From aea75d09f6df521b4b30298eea2c9d8c9bd7c9c9 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Sun, 08 Aug 2021 17:33:53 -0400
Subject: game: Add win condition

---
(limited to 'src')

diff --git a/src/game.c b/src/game.c
index 8c3a8ff..5a410e2 100644
--- a/src/game.c
+++ b/src/game.c
@@ -33,6 +33,13 @@ struct _mf_game {
 	struct mftk_widget *timer;
 	char                time_buf[6];
 	Uint32              beg;
+	int                 player_cx;
+	int                 player_cy;
+	int                 player_travel;
+	int                 player_dx;
+	int                 player_dy;
+	int                 player_x;
+	int                 player_y;
 };
 
 static int
@@ -63,8 +70,8 @@ _mf_game_form(SDL_Renderer *renderer, TTF_Font *text_font,
 }
 
 static int
-_mf_game_fow(SDL_Renderer *renderer, struct mf_maze *maze,
-		struct mf_player *player, int cw)
+_mf_game_fow(SDL_Renderer *renderer, struct _mf_game *game,
+		struct mf_maze *maze, int cw)
 {
 	int      x1;
 	int      y1;
@@ -84,8 +91,11 @@ _mf_game_fow(SDL_Renderer *renderer, struct mf_maze *maze,
 		return -1; \
 	}
 
-	mf_player_get_vector(player, &x1, &y1, &travel, &dx, &dy);
-	x2 = x1, y2 = y1;
+	x2 = x1 = game->player_cx;
+	y2 = y1 = game->player_cy;
+	travel  = game->player_travel;
+	dx      = game->player_dx;
+	dy      = game->player_dy;
 	while (!mf_maze_is_wall(maze, dx >= 0 ? x2 : x1, dy >= 0 ? y2 : y1,
 				dx, dy)) {
 		if (dx >= 0) x2 += dx;
@@ -142,6 +152,7 @@ mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
 	struct _mf_game     game;
 	struct mftk_window *win         = NULL;
 	int                 fr;
+	int                 won;
 	Uint32              beg;
 	int                 secs;
 	Uint32              end;
@@ -189,6 +200,7 @@ mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
 	game.beg = SDL_GetTicks();
 
 	fr = 30;
+	won = SDL_FALSE;
 	while(1) {
 		beg = SDL_GetTicks();
 		while (SDL_PollEvent(&event)) {
@@ -215,26 +227,41 @@ mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
 					goto err;
 			}
 		}
-		mf_player_update(player);
+		if (won == SDL_FALSE) {
+			mf_player_update(player);
+			mf_player_get_vector(player, &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;
+			game.player_y = game.player_cy * MF_WINDOW_H / size;
+			game.player_x += game.player_travel * game.player_dx;
+			game.player_y += game.player_travel * game.player_dy;
+			if (game.player_cx == size - 1 &&
+					game.player_cy == size - 1) {
+				won = SDL_TRUE;
+			}
+		}
 		SDL_SetRenderDrawColor(renderer,
 				MF_COLOR_BACK_R, MF_COLOR_BACK_G,
 				MF_COLOR_BACK_B, MF_COLOR_BACK_A);
 		SDL_RenderClear(renderer);
 		mf_player_render(player, renderer);
-		if (fow == SDL_TRUE && _mf_game_fow(renderer, maze, player,
+		if (fow == SDL_TRUE && _mf_game_fow(renderer, &game, maze,
 					MF_WINDOW_H / size) < 0) {
 			goto err;
 		}
 		mf_maze_render(maze, renderer, &maze_color, MF_WINDOW_H / size);
-		secs = (beg - game.beg) / 1000;
-		if (sprintf(game.time_buf, "%02d:%02d", secs / 60, secs % 60)
-				< 0) {
-			SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-					"Couldn't allocate string: %s",
-					strerror(errno));
-			goto err;
+		if (won == SDL_FALSE) {
+			secs = (beg - game.beg) / 1000;
+			if (sprintf(game.time_buf, "%02d:%02d",
+						secs / 60, secs % 60) < 0) {
+				SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+						"Couldn't allocate string: %s",
+						strerror(errno));
+				goto err;
+			}
+			mftk_text_set_value(game.timer, game.time_buf);
 		}
-		mftk_text_set_value(game.timer, game.time_buf);
 		mftk_window_render(win, renderer);
 		SDL_RenderPresent(renderer);
 		end = SDL_GetTicks();
--
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