129 lines
4.2 KiB
C#
129 lines
4.2 KiB
C#
/*******************************************************************************************
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*
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* raylib [shapes] example - lines bezier
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*
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* Example complexity rating: [★☆☆☆] 1/4
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*
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* Example originally created with raylib 1.7, last time updated with raylib 1.7
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*
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* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
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* BSD-like license that allows static linking with closed source software
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*
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* Copyright (c) 2017-2025 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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using System.Numerics;
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using static Raylib_cs.Raylib;
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namespace Examples.Shapes;
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public partial class LinesBezier : IExample
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{
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private const int screenWidth = 800;
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private const int screenHeight = 450;
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public string Name => "Shapes / Lines Bezier";
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public string Title => "raylib [shapes] example - lines bezier";
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public ConfigFlags ConfigFlags => ConfigFlags.Msaa4xHint;
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private Vector2 startPoint;
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private Vector2 endPoint;
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private bool moveStartPoint;
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private bool moveEndPoint;
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public void Init()
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{
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startPoint = new(30, 30);
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endPoint = new(screenWidth - 30, screenHeight - 30);
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moveStartPoint = false;
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moveEndPoint = false;
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}
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public void Update()
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{
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// Update
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//----------------------------------------------------------------------------------
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var mouse = GetMousePosition();
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if (CheckCollisionPointCircle(mouse, startPoint, 10.0f) && IsMouseButtonDown(MouseButton.Left))
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{
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moveStartPoint = true;
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}
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else if (CheckCollisionPointCircle(mouse, endPoint, 10.0f) && IsMouseButtonDown(MouseButton.Left))
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{
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moveEndPoint = true;
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}
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if (moveStartPoint)
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{
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startPoint = mouse;
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if (IsMouseButtonReleased(MouseButton.Left))
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{
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moveStartPoint = false;
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}
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}
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if (moveEndPoint)
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{
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endPoint = mouse;
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if (IsMouseButtonReleased(MouseButton.Left))
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{
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moveEndPoint = false;
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}
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}
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(Color.RayWhite);
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DrawText("MOVE START-END POINTS WITH MOUSE", 15, 20, 20, Color.Gray);
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// Draw line Cubic Bezier, in-out interpolation (easing), no control points
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DrawLineBezier(startPoint, endPoint, 4.0f, Color.Blue);
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// Draw start-end spline circles with some details
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DrawCircleV(startPoint, CheckCollisionPointCircle(mouse, startPoint, 10.0f) ? 14.0f : 8.0f, moveStartPoint ? Color.Red : Color.Blue);
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DrawCircleV(endPoint, CheckCollisionPointCircle(mouse, endPoint, 10.0f) ? 14.0f : 8.0f, moveEndPoint ? Color.Red : Color.Blue);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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public void Unload()
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{
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}
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public static int Main()
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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SetConfigFlags(ConfigFlags.Msaa4xHint);
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InitWindow(screenWidth, screenHeight, "raylib [shapes] example - lines bezier");
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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var game = new LinesBezier();
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game.Init();
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// Main game loop
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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game.Update();
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}
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game.Unload();
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// De-Initialization
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//--------------------------------------------------------------------------------------
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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}
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}
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