From 91c1bc50f317c62ca57eea9df23d65ac03e8dcf8 Mon Sep 17 00:00:00 2001
From: Felix Pankratz <mail@felixpankratz.de>
Date: Sat, 7 Dec 2024 19:24:18 +0100
Subject: [PATCH] basic blob

---
 organism/src/main.cpp | 86 ++++++++++++++++++++++++++++++++-----------
 1 file changed, 64 insertions(+), 22 deletions(-)

diff --git a/organism/src/main.cpp b/organism/src/main.cpp
index c14dad6..f72484d 100644
--- a/organism/src/main.cpp
+++ b/organism/src/main.cpp
@@ -41,6 +41,15 @@ int end_y = 27;
 int anchor_x = 16;
 int anchor_y = 24;
 
+#define BLOB_POINTS 14
+#define BLOB_RADIUS 12
+typedef struct {
+  int x_coords[BLOB_POINTS];
+  int y_coords[BLOB_POINTS];
+} Blob;
+
+Blob blob;
+
 void setup(){
   Serial.begin(BAUD_RATE);
   pinMode(ONBOARD_LED, OUTPUT);
@@ -62,6 +71,15 @@ void setup(){
   matrix->begin();
   matrix->setBrightness8(64);
   matrix->fillScreenRGB888(0, 0, 0);
+
+  for(int i = 0; i < BLOB_POINTS; i++) {
+    //float angle = (360 / BLOB_POINTS) * (i+1);
+    float angle = ((PI * 2) / BLOB_POINTS) * (i+1);
+    blob.x_coords[i] = random(-6, 7) + 31 + round(BLOB_RADIUS * sin(angle));
+    blob.y_coords[i] = random(-2, 7) + 15 + round(BLOB_RADIUS * cos(angle));
+    //blob.x_coords[i] = random(0, 64);
+    //blob.y_coords[i] = random(0, 32);
+  }
 }
 
 int interpolate(int from, int to, float percent) {
@@ -69,37 +87,61 @@ int interpolate(int from, int to, float percent) {
     return from + ( difference * percent );
 }
 
-void draw_bezier(int x1, int y1, int x2, int y2, int x3, int y3, float percent) {
+void draw_bezier(int x1, int y1, int x2, int y2, int x3, int y3) {
   // draw lines to p2
-  matrix->drawLine(x1, y1, x2, y2, matrix->color565(16, 16, 16));
-  matrix->drawLine(x2, y2, x3, y3, matrix->color565(16, 16, 16));
+  //matrix->drawLine(x1, y1, x2, y2, matrix->color565(16, 16, 16));
+  //matrix->drawLine(x2, y2, x3, y3, matrix->color565(16, 16, 16));
 
-  int xa = interpolate(x1, x2, percent);
-  int ya = interpolate(y1, y2, percent);
-  int xb = interpolate(x2, x3, percent);
-  int yb = interpolate(y2, y3, percent);
-  //matrix->drawLine(xa, ya, xb, yb, matrix->color565(0, 128, 0));
+  for (float percent = 0; percent < 1; percent += 0.02) {
+    int xa = interpolate(x1, x2, percent);
+    int ya = interpolate(y1, y2, percent);
+    int xb = interpolate(x2, x3, percent);
+    int yb = interpolate(y2, y3, percent);
+    //matrix->drawLine(xa, ya, xb, yb, matrix->color565(0, 128, 0));
 
-  int x = interpolate(xa, xb, percent);
-  int y = interpolate(ya, yb, percent);
+    int x = interpolate(xa, xb, percent);
+    int y = interpolate(ya, yb, percent);
 
-  matrix->drawPixel(x, y, matrix->color565(255, 255, 255));
+    matrix->drawPixel(x, y, matrix->color565(255, 80, 83));
+  }
 }
 
+
+
 void loop() {
  // matrix ->flipDMABuffer();
-  matrix->clearScreen();
- // delay(25);
-  anchor_y += 1;
-  if (anchor_y >= 32) {
-    anchor_y = 0;
+  //matrix->clearScreen();
+  matrix->fillScreenRGB888(15, 0, 10);
+  // draw grid
+
+  int h_lines = PANEL_HEIGHT / 7;
+  int v_lines = PANEL_WIDTH / 7;
+  for(int i = 0; i < PANEL_WIDTH; i++) {
+    if(i % 7 == 2) {
+      matrix->drawFastVLine(i, 0, PANEL_HEIGHT, matrix->color565(41, 17, 76));
+    }
   }
-  for (float i = 0; i < 1; i += 0.02) {
-    draw_bezier(start_x, start_y, anchor_x, anchor_y, end_x, end_y, i);
+  for(int i = 0; i <= h_lines; i++) {
+    matrix->drawFastHLine(0, 7*i + 1, PANEL_WIDTH, matrix->color565(41, 17, 76));
   }
-  matrix->drawPixel(start_x, start_y, matrix->color565(255, 0, 0));
-  matrix->drawPixel(end_x, end_y, matrix->color565(255, 0, 0));
-  matrix->drawPixel(anchor_x, anchor_y, matrix->color565(255, 0, 255));
-  delay(100);
+
+  for(int i = 0; i < BLOB_POINTS; i+=2) {
+    int end_offset = i + 2;
+    if ( end_offset >= BLOB_POINTS) {
+      end_offset = 0;
+    }
+    draw_bezier(blob.x_coords[i],
+        blob.y_coords[i],
+        blob.x_coords[i+1],
+        blob.y_coords[i+1],
+        blob.x_coords[end_offset],
+        blob.y_coords[end_offset]
+    );
+    matrix->drawPixel(blob.x_coords[i], blob.y_coords[i], matrix->color565(128, 128, 128));
+    //matrix->drawPixel(blob.x_coords[i], blob.y_coords[i], matrix->color565(0, 0, 128));
+    //matrix->drawPixel(blob.x_coords[i+1], blob.y_coords[i+1], matrix->color565(128, 0, 0));
+    //matrix->drawPixel(blob.x_coords[end_offset], blob.y_coords[end_offset], matrix->color565(0, 0, 128));
+  }
+  delay(500);
 }