From d4f820e37bbb6571af4587adb2a3b3519d76849a Mon Sep 17 00:00:00 2001
From: Mitya Selivanov <automainint@guattari.tech>
Date: Sat, 5 Oct 2024 08:28:22 +0200
Subject: Draw triangles and lines

---
 examples/graph.c   | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 examples/gravity.c | 11 ++-------
 examples/ui.c      | 18 +++++++--------
 3 files changed, 77 insertions(+), 18 deletions(-)
 create mode 100755 examples/graph.c

(limited to 'examples')

diff --git a/examples/graph.c b/examples/graph.c
new file mode 100755
index 0000000..c7b2877
--- /dev/null
+++ b/examples/graph.c
@@ -0,0 +1,66 @@
+#if 0 /*
+#/  ================================================================
+#/
+#/    graph.c
+#/
+#/  ================================================================
+#/
+#/    Self-compilation shell script
+#/
+SRC=${0##*./}
+BIN=${SRC%.*}
+gcc                                         \
+  -Wall -Wextra -Werror -pedantic           \
+  -Wno-old-style-declaration                \
+  -Wno-missing-braces                       \
+  -Wno-unused-variable                      \
+  -Wno-unused-but-set-variable              \
+  -Wno-unused-parameter                     \
+  -Wno-overlength-strings                   \
+  -O3                                       \
+  -fsanitize=undefined,address,leak -mshstk \
+  -lX11 -lm                                 \
+  -o $BIN $SRC &&                           \
+  ./$BIN $@ && rm $BIN
+exit $? # */
+#endif
+
+#include "../graphics.c"
+
+i32 main(i32 argc, c8 **argv) {
+  (void) argc;
+  (void) argv;
+
+  platform = (Platform) {
+    .title        = "Graph",
+    .frame_width  = 960,
+    .frame_height = 720,
+  };
+
+  u32 WHITE = u32_from_rgb(1.f, 1.f, 1.f);
+  u32 BLACK = u32_from_rgb(0.f, 0.f, 0.f);
+  u32 RED   = u32_from_rgb(1.f, 0.f, 0.f);
+  u32 BLUE  = u32_from_rgb(0.f, 0.f, 1.f);
+
+  p_init();
+
+  while (!platform.done) {
+    p_wait_events();
+
+    i64 x = platform.frame_width  / 2;
+    i64 y = platform.frame_height / 2;
+
+    fill_rectangle(OP_SET, WHITE, 0, 0, platform.frame_width, platform.frame_height);
+
+    fill_triangle(OP_SET, RED, 100, 100, 200, 100, 150, 200);
+
+    fill_line(OP_SET, BLUE, 100, 300, 300, 500, 30);
+
+    fill_ellipse(OP_SET, BLACK, x - 140, y - 100, 280, 200);
+
+    p_render_frame();
+  }  
+
+  p_cleanup();
+  return 0;
+}
diff --git a/examples/gravity.c b/examples/gravity.c
index 8bc45e0..246aab1 100755
--- a/examples/gravity.c
+++ b/examples/gravity.c
@@ -40,13 +40,6 @@ typedef struct {
   Entity entities[10 * 1024 * 1024];
 } World;
 
-i64 time_milliseconds() {
-  struct timespec t;
-  timespec_get(&t, TIME_UTC);
-
-  return (i64) t.tv_sec * 1000ll + (i64) t.tv_nsec / 1000000ll;
-}
-
 i32 main(i32 argc, c8 **argv) {
   (void) argc;
   (void) argv;
@@ -64,12 +57,12 @@ i32 main(i32 argc, c8 **argv) {
   srand(time(0));
 
   static World world  = {0};
-  i64          time_0 = time_milliseconds();
+  i64          time_0 = p_time();
 
   while (!platform.done) {
     p_handle_events();
 
-    i64 time_elapsed  = time_milliseconds() - time_0;
+    i64 time_elapsed  = p_time() - time_0;
     time_0           += time_elapsed;
 
     if (platform.key_pressed[BUTTON_LEFT]) {
diff --git a/examples/ui.c b/examples/ui.c
index 0847af3..4730a9d 100755
--- a/examples/ui.c
+++ b/examples/ui.c
@@ -59,12 +59,12 @@ i32 main(i32 argc, c8 **argv) {
     if (platform.cursor_x >= 40 && platform.cursor_x < 100 && platform.cursor_y >= 40 && platform.cursor_y < 100) {
       button_0_down = platform.key_down[BUTTON_LEFT];
       if (button_0_down)
-        draw_panel(OP_SET, 0xffffff, 40, 40, 60, 60);
+        fill_rectangle(OP_SET, 0xffffff, 40, 40, 60, 60);
       else
-        draw_panel(OP_SET, 0x00ff00, 40, 40, 60, 60);
+        fill_rectangle(OP_SET, 0x00ff00, 40, 40, 60, 60);
     } else {
       button_0_down = 0;
-      draw_panel(OP_SET, 0x208020, 40, 40, 60, 60);
+      fill_rectangle(OP_SET, 0x208020, 40, 40, 60, 60);
     }
 
     if (platform.cursor_x >= 40 && platform.cursor_x < 100 && platform.cursor_y >= 120 && platform.cursor_y < 180) {
@@ -72,17 +72,17 @@ i32 main(i32 argc, c8 **argv) {
       if (platform.key_pressed[BUTTON_LEFT])
         button_1_checked = !button_1_checked;
       if (button_1_down)
-        draw_panel(OP_SET, 0xffffff, 40, 120, 60, 60);
+        fill_rectangle(OP_SET, 0xffffff, 40, 120, 60, 60);
       else if (button_1_checked)
-        draw_panel(OP_SET, 0xff8080, 40, 120, 60, 60);
+        fill_rectangle(OP_SET, 0xff8080, 40, 120, 60, 60);
       else
-        draw_panel(OP_SET, 0x80ff80, 40, 120, 60, 60);
+        fill_rectangle(OP_SET, 0x80ff80, 40, 120, 60, 60);
     } else {
       button_1_down = 0;
       if (button_1_checked)
-        draw_panel(OP_SET, 0xff0000, 40, 120, 60, 60);
+        fill_rectangle(OP_SET, 0xff0000, 40, 120, 60, 60);
       else
-        draw_panel(OP_SET, 0x00ff00, 40, 120, 60, 60);
+        fill_rectangle(OP_SET, 0x00ff00, 40, 120, 60, 60);
     }
 
     i64 w  = platform.frame_width  / 2;
@@ -246,7 +246,7 @@ i32 main(i32 argc, c8 **argv) {
 
     draw_text_area(0, x0 + 8, y0 - 8, w, h, 10., 10., text_len, text);
     draw_text_area(color, x0, y0, w, h, 10., 10., text_len, text);
-    draw_text_cursor(0xffffff, x0, y0, w, h, 10., 10., cursor, selection, text_len, text);
+    draw_selection_cursor(0xffffff, x0, y0, w, h, 10., 10., cursor, selection, text_len, text);
 
     p_render_frame();
   }
-- 
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