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RPG样例

inventory.py

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+# inventory.py
+
+import curses
+
+class Inventory:
+    def __init__(self, cols=5, rows=4):
+        self.cols = cols
+        self.rows = rows
+        self.slots = {i: None for i in range(cols * rows)}
+        for i, ch in enumerate(["S", "H", "P"]):
+            if i < cols * rows:
+                self.slots[i] = ch
+        self.held = None
+        self.held_pos = (0, 0)
+
+    def draw(self, stdscr, scr_w, scr_h):
+        side = int(min(scr_w, scr_h) * 0.6)
+        cell = (side - 2) // max(self.cols, self.rows)
+        win_w = cell * self.cols + 2
+        win_h = cell * self.rows + 2
+        sx = (scr_w - win_w) // 2
+        sy = (scr_h - win_h) // 2
+
+        win = curses.newwin(win_h, win_w, sy, sx)
+        win.bkgd(' ', curses.color_pair(3))
+        win.box()
+
+        for idx in range(self.cols * self.rows):
+            r, c = divmod(idx, self.cols)
+            y0 = 1 + r * cell
+            x0 = 1 + c * cell
+            # 绘格子
+            for x in range(x0, x0+cell):
+                win.addch(y0, x, curses.ACS_HLINE)
+                win.addch(y0+cell-1, x, curses.ACS_HLINE)
+            for y in range(y0, y0+cell):
+                win.addch(y, x0, curses.ACS_VLINE)
+                win.addch(y, x0+cell-1, curses.ACS_VLINE)
+            win.addch(y0, x0, curses.ACS_ULCORNER)
+            win.addch(y0, x0+cell-1, curses.ACS_URCORNER)
+            win.addch(y0+cell-1, x0, curses.ACS_LLCORNER)
+            win.addch(y0+cell-1, x0+cell-1, curses.ACS_LRCORNER)
+            # 画字母
+            ch = self.slots.get(idx)
+            if ch:
+                win.addch(y0 + cell//2, x0 + cell//2, ch, curses.color_pair(2))
+
+        win.refresh()
+
+        if self.held:
+            my, mx = self.held_pos
+            if 0 <= my < scr_h and 0 <= mx < scr_w:
+                stdscr.addch(my, mx, self.held, curses.color_pair(2))
+                stdscr.refresh()
+
+        return (sy, sx, win_h, win_w)
+
+    def click(self, my, mx, area):
+        sy, sx, h, w = area
+        if not (sy <= my < sy+h and sx <= mx < sx+w):
+            return
+        rel_y, rel_x = my-sy-1, mx-sx-1
+        cell_h = (h-2)//self.rows
+        cell_w = (w-2)//self.cols
+        r = rel_y // cell_h
+        c = rel_x // cell_w
+        if 0 <= r < self.rows and 0 <= c < self.cols:
+            idx = r*self.cols + c
+            if self.held:
+                if self.slots.get(idx) is None:
+                    self.slots[idx] = self.held
+                    self.held = None
+            else:
+                ch = self.slots.get(idx)
+                if ch:
+                    self.held = ch
+                    self.slots[idx] = None
+
+    def move(self, my, mx):
+        self.held_pos = (my, mx)