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119 lines
5.0 KiB
C
119 lines
5.0 KiB
C
/*******************************************************************************************
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*
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* raylib [shapes] example - polygon lines
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*
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* Example complexity rating: [★★☆☆] 2/4
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*
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* Example originally created with raylib 6.1, last time updated with raylib 6.1
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*
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* Example contributed by Matthew Roush (@MatthewRoush) and reviewed by Ramon Santamaria (@raysan5)
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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) 2026 Matthew Roush (@MatthewRoush)
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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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InitWindow(screenWidth, screenHeight, "raylib [shapes] example - polygon lines");
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int thick = 2;
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float rotation = 0.0f;
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SetTargetFPS(60);
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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 (IsKeyPressed(KEY_UP)) thick = thick + 1;
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if (IsKeyPressed(KEY_DOWN)) thick = thick - 1;
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thick = (thick < 1) ? 1 : (thick > 60) ? 60 : thick;
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rotation += (360.0f/10.0f)*GetFrameTime();
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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(TextFormat("thick = %d", thick), 10, 280, 20, LIME);
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// The square and circle outlines in the top left should match
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// The fist pair of outlines are drawn using `DrawRectangleLinesEx()` and `DrawCircleLinesEx()`
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// The second pair are drawn using `DrawPolyLinesEx()` with parameters that should visually match the first pair
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DrawText("These should look identical!", 10, 10, 20, MAROON);
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// Outline pair 1
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DrawRectangle(10, 40, 50, 50, LIGHTGRAY);
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DrawRectangleLinesEx((Rectangle){ 10, 40, 50, 50 }, (float)thick, RED);
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DrawCircle(95, 65, 25, LIGHTGRAY);
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DrawCircleLinesEx((Vector2){ 95, 65 }, 25, (float)thick, RED);
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DrawText("DrawRectangleLinesEx() and DrawCircleLinesEx()", 130, 60, 10, BLACK);
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// Outline pair 2
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DrawPoly((Vector2){ 35, 125 }, 4, 35.355f, 45, LIGHTGRAY);
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DrawPolyLinesEx((Vector2){ 35, 125 }, 4, 35.355f, 45, (float)thick, RED);
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DrawPoly((Vector2){ 95, 125 }, 36, 25, 0, LIGHTGRAY);
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DrawPolyLinesEx((Vector2){ 95, 125 }, 36, 25, 0, (float)thick, RED);
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DrawText("DrawPolyLinesEx()", 130, 120, 10, BLACK);
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// Some other shapes, all of these outlines should have the same looking thickness
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DrawPoly((Vector2){ 290, 220 }, 3, 60, rotation, LIGHTGRAY);
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DrawPolyLinesEx((Vector2){ 290, 220 }, 3, 60, rotation, (float)thick, BLUE);
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DrawPoly((Vector2){ 430, 220 }, 4, 60, rotation, LIGHTGRAY);
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DrawPolyLinesEx((Vector2){ 430, 220 }, 4, 60, rotation, (float)thick, BLUE);
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DrawPoly((Vector2){ 570, 220 }, 5, 60, rotation, LIGHTGRAY);
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DrawPolyLinesEx((Vector2){ 570, 220 }, 5, 60, rotation, (float)thick, BLUE);
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DrawPoly((Vector2){ 710, 220 }, 6, 60, rotation, LIGHTGRAY);
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DrawPolyLinesEx((Vector2){ 710, 220 }, 6, 60, rotation, (float)thick, BLUE);
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DrawPoly((Vector2){ 290, 360 }, 7, 60, rotation, LIGHTGRAY);
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DrawPolyLinesEx((Vector2){ 290, 360 }, 7, 60, rotation, (float)thick, BLUE);
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DrawPoly((Vector2){ 430, 360 }, 8, 60, rotation, LIGHTGRAY);
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DrawPolyLinesEx((Vector2){ 430, 360 }, 8, 60, rotation, (float)thick, BLUE);
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DrawPoly((Vector2){ 570, 360 }, 9, 60, rotation, LIGHTGRAY);
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DrawPolyLinesEx((Vector2){ 570, 360 }, 9, 60, rotation, (float)thick, BLUE);
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DrawPoly((Vector2){ 710, 360 }, 10, 60, rotation, LIGHTGRAY);
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DrawPolyLinesEx((Vector2){ 710, 360 }, 10, 60, rotation, (float)thick, BLUE);
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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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