68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
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#include <stdio.h>
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#include <math.h>
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#include "raylib.h"
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#define RAD_TO_DEG(rad) (rad) * (180 / PI)
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#define DEG_TO_RAD(deg) (deg) / (180 / PI)
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#define COLOR ORANGE
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const Vector2 screen = {.x = 1000, .y = 1000};
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void branche(Vector2 origin, float base_angle, float angle, float step, int level)
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{
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if (level <= 0)
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return;
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Vector2 dest = {
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.x = origin.x + cos(DEG_TO_RAD(angle)) * step,
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.y = origin.y - sin(DEG_TO_RAD(angle)) * step,
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};
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DrawLineEx(origin, dest, level/6, COLOR);
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branche(dest, base_angle, angle + base_angle/2, step*3/4, level-1);
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branche(dest, base_angle, angle - base_angle/2, step*3/4, level-1);
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}
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void arbre(float angle, float step, float level)
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{
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Vector2 origin = {screen.x/2, screen.y - 50};
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Vector2 dest = {origin.x, origin.y - step};
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DrawLineEx(origin, dest, level/4, COLOR);
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branche(dest, angle, 90.0f + angle/2, step/2, level);
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branche(dest, angle, 90.0f - angle/2, step/2, level);
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}
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int main(void)
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{
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float angle = 90.0f;
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SetTraceLogLevel(LOG_ERROR);
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InitWindow(screen.x, screen.y, "arbre");
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SetTargetFPS(60);
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while (!WindowShouldClose()) {
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BeginDrawing();
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{
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ClearBackground(BLACK);
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if (IsKeyDown(KEY_D))
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angle -= 0.7f;
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if (IsKeyDown(KEY_A))
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angle += 0.7f;
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arbre(angle, screen.x/4, 16);
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printf(" %.02f \r", angle);
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fflush(stdout);
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}
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EndDrawing();
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}
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CloseWindow();
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printf("\n");
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return 0;
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}
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