Input test.

src/display/color.h

@@ -0,0 +1,22 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusk.h"
+
+typedef enum {
+  COLOR_BLACK,
+  COLOR_RED,
+  COLOR_GREEN,
+  COLOR_YELLOW,
+  COLOR_BLUE,
+  COLOR_MAGENTA,
+  COLOR_CYAN,
+  COLOR_WHITE,
+} color_t;
+
+#define COLOR_COUNT (COLOR_WHITE + 1)

src/display/render.c

@@ -5,20 +5,64 @@
  * https://opensource.org/licenses/MIT
  */
 
+#include "assert/assert.h"
 #include "render.h"
 #include "term.h"
+#include "rpg/entity/entity.h"
 
 void renderInit() {
   termInit();
 }
 
 void renderUpdate() {
+  char_t c;
+  color_t color, colorCurrent;
+  entity_t *ent;
+
   termUpdate();
   termClear();
 
+  colorCurrent = COLOR_WHITE;
+  termPushColor(colorCurrent);
+
   for(int32_t y = 0; y < TERM.height; y++) {
     for(int32_t x = 0; x < TERM.width; x++) {
-      char_t c = ' '; // Replace with actual rendering logic
+      color = COLOR_WHITE;
+      c = ' ';
+
+      ent = entityGetAt(x, y);
+      if(ent) {
+        color = COLOR_RED;
+        
+        switch(ent->dir) {
+          case ENTITY_DIR_UP:
+            c = '^';
+            color = COLOR_GREEN;
+            break;
+          case ENTITY_DIR_DOWN:
+            c = 'v';
+            color = COLOR_RED;
+            break;
+          case ENTITY_DIR_LEFT:
+            c = '<';
+            color = COLOR_YELLOW;
+            break;
+          case ENTITY_DIR_RIGHT:
+            c = '>';
+            color = COLOR_BLUE;
+            break;
+          default:
+            assertUnreachable("Invalid entity direction");
+            break;
+        }
+      }
+
+      if(c == ' ') {
+        termPushChar(' ');
+        continue;
+      }
+
+      if(color != colorCurrent) termPushColor((colorCurrent = color));
       termPushChar(c);
     }
   }

src/display/render.h

@@ -8,9 +8,6 @@
 #pragma once
 #include "dusk.h"
 
-extern int32_t renderColumnCount;
-extern int32_t renderRowCount;
-
 /**
  * Init the render system.
  */

src/display/term.c

@@ -5,12 +5,24 @@
  * https://opensource.org/licenses/MIT
  */
 
+#include "assert/assert.h"
 #include "term.h"
 #include "util/memory.h"
 #include <sys/ioctl.h>
 
 term_t TERM;
 
+const char_t* TERM_COLORS[COLOR_COUNT] = {
+  [COLOR_BLACK]   = "\033[30m",
+  [COLOR_RED]     = "\033[31m",
+  [COLOR_GREEN]   = "\033[32m",
+  [COLOR_YELLOW]  = "\033[33m",
+  [COLOR_BLUE]    = "\033[34m",
+  [COLOR_MAGENTA] = "\033[35m",
+  [COLOR_CYAN]    = "\033[36m",
+  [COLOR_WHITE]   = "\033[37m"
+};
+
 void termInit() {
   memoryZero(&TERM, sizeof(term_t));
 
@@ -33,6 +45,11 @@ void termClear() {
   printf("\033[2J\033[H");
 }
 
+void termPushColor(const color_t color) {
+  assertTrue(color < COLOR_COUNT, "Invalid color index");
+  printf("%s", TERM_COLORS[color]);
+}
+
 void termPushChar(const char_t c) {
   putchar(c);
 }

src/display/term.h

@@ -7,6 +7,7 @@
 
 #pragma once
 #include "dusk.h"
+#include "display/color.h"
 
 typedef struct {
   int32_t width;
@@ -15,6 +16,8 @@ typedef struct {
 
 extern term_t TERM;
 
+extern const char_t* TERM_COLORS[COLOR_COUNT];
+
 /**
  * Initialize the terminal system.
  */
@@ -30,6 +33,8 @@ void termUpdate();
  */
 void termClear();
 
+void termPushColor(const color_t color);
+
 /**
  * Push a character to the terminal output buffer.
  *