block puzzle

games/boybomb.p8

@@ -8,7 +8,8 @@ __lua__
 function _init()
     palt(11, true)
     palt(0, false)
-    start_scene("explainer")
+    start_level(1)
+    last_gravity = t()
 end
 
 function _update()
@@ -35,10 +36,6 @@ function scene_time()
     return time() - _scene_start
 end
 
-_scene = nil
-_scenes = {}
-_scene_start = 0
-
 function draw_title()
     cls()
     print("title " .. scene_time())
@@ -50,7 +47,6 @@ function update_title()
     end
 end
 
-_scenes.title = {start=nil, draw=draw_title, update=update_title}
 
 function draw_dusk()
     cls()
@@ -140,7 +136,98 @@ function start_explainer()
     exp_phase = "boy"
 end
 
+function start_level(n)
+    start_scene("level")
+    puzzle_grid = {
+        {137, 0, 0, 0, 0, 0, 0, 137},
+        {0, 0, 0, 0, 0, 0, 0, 0},
+        {0, 0, 0, 0, 0, 0, 0, 0},
+        {0, 0, 0, 0, 0, 0, 0, 0},
+        {0, 0, 0, 0, 0, 0, 0, 0},
+        {137, 137, 137, 137, 137, 137, 137, 137},
+        {137, 137, 137, 137, 137, 137, 137, 137},
+        {137, 137, 137, 137, 137, 137, 137, 137},
+        {137, 137, 137, 137, 137, 137, 137, 137},
+    }
+    bomb_x = 4
+    bomb_y = 4
+end
+
+function draw_level()
+    local xoff = 0
+    local yoff = 0
+    cls()
+    map(0, 8, 0, 0, 16, 16)
+    for y=1,GRID_H do 
+        for x=1,GRID_W do
+            n = puzzle_grid[y][x]
+            if n > 0 then
+                spr(n, xoff+x*8, yoff+y*8)
+            end
+        end
+    end
+
+    print(" lobby", 90, 6)
+
+    spr(64, xoff+bomb_x*8, yoff+bomb_y*8)
+end
+
+function can_move(dx, dy)
+    local ny = bomb_y+dy
+    local nx = bomb_x+dx
+    if ny == 0 or ny > 8 or nx == 0 or nx > 8 then
+        return false
+    end
+    if puzzle_grid[ny][nx] ~= 0 then
+        return false
+    end
+    printh(ny, nx)
+    return true
+end
+
+function update_level()
+    if btnp(⬅️) and can_move(-1, 0) then
+        bomb_x -= 1
+    end
+    if btnp(➡️) and can_move(1, 0) then
+        bomb_x += 1
+    end
+    if btnp(⬇️) and can_move(0, 1) then
+        bomb_y += 1
+    end
+    if btnp(⬆️) and can_move(0, -1) then
+        bomb_y -= 1
+    end
+
+    -- gravity
+    if t() - last_gravity > 0.5 then
+        last_gravity = t()
+        for y=GRID_H-1,1,-1 do
+            for x=1,GRID_W do
+                if puzzle_grid[y+1][x] == 0 then
+                    puzzle_grid[y+1][x] = puzzle_grid[y][x]
+                    puzzle_grid[y][x] = 0
+                end
+            end
+        end
+        if bomb_y < GRID_H and puzzle_grid[bomb_y+1][bomb_x] == 0 then
+            bomb_y += 1
+        end
+    end
+end
+
+-- globals
+_scene = nil
+_scenes = {}
+_scene_start = 0
+
+_scenes.title = {start=nil, draw=draw_title, update=update_title}
 _scenes.explainer = {start=start_explainer, draw=draw_explainer, update=update_explainer}
+_scenes.level = {start=nil, draw=draw_level, update=update_level}
+
+GRID_W = 8
+GRID_H = 9
+GRID_CRATE = 137
 
 animations = {
     boy_walk={frames={[0]=2, 0, 4, 0}, w=2, h=2},
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