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			|  |  |  | /******************************************************************************************* | 
		
	
		
			
			|  |  |  | * | 
		
	
		
			
			|  |  |  | *   raylib [shapes] example - triangle strip | 
		
	
		
			
			|  |  |  | * | 
		
	
		
			
			|  |  |  | *   Example complexity rating: [★★☆☆] 2/4 | 
		
	
		
			
			|  |  |  | * | 
		
	
		
			
			|  |  |  | *   Example originally created with raylib 5.6-dev, last time updated with raylib 5.6-dev | 
		
	
		
			
			|  |  |  | * | 
		
	
		
			
			|  |  |  | *   Example contributed by Jopestpe (@jopestpe) | 
		
	
		
			
			|  |  |  | * | 
		
	
		
			
			|  |  |  | *   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified, | 
		
	
		
			
			|  |  |  | *   BSD-like license that allows static linking with closed source software | 
		
	
		
			
			|  |  |  | * | 
		
	
		
			
			|  |  |  | *   Copyright (c) 2018-2025 Jopestpe (@jopestpe) | 
		
	
		
			
			|  |  |  | * | 
		
	
		
			
			|  |  |  | ********************************************************************************************/ | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | #include "raylib.h" | 
		
	
		
			
			|  |  |  | #include <math.h> | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | #define RAYGUI_IMPLEMENTATION | 
		
	
		
			
			|  |  |  | #include "raygui.h"                 // Required for GUI controls | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | //------------------------------------------------------------------------------------ | 
		
	
		
			
			|  |  |  | // Program main entry point | 
		
	
		
			
			|  |  |  | //------------------------------------------------------------------------------------ | 
		
	
		
			
			|  |  |  | int main(void) | 
		
	
		
			
			|  |  |  | { | 
		
	
		
			
			|  |  |  | // Initialization | 
		
	
		
			
			|  |  |  | //-------------------------------------------------------------------------------------- | 
		
	
		
			
			|  |  |  | const int screenWidth = 800; | 
		
	
		
			
			|  |  |  | const int screenHeight = 450; | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | InitWindow(screenWidth, screenHeight, "raylib [shapes] example - triangle strip"); | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | Vector2 points[120] = { 0 }; | 
		
	
		
			
			|  |  |  | Vector2 center = { (screenWidth/2.0f) - 125.f, screenHeight/2.0f }; | 
		
	
		
			
			|  |  |  | float segments = 6.0f; | 
		
	
		
			
			|  |  |  | float insideRadius = 100.0f; | 
		
	
		
			
			|  |  |  | float outsideRadius = 150.0f; | 
		
	
		
			
			|  |  |  | bool outline = true; | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | SetTargetFPS(60);               // Set our game to run at 60 frames-per-second | 
		
	
		
			
			|  |  |  | //-------------------------------------------------------------------------------------- | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | // Main game loop | 
		
	
		
			
			|  |  |  | while (!WindowShouldClose())    // Detect window close button or ESC key | 
		
	
		
			
			|  |  |  | { | 
		
	
		
			
			|  |  |  | // Update | 
		
	
		
			
			|  |  |  | //---------------------------------------------------------------------------------- | 
		
	
		
			
			|  |  |  | int pointCount = (int)(segments); | 
		
	
		
			
			|  |  |  | float angleStep = (360.0f/pointCount)*DEG2RAD; | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | for (int i = 0, i2 = 0; i < pointCount; i++, i2 += 2) | 
		
	
		
			
			|  |  |  | { | 
		
	
		
			
			|  |  |  | float angle1 = i*angleStep; | 
		
	
		
			
			|  |  |  | points[i2] = (Vector2){ center.x + cosf(angle1)*insideRadius, center.y + sinf(angle1)*insideRadius }; | 
		
	
		
			
			|  |  |  | float angle2 = angle1 + angleStep/2.0f; | 
		
	
		
			
			|  |  |  | points[i2 + 1] = (Vector2){ center.x + cosf(angle2)*outsideRadius, center.y + sinf(angle2)*outsideRadius }; | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | points[pointCount*2] = points[0]; | 
		
	
		
			
			|  |  |  | points[pointCount*2 + 1] = points[1]; | 
		
	
		
			
			|  |  |  | //---------------------------------------------------------------------------------- | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | // Draw | 
		
	
		
			
			|  |  |  | //---------------------------------------------------------------------------------- | 
		
	
		
			
			|  |  |  | BeginDrawing(); | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | ClearBackground(RAYWHITE); | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | for (int i = 0, i2 = 0; i < pointCount; i++, i2 += 2) | 
		
	
		
			
			|  |  |  | { | 
		
	
		
			
			|  |  |  | float angle1 = i*angleStep; | 
		
	
		
			
			|  |  |  | Color color = ColorFromHSV(angle1*RAD2DEG, 1.0f, 1.0f); | 
		
	
		
			
			|  |  |  | DrawTriangle(points[i2 + 2], points[i2 + 1], points[i2], color); | 
		
	
		
			
			|  |  |  | if (outline) DrawTriangleLines(points[i2], points[i2 + 1], points[i2 + 2], BLACK); | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | float angle2 = angle1 + angleStep/2.0f; | 
		
	
		
			
			|  |  |  | color = ColorFromHSV(angle2*RAD2DEG, 1.0f, 1.0f); | 
		
	
		
			
			|  |  |  | DrawTriangle(points[i2 + 3], points[i2 + 1], points[i2 + 2], color); | 
		
	
		
			
			|  |  |  | if (outline) DrawTriangleLines(points[i2 + 2], points[i2 + 1], points[i2 + 3], BLACK); | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | DrawLine(580, 0, 580, GetScreenHeight(), (Color){ 218, 218, 218, 255 }); | 
		
	
		
			
			|  |  |  | DrawRectangle(580, 0, GetScreenWidth(), GetScreenHeight(), (Color){ 232, 232, 232, 255 }); | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | // Draw GUI controls | 
		
	
		
			
			|  |  |  | //------------------------------------------------------------------------------ | 
		
	
		
			
			|  |  |  | GuiSliderBar((Rectangle){ 640, 40, 120, 20}, "Segments", TextFormat("%.0f", segments), &segments, 6.0f, 60.f); | 
		
	
		
			
			|  |  |  | GuiCheckBox((Rectangle){ 640, 70, 20, 20 }, "Outline", &outline); | 
		
	
		
			
			|  |  |  | //------------------------------------------------------------------------------ | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | DrawFPS(10, 10); | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | EndDrawing(); | 
		
	
		
			
			|  |  |  | //---------------------------------------------------------------------------------- | 
		
	
		
			
			|  |  |  | } | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | // De-Initialization | 
		
	
		
			
			|  |  |  | //-------------------------------------------------------------------------------------- | 
		
	
		
			
			|  |  |  | CloseWindow();        // Close window and OpenGL context | 
		
	
		
			
			|  |  |  | //-------------------------------------------------------------------------------------- | 
		
	
		
			
			|  |  |  |  | 
		
	
		
			
			|  |  |  | return 0; | 
		
	
		
			
			|  |  |  | } |