Display and allow user to select option choices

game.c

@@ -1,4 +1,5 @@
 #include <string.h>
+#include <stdlib.h>
 #include <stdio.h>
 
 #include "game.h"
@@ -24,9 +25,14 @@ void initialize_game(Game *g) {
   g->should_close = false;
   g->state = GAME_STATE_INITIALIZING;
   g->field_multiplier = NULL;
-  g->kan_value = 12;
   g->dialog = NULL;
+
+  g->kan_value = 12;
+  g->number_of_rounds = 1;
+  g->black_card_backs = true;
   g->deal_speed = 0.2;
+  g->options = malloc(sizeof(Options));
+  load_options_from_game(g);
 
   init_dialogs(g);
 
@@ -136,9 +142,8 @@ void initialize_game(Game *g) {
     break;
   }
 
-  g->number_of_rounds = 1;
   g->current_round = 0;
-  g->state = GAME_STATE_INITIALIZING;
+  g->state = GAME_STATE_OPTIONS;
 }
 
 Player *current_player(Game *g) {
@@ -159,15 +164,19 @@ bool is_player_turn(Game *g) {
 }
 
 void handle_input(Game *g) {
-  if (IsKeyPressed(KEY_R)) {
-    g->state = GAME_STATE_INITIALIZING;
-    return;
+  if (g->state == GAME_STATE_OPTIONS) {
+    return options_handle_input(g);
   }
 
   if (g->dialog) {
     return dialog_handle_input(g->dialog);
   }
 
+  if (IsKeyPressed(KEY_R)) {
+    g->state = GAME_STATE_INITIALIZING;
+    return;
+  }
+
   if (!is_player_turn(g)) return;
 
   switch (g->state) {
@@ -821,6 +830,8 @@ void run_frame(Game *g) {
   case GAME_STATE_NEW_GAME:
     run_frame_new_game(g);
     break;
+  case GAME_STATE_OPTIONS:
+    break;
   }
 }
 
@@ -853,6 +864,12 @@ void draw_frame(Game *g) {
 
   draw_cards(g);
 
+  if (g->state == GAME_STATE_OPTIONS) {
+    options_draw(g);
+    EndDrawing();
+    return;
+  }
+
   if (g->state == GAME_STATE_DEALING) {
     DrawText("Dealing....", 60, 385, 40, BLACK);
   } else if (g->field_multiplier) {

game.h

@@ -12,6 +12,7 @@ typedef struct Game Game;
 #include "points.h"
 #include "player.h"
 #include "dialog.h"
+#include "options.h"
 
 typedef enum GameState {
   GAME_STATE_INITIALIZING,
@@ -33,6 +34,7 @@ typedef enum GameState {
   GAME_STATE_END_OF_GAME,
   GAME_STATE_NEW_GAME,
   GAME_STATE_TITLE_SCREEN,
+  GAME_STATE_OPTIONS,
 } GameState;
 
 struct Game {
@@ -43,16 +45,17 @@ struct Game {
   Hand deck, field;
   FieldMultiplier *field_multiplier;
   Card *current_play_from_hand, *current_play_target;
-  int kan_value;
   Player player, right, left;
   int temp_points;
   int turn_number;
   Dialog *dialog;
   Player *dealer;
-  int number_of_rounds;
-  Color card_backs;
-  float deal_speed;
   int current_round;
+  int kan_value;
+  int number_of_rounds;
+  bool black_card_backs;
+  float deal_speed;
+  Options *options;
 };
 
 void initialize_game(Game *g);

options.c

@@ -1,15 +1,112 @@
 #include "options.h"
 
-void load_options_from_game(Game *g, Options *o) {
-  o->kan_value = g->kan_value;
-  o->number_of_rounds = g->number_of_rounds;
-  o->card_backs = g->card_backs;
-  o->deal_speed = g->deal_speed;
+int kan_value_from_index(int index) { return index == 0 ? 10 : 12; }
+int index_from_kan_value(int kan_value) { return kan_value == 10 ? 0 : 1; }
+int number_of_rounds_from_index(int index) {
+  int r[] = { 1, 3, 6, 12 };
+  return r[index];
+}
+int index_from_number_of_rounds(int number_of_rounds) {
+  int r[] = { 0, 0, 0, 1, 0, 0, 2, 0, 0, 0, 0, 0, 3 };
+  return r[number_of_rounds];
+}
+float deal_speed_from_index(int index) { return (index + 1) / 10. ; }
+float index_from_deal_speed(float deal_speed) { return (int) (deal_speed * 10) - 1 ; }
+
+void load_options_from_game(Game *g) {
+  g->options->kan_value = index_from_kan_value(g->kan_value);
+  g->options->number_of_rounds = index_from_number_of_rounds(g->number_of_rounds);
+  g->options->card_backs = g->black_card_backs;
+  g->options->deal_speed = index_from_deal_speed(g->deal_speed);
 }
 
-void save_options_to_game(Game *g, Options *o) {
-  g->kan_value = o->kan_value;
-  g->number_of_rounds = o->number_of_rounds;
-  g->card_backs = o->card_backs;
-  g->deal_speed = o->deal_speed;
+void save_options_to_game(Game *g) {
+  g->kan_value = kan_value_from_index(g->options->kan_value);
+  g->number_of_rounds = number_of_rounds_from_index(g->options->number_of_rounds);
+  g->black_card_backs = g->options->card_backs;
+  g->deal_speed = deal_speed_from_index(g->options->deal_speed);
+}
+
+void handle_options_save(Game *g) {
+  save_options_to_game(g);
+  g->state = GAME_STATE_INITIALIZING;
+}
+
+void handle_options_cancel(Game *g) {
+  load_options_from_game(g);
+  g->state = GAME_STATE_INITIALIZING;
+}
+
+void handle_select_kan(Game *g, int index) {
+  g->options->kan_value = index;
+}
+
+void handle_select_number_of_rounds(Game *g, int index) {
+  g->options->number_of_rounds = index;
+}
+
+void handle_select_card_backs(Game *g, int index) {
+  g->options->card_backs = index;
+}
+
+void handle_select_deal_speed(Game *g, int index) {
+  g->options->deal_speed = index;
+}
+
+OptionsChoices kan_choices = {              { "Ten", "Twelve" },                                    2, 250, &handle_select_kan };
+OptionsChoices number_of_rounds_choices = { { "One", "Three", "Six", "Twelve" },                    4, 400, &handle_select_number_of_rounds };
+OptionsChoices card_backs_choices = {       { "Red", "Black" },                                     2, 550, &handle_select_card_backs };
+OptionsChoices deal_speed_choices = {       { "Very Slow", "Slow", "Medium", "Fast", "Very Fast" }, 5, 700, &handle_select_deal_speed };
+OptionsChoices *oc[4] = { &kan_choices, &number_of_rounds_choices, &card_backs_choices, &deal_speed_choices };
+
+void options_handle_input(Game *g) {
+  if (!IsMouseButtonPressed(0)) return;
+
+  int left = 250;
+  int width = 900;
+
+  Vector2 mouse_pos = GetMousePosition();
+  int x = mouse_pos.x, y = mouse_pos.y;
+  for (int i = 0; i < 4; i++) {
+    OptionsChoices *choices = oc[i];
+    if (y < choices->y || y > choices->y + 30) continue;
+
+    for (int j = 0; j < choices->count; j++) {
+      char *choice = choices->choice[j];
+      int w = MeasureText(choice, 30);
+      int center = left + (width / (choices->count + 1)) * (j + 1);
+      int min = center - (w/2);
+      int max = center + (w/2);
+      if (x > min && x < max) {
+	choices->handle(g, j);
+	return;
+      }
+    }
+  }
+}
+
+void DrawTextCentered(char *text, int center_x, int y, int point, Color color) {
+  int width = MeasureText(text, point);
+  DrawText(text, center_x - (width / 2), y, point, color);
+}
+
+void draw_option_choices(OptionsChoices *choices, int selected_index) {
+  int left = 250;
+  int width = 900;
+  for (int i = 0; i < choices->count; i++) {
+    Color color = i == selected_index ? RED : BLACK;
+    DrawTextCentered(choices->choice[i], left + (width / (choices->count + 1)) * (i + 1), choices->y, 30, color);
+  }
+}
+
+void options_draw(Game *g) {
+  DrawTextCentered("Options", 700, 50, 60, BLACK);
+  DrawTextCentered("Kan Value", 700, 175, 40, BLACK);
+  draw_option_choices(&kan_choices, g->options->kan_value);
+  DrawTextCentered("Number of Rounds", 700, 325, 40, BLACK);
+  draw_option_choices(&number_of_rounds_choices, g->options->number_of_rounds);
+  DrawTextCentered("Card Backs", 700, 475, 40, BLACK);
+  draw_option_choices(&card_backs_choices, g->options->card_backs);
+  DrawTextCentered("Deal Speed", 700, 625, 40, BLACK);
+  draw_option_choices(&deal_speed_choices, g->options->deal_speed);
 }

options.h

@@ -2,17 +2,27 @@
 #define _HF_OPTIONS_
 
 typedef struct Options Options;
+typedef struct OptionsChoices OptionsChoices;
 
 #include "game.h"
 
 struct Options {
   int kan_value;
   int number_of_rounds;
-  Color card_backs;
-  float deal_speed;
+  int card_backs;
+  int deal_speed;
 };
 
-void load_options_from_game(Game *g, Options *o);
-void save_options_to_game(Game *g, Options *o);
+struct OptionsChoices {
+  char *choice[5];
+  int count;
+  int y;
+  void (*handle)(Game*, int);
+};
+
+void load_options_from_game(Game *g);
+void save_options_to_game(Game *g);
+void options_handle_input(Game *g);
+void options_draw(Game *g);
 
 #endif