entity, species, body parts and related

CMakeLists.txt

@@ -14,6 +14,8 @@ include_directories(include)
 
 set(SOURCES
 	src/main.c
+	src/entity/print.c
+	src/entity/init.c
 	src/disp/display.c
 	src/disp/print.c
 	src/disp/init.c

include/entity.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "species.h"
+
+struct Entity {
+	enum Species body[BODY_PARTS];
+};
+
+struct Entity entity_p_init(void);
+struct Entity entity_e_init(void);
+void entity_print_desc(struct Entity entity);

include/species.h

@@ -0,0 +1,5 @@
+#pragma once
+
+enum Species { VOID, HUMAN, SPIDER, DUCK, BABOON };
+#define BODY_PARTS 4
+enum BodyPart { HEAD, BODY, ARMS, LEGS };

src/entity/init.c

@@ -0,0 +1,25 @@
+#include "entity.h"
+
+static struct Entity entity_init(enum Species head, enum Species body,
+                                 enum Species arms, enum Species legs);
+
+struct Entity
+entity_p_init(void)
+{
+	return entity_init(HUMAN, HUMAN, HUMAN, HUMAN);
+}
+
+struct Entity
+entity_e_init(void)
+{
+	return entity_init(SPIDER, SPIDER, VOID, SPIDER);
+}
+
+static struct Entity
+entity_init(enum Species head, enum Species body, enum Species arms,
+            enum Species legs)
+{
+	return (struct Entity){
+	    .body = {head, body, arms, legs},
+	};
+}

src/entity/print.c

@@ -0,0 +1,55 @@
+#include "disp.h"
+#include "entity.h"
+
+static char *body_part_str(enum BodyPart body_part);
+static char *species_str(enum Species species);
+
+void
+entity_print_desc(struct Entity entity)
+{
+	int i;
+
+	i = -1;
+	while (++i < BODY_PARTS) {
+		disp_print(species_str(entity.body[i]));
+		disp_print(" ");
+		disp_print(body_part_str(i));
+		disp_print("\n");
+	}
+}
+
+static char *
+body_part_str(enum BodyPart body_part)
+{
+	switch (body_part) {
+	case HEAD:
+		return "head";
+	case BODY:
+		return "body";
+	case ARMS:
+		return "arms";
+	case LEGS:
+		return "legs";
+	default:
+		return "<unknown body part>";
+	}
+}
+
+static char *
+species_str(enum Species species)
+{
+	switch (species) {
+	case VOID:
+		return "no";
+	case HUMAN:
+		return "human";
+	case SPIDER:
+		return "spider";
+	case DUCK:
+		return "duck";
+	case BABOON:
+		return "baboon";
+	default:
+		return "<unknow species>";
+	}
+}

src/main.c

@@ -1,15 +1,24 @@
 #include "disp.h"
+#include "entity.h"
 #include <gint/display.h>
 #include <gint/keyboard.h>
 
 int
 main(void)
 {
+	struct Entity player;
+	struct Entity enemy;
+
 	/* init */
 	disp_init();
+	player = entity_p_init();
+	enemy = entity_e_init();
+
 	disp_print("Hello, World!\n");
 	disp_print("Draw me an unicorn!\n");
 	disp_print("<Hackcell> UwU\n");
+	entity_print_desc(player);
+	entity_print_desc(enemy);
 
 	dclear(C_WHITE);
 	disp_display();