Lesson 01: Complete task setup

1 files changed, 160 insertions, 11 deletions

diff --git a/src/lesson01.cpp b/src/lesson01.cpp
index 3315458..1e35335 100644
--- a/src/lesson01.cpp
+++ b/src/lesson01.cpp
@@ -7,34 +7,183 @@
 //============================================================================
 
 #include <cstdio>
+#include <cmath>
+#include <string>
 
 /**
  * Lesson 01
  *
- * Applications of a C++ function
+ * Application of C++ functions rendering geometric Objects using ASCII-Art
  */
 
 /**
+ * Pyramid w/ base_len == 4
+ *    XXXX
+ *     XX
+ *
  * Pyramid w/ base_len == 5
- *      X
- *     XXX
  *    XXXXX
+ *     XXX
+ *      X
+ */
+void pyramid_down(const int base_len, const int dx=0, const bool show_title=true) {
+    if( show_title ) {
+        printf("\nPyramid(down, l %d, dx %d)\n", base_len, dx);
+    }
+}
+
+/**
+ * Pyramid w/ base_len == 4
+ *     XX
+ *    XXXX
  *
  * Pyramid w/ base_len == 5
+ *      X
+ *     XXX
+ *    XXXXX
+ */
+void pyramid_up(const int base_len, const int dx=0, const bool show_title=true) {
+    if( show_title ) {
+        printf("\nPyramid(up, l %d, dx %d)\n", base_len, dx);
+    }
+}
+
+/**
+ * Salino w/ base_len == 4
  *     XX
  *    XXXX
+ *     XX
  *
- * @param base_len
+ * Salino w/ base_len == 5
+ *      X
+ *     XXX
+ *    XXXXX
+ *     XXX
+ *      X
+ */
+void salino(const int base_len, const int dx=0, const bool show_title=true) {
+    if( show_title ) {
+        printf("\nSalino(l %d, dx %d)\n", base_len, dx);
+    }
+}
+
+/**
+ * Disk rendering.
+ *
+ * Disk1(r 1.00, dx 4, sx 1.00)
+ ```
+    XX
+    XX
+ ```
+ * Disk1(r 2.00, dx 3, sx 1.00)
+ ```
+    XX
+   XXXX
+   XXXX
+    XX
+ ```
+
+ * Disk1(r 3.00, dx 2, sx 1.00)
+ ```
+   XXXX
+  XXXXXX
+  XXXXXX
+  XXXXXX
+  XXXXXX
+   XXXX
+ ```
+
+ * Disk1(r 3.00, dx 2, sx 2.00)
+     ```
+    XXXXXXX
+  XXXXXXXXXXX
+  XXXXXXXXXXX
+  XXXXXXXXXXX
+  XXXXXXXXXXX
+    XXXXXXX
+ ```
  */
-void pyramid(const int base_len) {
-    printf(" "); // space
-    printf("X"); // X
-    printf("\n"); // new line
-    (void) base_len;
+void disk_1(const float radius, const int dx=0, const float sx=1.0, const bool show_title=true) {
+    if( show_title ) {
+        printf("\nDisk1(r %.2f, dx %d, sx %.2f)\n", radius, dx, sx);
+    }
+}
+
+/**
+ * Antialiased (AA) disk rendering using ASCII-Art alike brightness characters.
+ *
+ * Disk2(r 1.00, dx 4, sx 1.00, aa_seam 1.00)
+ ```
+    --
+    --
+ ```
+
+ * Disk2(r 2.00, dx 3, sx 1.00, aa_seam 1.00)
+ ```
+    ++
+   +##+
+   +##+
+    ++
+ ```
+
+ * Disk2(r 3.00, dx 2, sx 1.00, aa_seam 1.00)
+ ```
+   .++.
+  .####.
+  +####+
+  +####+
+  .####.
+   .++.
+ ```
+
+ * Disk2(r 3.00, dx 2, sx 2.00, aa_seam 1.00)
+ ```
+    .-+++-.
+  .+#######+.
+  +#########+
+  +#########+
+  .+#######+.
+    .-+++-.
+ ```
+ */
+void disk_2(const float radius, const int dx=0, const float sx=1.0, const float aa_seam_=1.0, const bool show_title=true) {
+    const float aa_seam = std::max<float>(1.0, aa_seam_);
+    if( show_title ) {
+        printf("\nDisk2(r %.2f, dx %d, sx %.2f, aa_seam %.2f)\n", radius, dx, sx, aa_seam);
+    }
 }
 
 int main(int argc, const char* argv[]) {
-    pyramid(4);
-    pyramid(5);
+    printf("\nPyramids base_len 4\n");
+    pyramid_up(4);
+    pyramid_down(4);
+    salino(4);
+
+    printf("\nPyramids base_len 5\n");
+    pyramid_up(5);
+    pyramid_down(5);
+    salino(5);
+
+    printf("\nDisks radius 1, scale-x 1\n");
+    disk_1(1, 1);
+    disk_1(2, 1);
+    disk_2(1, 1);
+
+    {
+        const int max_size = 5;
+
+        printf("\nDisks radius [1..5], sx 1.0\n");
+        for(int i=1; i<=max_size; ++i) {
+            disk_1(i, max_size-i, 1.0);
+            disk_2(i, max_size-i, 1.0);
+        }
+
+        printf("\nDisks radius [1..5], sx 1.5\n");
+        for(int i=1; i<=max_size; ++i) {
+            disk_1(i, max_size-i, 2);
+            disk_2(i, max_size-i, 2);
+        }
+    }
+
     return 0;
 }