Enter the matrix

CMakeLists.txt

@@ -20,6 +20,7 @@ set(SOURCES
 	src/grid/alloc.c
 	src/grid/random_walker.c
 	src/grid/draw.c
+	src/grid/shop.c
 )
 
 set(ASSETS

include/grid.h

@@ -15,3 +15,4 @@ void grid_set(struct Grid *restrict, int x, int y, enum Tile);
 enum Tile grid_get(struct Grid, int x, int y);
 void grid_draw(struct Grid, int scr_x, int scr_y);
 void grid_random_walker(struct Grid *restrict grid);
+void grid_shop(struct Grid *restrict grid);

include/tiles.h

@@ -10,5 +10,6 @@ enum Tile {
 	TILE_OBSTACLE_3,
 	TILE_SOLID,
 	TILE_ZONE_TRANSITION,
+	TILE_CONTRACTS,
 };
 #define TILE_OOB TILE_SOLID

src/grid/draw.c

@@ -65,6 +65,12 @@ tile_draw(enum Tile tile, int x, int y)
 	case TILE_SOLID:
 		color = C_BLUE;
 		break;
+	case TILE_ZONE_TRANSITION:
+		color = C_RGB(0, 31, 31);
+		break;
+	case TILE_CONTRACTS:
+		color = C_RGB(31, 31, 0);
+		break;
 	default:
 		color = C_RGB(31, 0, 31);
 		break;

src/grid/random_walker.c

@@ -54,4 +54,12 @@ grid_random_walker(struct Grid *restrict grid)
 			break;
 		}
 	}
+
+	/* place resting points */
+	for (x = 64; x < grid->width; x += 64) {
+		for (y = 0; y < grid->height; y += 1) {
+			if (!grid_get(*grid, x, y)) break;
+		}
+		grid_set(grid, x, y, TILE_ZONE_TRANSITION);
+	}
 }

src/grid/shop.c

@@ -0,0 +1,10 @@
+#include "grid.h"
+#include "tiles.h"
+
+void grid_shop(struct Grid *restrict grid) {
+	const int x_middle = grid->width / 2;
+	const int y_middle = grid->height / 2;
+
+	grid_set(grid, x_middle, y_middle, TILE_CONTRACTS);
+	grid_set(grid, x_middle + 4, y_middle, TILE_ZONE_TRANSITION);
+}

src/main.c

@@ -57,8 +57,11 @@ main_loop(struct Game *restrict game)
 	clearevents();
 	switch(game->state) {
 	case GameFloor:
-		if (player_update(&game->player, &game->floor))
+		if (player_update(&game->player, &game->floor)) {
 			game->state = GameRest;
+			grid_shop(&game->rest);
+		}
+		scroll_x -= 1;
 		break;
 	case GameRest:
 		if (player_update(&game->player_rest, &game->rest))
@@ -83,7 +86,5 @@ main_loop(struct Game *restrict game)
 	}
 	dupdate();
 
-	scroll_x -= 1;
-
 	return keydown(KEY_EXIT);
 }

src/player/update.c

@@ -49,7 +49,11 @@ player_update(struct Player *restrict player, struct Grid *restrict grid)
 		player->y = new_y;
 		break;
 	case TILE_ZONE_TRANSITION:
+		grid_set(grid, new_x, new_y, TILE_VOID);
 		return 1;
+	case TILE_CONTRACTS:
+		/* start contracts sequence */
+		break;
 	case TILE_OBSTACLE_1:
 		player->cash += 1;
 		/* fallthrough */