|
|
@ -0,0 +1,103 @@ |
|
|
|
/******************************************************************************************* |
|
|
|
* |
|
|
|
* raylib [shapes] example - shapes recursive tree |
|
|
|
* |
|
|
|
* Example complexity rating: [★★★☆] 3/4 |
|
|
|
* |
|
|
|
* 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 |
|
|
|
|
|
|
|
float theta; |
|
|
|
float thick = 1.0f; |
|
|
|
float branchDecay = 0.66f; |
|
|
|
bool bezier = false; |
|
|
|
|
|
|
|
void Branch(Vector2 start, float length, float angle) { |
|
|
|
length *= branchDecay; |
|
|
|
|
|
|
|
if (length > 2) { |
|
|
|
Vector2 end = { |
|
|
|
start.x + length * sinf(angle), |
|
|
|
start.y - length * cosf(angle) |
|
|
|
}; |
|
|
|
|
|
|
|
if(!bezier) DrawLineEx(start, end, thick, RED); |
|
|
|
else DrawLineBezier(start, end, thick, RED); |
|
|
|
|
|
|
|
Branch(end, length, angle + theta); |
|
|
|
Branch(end, length, angle - theta); |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
//------------------------------------------------------------------------------------ |
|
|
|
// Program main entry point |
|
|
|
//------------------------------------------------------------------------------------ |
|
|
|
int main(void) |
|
|
|
{ |
|
|
|
// Initialization |
|
|
|
//-------------------------------------------------------------------------------------- |
|
|
|
const int screenWidth = 800; |
|
|
|
const int screenHeight = 450; |
|
|
|
|
|
|
|
InitWindow(screenWidth, screenHeight, "raylib [shapes] example - shapes recursive tree"); |
|
|
|
|
|
|
|
Vector2 start = { (screenWidth / 2.0f) - 125, screenHeight }; |
|
|
|
Vector2 end = { (screenWidth / 2.0f) - 125, screenHeight - 120.0f }; |
|
|
|
float angle = 0.0f; |
|
|
|
|
|
|
|
SetTargetFPS(60); // Set our game to run at 60 frames-per-second |
|
|
|
//-------------------------------------------------------------------------------------- |
|
|
|
|
|
|
|
// Main game loop |
|
|
|
while (!WindowShouldClose()) // Detect window close button or ESC key |
|
|
|
{ |
|
|
|
float a = (angle / screenWidth) * 90.0f; |
|
|
|
theta = a * (PI / 180.0f); |
|
|
|
|
|
|
|
// Draw |
|
|
|
//---------------------------------------------------------------------------------- |
|
|
|
BeginDrawing(); |
|
|
|
|
|
|
|
ClearBackground(RAYWHITE); |
|
|
|
|
|
|
|
DrawLine(560, 0, 560, GetScreenHeight(), Fade(LIGHTGRAY, 0.6f)); |
|
|
|
DrawRectangle(560, 0, GetScreenWidth() - 500, GetScreenHeight(), Fade(LIGHTGRAY, 0.3f)); |
|
|
|
|
|
|
|
// Draw GUI controls |
|
|
|
//------------------------------------------------------------------------------ |
|
|
|
GuiSliderBar((Rectangle){ 640, 40, 120, 20}, "Angle", TextFormat("%.2f", angle), &angle, 0, 1600); |
|
|
|
GuiSliderBar((Rectangle){ 640, 70, 120, 20}, "Thick", TextFormat("%.2f", thick), &thick, 1, 8); |
|
|
|
GuiSliderBar((Rectangle){ 640, 100, 120, 20}, "Branch Decay", TextFormat("%.2f", branchDecay), &branchDecay, 0.1f, 0.78f); |
|
|
|
GuiCheckBox((Rectangle){ 640, 130, 20, 20 }, "Bezier", &bezier); |
|
|
|
//------------------------------------------------------------------------------ |
|
|
|
|
|
|
|
DrawLineEx(start, end, thick, RED); |
|
|
|
Branch(end, 120.0f, 0.0f); |
|
|
|
|
|
|
|
DrawFPS(10, 10); |
|
|
|
|
|
|
|
EndDrawing(); |
|
|
|
//---------------------------------------------------------------------------------- |
|
|
|
} |
|
|
|
|
|
|
|
// De-Initialization |
|
|
|
//-------------------------------------------------------------------------------------- |
|
|
|
CloseWindow(); // Close window and OpenGL context |
|
|
|
//-------------------------------------------------------------------------------------- |
|
|
|
|
|
|
|
return 0; |
|
|
|
} |