From 1082493e2761c3f4d6a9809b5f012776723fd937 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Tue, 10 Aug 2021 01:29:05 -0400
Subject: game: Create multiple enemies

---
(limited to 'src/game.c')

diff --git a/src/game.c b/src/game.c
index 549088c..5daea66 100644
--- a/src/game.c
+++ b/src/game.c
@@ -140,25 +140,26 @@ _mf_game_fow(SDL_Renderer *renderer, struct _mf_game *game,
 }
 
 int
-mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
+mf_game(long seed, int size, int fow, int reveal, int enemies,
+		SDL_Renderer *renderer)
 {
-	struct mf_maze     *maze        = NULL;
-	struct mf_char     *player      = NULL;
-	struct mf_char     *enemy       = NULL;
-	SDL_Color           maze_color;
-	char               *font_path   = NULL;
-	TTF_Font           *text_font   = NULL;
-	SDL_Color           form_color;
-	SDL_Color           text_color;
-	struct _mf_game     game;
-	struct mftk_window *win         = NULL;
-	int                 fr;
-	int                 won;
-	Uint32              beg;
-	int                 secs;
-	Uint32              end;
-	Uint32              delay;
-	SDL_Event           event;
+	struct mf_maze      *maze        = NULL;
+	struct mf_char     **chars       = NULL;
+	int                  i;
+	SDL_Color            maze_color;
+	char                *font_path   = NULL;
+	TTF_Font            *text_font   = NULL;
+	SDL_Color            form_color;
+	SDL_Color            text_color;
+	struct _mf_game      game;
+	struct mftk_window  *win         = NULL;
+	int                  fr;
+	int                  won;
+	Uint32               beg;
+	int                  secs;
+	Uint32               end;
+	Uint32               delay;
+	SDL_Event            event;
 
 	/* Create maze */
 	maze = mf_maze_new(seed, size, size, reveal);
@@ -170,14 +171,23 @@ mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
 	maze_color.b = MF_COLOR_MAZE_B;
 	maze_color.a = MF_COLOR_MAZE_A;
 
-	player = mf_player_new(maze, MF_WINDOW_H / size);
-	if (player == NULL) {
+	chars = calloc(1 + enemies, sizeof(*chars));
+	if (chars == NULL) {
+		SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+				"Couldn't allocate characters: %s",
+				strerror(errno));
 		goto err;
 	}
-	enemy = mf_enemy_new(maze, MF_WINDOW_H / size, size);
-	if (enemy == NULL) {
+	chars[0] = mf_player_new(maze, MF_WINDOW_H / size);
+	if (chars[0] == NULL) {
 		goto err;
 	}
+	for (i = 1; i < 1 + enemies; ++i) {
+		chars[i] = mf_enemy_new(maze, MF_WINDOW_H / size, size);
+		if (chars[i] == NULL) {
+			goto err;
+		}
+	}
 
 	font_path = mf_strcat(mf_get_fonts_dir(), "/FifteenTwenty-Regular.ttf");
 	text_font = TTF_OpenFont(font_path, MF_TEXT_FONT_S);
@@ -222,7 +232,7 @@ mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
 				default:
 					break;
 			}
-			mf_player_key_event(player, &event);
+			mf_player_key_event(chars[0], &event);
 			switch (mftk_window_event(win, &event)) {
 				case 0:
 					break;
@@ -233,9 +243,10 @@ mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
 			}
 		}
 		if (won == SDL_FALSE) {
-			mf_char_update(player);
-			mf_char_update(enemy);
-			mf_char_get_vector(player, &game.player_cx,
+			for (i = 0; i < 1 + enemies; ++i) {
+				mf_char_update(chars[i]);
+			}
+			mf_char_get_vector(chars[0], &game.player_cx,
 					&game.player_cy, &game.player_travel,
 					&game.player_dx, &game.player_dy);
 			game.player_x = game.player_cx * MF_WINDOW_H / size;
@@ -251,8 +262,9 @@ mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
 				MF_COLOR_BACK_R, MF_COLOR_BACK_G,
 				MF_COLOR_BACK_B, MF_COLOR_BACK_A);
 		SDL_RenderClear(renderer);
-		mf_char_render(player, renderer);
-		mf_char_render(enemy, renderer);
+		for (i = 0; i < 1 + enemies; ++i) {
+			mf_char_render(chars[i], renderer);
+		}
 		if (fow == SDL_TRUE && _mf_game_fow(renderer, &game, maze,
 					MF_WINDOW_H / size) < 0) {
 			goto err;
@@ -290,8 +302,12 @@ mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
 	TTF_CloseFont(text_font);
 	text_font = NULL;
 	mf_maze_destroy(&maze);
-	mf_char_destroy(&player);
-	mf_char_destroy(&enemy);
+	if (chars != NULL) {
+		for (i = 0; i < 1 + enemies; ++i) {
+			mf_char_destroy(&chars[i]);
+		}
+		free(chars);
+	}
 	return 0;
 
  quit:
@@ -299,8 +315,12 @@ mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
 	TTF_CloseFont(text_font);
 	text_font = NULL;
 	mf_maze_destroy(&maze);
-	mf_char_destroy(&player);
-	mf_char_destroy(&enemy);
+	if (chars != NULL) {
+		for (i = 0; i < 1 + enemies; ++i) {
+			mf_char_destroy(&chars[i]);
+		}
+		free(chars);
+	}
 	return 1;
 
  err:
@@ -312,7 +332,11 @@ mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
 	}
 	mftk_window_destroy(&win);
 	mf_maze_destroy(&maze);
-	mf_char_destroy(&player);
-	mf_char_destroy(&enemy);
+	if (chars != NULL) {
+		for (i = 0; i < 1 + enemies; ++i) {
+			mf_char_destroy(&chars[i]);
+		}
+		free(chars);
+	}
 	return -1;
 }
--
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