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Add color to tree

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This commit is contained in:
Nikola Petrov 2024-02-22 01:01:03 +01:00
parent c56e33f23a
commit 19bb290276
1 changed files with 28 additions and 5 deletions
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33
main.cpp
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@ -1,7 +1,17 @@
#include <cmath> #include <cmath>
#include <vector>
#include <cstdint>
#include "raylib.h" #include "raylib.h"
#include "raymath.h"
#define MAX_DEPTH 10 #define MAX_DEPTH 11
struct branch
{
Color color;
};
static std::vector<branch> tree(MAX_DEPTH);
Vector2 draw_line(Vector2 start, float angleDeg, float lenghth, Color color) Vector2 draw_line(Vector2 start, float angleDeg, float lenghth, Color color)
{ {
@ -16,16 +26,27 @@ Vector2 draw_line(Vector2 start, float angleDeg, float lenghth, Color color)
void draw_branch(Vector2 start, float angle, float len, int dep) void draw_branch(Vector2 start, float angle, float len, int dep)
{ {
Vector2 next = draw_line(start, angle, len, PURPLE); if (dep >= MAX_DEPTH)
if (len < MAX_DEPTH)
return; return;
Vector2 next = draw_line(start, angle, len, tree[dep].color);
float next_len = 0.7f; float next_len = 0.7f;
draw_branch(next, angle + 45, len * next_len, dep + 1); draw_branch(next, angle + 45, len * next_len, dep + 1);
draw_branch(next, angle - 45, len * next_len, dep + 1); draw_branch(next, angle - 45, len * next_len, dep + 1);
} }
void generate_tree()
{
for (size_t i = 0; i < MAX_DEPTH; i++)
{
uint8_t r = GetRandomValue(0, 255);
uint8_t g = GetRandomValue(0, 255);
uint8_t b = GetRandomValue(0, 255);
tree[i].color = (Color){r, g, b, 255};
}
}
int main(void) int main(void)
{ {
const int screenWidth = 800; const int screenWidth = 800;
@ -41,9 +62,11 @@ int main(void)
RenderTexture2D target = LoadRenderTexture(textureWidth, textureHeight); RenderTexture2D target = LoadRenderTexture(textureWidth, textureHeight);
Vector2 start = {textureWidth / 2, textureHeight}; Vector2 start = {textureWidth / 2, textureHeight};
generate_tree();
BeginTextureMode(target); BeginTextureMode(target);
ClearBackground(WHITE); ClearBackground(WHITE);
draw_branch(start, 0, textureHeight / 4, 0); draw_branch(start, 0, textureHeight / 4, 1);
EndTextureMode(); EndTextureMode();
Rectangle source = {0, 0, (float)target.texture.width, (float)-target.texture.height}; Rectangle source = {0, 0, (float)target.texture.width, (float)-target.texture.height};