treender/src/App.cpp
2024-12-02 01:11:33 +01:00

76 lines
1.8 KiB
C++

#include <array>
#include <cmath>
#include "App.hpp"
#include "Math.hpp"
#include "values/mrand.hpp"
#include <raylib.h>
#include <raymath.h>
void App::init(int screenWidth, int screenHeight)
{
this->screenWidth = screenWidth;
this->screenHeight = screenHeight;
this->canvas.init(screenWidth);
mrand::setSeed(1);
for (size_t i = 0; i < canvasTexure.size(); i++)
{
canvasTexure[i] = LoadRenderTexture(screenWidth, screenWidth);
}
canvas.newGen(canvasTexure[0]);
canvas.newGen(canvasTexure[1]);
float posY = (screenHeight - screenWidth) / 2.0f;
destA = {0, posY, (float)screenWidth, (float)screenWidth};
destB = destA;
}
void App::update()
{
if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT))
{
mouseStart = GetMousePosition();
validHit = CheckCollisionPointRec(mouseStart, destA);
len = Vector2Distance(mouseStart, {destB.x, destB.y});
ofset = std::atan2(destB.x - mouseStart.x, destB.y - mouseStart.y);
}
if (IsMouseButtonDown(MOUSE_BUTTON_LEFT) && validHit)
{
Vector2 mousePosition = GetMousePosition();
float dist = mousePosition.x - mouseStart.x;
float l = dist / screenWidth;
rotation = Lerp(45.0f, -45.0f, (l + 1) / 2);
Vector2 newCenter = CalculateVector(rotation, ofset, len);
destA.x = newCenter.x + mousePosition.x;
destA.y = newCenter.y + mousePosition.y;
}
if (IsMouseButtonReleased(MOUSE_BUTTON_LEFT) && validHit)
{
canvas.newGen(canvasTexure[1 - pos]);
pos = 1 - pos;
rotation = 0.0f;
destA = destB;
}
}
void App::draw()
{
ClearBackground(RED);
drawTexureWithRotation(canvasTexure[pos], destB, 0.0f);
drawTexureWithRotation(canvasTexure[1 - pos], destA, rotation);
}
void App::deinit()
{
for (size_t i = 0; i < canvasTexure.size(); i++)
{
UnloadRenderTexture(canvasTexure[i]);
}
canvas.deinit();
}