS_H_
main.c
+81 -54
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@@ -1,4 +1,5 @@
#define _POSIX_C_SOURCE 200809L #define _POSIX_C_SOURCE 200809L
#include "consts.h" #include "consts.h"
#include "gravity.h" #include "gravity.h"
#include "magnetism.h" #include "magnetism.h"
@@ -11,6 +12,7 @@
#include <raylib.h> #include <raylib.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h>
#include <time.h> #include <time.h>
#include <unistd.h> #include <unistd.h>
@@ -50,34 +52,48 @@ void *physics(void *args) {
} }
} }
int main(void) { int main(int argc, char **argv) {
if (argc != 2) {
printf("No config provided\n");
return EXIT_FAILURE;
}
FILE *file = fopen(argv[1], "r");
if (file == NULL) {
printf("File not found");
return EXIT_FAILURE;
}
int cam_lock = -1;
float v_scale = 1; float v_scale = 1;
Vector2 canvas_offset = {0, 0}; Vector2 canvas_offset = {0, 0};
pthread_t physics_thread; pthread_t physics_thread;
const char *welcome_text = "Welcome to Fucked Physics!"; const char *welcome_text = "Welcome to Fucked Physics!";
universe_t universe = {0, NULL}; universe_t universe = {0, NULL};
universe.bodies = malloc(1024 * sizeof(mass_body_t)); universe.bodies = malloc(1024 * sizeof(mass_body_t));
universe.num_bodies = 7; universe.num_bodies = 0;
char line[1024];
fgets(line, 1024, file);
while (fgets(line, 1024, file)) {
printf("%s", line);
float mass, radius, x, y, vx, vy, draw_radius, charge;
char name[32];
sscanf(line, "%f, %f, {%f, %f}, {%f, %f}, %f, %f, %31s", &mass, &radius, &x,
&y, &vx, &vy, &draw_radius, &charge, name);
universe.bodies[universe.num_bodies] = (mass_body_t){
.mass = mass,
.radius = radius / EARTH_RADIUS,
.position = (Vector2){x * UA / EARTH_RADIUS, y * UA / EARTH_RADIUS},
.speed = (Vector2){vx / EARTH_RADIUS, vy / EARTH_RADIUS},
.draw_radius = draw_radius / EARTH_RADIUS,
.charge = charge};
memcpy((void *)&universe.bodies[universe.num_bodies].name, (void *)&name,
32);
universe.num_bodies++;
}
fclose(file);
universe.bodies[0] =
(mass_body_t){330432.0f, 696340 / RT, {0, 0}, {0, 0}, 600, 0, "Sun"};
universe.bodies[1] = (mass_body_t){
0.055f, 2439.7 / RT, {0.387 * UA / RT, 0}, {0, -38.86 / RT}, 80,
0, "Mercury"};
universe.bodies[2] = (mass_body_t){
0.815f, 6051.8 / RT, {0.723 * UA / RT, 0}, {0, -34.79 / RT}, 190,
0, "Venus"};
universe.bodies[3] = (mass_body_t){
1.0f, 1.0f, {1 * UA / RT, 0}, {0, -29.29 / RT}, 200, 0, "Earth"};
universe.bodies[4] = (mass_body_t){
0.107f, 3389.5 / RT, {1.524 * UA / RT, 0}, {0, -21.97 / RT}, 106,
0, "Mars"};
universe.bodies[5] = (mass_body_t){
317.83f, 69911 / RT, {5.203 * UA / RT, 0}, {0, -12.43 / RT}, 400,
0, "Jupiter"};
universe.bodies[6] = (mass_body_t){
95.159f, 58232 / RT, {9.582 * UA / RT, 0}, {0, -9.11 / RT}, 300,
0, "Saturn"};
SetConfigFlags(FLAG_WINDOW_RESIZABLE); SetConfigFlags(FLAG_WINDOW_RESIZABLE);
InitWindow(800, 450, "Fucked Physics"); InitWindow(800, 450, "Fucked Physics");
SetTargetFPS(120); SetTargetFPS(120);
@@ -90,18 +106,10 @@ int main(void) {
key_pressed = GetKeyPressed(); key_pressed = GetKeyPressed();
switch (key_pressed) { switch (key_pressed) {
case KEY_I: case KEY_I:
if (v_scale >= 0.1) { v_scale *= 1.26;
v_scale += 0.1;
} else {
v_scale += 0.01;
}
break; break;
case KEY_O: case KEY_O:
if (v_scale > 0.1) { v_scale /= 1.26;
v_scale -= 0.1;
} else if (v_scale > 0.01) {
v_scale -= 0.01;
}
break; break;
case KEY_LEFT: case KEY_LEFT:
canvas_offset.x += 100; canvas_offset.x += 100;
@@ -115,6 +123,38 @@ int main(void) {
case KEY_DOWN: case KEY_DOWN:
canvas_offset.y -= 100; canvas_offset.y -= 100;
break; break;
case KEY_ONE:
cam_lock = 1;
break;
case KEY_TWO:
cam_lock = 2;
break;
case KEY_THREE:
cam_lock = 3;
break;
case KEY_FOUR:
cam_lock = 4;
break;
case KEY_FIVE:
cam_lock = 5;
break;
case KEY_SIX:
cam_lock = 6;
break;
case KEY_SEVEN:
cam_lock = 7;
break;
case KEY_EIGHT:
cam_lock = 8;
break;
case KEY_NINE:
cam_lock = 9;
break;
case KEY_ZERO:
cam_lock = 0;
break;
case KEY_F:
cam_lock = -1;
} }
} while (key_pressed != 0); } while (key_pressed != 0);
@@ -133,34 +173,21 @@ int main(void) {
universe.num_bodies++; universe.num_bodies++;
} }
if (canvas_offset.x + GetRenderWidth() * 0.5 / v_scale >
GetRenderWidth() * 50) {
canvas_offset.x =
-GetRenderWidth() * 0.5 / v_scale + GetRenderWidth() * 50;
} else if (canvas_offset.x - GetRenderWidth() * 0.5 / v_scale <
-GetRenderWidth() * 50) {
canvas_offset.x =
GetRenderWidth() * 0.5 / v_scale - GetRenderWidth() * 50;
}
if (canvas_offset.y + GetRenderHeight() * 0.5 / v_scale >
GetRenderHeight() * 50) {
canvas_offset.y =
-GetRenderHeight() * 0.5 / v_scale + GetRenderHeight() * 50;
} else if (canvas_offset.y - GetRenderHeight() * 0.5 / v_scale <
-GetRenderHeight() * 50) {
canvas_offset.y =
GetRenderHeight() * 0.5 / v_scale - GetRenderHeight() * 50;
}
BeginDrawing(); BeginDrawing();
ClearBackground(RAYWHITE); ClearBackground(RAYWHITE);
for (unsigned int i = 0; i < universe.num_bodies; i++) { for (unsigned int i = 0; i < universe.num_bodies; i++) {
Vector2 scaled_offset = vec2_scale(canvas_offset, v_scale); Vector2 local_offset = canvas_offset;
if (cam_lock != -1) {
local_offset = vec2_scale(universe.bodies[cam_lock].position, -1);
}
Vector2 scaled_offset = vec2_scale(local_offset, v_scale);
Vector2 body_position = vec2_scale(universe.bodies[i].position, v_scale); Vector2 body_position = vec2_scale(universe.bodies[i].position, v_scale);
body_position = vec2_sum(body_position, scaled_offset); body_position = vec2_sum(body_position, scaled_offset);
body_position = transform_to_center(body_position); body_position = transform_to_center(body_position);
float draw_radius = universe.bodies[i].draw_radius * v_scale; float draw_radius = universe.bodies[i].draw_radius * v_scale;
if (draw_radius < 2) {
draw_radius = 2;
}
DrawCircleV(body_position, draw_radius, DrawCircleV(body_position, draw_radius,
(Color){((256 / universe.num_bodies) * i) % 256 / 2, (Color){((256 / universe.num_bodies) * i) % 256 / 2,
255 * (i % 2) / 2, 255 * (i % 2) * (i % 3) / 2, 255}); 255 * (i % 2) / 2, 255 * (i % 2) * (i % 3) / 2, 255});
@@ -170,8 +197,8 @@ int main(void) {
(int)(body_position.y - 8), 16, BLACK); (int)(body_position.y - 8), 16, BLACK);
} }
DrawText(welcome_text, center_x_text(welcome_text, GetRenderWidth(), 20), // DrawText(welcome_text, center_x_text(welcome_text, GetRenderWidth(), 20),
center_y_text(GetRenderHeight(), 20), 20, BLACK); // center_y_text(GetRenderHeight(), 20), 20, BLACK);
EndDrawing(); EndDrawing();
} }
three.fphy
+4
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@@ -0,0 +1,4 @@
mass(EARTH_MASS), radius(km), {x(UA), y(UA)}, {vx(km/s), vy(km/s)}, draw_radius(km), charge(C), name
396518.4, 760000, {-0.85, 0}, {0, 45.0}, 220000, 0, Alpha
297388.8, 650000, {-0.35, 0}, {0, -37.0}, 200000, 0, Beta
495648.0, 900000, {1.30, 0}, {0, -14.5}, 250000, 0, Gamma