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#pragma once
#include "raylib.h"
#include <cstdlib>
#include <format>
#include <optional>
#include <random>
struct PetalThing {
Texture2D texture;
bool direction;
Vector2 position;
};
class Petal {
private:
PetalThing thing_;
Vector2 size_;
Color color_;
std::mt19937 generator_;
std::uniform_real_distribution<float> change_direction_;
std::optional<Vector2> prev_mouse_position;
Texture2D cut_texture_;
std::vector<PetalThing> petal_things_;
long frame_count_ = 0;
Rectangle window_;
float fall_speed_;
void update_position(PetalThing *thing) {
if (change_direction_(generator_) > 0.95) {
thing->direction = !thing->direction;
}
float next_position = thing->direction ? thing->position.x - 2 : thing->position.x + 2;
if (next_position <= 0 - (thing->texture.width / 3.0f)) {
thing->direction = false; // we want to go right, right is false, clearly
next_position += 4;
}
if (next_position >= window_.width - (thing->texture.width / 3.0f)) {
thing->direction = true;
next_position -= 4;
}
thing->position.x = next_position;
thing->position.y += fall_speed_;
}
bool cut_internal(Vector2 start, Vector2 end) {
Rectangle rect = {
.x = thing_.position.x - 2,
.y = thing_.position.y - 2,
.width = size_.x + 4,
.height = size_.y + 4,
};
if (CheckCollisionPointRec(start, rect)) {
return true;
}
if (CheckCollisionPointRec(end, rect)) {
return true;
}
Vector2 tl = thing_.position;
Vector2 tr = {.x = rect.x + rect.width, .y = rect.y};
Vector2 bl = {.x = rect.x, .y = rect.y + rect.height};
Vector2 br = {.x = rect.x + rect.width, .y = rect.y + rect.height};
Vector2 collision_point;
if (CheckCollisionLines(start, end, tl, tr, &collision_point)) {
return true;
}
if (CheckCollisionLines(start, end, tl, bl, &collision_point)) {
return true;
}
if (CheckCollisionLines(start, end, bl, br, &collision_point)) {
return true;
}
if (CheckCollisionLines(start, end, br, tr, &collision_point)) {
return true;
}
return false;
}
public:
~Petal() = default;
Petal(Rectangle window, unsigned seed) : window_(window) {
generator_ = std::mt19937(seed);
std::uniform_int_distribution<int> speed(0, 80);
std::uniform_int_distribution<int> x(0, window_.width);
auto pedal_thing = std::uniform_int_distribution<int>(0, 2);
int pedal = pedal_thing(generator_);
std::string file_path = std::format("assets/pedals/{}.png", pedal);
cut_texture_ = LoadTexture("assets/pedals/cut_pedal.png");
thing_.texture = LoadTexture(file_path.c_str());
thing_.position.x = x(generator_);
thing_.position.y = -thing_.texture.height;
size_ = {(float)thing_.texture.width, (float)thing_.texture.height};
color_ = {0xFF, 0xFF, 0xFF, 0xFF};
fall_speed_ = speed(generator_) / 100.0f;
}
Petal(Rectangle window, Vector2 position, int p, float speed = 0.6) : window_(window) {
std::random_device rd;
generator_ = std::mt19937(rd());
change_direction_ = std::uniform_real_distribution<float>();
thing_.position = position;
thing_.texture = LoadTexture(std::format("assets/pedals/{}.png", p).c_str());
cut_texture_ = LoadTexture("assets/pedals/cut_pedal.png");
size_ = {(float)thing_.texture.width, (float)thing_.texture.height};
fall_speed_ = speed;
color_ = {0xFF, 0xFF, 0xFF, 0xFF};
}
bool IsCut = false;
void Cut() {
IsCut = true;
petal_things_.push_back(
PetalThing{
.texture = cut_texture_,
.direction = true,
.position = Vector2{thing_.position.x - 1, thing_.position.y - 1}});
petal_things_.push_back(
PetalThing{
.texture = cut_texture_,
.direction = false,
.position = Vector2{thing_.position.x + 1, thing_.position.y - 1}});
petal_things_.push_back(
PetalThing{
.texture = cut_texture_,
.direction = true,
.position = Vector2{thing_.position.x - 1, thing_.position.y + 1}});
petal_things_.push_back(
PetalThing{
.texture = cut_texture_,
.direction = false,
.position = Vector2{thing_.position.x + 1, thing_.position.y + 1}});
}
void Cut(Vector2 start, Vector2 end) {
if (cut_internal(start, end)) {
Cut();
}
}
void Update() {
frame_count_ += 1;
if (frame_count_ % 2 != 0) {
return;
}
if (IsCut) {
for (PetalThing &thing : petal_things_) {
update_position(&thing);
}
} else {
update_position(&thing_);
}
}
void Draw() {
if (IsCut) {
for (auto petal : petal_things_) {
DrawTextureEx(petal.texture, petal.position, 0, 1, color_);
}
} else {
DrawTextureEx(thing_.texture, thing_.position, 0, 1, color_);
}
}
Vector2 GetPosition() { return thing_.position; }
};
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