Nivel TALAN

source/A4B1/CMakeLists.txt

@@ -1,36 +1,8 @@
-# Disable raylib examples/games and include FetchContent
-set(BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
-set(BUILD_GAMES OFF CACHE BOOL "" FORCE)
-include(FetchContent)
+find_package(PkgConfig REQUIRED)
 
-# Declare and make raylib available
-FetchContent_Declare(
-    raylib
-    GIT_REPOSITORY "https://github.com/raysan5/raylib.git"
-    GIT_TAG        "master"
-    GIT_PROGRESS   TRUE
+pkg_check_modules(RAYLIB REQUIRED IMPORTED_TARGET raylib)
+
+add_exe_module(
+    A4B1
+    DEPENDS PkgConfig::RAYLIB
 )
-
-# 2. Descargar Pugixml (Lector de XML/SVG)
-FetchContent_Declare(
-    pugixml
-    GIT_REPOSITORY "https://github.com/zeux/pugixml.git"
-    GIT_TAG        "v1.14" # Versión estable
-    GIT_PROGRESS   TRUE
-)
-
-# 1. Save the local PLATFORM variable
-set(ORIGINAL_PLATFORM "${PLATFORM}")
-
-# 2. Override the local variable to "Desktop" (This shadows the cache and hides "linux" from raylib)
-set(PLATFORM "Desktop")
-
-# 3. Configure raylib
-FetchContent_MakeAvailable(raylib pugixml)
-
-# 4. Restore your project's local PLATFORM variable back to "linux"
-set(PLATFORM "${ORIGINAL_PLATFORM}")
-
-
-add_exe_module(pacman OUTPUT_NAME "Pacman")
-target_link_libraries(pacman PRIVATE raylib pugixml)

source/A4B1/enemy.cpp

@@ -0,0 +1,415 @@
+#include "raylib.h"
+#include <cmath>
+
+extern Vector3 playerPosition;
+extern bool IsSolidAt(Vector3 position, float radius);
+
+const int NPC_COUNT = 12;
+
+Vector3 enemyPosition[NPC_COUNT] =
+{
+	{ -72.0f, 1.0f, -72.0f },
+	{  72.0f, 1.0f, -72.0f },
+	{ -72.0f, 1.0f,  72.0f },
+	{  72.0f, 1.0f,  72.0f },
+
+	{ -48.0f, 1.0f, -36.0f },
+	{  48.0f, 1.0f, -36.0f },
+	{ -48.0f, 1.0f,  36.0f },
+	{  48.0f, 1.0f,  36.0f },
+
+	{ -28.0f, 1.0f, -68.0f },
+	{  28.0f, 1.0f, -68.0f },
+	{ -28.0f, 1.0f,  68.0f },
+	{  28.0f, 1.0f,  68.0f }
+};
+
+float enemyWalkTime[NPC_COUNT] = {};
+float enemyStunTime[NPC_COUNT] = {};
+float enemySpin[NPC_COUNT] = {};
+
+const float enemySpeed = 2.4f;
+const float enemyStunDuration = 2.5f;
+
+bool enemyMoving[NPC_COUNT] = {};
+
+void MoveEnemyWithCollision(
+	int index,
+	float moveX,
+	float moveZ
+)
+{
+	Vector3 nextX = enemyPosition[index];
+
+	nextX.x += moveX;
+
+	if (!IsSolidAt(nextX, 0.45f))
+		enemyPosition[index].x = nextX.x;
+
+	Vector3 nextZ = enemyPosition[index];
+
+	nextZ.z += moveZ;
+
+	if (!IsSolidAt(nextZ, 0.45f))
+		enemyPosition[index].z = nextZ.z;
+}
+
+void UpdateEnemy(float deltaTime)
+{
+	for (int i = 0; i < NPC_COUNT; i++)
+	{
+		float dx =
+		playerPosition.x -
+		enemyPosition[i].x;
+
+		float dz =
+		playerPosition.z -
+		enemyPosition[i].z;
+
+		float distance =
+		std::sqrt(
+			dx * dx +
+			dz * dz
+		);
+
+		// =========================================
+		// MAREADO
+		// =========================================
+
+		if (enemyStunTime[i] > 0.0f)
+		{
+			enemyStunTime[i] -= deltaTime;
+			enemySpin[i] += deltaTime * 18.0f;
+
+			enemyMoving[i] = false;
+
+			if (enemyStunTime[i] < 0.0f)
+				enemyStunTime[i] = 0.0f;
+
+			continue;
+		}
+
+		// =========================================
+		// EMPUJAR JUGADOR
+		// =========================================
+
+		if (distance > 0.001f &&
+			distance < 1.5f)
+		{
+			float pushX =
+			(dx / distance) *
+			10.0f *
+			deltaTime;
+
+			float pushZ =
+			(dz / distance) *
+			10.0f *
+			deltaTime;
+
+			Vector3 next = playerPosition;
+
+			next.x += pushX;
+			next.z += pushZ;
+
+			if (!IsSolidAt(next, 0.45f))
+				playerPosition = next;
+		}
+
+		// =========================================
+		// SEGUIR JUGADOR
+		// =========================================
+
+		if (distance > 1.8f)
+		{
+			dx /= distance;
+			dz /= distance;
+
+			MoveEnemyWithCollision(
+				i,
+				dx * enemySpeed * deltaTime,
+				dz * enemySpeed * deltaTime
+			);
+
+			enemyWalkTime[i] +=
+			deltaTime * 9.0f;
+
+			enemyMoving[i] = true;
+		}
+		else
+		{
+			enemyMoving[i] = false;
+			enemyWalkTime[i] = 0.0f;
+		}
+	}
+
+	// =========================================
+	// CLICK DERECHO
+	// =========================================
+
+	if (IsMouseButtonPressed(MOUSE_BUTTON_RIGHT))
+	{
+		for (int i = 0; i < NPC_COUNT; i++)
+		{
+			float dx =
+			enemyPosition[i].x -
+			playerPosition.x;
+
+			float dz =
+			enemyPosition[i].z -
+			playerPosition.z;
+
+			float distance =
+			std::sqrt(
+				dx * dx +
+				dz * dz
+			);
+
+			if (distance < 4.0f &&
+				distance > 0.001f)
+			{
+				dx /= distance;
+				dz /= distance;
+
+				MoveEnemyWithCollision(
+					i,
+					dx * 3.5f,
+					dz * 3.5f
+				);
+
+				enemyStunTime[i] =
+				enemyStunDuration;
+
+				enemySpin[i] = 0.0f;
+				enemyWalkTime[i] = 0.0f;
+			}
+		}
+	}
+}
+
+void TeleportEnemyNearPlayer(
+	int index,
+	float yaw
+)
+{
+	if (index < 0 ||
+		index >= NPC_COUNT)
+		return;
+
+	// =========================================
+	// CONSERVAR LA DISTANCIA ACTUAL
+	// =========================================
+
+	float dx =
+	enemyPosition[index].x -
+	playerPosition.x;
+
+	float dz =
+	enemyPosition[index].z -
+	playerPosition.z;
+
+	float oldDistance =
+	std::sqrt(
+		dx * dx +
+		dz * dz
+	);
+
+	if (oldDistance < 3.0f)
+		oldDistance = 3.0f;
+
+	// =========================================
+	// BUSCAR OTRA DIRECCIÓN
+	// =========================================
+
+	float baseAngle =
+	std::atan2(
+		dz,
+		dx
+	);
+
+	for (int attempt = 0; attempt < 16; attempt++)
+	{
+		float angle =
+		baseAngle +
+		PI +
+		attempt * 0.4f;
+
+		Vector3 newPosition =
+		{
+			playerPosition.x +
+			std::cos(angle) * oldDistance,
+
+			1.0f,
+
+			playerPosition.z +
+			std::sin(angle) * oldDistance
+		};
+
+		if (!IsSolidAt(newPosition, 0.45f))
+		{
+			enemyPosition[index] =
+			newPosition;
+
+			enemyStunTime[index] = 0.0f;
+			enemySpin[index] = 0.0f;
+			enemyWalkTime[index] = 0.0f;
+
+			return;
+		}
+	}
+}
+
+int CheckEnemyHit(Vector3 bulletPosition)
+{
+	for (int i = 0; i < NPC_COUNT; i++)
+	{
+		float hitX =
+		bulletPosition.x -
+		enemyPosition[i].x;
+
+		float hitY =
+		bulletPosition.y -
+		1.2f;
+
+		float hitZ =
+		bulletPosition.z -
+		enemyPosition[i].z;
+
+		float distance =
+		std::sqrt(
+			hitX * hitX +
+			hitY * hitY +
+			hitZ * hitZ
+		);
+
+		if (distance < 0.8f)
+			return i;
+	}
+
+	return -1;
+}
+
+void DrawEnemy()
+{
+	for (int i = 0; i < NPC_COUNT; i++)
+	{
+		float legMove = 0.0f;
+		float armMove = 0.0f;
+
+		if (enemyMoving[i])
+		{
+			legMove =
+			std::sin(enemyWalkTime[i]) *
+			0.18f;
+
+			armMove =
+			std::sin(enemyWalkTime[i]) *
+			0.25f;
+		}
+
+		float spinX = 0.0f;
+		float spinZ = 0.0f;
+
+		if (enemyStunTime[i] > 0.0f)
+		{
+			spinX =
+			std::sin(enemySpin[i]) *
+			0.25f;
+
+			spinZ =
+			std::cos(enemySpin[i]) *
+			0.25f;
+		}
+
+		DrawCube(
+			{
+				enemyPosition[i].x -
+				0.22f +
+				spinX,
+
+				0.45f,
+
+				enemyPosition[i].z +
+				legMove +
+				spinZ
+			},
+		   0.25f,
+		   0.9f,
+		   0.25f,
+		   DARKGRAY
+		);
+
+		DrawCube(
+			{
+				enemyPosition[i].x +
+				0.22f -
+				spinX,
+
+				0.45f,
+
+				enemyPosition[i].z -
+				legMove -
+				spinZ
+			},
+		   0.25f,
+		   0.9f,
+		   0.25f,
+		   DARKGRAY
+		);
+
+		DrawCube(
+			{
+				enemyPosition[i].x,
+				1.25f,
+				enemyPosition[i].z
+			},
+		   0.8f,
+		   1.0f,
+		   0.45f,
+		   BLUE
+		);
+
+		DrawSphere(
+			{
+				enemyPosition[i].x + spinX,
+				2.05f,
+				enemyPosition[i].z + spinZ
+			},
+			 0.38f,
+			 BEIGE
+		);
+
+		DrawCube(
+			{
+				enemyPosition[i].x -
+				0.55f +
+				spinX,
+
+				1.25f + armMove,
+
+				enemyPosition[i].z +
+				spinZ
+			},
+		   0.18f,
+		   0.75f,
+		   0.18f,
+		   BLUE
+		);
+
+		DrawCube(
+			{
+				enemyPosition[i].x +
+				0.55f -
+				spinX,
+
+				1.25f - armMove,
+
+				enemyPosition[i].z -
+				spinZ
+			},
+		   0.18f,
+		   0.75f,
+		   0.18f,
+		   BLUE
+		);
+	}
+}

source/A4B1/game.cpp

@@ -0,0 +1,457 @@
+#include "raylib.h"
+#include <cmath>
+#include <vector>
+#include <random>
+
+struct Wall
+{
+	Vector3 position;
+	Vector3 size;
+};
+
+struct Furniture
+{
+	Vector3 position;
+	Vector3 size;
+	int type;
+};
+
+static const int MAZE_W = 41;
+static const int MAZE_H = 41;
+static const float CELL = 4.0f;
+
+static bool maze[MAZE_H][MAZE_W];
+static std::vector<Wall> walls;
+static std::vector<Furniture> furniture;
+
+extern Vector3 playerPosition;
+extern Camera3D GetPlayerCamera();
+
+extern void UpdatePlayer(float deltaTime);
+extern void UpdateEnemy(float deltaTime);
+extern void UpdateWeapons(float deltaTime);
+
+extern void DrawEnemy();
+extern void DrawBullets();
+extern void DrawPlayerWeapon();
+
+bool IsSolidAt(Vector3 position, float radius)
+{
+	for (const Wall& wall : walls)
+	{
+		if (position.x >= wall.position.x - wall.size.x / 2.0f - radius &&
+			position.x <= wall.position.x + wall.size.x / 2.0f + radius &&
+			position.z >= wall.position.z - wall.size.z / 2.0f - radius &&
+			position.z <= wall.position.z + wall.size.z / 2.0f + radius)
+		{
+			return true;
+		}
+	}
+
+	for (const Furniture& object : furniture)
+	{
+		if (position.x >= object.position.x - object.size.x / 2.0f - radius &&
+			position.x <= object.position.x + object.size.x / 2.0f + radius &&
+			position.z >= object.position.z - object.size.z / 2.0f - radius &&
+			position.z <= object.position.z + object.size.z / 2.0f + radius)
+		{
+			return true;
+		}
+	}
+
+	return false;
+}
+
+static Vector3 CellToWorld(int x, int z)
+{
+	return {
+		(x - MAZE_W / 2) * CELL,
+		0.0f,
+		(z - MAZE_H / 2) * CELL
+	};
+}
+
+static void GenerateMaze()
+{
+	for (int z = 0; z < MAZE_H; z++)
+	{
+		for (int x = 0; x < MAZE_W; x++)
+		{
+			maze[z][x] = true;
+		}
+	}
+
+	std::vector<Vector2> stack;
+	stack.push_back({1, 1});
+	maze[1][1] = false;
+
+	std::mt19937 rng(12345);
+
+	const int dirs[4][2] =
+	{
+		{ 2, 0 },
+		{-2, 0 },
+		{ 0, 2 },
+		{ 0,-2 }
+	};
+
+	while (!stack.empty())
+	{
+		Vector2 current = stack.back();
+
+		std::vector<int> available;
+
+		for (int i = 0; i < 4; i++)
+		{
+			int nx = (int)current.x + dirs[i][0];
+			int nz = (int)current.y + dirs[i][1];
+
+			if (nx > 0 && nx < MAZE_W - 1 &&
+				nz > 0 && nz < MAZE_H - 1 &&
+				maze[nz][nx])
+			{
+				available.push_back(i);
+			}
+		}
+
+		if (available.empty())
+		{
+			stack.pop_back();
+			continue;
+		}
+
+		int d = available[rng() % available.size()];
+
+		int nx = (int)current.x + dirs[d][0];
+		int nz = (int)current.y + dirs[d][1];
+
+		maze[((int)current.y + nz) / 2]
+		[((int)current.x + nx) / 2] = false;
+
+		maze[nz][nx] = false;
+
+		stack.push_back({(float)nx, (float)nz});
+	}
+
+	for (int z = 3; z < MAZE_H - 3; z += 6)
+	{
+		for (int x = 3; x < MAZE_W - 3; x += 6)
+		{
+			maze[z][x] = false;
+
+			if (x + 1 < MAZE_W - 1)
+				maze[z][x + 1] = false;
+
+			if (x > 1)
+				maze[z][x - 1] = false;
+
+			if (z + 1 < MAZE_H - 1)
+				maze[z + 1][x] = false;
+
+			if (z > 1)
+				maze[z - 1][x] = false;
+		}
+	}
+}
+
+static void BuildWalls()
+{
+	walls.clear();
+
+	for (int z = 0; z < MAZE_H; z++)
+	{
+		for (int x = 0; x < MAZE_W; x++)
+		{
+			if (!maze[z][x])
+				continue;
+
+			Vector3 p = CellToWorld(x, z);
+
+			walls.push_back({
+				{p.x, 1.5f, p.z},
+				{CELL, 3.0f, CELL}
+			});
+		}
+	}
+}
+
+static void GenerateFurniture()
+{
+	furniture.clear();
+
+	for (int z = 2; z < MAZE_H - 2; z++)
+	{
+		for (int x = 2; x < MAZE_W - 2; x++)
+		{
+			if (maze[z][x])
+				continue;
+
+			if ((x * 13 + z * 7) % 17 != 0)
+				continue;
+
+			if (x <= 4 && z <= 4)
+				continue;
+
+			Vector3 p = CellToWorld(x, z);
+
+			Furniture object;
+			object.type = (x * 3 + z * 5) % 5;
+
+			switch (object.type)
+			{
+				case 0:
+					object.position = {p.x, 0.8f, p.z};
+					object.size = {2.4f, 1.6f, 2.4f};
+					break;
+
+				case 1:
+					object.position = {p.x, 0.75f, p.z};
+					object.size = {1.5f, 1.5f, 1.5f};
+					break;
+
+				case 2:
+					object.position = {p.x, 1.35f, p.z};
+					object.size = {1.8f, 2.7f, 1.0f};
+					break;
+
+				case 3:
+					object.position = {p.x, 0.4f, p.z};
+					object.size = {2.5f, 0.8f, 0.8f};
+					break;
+
+				default:
+					object.position = {p.x, 0.6f, p.z};
+					object.size = {2.0f, 1.2f, 1.2f};
+					break;
+			}
+
+			if (!IsSolidAt(object.position, 0.2f))
+				furniture.push_back(object);
+		}
+	}
+}
+
+static void DrawFloor()
+{
+	for (int z = 0; z < MAZE_H; z++)
+	{
+		for (int x = 0; x < MAZE_W; x++)
+		{
+			if (maze[z][x])
+				continue;
+
+			Vector3 p = CellToWorld(x, z);
+
+			int shade = 108 + ((x * 17 + z * 11) % 9);
+
+			Color color = {
+				(unsigned char)shade,
+				(unsigned char)shade,
+				(unsigned char)(shade + 1),
+				255
+			};
+
+			DrawCube(
+				{p.x, -0.06f, p.z},
+			CELL + 0.16f,
+			0.12f,
+			CELL + 0.16f,
+			color
+			);
+		}
+	}
+}
+
+static void DrawWalls()
+{
+	for (const Wall& wall : walls)
+	{
+		DrawCube(
+			wall.position,
+		   wall.size.x,
+		   wall.size.y,
+		   wall.size.z,
+		   {52, 82, 116, 255}
+		);
+	}
+}
+
+static void DrawCeiling()
+{
+	for (int z = 0; z < MAZE_H; z++)
+	{
+		for (int x = 0; x < MAZE_W; x++)
+		{
+			if (maze[z][x])
+				continue;
+
+			Vector3 p = CellToWorld(x, z);
+
+			bool lightZone =
+			((x * 3 + z * 7) % 11 == 0);
+
+			Color ceilingColor =
+			lightZone
+			? Color{155, 155, 155, 255}
+			: Color{70, 70, 70, 255};
+
+			DrawCube(
+				{p.x, 3.12f, p.z},
+			CELL + 0.16f,
+			0.16f,
+			CELL + 0.16f,
+			ceilingColor
+			);
+
+			if (lightZone)
+			{
+				DrawCube(
+					{p.x, 3.01f, p.z},
+			 1.3f,
+			 0.04f,
+			 0.7f,
+			 RAYWHITE
+				);
+			}
+		}
+	}
+}
+
+static void DrawFurniture()
+{
+	for (const Furniture& object : furniture)
+	{
+		Color color;
+
+		switch (object.type)
+		{
+			case 0:
+				color = {75, 75, 75, 255};
+				break;
+
+			case 1:
+				color = {100, 82, 65, 255};
+				break;
+
+			case 2:
+				color = {62, 62, 68, 255};
+				break;
+
+			case 3:
+				color = {84, 70, 55, 255};
+				break;
+
+			default:
+				color = {90, 90, 90, 255};
+				break;
+		}
+
+		DrawCube(
+			object.position,
+		   object.size.x,
+		   object.size.y,
+		   object.size.z,
+		   color
+		);
+	}
+}
+
+static void DrawHUD()
+{
+	DrawRectangle(
+		0,
+		0,
+		300,
+		70,
+		{0, 0, 0, 100}
+	);
+
+	DrawText(
+		"NIVEL: TALAN-TALAN",
+		15,
+		12,
+		20,
+		RAYWHITE
+	);
+
+	DrawText(
+		"WASD  MOVER",
+		15,
+		39,
+		15,
+		LIGHTGRAY
+	);
+
+	int centerX = GetScreenWidth() / 2;
+	int centerY = GetScreenHeight() / 2;
+
+	DrawLine(
+		centerX - 8,
+		centerY,
+		centerX + 8,
+		centerY,
+		RAYWHITE
+	);
+
+	DrawLine(
+		centerX,
+		centerY - 8,
+		centerX,
+		centerY + 8,
+		RAYWHITE
+	);
+}
+
+void RunGame()
+{
+	InitWindow(
+		1366,
+		768,
+		"A4B1 - Nivel Talan-Talan"
+	);
+
+	SetTargetFPS(60);
+	DisableCursor();
+
+	GenerateMaze();
+	BuildWalls();
+	GenerateFurniture();
+
+	while (!WindowShouldClose())
+	{
+		float deltaTime = GetFrameTime();
+
+		if (IsKeyPressed(KEY_F11))
+		{
+			ToggleFullscreen();
+		}
+
+		UpdatePlayer(deltaTime);
+		UpdateEnemy(deltaTime);
+		UpdateWeapons(deltaTime);
+
+		BeginDrawing();
+
+		ClearBackground({25, 25, 28, 255});
+
+		BeginMode3D(GetPlayerCamera());
+
+		DrawFloor();
+		DrawWalls();
+		DrawCeiling();
+		DrawFurniture();
+
+		DrawEnemy();
+		DrawBullets();
+
+		EndMode3D();
+
+		DrawPlayerWeapon();
+		DrawHUD();
+
+		EndDrawing();
+	}
+
+	EnableCursor();
+	CloseWindow();
+}

source/A4B1/player.cpp

@@ -0,0 +1,242 @@
+#include "raylib.h"
+#include <cmath>
+
+extern bool IsSolidAt(Vector3 position, float radius);
+
+Vector3 playerPosition = {-76.0f, 1.0f, -76.0f};
+
+float verticalVelocity = 0.0f;
+float playerYaw = 0.0f;
+float playerPitch = 0.0f;
+
+float weaponBobTime = 0.0f;
+float weaponShootTime = 0.0f;
+
+const float moveSpeed = 7.0f;
+const float jumpForce = 9.0f;
+const float gravity = 20.0f;
+
+static const float PLAYER_RADIUS = 0.45f;
+static const float PLAYER_GROUND_Y = 1.0f;
+static const float PLAYER_HEAD_Y = 2.0f;
+static const float CEILING_Y = 3.0f;
+
+Camera3D GetPlayerCamera()
+{
+	Camera3D camera = {};
+
+	camera.position = playerPosition;
+
+	Vector3 forward =
+	{
+		cosf(playerPitch) * cosf(playerYaw),
+		sinf(playerPitch),
+		cosf(playerPitch) * sinf(playerYaw)
+	};
+
+	camera.target =
+	{
+		camera.position.x + forward.x,
+		camera.position.y + forward.y,
+		camera.position.z + forward.z
+	};
+
+	camera.up = {0.0f, 1.0f, 0.0f};
+	camera.fovy = 75.0f;
+	camera.projection = CAMERA_PERSPECTIVE;
+
+	return camera;
+}
+
+static void MovePlayer(Vector3 movement)
+{
+	// X separado de Z para poder deslizarse por las paredes.
+	Vector3 nextX = playerPosition;
+	nextX.x += movement.x;
+
+	if (!IsSolidAt(nextX, PLAYER_RADIUS))
+	{
+		playerPosition.x = nextX.x;
+	}
+
+	Vector3 nextZ = playerPosition;
+	nextZ.z += movement.z;
+
+	if (!IsSolidAt(nextZ, PLAYER_RADIUS))
+	{
+		playerPosition.z = nextZ.z;
+	}
+}
+
+void UpdatePlayer(float deltaTime)
+{
+	Vector2 mouse = GetMouseDelta();
+
+	playerYaw += mouse.x * 0.003f;
+	playerPitch -= mouse.y * 0.003f;
+
+	if (playerPitch > 1.45f)
+		playerPitch = 1.45f;
+
+	if (playerPitch < -1.45f)
+		playerPitch = -1.45f;
+
+	Vector3 movement = {0.0f, 0.0f, 0.0f};
+
+	Vector3 forward =
+	{
+		cosf(playerYaw),
+		0.0f,
+		sinf(playerYaw)
+	};
+
+	Vector3 right =
+	{
+		-sinf(playerYaw),
+		0.0f,
+		cosf(playerYaw)
+	};
+
+	if (IsKeyDown(KEY_W))
+	{
+		movement.x += forward.x;
+		movement.z += forward.z;
+	}
+
+	if (IsKeyDown(KEY_S))
+	{
+		movement.x -= forward.x;
+		movement.z -= forward.z;
+	}
+
+	if (IsKeyDown(KEY_D))
+	{
+		movement.x += right.x;
+		movement.z += right.z;
+	}
+
+	if (IsKeyDown(KEY_A))
+	{
+		movement.x -= right.x;
+		movement.z -= right.z;
+	}
+
+	float movementLength =
+	sqrtf(
+		movement.x * movement.x +
+		movement.z * movement.z
+	);
+
+	if (movementLength > 0.0f)
+	{
+		movement.x /= movementLength;
+		movement.z /= movementLength;
+
+		MovePlayer({
+			movement.x * moveSpeed * deltaTime,
+			0.0f,
+			movement.z * moveSpeed * deltaTime
+		});
+
+		weaponBobTime += deltaTime * 10.0f;
+	}
+
+	bool grounded =
+	playerPosition.y <= PLAYER_GROUND_Y + 0.001f;
+
+	if (grounded)
+	{
+		playerPosition.y = PLAYER_GROUND_Y;
+		verticalVelocity = 0.0f;
+
+		if (IsKeyPressed(KEY_SPACE))
+		{
+			verticalVelocity = jumpForce;
+		}
+	}
+
+	verticalVelocity -= gravity * deltaTime;
+
+	playerPosition.y +=
+	verticalVelocity * deltaTime;
+
+	if (playerPosition.y < PLAYER_GROUND_Y)
+	{
+		playerPosition.y = PLAYER_GROUND_Y;
+		verticalVelocity = 0.0f;
+	}
+
+	// Colisión con el techo.
+	if (playerPosition.y + PLAYER_HEAD_Y > CEILING_Y)
+	{
+		playerPosition.y =
+		CEILING_Y - PLAYER_HEAD_Y;
+
+		if (verticalVelocity > 0.0f)
+			verticalVelocity = 0.0f;
+	}
+
+	if (weaponShootTime > 0.0f)
+		weaponShootTime -= deltaTime;
+}
+
+void DrawPlayerWeapon()
+{
+	float bobX = 0.0f;
+	float bobY = 0.0f;
+
+	bobX = sinf(weaponBobTime) * 5.0f;
+	bobY = fabsf(cosf(weaponBobTime)) * 4.0f;
+
+	if (weaponShootTime > 0.0f)
+	{
+		bobX += GetRandomValue(-4, 4);
+		bobY += GetRandomValue(-5, 5);
+	}
+
+	int w = GetScreenWidth();
+	int h = GetScreenHeight();
+
+	float x = w * 0.76f + bobX;
+	float y = h * 0.68f + bobY;
+
+	DrawRectangle(
+		(int)x,
+				  (int)y,
+				  190,
+			   95,
+			   DARKGRAY
+	);
+
+	DrawRectangle(
+		(int)x + 55,
+				  (int)y - 35,
+				  80,
+			   55,
+			   GRAY
+	);
+
+	DrawRectangle(
+		(int)x + 72,
+				  (int)y - 62,
+				  45,
+			   40,
+			   BLACK
+	);
+
+	DrawRectangle(
+		(int)x + 20,
+				  (int)y + 30,
+				  45,
+			   65,
+			   BLACK
+	);
+
+	DrawRectangle(
+		(int)x + 120,
+				  (int)y + 15,
+				  65,
+			   35,
+			   BLACK
+	);
+}

source/A4B1/weapons.cpp

@@ -0,0 +1,225 @@
+#include "raylib.h"
+#include <cmath>
+#include <vector>
+
+extern Camera3D GetPlayerCamera();
+extern Vector3 playerPosition;
+extern float playerYaw;
+extern float weaponShootTime;
+
+extern int CheckEnemyHit(Vector3 bulletPosition);
+extern void TeleportEnemyNearPlayer(int index, float yaw);
+extern bool IsSolidAt(Vector3 position, float radius);
+
+struct Bullet
+{
+	Vector3 position;
+	Vector3 direction;
+	float speed;
+	bool active;
+};
+
+static const int MAX_BULLETS = 100;
+
+static Bullet bullets[MAX_BULLETS];
+
+static Vector3 GetForward()
+{
+	Vector3 forward =
+	{
+		cosf(playerYaw),
+		0.0f,
+		sinf(playerYaw)
+	};
+
+	return forward;
+}
+
+static void SpawnBullet(
+	Vector3 start,
+	Vector3 direction
+)
+{
+	for (int i = 0; i < MAX_BULLETS; i++)
+	{
+		if (!bullets[i].active)
+		{
+			bullets[i].position = start;
+			bullets[i].direction = direction;
+			bullets[i].speed = 35.0f;
+			bullets[i].active = true;
+			return;
+		}
+	}
+}
+
+void UpdateWeapons(float deltaTime)
+{
+	if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT))
+	{
+		Camera3D camera = GetPlayerCamera();
+
+		Vector3 forward =
+		{
+			camera.target.x - camera.position.x,
+			camera.target.y - camera.position.y,
+			camera.target.z - camera.position.z
+		};
+
+		float length =
+		sqrtf(
+			forward.x * forward.x +
+				forward.y * forward.y +
+					forward.z * forward.z
+		);
+
+		if (length > 0.001f)
+		{
+			forward.x /= length;
+			forward.y /= length;
+			forward.z /= length;
+		}
+
+		Vector3 right =
+		{
+			-sinf(playerYaw),
+			0.0f,
+			cosf(playerYaw)
+		};
+
+		Vector3 start =
+		{
+			camera.position.x + forward.x * 0.7f,
+			camera.position.y + forward.y * 0.7f,
+			camera.position.z + forward.z * 0.7f
+		};
+
+		const float spread = 0.07f;
+
+		SpawnBullet(
+			start,
+			{
+				forward.x,
+					forward.y,
+						forward.z
+			}
+		);
+
+		SpawnBullet(
+			start,
+			{
+				forward.x + right.x * spread,
+					forward.y,
+						forward.z + right.z * spread
+			}
+		);
+
+		SpawnBullet(
+			start,
+			{
+				forward.x - right.x * spread,
+					forward.y,
+						forward.z - right.z * spread
+			}
+		);
+
+		SpawnBullet(
+			start,
+			{
+				forward.x + right.x * spread * 2.0f,
+					forward.y,
+						forward.z + right.z * spread * 2.0f
+			}
+		);
+
+		SpawnBullet(
+			start,
+			{
+				forward.x - right.x * spread * 2.0f,
+					forward.y,
+						forward.z - right.z * spread * 2.0f
+			}
+		);
+
+		weaponShootTime = 0.12f;
+	}
+
+	for (int i = 0; i < MAX_BULLETS; i++)
+	{
+		if (!bullets[i].active)
+			continue;
+
+		Vector3 movement =
+		{
+			bullets[i].direction.x *
+			bullets[i].speed * deltaTime,
+
+			bullets[i].direction.y *
+			bullets[i].speed * deltaTime,
+
+			bullets[i].direction.z *
+			bullets[i].speed * deltaTime
+		};
+
+		Vector3 nextPosition =
+		{
+			bullets[i].position.x + movement.x,
+			bullets[i].position.y + movement.y,
+			bullets[i].position.z + movement.z
+		};
+
+		// Las balas chocan con paredes y muebles.
+		if (IsSolidAt(nextPosition, 0.08f))
+		{
+			bullets[i].active = false;
+			continue;
+		}
+
+		bullets[i].position = nextPosition;
+
+		int hitNPC =
+		CheckEnemyHit(bullets[i].position);
+
+		if (hitNPC >= 0)
+		{
+			TeleportEnemyNearPlayer(
+				hitNPC,
+				playerYaw
+			);
+
+			bullets[i].active = false;
+			continue;
+		}
+
+		float dx =
+		bullets[i].position.x -
+		playerPosition.x;
+
+		float dz =
+		bullets[i].position.z -
+		playerPosition.z;
+
+		float distance =
+		sqrtf(dx * dx + dz * dz);
+
+		if (distance > 200.0f)
+		{
+			bullets[i].active = false;
+		}
+	}
+}
+
+void DrawBullets()
+{
+	for (int i = 0; i < MAX_BULLETS; i++)
+	{
+		if (!bullets[i].active)
+			continue;
+
+		DrawSphere(
+			bullets[i].position,
+			 0.10f,
+			 YELLOW
+		);
+	}
+}