Fix urchin sometimes not bouncing

engine/gui.c

@@ -678,6 +678,9 @@ bool vert_scrollarea_n_items(VertScrollArea_t* scroll_area, unsigned int n_items
     scroll_area->n_items = n_items;
     scroll_area->scroll_bounds.x =
         (scroll_area->max_items - n_items)* (scroll_area->item_height + scroll_area->item_padding) + scroll_area->item_padding;
+    if (scroll_area->scroll_bounds.x > scroll_area->scroll_bounds.y) {
+        scroll_area->scroll_bounds.x = scroll_area->scroll_bounds.y;
+    }
     return true;
 }
 

res/level_render.py

@@ -47,9 +47,10 @@ ENUMIDS_TILETYPE_MAPPING = {
 DANGER_COLOUR = (239,79,81,255)
 WCRATE_COLOUR = (160,117,48,255)
 MCRATE_COLOUR = (110,110,110,255)
-WATER_COLOUR = (0,0,110,128)
+WATER_COLOUR = (0,0,128,64)
 
 REC_DRAW_FUNCTION = lambda ctx,x,y,s,c : ctx.rectangle(((x,y), (x+s-1, y+s-1)), c) 
+RECLINE_DRAW_FUNCTION = lambda ctx,x,y,s,c : ctx.rectangle(((x,y), (x+s-1, y+s-1)), fill=None, outline=c) 
 UPHALFREC_DRAW_FUNCTION = lambda ctx,x,y,s,c : ctx.rectangle(((x,y), (x+s-1, y+s//2-1)), c) 
 DOWNHALFREC_DRAW_FUNCTION = lambda ctx,x,y,s,c : ctx.rectangle(((x, y+s//2), (x+s-1,y+s-1)), c) 
 LEFTHALFREC_DRAW_FUNCTION = lambda ctx,x,y,s,c : ctx.rectangle(((x,y), (x+s//2-1, y+s-1)), c) 
@@ -82,7 +83,7 @@ def draw_urchin_tile(ctx, x, y, s, c):
 TILETYPE_SHAPE_MAP = {
     'Solid': (REC_DRAW_FUNCTION, (0,0,0,255)),
     'WoodenPlat': (UPHALFREC_DRAW_FUNCTION, (128,64,0,255)),
-    'Ladder': (REC_DRAW_FUNCTION, (214,141,64,255)),
+    'Ladder': (RECLINE_DRAW_FUNCTION, (214,141,64,255)),
     'LSpike': (LEFTHALFREC_DRAW_FUNCTION, DANGER_COLOUR),
     'RSpike': (RIGHTHALFREC_DRAW_FUNCTION, DANGER_COLOUR),
     'USpike': (UPHALFREC_DRAW_FUNCTION, DANGER_COLOUR),
@@ -165,7 +166,9 @@ FULL_IMG_HEIGHT = N_ROWS * IMG_HEIGHT
 # Then loop the levels. Read the layerIndstances
 
 lvl_render = Image.new("RGBA", (FULL_IMG_WIDTH, FULL_IMG_HEIGHT), (255,255,255,0))
+water_render = Image.new("RGBA", (FULL_IMG_WIDTH, FULL_IMG_HEIGHT), (255,255,255,0))
 render_ctx = ImageDraw.Draw(lvl_render)
+water_render_ctx = ImageDraw.Draw(water_render)
 for l, level in enumerate(all_levels):
     lx = (l % LEVELS_PER_ROW) * IMG_WIDTH
     ly = (l // LEVELS_PER_ROW) * IMG_HEIGHT
@@ -247,7 +250,8 @@ for l, level in enumerate(all_levels):
             continue
         x, y = (i % width * TILE_SIZE + OFFSET[0], i // width * TILE_SIZE + OFFSET[1])
         height = TILE_SIZE * water_level / 4
-        render_ctx.rectangle(((x,y+TILE_SIZE-height), (x+TILE_SIZE-1, y+TILE_SIZE-1)), WATER_COLOUR) 
+        water_render_ctx.rectangle(((x,y+TILE_SIZE-height), (x+TILE_SIZE-1, y+TILE_SIZE-1)), WATER_COLOUR) 
 
+lvl_render = Image.alpha_composite(lvl_render, water_render)
 lvl_render.save("preview.png")
 lvl_render.show()

res/pack_ldtk.sh

@@ -1,3 +1,3 @@
-#!/bin/sh
-
-python ldtk_repacker.py $1.ldtk && zstd $1.lvldata
+#!/bin/bash
+source venv/bin/activate
+python ldtk_repacker.py $1.ldtk && zstd $1.lvldata && python level_render.py $1.ldtk

scenes/game_systems.c

@@ -878,7 +878,7 @@ void tile_collision_system(Scene_t* scene)
         if ((collide_side & (1<<2)) || (collide_side & (1<<3)))
         {
             Vector2 check_pos = p_ent->position;
-            check_pos.x += p_ctransform->velocity.x * scene->delta_time;
+            check_pos.x += (signbit(p_ctransform->velocity.x) ? -1: 1);
             if (check_collision_at(p_ent, check_pos, p_bbox->size, &tilemap))
             {
                 p_ctransform->velocity.x *= -p_ctransform->bounce_coeff;
@@ -889,7 +889,7 @@ void tile_collision_system(Scene_t* scene)
         if ((collide_side & (1<<1)) || (collide_side & (1)))
         {
             Vector2 check_pos = p_ent->position;
-            check_pos.y += p_ctransform->velocity.y * scene->delta_time;
+            check_pos.y += (signbit(p_ctransform->velocity.y) ? -1: 1);
             if (check_collision_at(p_ent, check_pos, p_bbox->size, &tilemap))
             {
                 p_ctransform->velocity.y *= -p_ctransform->bounce_coeff;