John McCardle
9a06ae5d8e
Textures can now specify display_size and display_origin to crop sprite
rendering to a sub-region within each atlas cell. This supports texture
atlases where content doesn't fill the entire cell (e.g., 16x24 sprites
centered in 32x32 cells).
API: Texture("sprites.png", 32, 32, display_size=(16, 24), display_origin=(8, 4))
Properties: display_width, display_height, display_offset_x, display_offset_y
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
60 lines
2.9 KiB
Python
60 lines
2.9 KiB
Python
"""Test texture display bounds for non-uniform sprite content (#235).
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Verifies that Texture accepts display_size and display_origin parameters
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to crop sprite rendering to a sub-region within each atlas cell.
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"""
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import mcrfpy
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import sys
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def test_default_display_bounds():
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"""Without display bounds, display dims equal sprite dims."""
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tex = mcrfpy.Texture("assets/kenney_tinydungeon.png", 16, 16)
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assert tex.display_width == 16, f"Expected 16, got {tex.display_width}"
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assert tex.display_height == 16, f"Expected 16, got {tex.display_height}"
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assert tex.display_offset_x == 0, f"Expected 0, got {tex.display_offset_x}"
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assert tex.display_offset_y == 0, f"Expected 0, got {tex.display_offset_y}"
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print(" PASS: default display bounds")
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def test_custom_display_size():
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"""display_size crops sprite content within cells."""
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tex = mcrfpy.Texture("assets/kenney_tinydungeon.png", 16, 16,
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display_size=(12, 14))
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assert tex.display_width == 12, f"Expected 12, got {tex.display_width}"
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assert tex.display_height == 14, f"Expected 14, got {tex.display_height}"
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assert tex.sprite_width == 16, f"sprite_width should be unchanged: {tex.sprite_width}"
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assert tex.sprite_height == 16, f"sprite_height should be unchanged: {tex.sprite_height}"
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print(" PASS: custom display size")
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def test_custom_display_origin():
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"""display_origin offsets content within cells."""
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tex = mcrfpy.Texture("assets/kenney_tinydungeon.png", 16, 16,
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display_size=(12, 14), display_origin=(2, 1))
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assert tex.display_offset_x == 2, f"Expected 2, got {tex.display_offset_x}"
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assert tex.display_offset_y == 1, f"Expected 1, got {tex.display_offset_y}"
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print(" PASS: custom display origin")
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def test_display_bounds_sprite_creation():
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"""Sprites created from bounded textures should work in UI elements."""
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tex = mcrfpy.Texture("assets/kenney_tinydungeon.png", 16, 16,
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display_size=(12, 14), display_origin=(2, 1))
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sprite = mcrfpy.Sprite(pos=(10, 10), texture=tex, sprite_index=0)
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assert sprite is not None, "Sprite creation with display bounds failed"
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print(" PASS: sprite creation with display bounds")
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def test_display_bounds_in_grid():
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"""Entities using bounded textures should render in grids."""
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tex = mcrfpy.Texture("assets/kenney_tinydungeon.png", 16, 16,
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display_size=(12, 14), display_origin=(2, 1))
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grid = mcrfpy.Grid(grid_size=(10, 10), texture=tex)
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entity = mcrfpy.Entity(grid_pos=(3, 3), texture=tex, sprite_index=5, grid=grid)
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assert entity is not None, "Entity creation with display bounds failed"
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print(" PASS: entity with display bounds in grid")
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print("Testing #235: Texture display bounds...")
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test_default_display_bounds()
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test_custom_display_size()
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test_custom_display_origin()
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test_display_bounds_sprite_creation()
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test_display_bounds_in_grid()
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print("All #235 tests passed.")
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sys.exit(0)
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