Merge branch 'feature/the-actual-tomato-sauce' into develop

5 files changed, 146 insertions, 0 deletions

diff --git a/lib/screens/circle.js b/lib/screens/circle.js
new file mode 100644
index 0000000..d8a4d10
--- /dev/null
+++ b/lib/screens/circle.js
@@ -0,0 +1,32 @@
+'use strict';
+
+// Draws concentric circles. Each ring has its own color.
+const Circle = function (modulation, width, height, renderer) {
+  let response = [];
+
+  let circles = width > height ? height : width;
+
+  for (let i = 0; i < circles; i++) {
+    let centerX = Math.round(width / 2) + 1;
+    let centerY = Math.round(height / 2) + 1;
+
+    let red = Math.floor(Math.random() * 255);
+    let blue = Math.floor(Math.random() * 255);
+    let green = Math.floor(Math.random() * 255);
+
+    for (let j = 0; j < 180; j++) {
+      let angle =  2 * j * (Math.PI / 180);
+      let x = Math.round(centerX + Math.sin(angle) * i);
+      let y = Math.round(centerY + Math.cos(angle) * i);
+
+      if (x <= width && x > 0 && y <= height && y > 0) {
+        let position = `\x1B[${y};${x}H`; // Move cursor to y,x (CSI y;x H)
+        response += `${position}${renderer(red, blue, green)} `;
+      }
+    }
+  }
+
+  return response;
+};
+
+module.exports = Circle;
diff --git a/lib/screens/gradients.js b/lib/screens/gradients.js
new file mode 100644
index 0000000..5e63d5b
--- /dev/null
+++ b/lib/screens/gradients.js
@@ -0,0 +1,25 @@
+'use strict';
+
+// Draws moving gradient boxes.
+const Gradients = function (modulation, width, height, renderer) {
+  let response = '';
+
+  for (let i = 0; i < height; i++) {
+    for (let j = 0; j < width; j++) {
+      let red = ((modulation + i) * 255 / height) % 255;
+      let blue = ((modulation + j) * 255 / width) % 255;
+      let green = ((modulation + i * j) * 255 / (width * height)) % 255;
+
+      response = response + renderer(red, blue, green);
+      response = response + ' ';
+    }
+
+    if (i < height - 1) {
+      response = response + '\n';
+    }
+  }
+
+  return response;
+};
+
+module.exports = Gradients;
diff --git a/lib/screens/mirrors.js b/lib/screens/mirrors.js
new file mode 100644
index 0000000..d683fb6
--- /dev/null
+++ b/lib/screens/mirrors.js
@@ -0,0 +1,36 @@
+'use strict';
+
+// Draws small moving gradient boxes and repeats them.
+const Mirrors = function (modulation, width, height, renderer) {
+  let response = [];
+
+  let scale = 2 + Math.round(Math.random() * 4);
+  let scaledHeight = Math.floor(height / scale);
+  let scaledWidth = Math.floor(width / scale);
+
+  for (let i = 0; i < scaledHeight; i++) {
+    let row = [];
+    for (let j = 0; j < scaledWidth; j++) {
+      let red = ((modulation + i) * 255 / height) % 255;
+      let blue = ((modulation + j) * 255 / width) % 255;
+      let green = ((modulation + i * j) * 255 / (width * height)) % 255;
+
+      let cell = [renderer(red, blue, green), ' '];
+      row.push(cell.join(''));
+    }
+
+    let rowText = '';
+    for (let j = 0; j < scale; j++) {
+      rowText += row.reverse().join('');
+    }
+
+    for (let j = 1; j < scale; j++) {
+      response[j * i] = rowText;
+      response[(height - 1 - (j * i))] = rowText;
+    }
+  }
+
+  return response.join('\n');
+};
+
+module.exports = Mirrors;
diff --git a/lib/screens/random.js b/lib/screens/random.js
new file mode 100644
index 0000000..6ac706f
--- /dev/null
+++ b/lib/screens/random.js
@@ -0,0 +1,25 @@
+'use strict';
+
+// random colors
+const Random = function (modulation, width, height, renderer) {
+  let response = '';
+
+  for (let i = 0; i < height; i++) {
+    for (let j = 0; j < width; j++) {
+      let red = Math.floor(Math.random() * 255);
+      let blue = Math.floor(Math.random() * 255);
+      let green = Math.floor(Math.random() * 255);
+
+      response = response + renderer(red, blue, green);
+      response = response + ' ';
+    }
+
+    if (i < height - 1) {
+      response = response + '\n';
+    }
+  }
+
+  return response;
+};
+
+module.exports = Random;
diff --git a/lib/screens/sprinkles.js b/lib/screens/sprinkles.js
new file mode 100644
index 0000000..446f46e
--- /dev/null
+++ b/lib/screens/sprinkles.js
@@ -0,0 +1,28 @@
+'use strict';
+
+// Places random sprinkles in the screen each frame. Same color per
+// frame.
+const Sprinkles = function (modulation, width, height, renderer) {
+  let response = '';
+
+  let maxSprinkleCount = (width * height) / 2;
+  let minSprinkleCount = (width * height) / 8;
+  let sprinkleCount = Math.round(Math.random() * (maxSprinkleCount - minSprinkleCount)) + minSprinkleCount;
+
+  let red = Math.floor(Math.random() * 255);
+  let blue = Math.floor(Math.random() * 255);
+  let green = Math.floor(Math.random() * 255);
+
+  for (let i = 0; i < sprinkleCount; i++) {
+    let x = Math.round(Math.random() * (width - 1)) + 1;
+    let y = Math.round(Math.random() * (height - 1)) + 1;
+
+    let position = `\x1B[${y};${x}H`; // Move cursor to y,x (CSI y;x H)
+
+    response += `${position}${renderer(red, blue, green)} `;
+  }
+
+  return response;
+};
+
+module.exports = Sprinkles;