19 files changed, 490 insertions, 2 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d0f185b..6f9e256 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,10 +4,11 @@ cmake_minimum_required(VERSION 3.11)
 project(KillaFacsista VERSION 1.0)
 
 set(C_STANDARD 99)
+set(C_STANDARD_REQUIRED ON)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # Add source files.
-file(GLOB SRC_FILES src/*.c)
+file(GLOB SRC_FILES src/*.c src/entities/*.c)
 
 add_executable(${PROJECT_NAME} ${SRC_FILES})
 
diff --git a/assets/antifaShip.mtl b/assets/antifaShip.mtl
new file mode 100644
index 0000000..dc779b0
--- /dev/null
+++ b/assets/antifaShip.mtl
@@ -0,0 +1,12 @@
+# Blender 3.5.1 MTL File: 'antifaShip2.blend'
+# www.blender.org
+
+newmtl Material
+Ns 250.000000
+Ka 1.000000 1.000000 1.000000
+Kd 0.800000 0.800000 0.800000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
diff --git a/assets/antifaShip.obj b/assets/antifaShip.obj
new file mode 100644
index 0000000..27320a0
--- /dev/null
+++ b/assets/antifaShip.obj
@@ -0,0 +1,101 @@
+# Blender 3.5.1
+# www.blender.org
+mtllib antifaShip.mtl
+o Cube
+v -1.000000 0.482858 1.000000
+v -3.000000 0.482858 -0.999999
+v -3.000000 -1.000000 -0.999999
+v 1.000000 0.482858 1.000000
+v 3.000000 0.482858 -1.000001
+v 3.000000 -1.000000 -1.000001
+v 2.321289 -0.773763 -1.300001
+v 2.321289 0.256621 -1.300001
+v -2.321290 0.256621 -1.299999
+v -2.321290 -0.773763 -1.299999
+v 2.000001 -1.000000 3.499999
+v -1.999999 -1.000000 3.500001
+v 0.000003 -1.000000 8.600000
+v 0.000000 -1.000000 1.000000
+vn -0.0000 1.0000 -0.0000
+vn -0.4043 -0.0000 -0.9146
+vn -0.0000 -0.0000 -1.0000
+vn -0.0000 -0.7984 -0.6021
+vn -0.0000 0.7984 -0.6021
+vn 0.4043 -0.0000 -0.9146
+vn -0.6783 0.6742 0.2923
+vn -0.6782 0.6742 0.2924
+vn -0.0000 0.9815 0.1915
+vn 0.1420 -0.9880 0.0610
+vn -0.0330 -0.9880 -0.1510
+vn -0.0000 -1.0000 -0.0000
+vn -0.6782 0.6742 0.2923
+vn 0.6782 0.6742 0.2923
+vn 0.6782 0.6742 0.2924
+vn 0.6783 0.6742 0.2923
+vn -0.4042 -0.0000 0.9147
+vn -0.4043 -0.0000 0.9146
+vn 0.1400 -0.9892 -0.0428
+vn -0.0396 -0.9892 0.1409
+vn 0.6820 0.7155 0.1516
+vn 0.0265 -0.9892 -0.1439
+vn 0.0166 -0.9892 -0.1454
+vt 0.000000 0.000000
+vt 0.625000 0.500000
+vt 0.000000 0.000000
+vt 0.625000 0.750000
+vt 0.375000 0.750000
+vt 0.000000 0.000000
+vt 0.875000 0.500000
+vt 0.000000 0.000000
+vt 0.000000 0.000000
+vt 0.875000 0.750000
+vt 0.125000 0.750000
+vt 0.000000 0.000000
+vt 0.125000 0.750000
+vt 0.375000 1.000000
+vt 0.875000 0.750000
+vt 0.625000 1.000000
+vt 0.625000 0.750000
+vt 0.375000 0.750000
+vt 0.125000 0.625000
+vt 0.000000 0.000000
+vt 0.375000 0.625000
+vt 0.000000 0.000000
+vt 0.000000 0.000000
+vt 0.062500 0.375000
+vt 0.250000 0.687500
+vt 0.000000 0.000000
+s 0
+usemtl Material
+f 2/4/1 1/2/1 4/7/1
+f 2/4/2 9/17/2 10/18/2
+f 7/14/3 10/18/3 9/17/3
+f 7/13/4 6/11/4 3/5/4
+f 9/17/5 2/4/5 5/10/5
+f 7/13/6 8/15/6 5/10/6
+f 3/6/7 1/1/8 2/3/8
+f 1/2/9 13/23/9 4/7/9
+f 2/4/1 4/7/1 5/10/1
+f 2/4/2 10/18/2 3/5/2
+f 7/14/3 9/17/3 8/16/3
+f 7/13/4 3/5/4 10/18/4
+f 9/17/5 5/10/5 8/15/5
+f 13/23/10 12/22/11 11/19/12
+f 11/19/12 12/21/12 14/25/12 6/11/12
+f 7/13/6 5/10/6 6/11/6
+f 1/1/13 12/22/13 13/23/13
+f 12/22/13 1/1/13 3/6/13
+f 11/20/14 4/8/14 13/23/14
+f 4/8/15 6/12/16 5/9/15
+f 1/2/1 4/7/1 5/10/1
+f 10/18/3 8/16/3 7/14/3
+f 7/14/17 8/16/18 6/11/18
+f 9/17/2 10/18/2 3/5/2
+f 8/16/5 9/17/5 2/4/5
+f 6/11/4 10/18/4 7/14/4
+f 3/6/19 6/11/12 14/24/12 12/22/20
+f 4/8/21 11/20/21 6/12/21
+f 14/25/12 6/11/12 11/19/12
+f 14/25/12 12/22/22 3/6/23
+f 14/26/12 11/20/12 12/22/12
+f 6/12/12 14/26/12 3/6/12
diff --git a/assets/antifaShip.ply b/assets/antifaShip.ply
new file mode 100644
index 0000000..c15ec88
--- /dev/null
+++ b/assets/antifaShip.ply
diff --git a/src/entities/antifaShip.c b/src/entities/antifaShip.c
new file mode 100644
index 0000000..2552d24
--- /dev/null
+++ b/src/entities/antifaShip.c
@@ -0,0 +1,27 @@
+#include "antifaShip.h"
+#include <raylib.h>
+
+void initAntifaShip(Entity * entity) {
+	entity->model = LoadModel("/home/nathan/Documents/KillaFacsista/assets/antifaShip.obj");
+}
+
+void closeAntifaShip(Entity * entity) {
+	UnloadModel(entity->model);
+}
+
+void updateAntifaShip(Game * game, Entity * entity, EntityId id) {
+}
+
+void drawAntifaShip(Game * game, Entity * entity, EntityId id) {
+	entityDraw(entity);
+
+	Vector3 stick = (Vector3){
+		GetGamepadAxisMovement(0, 1),
+		-GetGamepadAxisMovement(0, 0),
+		GetGamepadAxisMovement(0, 2)
+	};
+
+	stick = Vector3Scale(stick, 0.5);
+
+	entityJoystickControl(entity, stick, fabs(GetGamepadAxisMovement(0, 3) * 50.0 + 5.0));
+}
diff --git a/src/entities/antifaShip.h b/src/entities/antifaShip.h
new file mode 100644
index 0000000..15e9009
--- /dev/null
+++ b/src/entities/antifaShip.h
@@ -0,0 +1,12 @@
+#include "gameCommon.h"
+#include "entity.h"
+
+#ifndef ANTIFA_SHIP_H
+#define ANTIFA_SHIP_H
+
+void initAntifaShip(Entity * entity);
+void closeAntifaShip(Entity * entity);
+void updateAntifaShip(Game * game, Entity * entity, EntityId id);
+void drawAntifaShip(Game * game, Entity * entity, EntityId id);
+
+#endif
diff --git a/src/entity.c b/src/entity.c
new file mode 100644
index 0000000..0b6be9d
--- /dev/null
+++ b/src/entity.c
@@ -0,0 +1,87 @@
+#include "entity.h"
+#include "entities/antifaShip.h"
+
+// This fucker is used for creating entities.
+const EntityTypeInfo entityTypeInfo[ENTITY_TYPE_COUNT] = {
+	(EntityTypeInfo){initAntifaShip, closeAntifaShip, updateAntifaShip, drawAntifaShip}
+};
+
+Entity createEntity(EntityType type) {
+	EntityTypeInfo info = entityTypeInfo[type];
+
+	// Set defaults.
+	Entity entity = (Entity){
+		.type = type,
+		.position = Vector3Zero(),
+		.angularVelocity = 0,
+		.rotationAxis = Vector3Zero(),
+		.velocity = Vector3Zero(),
+		.rotation = QuaternionIdentity(),
+		.updateCb = info.updateCb,
+		.drawCb = info.drawCb,
+		.data = NULL
+	};
+
+	// Init.
+	info.initCb(&entity);
+
+	return entity;
+}
+
+void closeEntity(Entity * entity) {
+	entityTypeInfo[entity->type].closeCb(entity);
+}
+
+// Basic wireframe drawing.
+void entityDraw(Entity * entity) {
+	entity->model.transform = QuaternionToMatrix(entity->rotation);
+
+	DrawModelWires(
+		entity->model,
+		entity->position,
+		1,
+		GREEN
+	);
+}
+
+void entityUpdatePosition(Entity * entity) {
+	float t = GetFrameTime();
+
+	Vector3 velocity = (Vector3){
+		entity->velocity.x * t,
+		entity->velocity.y * t,
+		entity->velocity.z * t
+	};
+
+	entity->position = Vector3Add(entity->position, velocity);
+}
+
+void entityUpdateRotation(Entity * entity) {
+	float t = GetFrameTime();
+
+    Quaternion angularRotation = QuaternionFromAxisAngle(
+		entity->rotationAxis, 
+		entity->angularVelocity * t
+	);
+
+    entity->rotation = QuaternionMultiply(entity->rotation, angularRotation);
+}
+
+void entityJoystickControl(Entity * entity, Vector3 stick, float speed) {
+	// Set angular velocity.
+	Vector3 angularVelocity = Vector3Scale(stick, PI);
+	entity->angularVelocity = Vector3Length(angularVelocity);
+	entity->rotationAxis = stick;
+	entityUpdateRotation(entity);
+
+	// Set position.
+	Matrix m = QuaternionToMatrix(QuaternionInvert(entity->rotation));
+
+	entity->velocity = (Vector3){
+		m.m2 * speed,
+		m.m6 * speed,
+		m.m10 * speed,
+	};
+
+	entityUpdatePosition(entity);
+}
diff --git a/src/entity.h b/src/entity.h
new file mode 100644
index 0000000..0f9ec3d
--- /dev/null
+++ b/src/entity.h
@@ -0,0 +1,70 @@
+#include "gameCommon.h"
+
+#ifndef	ENTITY_H
+#define ENTITY_H
+
+enum {
+	ENTITY_NONE = -1,
+	ENTITY_ANTIFA,
+	ENTITY_SOLDATO,
+	ENTITY_CAPORALE,
+	ENTITY_SERGENTE,
+	ENTITY_MARESCIALLO,
+	ENTITY_GENERALE,
+	ENTITY_MUSSOLINI
+};
+
+#define ENTITY_TYPE_COUNT 7
+
+typedef int8_t EntityType;
+typedef int16_t EntityId; // Id in world.
+
+// Callbacks.
+typedef void (*EntityUpdateCb)(Game * game, Entity * entity, EntityId id);
+typedef void (*EntityDrawCb)(Game * game, Entity * entity, EntityId id);
+
+// This fucker is a entity.
+typedef struct Entity {
+	EntityType type;
+	Model model;
+
+	Vector3 position;
+	Vector3 velocity;
+
+	float angularVelocity;
+	Vector3 rotationAxis;
+ 
+	Quaternion rotation;
+
+	EntityUpdateCb updateCb;
+	EntityDrawCb drawCb;
+
+	// Used for whatever.
+	void * data;
+} Entity;
+
+typedef void (*EntityInitCb)(Entity * entity);
+typedef void (*EntityCloseCb)(Entity * entity);
+
+// Info for each entity type.
+typedef struct EntityTypeInfo {
+	EntityInitCb initCb;
+	EntityCloseCb closeCb;
+	EntityUpdateCb updateCb;
+	EntityDrawCb drawCb;
+} EntityTypeInfo;
+
+const extern EntityTypeInfo entityTypeInfo[ENTITY_TYPE_COUNT];
+
+// Do I need a fucking comment?
+Entity createEntity(EntityType type);
+void closeEntity(Entity * entity);
+
+// Helper functions for updating and drawing.
+void entityDraw(Entity * entity);
+void entityUpdatePosition(Entity * entity);
+void entityUpdateRotation(Entity * entity);
+
+void entityJoystickControl(Entity * entity, Vector3 stick, float speed);
+
+#endif
diff --git a/src/game.c b/src/game.c
index 89f17d6..2e966f2 100644
--- a/src/game.c
+++ b/src/game.c
@@ -1,15 +1,44 @@
 #include "game.h"
 
 void initGame(Game * game) {
+	// Window.
 	InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Killa Facsista");
+
+	// Screen id.
+	game->screenId = SCREEN_GAME;
+
+	// Camera.
+	initPlayerCamera(&game->playerCamera);
+
+	// Ship test.
+	game->ship = createEntity(ENTITY_ANTIFA);
+
+	SetTargetFPS(60);
+	//DisableCursor();
 }
 
 void closeGame(Game * game) {
+	// Close ship test.
+	closeEntity(&game->ship);
+
 	CloseWindow();
 }
 
 void updateGame(Game * game) {
 	BeginDrawing();
 
+	switch (game->screenId) {
+		case SCREEN_MAIN_MENU:
+			updateMainMenu(game);
+			break;
+		case SCREEN_GAME:
+			updateGameScreen(game);
+			break;
+		default:
+			break;
+	}
+
+	DrawFPS(5, 5);
+
 	EndDrawing();
 }
diff --git a/src/game.h b/src/game.h
index 9717c16..f875b62 100644
--- a/src/game.h
+++ b/src/game.h
@@ -1,9 +1,24 @@
 #include "gameCommon.h"
+#include "mainMenu.h"
+#include "gameScreen.h"
+#include "playerCamera.h"
+#include "entity.h"
 
 #ifndef GAME_H
 #define GAME_H
 
+typedef enum ScreenId {
+	SCREEN_MAIN_MENU,
+	SCREEN_GAME
+} ScreenId;
+
 typedef struct Game {
+	ScreenId screenId;
+	MainMenu mainMenu;
+	GameScreen gameScreen;
+	Camera3D playerCamera;
+
+	Entity ship;
 } Game;
 
 void initGame(Game * game);
diff --git a/src/gameCommon.h b/src/gameCommon.h
index b53b955..0d18d32 100644
--- a/src/gameCommon.h
+++ b/src/gameCommon.h
@@ -9,12 +9,39 @@
 
 #include <raylib.h>
 #include <raymath.h>
-#include "raylib.h"
+#include <rlgl.h>
+#include "raygui.h"
 
 #ifndef GAME_COMMON_H
 #define GAME_COMMON_H
 
+// Types be like.
+typedef struct Game Game;
+typedef struct Entity Entity;
+
 #define WINDOW_WIDTH 960
 #define WINDOW_HEIGHT 540
 
+// Bit shit.
+#define SET_BIT(b, n) (b | (0x1 << n))
+#define CLEAR_BIT(b, n) (b & ~(0x1 << n))
+#define IS_BIT_SET(b, n) ((b >> n) & 0x1)
+#define TOGGLE_BIT(b, n) (b ^ (0x1 << n))
+#define HAS_FLAG(v, f) ((v & f) == f)
+
+// Memory management.
+#define KF_MALLOC(size) malloc(size)
+#define KF_CALLOC(nmemb, size) calloc(nmemb, size)
+#define KF_REALLOC(ptr, size) realloc(ptr, size)
+#define KF_REALLOCARRAY(ptr, nmemb, size) reallocarray(ptr, nmemb, size)
+#define KF_FREE(ptr) free(ptr)
+
+#define ALLOCATION_ERROR TraceLog(LOG_ERROR, "Allocation error in %s:%d", __FILE__, __LINE__)
+
+// Errors.
+typedef enum KfError {
+	KFERROR = -1,
+	KFSUCCESS = 0
+} KfError;
+
 #endif
diff --git a/src/gameScreen.c b/src/gameScreen.c
new file mode 100644
index 0000000..c62584a
--- /dev/null
+++ b/src/gameScreen.c
@@ -0,0 +1,17 @@
+#include "gameScreen.h"
+#include "game.h"
+
+void updateGameScreen(Game * game) {
+	ClearBackground(BLACK);
+
+	// Camera.
+	updatePlayerCamera(&game->playerCamera, game);
+
+	BeginMode3D(game->playerCamera);
+
+	DrawGrid(100, 5.0);
+
+	game->ship.drawCb(game, &game->ship, 0);
+
+	EndMode3D();
+}
diff --git a/src/gameScreen.h b/src/gameScreen.h
new file mode 100644
index 0000000..8c3de89
--- /dev/null
+++ b/src/gameScreen.h
@@ -0,0 +1,12 @@
+#include "gameCommon.h"
+
+#ifndef GAME_SCREEN_H
+#define GAME_SCREEN_H
+
+// Gui stuff and shit.
+typedef struct GameScreen {
+} GameScreen;
+
+void updateGameScreen(Game * game);
+
+#endif
diff --git a/src/mainMenu.c b/src/mainMenu.c
new file mode 100644
index 0000000..10f293a
--- /dev/null
+++ b/src/mainMenu.c
@@ -0,0 +1,14 @@
+#include "mainMenu.h"
+#include "game.h"
+
+void updateMainMenu(Game * game) {
+	ClearBackground(RAYWHITE);
+
+	bool start = GuiButton(
+		(Rectangle){10, 10, 100, 50},
+		"Start"
+	);
+
+	if (start)
+		game->screenId = SCREEN_GAME;
+}
diff --git a/src/mainMenu.h b/src/mainMenu.h
new file mode 100644
index 0000000..7dd5036
--- /dev/null
+++ b/src/mainMenu.h
@@ -0,0 +1,11 @@
+#include "gameCommon.h"
+
+#ifndef MAIN_MENU_H
+#define MAIN_MENU_H
+
+typedef struct MainMenu {
+} MainMenu;
+
+void updateMainMenu(Game * game);
+
+#endif
diff --git a/src/playerCamera.c b/src/playerCamera.c
new file mode 100644
index 0000000..4b9530f
--- /dev/null
+++ b/src/playerCamera.c
@@ -0,0 +1,34 @@
+#include "playerCamera.h"
+#include "game.h"
+
+void initPlayerCamera(Camera3D * camera) {
+	*camera = (Camera3D){
+		//.position = (Vector3){15.0, 15.0, 15.0},
+		.position = (Vector3){0.0, 15.0, -15.0},
+		.target = (Vector3){0.0, 0.0, 0.0},
+		.up = (Vector3){0.0, 1.0, 0.0},
+		.fovy = 45.0,
+		.projection = CAMERA_PERSPECTIVE
+	};
+}
+
+void updatePlayerCamera(Camera3D * camera, Game * game) {
+	//UpdateCamera(camera, CAMERA_FIRST_PERSON);
+	camera->target = game->ship.position;
+
+	Matrix m = QuaternionToMatrix(QuaternionInvert(game->ship.rotation));
+	Vector3 pos = (Vector3){0.0, CAMERA_DIS/2, -CAMERA_DIS};
+
+	camera->position = (Vector3){
+		m.m0 * pos.x + m.m1 * pos.y + m.m2 * pos.z,
+		m.m4 * pos.x + m.m5 * pos.y + m.m6 * pos.z,
+		m.m8 * pos.x + m.m9 * pos.y + m.m10 * pos.z
+	};
+
+	camera->position = Vector3Add(camera->position, game->ship.position);
+	camera->up = (Vector3){
+		m.m1 + m.m2,
+		m.m5 + m.m6,
+		m.m9 + m.m10
+	};
+}
diff --git a/src/playerCamera.h b/src/playerCamera.h
new file mode 100644
index 0000000..960c30d
--- /dev/null
+++ b/src/playerCamera.h
@@ -0,0 +1,11 @@
+#include "gameCommon.h"
+
+#ifndef PLAYER_CAMERA_H
+#define PLAYER_CAMERA_H
+
+#define CAMERA_DIS 10.0
+
+void initPlayerCamera(Camera3D * camera);
+void updatePlayerCamera(Camera3D * camera, Game * game);
+
+#endif
diff --git a/src/world.c b/src/world.c
new file mode 100644
index 0000000..ea50eca
--- /dev/null
+++ b/src/world.c
@@ -0,0 +1 @@
+#include "world.h"
diff --git a/src/world.h b/src/world.h
new file mode 100644
index 0000000..379b920
--- /dev/null
+++ b/src/world.h
@@ -0,0 +1,7 @@
+#include "gameCommon.h"
+#include "entity.h"
+
+#ifndef WORLD_H
+#define WORLD_H
+
+#endif