What the heck

game.c

@@ -53,7 +53,7 @@ void initialize_game(Game *g) {
     case 41:
       t = ANIMAL; break;
     }
-    g->cards[i] = (Card) { i, t, rt, month, { 800, 100 }, false, false };
+    g->cards[i] = (Card) { i, t, rt, month, { 800, 100 }, false };
     g->cards[i].move.end_time = 0.;
     g->cards[i].move.position = &g->cards[i].position;
     g->cards[i].move.destination = (Vector2) { 800, 400 };
@@ -86,37 +86,22 @@ void initialize_game(Game *g) {
 
 bool stale_calculation = true;
 void handle_input(Game *g) {
+  switch (g->state) {
+  case GAME_STATE_PLAYER_CHOOSING_FROM_HAND:
     if (IsMouseButtonPressed(0)) {
       mouse_pos = GetMousePosition();
-    for (int i = 0; i < 48; i++) {
+      for (int i = 0; i < g->player_hand.count; i++) {
-      if (point_within_card(&g->cards[i], mouse_pos)) {
+	if (point_within_card(g->player_hand.cards[i], mouse_pos)) {
-	g->cards[i].selected = !g->cards[i].selected;
+	  // g->selected_card = g->player_hand.cards[i];
-	stale_calculation = true;
 	  break;
 	}
       }
     }
-}
+    break;
-
+  case GAME_STATE_PLAYER_CHOOSING_TARGET:
-void run_calculation(Game *g) {
+    break;
-  int num_selected = 0;
+  default:
-  if (stale_calculation) {
+    break;
-    Hand h;
-    h.count = 0;
-    for (int i = 0; i < 48; i++) {
-      num_selected += g->cards[i].selected;
-      if (g->cards[i].selected) h.cards[h.count++] = &g->cards[i];
-    }
-
-    if (num_selected == 7) {
-      Teyaku t;
-      calculate_teyaku(h, &t);
-      teyaku_to_string(&t, teyaku_calculation);
-    } else {
-      strcpy(teyaku_calculation, "");
-    }
-
-    stale_calculation = false;
   }
 }
 
@@ -149,10 +134,18 @@ void run_frame_calculating_field_multiplier(Game *g) {
 
 void run_frame_calculating_teyaku(Game *g) {
   calculate_teyaku(g->player_hand, &g->player_teyaku);
-  g->state = GAME_STATE_INITIALIZING;
+  // g->selected_card = NULL;
+  g->state = GAME_STATE_PLAYER_CHOOSING_FROM_HAND;
+}
+
+void run_frame_player_choosing_from_hand(Game *g) {
+}
+void run_frame_player_choosing_target(Game *g) {
 }
 
 void run_frame(Game *g) {
+  handle_input(g);
+
   float delta = GetFrameTime();
   bool done_moving = true;
   for (int i = 0; i < 48; i++) {
@@ -161,8 +154,6 @@ void run_frame(Game *g) {
   }
   if (!done_moving) return;
 
-  handle_input(g);
-
   switch (g->state) {
   case GAME_STATE_INITIALIZING:
     return;
@@ -175,8 +166,13 @@ void run_frame(Game *g) {
   case GAME_STATE_CALCULATING_TEYAKU:
     run_frame_calculating_teyaku(g);
     break;
+  case GAME_STATE_PLAYER_CHOOSING_FROM_HAND:
+    run_frame_player_choosing_from_hand(g);
+    break;
+  case GAME_STATE_PLAYER_CHOOSING_TARGET:
+    run_frame_player_choosing_target(g);
+    break;
   }
-  run_calculation(g);
 }
 
 void draw_frame(Game *g) {
@@ -192,6 +188,18 @@ void draw_frame(Game *g) {
     teyaku_to_string(&g->player_teyaku, s);
     DrawText(s, 5, 25, 30, BLACK);
   }
+
+  switch (g->state) {
+  case GAME_STATE_PLAYER_CHOOSING_FROM_HAND:
+    DrawText("Choose a card to play", 60, 485, 40, BLACK);
+    break;
+  case GAME_STATE_PLAYER_CHOOSING_TARGET:
+    DrawText("Choose a target on the field", 60, 485, 40, BLACK);
+    break;
+  default:
+    break;
+  }
+
   EndDrawing();
 }
 

game.h

@@ -14,6 +14,8 @@ typedef enum GameState {
   GAME_STATE_DEALING,
   GAME_STATE_CALCULATING_FIELD_MULTIPLIER,
   GAME_STATE_CALCULATING_TEYAKU,
+  GAME_STATE_PLAYER_CHOOSING_FROM_HAND,
+  GAME_STATE_PLAYER_CHOOSING_TARGET,
 } GameState;
 
 struct Game {

play.c

@@ -0,0 +1,26 @@
+#include <stddef.h>
+#include <stdbool.h>
+#include "play.h"
+
+bool valid_play(Hand *field, Card *played, Card *target) {
+  if (target == NULL) {
+    bool matching_month_in_field = false;
+    for (int i = 0; i < field->count; i++) {
+      if (field->cards[i]->month == target->month) {
+	matching_month_in_field = true;
+	break;
+      }
+    }
+    return !matching_month_in_field;
+  } else {
+    bool target_in_field = false;
+    for (int i = 0; i < field->count; i++) {
+      if (field->cards[i]->index == target->index) {
+	target_in_field = true;
+	break;
+      }
+    }
+    if (!target_in_field) return false;
+    return played->month == target->month;
+  }
+}

play.h

@@ -0,0 +1,10 @@
+#ifndef _HF_PLAY_
+#define _HF_PLAY_
+
+#include <stdbool.h>
+
+#include "card.h"
+
+bool valid_play(Hand *field, Card *played, Card *target);
+
+#endif