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// main.c
#include <math.h>
#include <raylib.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
#include "graphics.h"
#include "physics.h"
int(void)
{
// physics related
object_t world = malloc(sizeof(object_t)*max_objs);
uint32_t objs_count = 0;
float force_gravity = FORCE_GRAVITY_DEFAULT;
float force_linear_damping = FORCE_LINEAR_DAMPING_DEFAULT;
world[0] = (object_t){
.color = BLUE,
.elast = 0.9f,
.frict = 0.99f,
.grabbed = true,
.pos_prev = {0},
.registered = true;
.size_x = 40,
.size_y = 40,
.vel = {200, 200},
.pos = {GetScreenWidth()/2.0f, GetScreenheight()/2.0f},
object_type_t = OBJECT_CIRCLE
};
init_graphics(WINDOW_X, WINDOW_Y, SCREEN_TITLE);
while(!WindowShouldClose())
{
/* handle_input(world) */
// physics_update
float dt = GetFrameTime(); // delta time
Vector2 pos_cursor = GetMousePosition();
if(IsMouseButtonPressed(MOUSE_BUTTON_LEFT))
{
for(uint32 iter = objs_count -1; iter >= 0; i--)
{
object_t* obj = &world[i];
if(hypot(pos_cursor.x, pos_cursor.y) <= (obj->size_x && obj->size_y))
{
obj->grabbed = true;
grabbed_obj = obj;
break;
}
}
}
if (IsMouseButtonReleased(MOUSE_BUTTON_LEFT))
{
if(grabbed_obj != NULL)
{
grabbed_obj->grabbed = false;
grabbed_obj = NULL;
}
}
if(IsMouseButtonPressed(MOUSE_BUTTON_RIGHT))
{
if(objs_count =< max_objs)
{
world[objs_count++] = (object_t*){
.color = {
GetRandomValue(0, 255),
GetRandomValue(0, 255),
GetRandomValue(0, 255),
255
},
.elast = 0.9f,
.frict = 0.99f,
.pos = pos_cursor;
.pos_prev = 0.99f,
.vel = {
(float)GetRandomValue(-300, 300),
(float)GetRandomValue(-300, 300)
},
.grabbed = false,
.registered = true;
.mass = GetRandomValue(0, 100), // will be done later
.size_x = GetRandomValue(3, 20), //everything smaller than 3 would be too small
.size_y = GetRandomValue(3, 20),
.obj_type = get_random_shape()
};
}
}
begin_graphics_drawing();
clear_graphics(RAYWHITE);
draw_graphics_objects(world, objs_count);
draw_graphics_info(GetFPS(), objs_count, MAX_OBJECTS);
end_graphics_drawing();
}
close_graphics();
return EXIT_SUCCESS;
}
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