uan/simple_physics
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uan
2025-12-26 10:04:23 +01:00
parent 930330d024
commit 307fb8101d
2 changed files with 10 additions and 6 deletions
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main
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main.c
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@@ -5,6 +5,9 @@
#include <stdlib.h> #include <stdlib.h>
#include "objects.h" #include "objects.h"
#define VEC3FORMAT "%lf, %lf, %lf\n"
#define PRINTVEC3(vec) printf("%f, %lf, %lf\n", vec.x, vec.y, vec.z)
struct global { struct global {
const int scwidth, scheight; const int scwidth, scheight;
int fps; int fps;
@@ -14,7 +17,7 @@ struct global {
double friction; double friction;
}; };
struct global gl = {1600, 900, 144, {}, 0, 15, 0.001}; struct global gl = {1600, 900, 144, {}, 0, 30, 0.001};
void addobj(object *obj) void addobj(object *obj)
{ {
@@ -28,7 +31,6 @@ void drawobjs()
object *obj = gl.objs[i]; object *obj = gl.objs[i];
DrawSphere(obj->pos, obj->r, obj->color); DrawSphere(obj->pos, obj->r, obj->color);
DrawSphereWires(obj->pos, obj->r, 16, 16, ColorBrightness(obj->color, -0.5f)); DrawSphereWires(obj->pos, obj->r, 16, 16, ColorBrightness(obj->color, -0.5f));
DrawLine3D(obj->pos, Vector3Add(obj->pos, obj->vel), PURPLE);
} }
} }
@@ -38,6 +40,7 @@ void updateobjs()
{ {
object *obj = gl.objs[i]; object *obj = gl.objs[i];
obj->vel.y -= 0 * GetFrameTime(); obj->vel.y -= 0 * GetFrameTime();
obj->vel = Vector3Scale(obj->vel, (1.0f-gl.friction));
//if (obj->vel.y < gl.terminal_yv) //if (obj->vel.y < gl.terminal_yv)
if (obj->pos.y < obj->r) { if (obj->pos.y < obj->r) {
obj->pos.y = obj->r; obj->pos.y = obj->r;
@@ -63,7 +66,8 @@ void updateobjs()
{ {
obj->vel = Vector3Scale(obj->vel, 1.0f/ratio_speed_to_terminal); obj->vel = Vector3Scale(obj->vel, 1.0f/ratio_speed_to_terminal);
} }
obj->vel = Vector3Scale(obj->vel, (1.0f-gl.friction)); //PRINTVEC3(obj->vel);
DrawLine3D(obj->pos, Vector3Add(obj->pos, obj->vel), PURPLE);
obj->pos = Vector3Add(obj->pos, Vector3Scale(obj->vel, GetFrameTime())); obj->pos = Vector3Add(obj->pos, Vector3Scale(obj->vel, GetFrameTime()));
} }
} }
@@ -82,9 +86,9 @@ int main(void) {
InitWindow(gl.scwidth, gl.scheight, "raylib engine"); InitWindow(gl.scwidth, gl.scheight, "raylib engine");
SetTargetFPS(gl.fps); SetTargetFPS(gl.fps);
addobj(newobj((Vector3){10, 40, 0}, 2, BLUE, 1, 200000)); addobj(newobj((Vector3){-100, 60, 0}, 2, BLUE, 0.8, 2000));
addobj(newobj((Vector3){50, 20, 0}, 5, RAYWHITE, 0., 5000000)); addobj(newobj((Vector3){100, 50, 0}, 50, RAYWHITE, 0, 50000000));
Camera3D camera = {{0, 20, 10}, {0, 20, 0}, {0, 1, 0}, 50, CAMERA_PERSPECTIVE}; Camera3D camera = {{0, 50, 20}, {0, 50, 0}, {0, 1, 0}, 50, CAMERA_PERSPECTIVE};
DisableCursor(); DisableCursor();
SetWindowMonitor(0); SetWindowMonitor(0);