Ghosts

src/components.h

@@ -6,6 +6,8 @@
 #include <raymath.h>
 
 class Entity{
+	protected:
+		Vector2 project_position(int direction, int distance);
 	public:
 		virtual ~Entity(){}
 		
@@ -44,7 +46,10 @@ class Pacman : public Entity{
 		void collision(Entity* with) override;
 };
 
-class Wall : public Entity {
+class PacmanWall{};
+class GhostWall{};
+
+class Wall : public Entity,public PacmanWall,public GhostWall{
 	private:
 		TextureAtlas texture;
 	public:
@@ -53,6 +58,9 @@ class Wall : public Entity {
 		void draw() const override;
 };
 
+class Door : public Entity, public PacmanWall{};
+class Portal : public Entity, public GhostWall{};
+
 class Scorepoint : public Entity {
 	private:
 		TextureAtlas texture;
@@ -61,4 +69,22 @@ class Scorepoint : public Entity {
 		void draw() const override;
 };
 
+class Ghost : public Entity {
+	private:
+		static unsigned int color_decision;
+		TextureAtlas texture;
+		const int speed = 16;
+		Color color;
+		int direction = 1;
+		Vector2 start_position;
+		void recalculate_direction();
+		void try_to_chase();
+	public:
+		Ghost();
+		void ready() override;
+		void tick() override;
+		void draw() const override;
+		void collision(Entity* with) override;
+};
+
 #endif

src/entity.cpp

@@ -1,4 +1,5 @@
 #include "components.h"
+#include "world.h"
 
 void Entity::queue_free() {
 	if (this->free_queued)
@@ -10,3 +11,10 @@ void Entity::queue_free() {
 bool Entity::get_free_flag() {
 	return this->free_queued;
 }
+
+Vector2 Entity::project_position(int direction, int distance) {
+	double angle = PI/2.0*direction;
+	Vector2 vector_direction = {(float)(cos(angle)),(float)(sin(-angle))};
+	return Vector2Add(this->position,Vector2Scale(vector_direction, (float)distance*CELL_SIZE)); 
+
+}

src/ghost.cpp

@@ -0,0 +1,88 @@
+#include "components.h"
+#include "world.h"
+#include <cstdlib>
+#include <raylib.h>
+
+unsigned int Ghost::color_decision = 0;
+
+Ghost::Ghost() {
+	this->texture = {get_world().get_atlas(),64,64,32,16};
+	if (color_decision > 3)
+		color_decision = 0;
+	switch(this->color_decision++){
+		case 0:
+			this->color = ORANGE;
+			break;
+		case 1:
+			this->color = PINK;
+			break;
+		case 2:
+			this->color = RED;
+			break;
+		case 3:
+			this->color = BLUE;
+			break;
+	}
+}
+
+void Ghost::ready() {
+	this->start_position = position;
+}
+
+void Ghost::tick() {
+	try_to_chase();
+	Vector2 check_position = project_position(direction, 1);
+
+	World& world = get_world();
+
+	if(dynamic_cast<GhostWall*>(world.grid[world.indexify_position(check_position)]) != nullptr){
+		recalculate_direction();
+		check_position = project_position(direction, 1);
+	}
+
+	position = check_position;
+}
+
+void Ghost::try_to_chase(){
+	// Todo
+}
+
+void Ghost::recalculate_direction(){
+	World& world = get_world();
+
+	switch (rand()%3) {
+		case 0:
+			direction = (direction+2)%4;
+			break;
+		case 1:
+			if(dynamic_cast<GhostWall*>(world.grid[world.indexify_position(project_position((direction+1)%4, 1))]) == nullptr){
+				direction = (direction+1)%4;
+			}
+			else if(dynamic_cast<GhostWall*>(world.grid[world.indexify_position(project_position((direction-1)%4,1))]) == nullptr){
+				direction = (direction-1)%4;
+			}
+			else{
+				direction = (direction-2)%4;
+			}
+			break;
+		case 2:
+			if(dynamic_cast<GhostWall*>(world.grid[world.indexify_position(project_position((direction-1)%4, 1))]) == nullptr){
+				direction = (direction-1)%4;
+			}
+			else if(dynamic_cast<GhostWall*>(world.grid[world.indexify_position(project_position((direction+1)%4,1))]) == nullptr){
+				direction = (direction+1)%4;
+			}
+			else{
+				direction = (direction-2)%4;
+			}
+			break;
+	}	
+}
+
+void Ghost::draw() const {
+	DrawTextureRec(this->texture.get_texture(), this->texture.rect_view(0,0,16, 16), this->position, this->color);
+}
+
+void Ghost::collision(Entity* with) {
+
+}

src/main.cpp

@@ -3,7 +3,7 @@
 #include "world.h"
 
 int main() {	
-	create_world_with(1./10.);
+	create_world_with(1./5.);
 	
 	World& world = get_world();
 	Vector2i window_size = get_map_size("assets/map");

src/maploader.cpp

@@ -32,6 +32,15 @@ void load_world(World& world,const char* path) {
 					x++;
 				}
 	
+				break;
+			case 'G':
+				{
+					Ghost* ghost = new Ghost;
+					ghost->position = {(float)x*16,(float)y*16};
+					world.entities.push_back(ghost);
+
+				}
+				x++;
 				break;
 			case '\n':
 				
@@ -39,9 +48,22 @@ void load_world(World& world,const char* path) {
 				y++;
 				break;
 			case '-':
+				{
+					Portal* portal = new Portal;
+					portal->position = {(float)x*16,(float)y*16};
+					world.entities.push_back(portal);
+				}
 				x++;
 				break;
-			default:
+			case '+':
+				{
+					Door* door = new Door;
+					door->position = {(float)x*16,(float)y*16};
+					world.entities.push_back(door);
+				}
+				x++;
+				break;
+			case ' ':
 				{
 					Scorepoint* point = new Scorepoint;
 					point->position = {(float)x*16,(float)y*16};
@@ -49,6 +71,9 @@ void load_world(World& world,const char* path) {
 				}
 				x++;
 
+				break;
+			default:
+				x++;
 				break;
 		}
 		

src/pacman.cpp

@@ -24,20 +24,35 @@ Pacman::Pacman(Vector2 position) {
 }
 
 void Pacman::tick() {
-	// Input handling
-	if (IsKeyDown(KEY_W) || IsKeyDown(KEY_UP)) {this->facing=1;}
-	if (IsKeyDown(KEY_A) || IsKeyDown(KEY_LEFT)) {this->facing=2;}
-	if (IsKeyDown(KEY_S) || IsKeyDown(KEY_DOWN)) {this->facing=3;}
-	if (IsKeyDown(KEY_D) || IsKeyDown(KEY_RIGHT)) {this->facing=0;}
-
-	// Movement in direction
-	double angle = PI/2.0*facing;
-	Vector2 direction = {(float)(cos(angle)),(float)(sin(-angle))};
-	Vector2 new_position = Vector2Add(this->position,Vector2Scale(direction, (float)speed)); 
-	
 	World& world = get_world();
+	// Input handling
+	if (
+			(IsKeyDown(KEY_W) || IsKeyDown(KEY_UP)) 
+			&& dynamic_cast<PacmanWall*>(world.grid[world.indexify_position(project_position(1, 1))]) == nullptr
+			) 
+		this->facing=1;
 
-	if (dynamic_cast<Wall*>(world.grid[world.indexify_position(new_position)]) == nullptr){
+	else if (
+			(IsKeyDown(KEY_A) || IsKeyDown(KEY_LEFT)) 
+			&& dynamic_cast<PacmanWall*>(world.grid[world.indexify_position(project_position(2, 1))]) == nullptr
+			) 
+		this->facing=2;
+
+	else if ((IsKeyDown(KEY_S) || IsKeyDown(KEY_DOWN)) 
+			&& dynamic_cast<PacmanWall*>(world.grid[world.indexify_position(project_position(3, 1))]) == nullptr
+			) 
+		this->facing=3;
+
+	else if (
+			(IsKeyDown(KEY_D) || IsKeyDown(KEY_RIGHT))
+			&& dynamic_cast<PacmanWall*>(world.grid[world.indexify_position(project_position(0, 1))]) == nullptr
+			)
+		this->facing=0;
+	
+	// Movement in direction
+	Vector2 new_position = project_position(this->facing, 1);	
+
+	if (dynamic_cast<PacmanWall*>(world.grid[world.indexify_position(new_position)]) == nullptr){
 		this->position=new_position;
 	}
 	
@@ -79,7 +94,11 @@ void Pacman::collision(Entity* with){
 		score->queue_free();
 		get_world().points+=10;
 	}
-
+	Ghost* ghost = dynamic_cast<Ghost*>(with);
+	if (ghost != nullptr){
+		queue_free();
+		get_world().lose();
+	}
 }
 
 

src/world.cpp

@@ -4,8 +4,22 @@
 #include <raylib.h>
 #include <string>
 
+void init_world() {
+	create_world_with(1./5.);
+	
+	World& world = get_world();
+	Vector2i window_size = get_map_size("assets/map");
+	
+	world.load_atlas();
+	world.set_size(window_size);
+	load_world(world,"assets/map");
+
+	world.setup();
+}
+
 World::World(){
 	this->entities = {};
+	this->grid = new Entity*[get_capacity()];
 	this->seconds_per_tick = 0;
 	this->clock = 0;
 	this->debug = false;
@@ -16,7 +30,6 @@ World::~World(){
 	for(int i = 0; i < this->entities.size();i++) {
 		delete this->entities[i];
 	}
-	delete [] this->grid;
 	UnloadTexture(this->texture_atlas);
 }
 
@@ -36,6 +49,14 @@ void World::process(){
 		this->seconds_per_tick-=0.025;
 	if(IsKeyPressed(KEY_F3))
 		this->seconds_per_tick+=0.025;
+	
+	if(state != LevelState::NotFinished){
+		if(IsKeyPressed(KEY_Q))
+			CloseWindow();
+		if(IsKeyPressed(KEY_R))
+			init_world();
+		return;
+	}
 
 	this->update_grid();
 
@@ -75,6 +96,21 @@ void World::draw() const {
 	for(int i = 0; i < this->entities.size(); i++) {
 		this->entities[i]->draw();
 	}
+
+	if(state != LevelState::NotFinished) {
+		if(state == LevelState::Won)
+		{
+			DrawText("You won!", 16, 16, 24, WHITE);
+		}
+		else {
+			DrawText("You lost!",16,16,24,WHITE);
+		}
+		DrawText("q to quit, r to restart",0,40,16,WHITE);
+		DrawText(TextFormat("Score: %i",this->points),16,56,16,WHITE);
+
+	}
+
+
 	if (this->debug == false)
 		return;
 
@@ -122,7 +158,7 @@ void World::set_size(Vector2i size){
 	this->width = size.x;
 	this->height = size.y; 
 	if(this->grid != nullptr)
-		delete [] this->grid;
+		delete [] grid;
 	this->grid = new Entity*[this->get_capacity()];
 }
 
@@ -138,11 +174,20 @@ int World::get_columns() const{
 	return this->width/CELL_SIZE;
 }
 
+void World::lose(){
+	state = LevelState::Lost;
+}
+
+void World::win(){
+	state = LevelState::Won;
+}
+
 Texture2D* World::get_atlas() {
 	return &this->texture_atlas;
 }
 
 void create_world_with(float seconds_per_tick){
+	get_world() = World();
 	get_world().seconds_per_tick = seconds_per_tick;
 }
 

src/world.h

@@ -14,6 +14,12 @@ struct Vector2i{
 	int y;
 };
 
+enum LevelState{
+	NotFinished = 0,
+	Won = 1,
+	Lost = 2,
+};
+
 /// Class that holds information about game world
 class World {
 	public:
@@ -40,16 +46,20 @@ class World {
 		int get_columns() const;
 		int get_rows() const;
 		void load_atlas();
+		void lose();
+		void win();
 		Texture2D* get_atlas();
 		int indexify_position(Vector2 vector);
 		int points = 0;
 	private:
 		float clock = 0.;
+		int state = 0;
 		void update_grid();
 		Texture2D texture_atlas;
 };
 
 void create_world_with(float seconds_per_tick);
+void init_world();
 World& get_world(); // Thanks, 2ndbeam, helps a lot
 Vector2i get_map_size(const char* path);
 void load_world(World& world, const char* path);