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82 regels
3.2 KiB
82 regels
3.2 KiB
/*******************************************************************************************
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*
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* raylib [shapes] example - Cubic-bezier lines
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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) 2017-2023 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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//------------------------------------------------------------------------------------
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// Program main entry point
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//------------------------------------------------------------------------------------
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int main(void)
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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const int screenWidth = 800;
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const int screenHeight = 450;
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SetConfigFlags(FLAG_MSAA_4X_HINT);
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InitWindow(screenWidth, screenHeight, "raylib [shapes] example - cubic-bezier lines");
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Vector2 start = { 0, 0 };
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Vector2 end = { (float)screenWidth, (float)screenHeight };
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Vector2 startControl = { 100, 0 };
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Vector2 endControl = { GetScreenWidth() - 100, GetScreenHeight() };
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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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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// Update
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//----------------------------------------------------------------------------------
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if (IsKeyDown(KEY_LEFT_CONTROL))
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{
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if (IsMouseButtonDown(MOUSE_BUTTON_LEFT)) startControl = GetMousePosition();
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else if (IsMouseButtonDown(MOUSE_BUTTON_RIGHT)) endControl = GetMousePosition();
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}
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else
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{
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if (IsMouseButtonDown(MOUSE_BUTTON_LEFT)) start = GetMousePosition();
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else if (IsMouseButtonDown(MOUSE_BUTTON_RIGHT)) end = GetMousePosition();
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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(RAYWHITE);
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DrawText("USE MOUSE LEFT-RIGHT CLICK to DEFINE LINE START and END POINTS", 15, 20, 20, GRAY);
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//DrawLineBezier(start, end, 2.0f, RED);
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DrawLineBezierCubic(start, end, startControl, endControl, 2.0f, RED);
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DrawLineEx(start, startControl, 1.0, LIGHTGRAY);
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DrawLineEx(end, endControl, 1.0, LIGHTGRAY);
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DrawCircleV(startControl, 10, RED);
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DrawCircleV(endControl, 10, RED);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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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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