146 lines
4.2 KiB
GDScript
146 lines
4.2 KiB
GDScript
tool
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extends MeshInstance
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var signature
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var u0
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var xoffset
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var yoffset
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var minheight
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var maxheight
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var heightscale
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var xverticesnumber
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var yverticesnumber
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var stretch
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var u1
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var u2
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var u3
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var u4
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var version
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var u6
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var u7
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var u8
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var tex
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var edges
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var file = File.new()
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var vertices = []
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var triangles = []
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func _on_MeshInstance_ready():
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readgti("res://default.gti")
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var st = SurfaceTool.new()
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st.begin(Mesh.PRIMITIVE_TRIANGLES)
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for v in triangles:
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st.add_color(Color(v[4] / 255.0, v[5] / 255.0, v[6] / 255.0))
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st.add_vertex(Vector3(v[0], v[2], v[1]))
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var m = st.commit()
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mesh = m
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func fill():
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# fill read values
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# print("fill")
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var p = 0
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while p < xverticesnumber * yverticesnumber:
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var b = file.get_8()
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if b >= 0x80:
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while b != 0x00:
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if p >= xverticesnumber * yverticesnumber:
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return
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b = (b + 1) & 0xFF
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p+=1
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else:
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while b != 0xff:
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if p >= xverticesnumber * yverticesnumber:
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return
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if version != 7:
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vertices[p][2] = file.get_float() * heightscale # height
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vertices[p][3] = file.get_8() # triangulation
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vertices[p][4] = file.get_8() # R
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vertices[p][5] = file.get_8() # G
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vertices[p][6] = file.get_8() # B
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else:
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vertices[p][2] = file.get_float() * heightscale # height
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vertices[p][3] = file.get_8() # triangulation
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vertices[p][4] = file.get_8() # R
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vertices[p][5] = file.get_8() # G
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vertices[p][6] = file.get_8() # B
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var unk = file.get_8() # unk
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# print("["+ str(vertices[p][0]) + ", "+ str(vertices[p][1])+", "+ str(vertices[p][2])+", "+ str(vertices[p][3])+", "+ str(vertices[p][4])+", "+ str(vertices[p][5])+", "+ str(vertices[p][6])+", "+str(b)+"]")
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p+=1
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b = (b - 1) & 0xFF
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func readgti(filename):
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file.open(filename, File.READ)
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if not file.is_open():
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get_tree().quit()
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return
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signature = file.get_32()
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u0 = file.get_32()
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xoffset = file.get_float()
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yoffset = file.get_float()
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minheight = file.get_float()
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maxheight = file.get_float()
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xverticesnumber = file.get_32()
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yverticesnumber = file.get_32()
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stretch = file.get_float()
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stretch = 40.0
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heightscale = stretch/40.0 # normal stretch
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u1 = file.get_float()
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u2 = file.get_float()
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u3 = file.get_float()
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u4 = file.get_float()
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version = file.get_16()
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u6 = file.get_16()
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u7 = file.get_float()
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u8 = file.get_float()
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tex = file.get_buffer(32).get_string_from_ascii()
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vertices.resize(xverticesnumber * yverticesnumber)
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# initialize empty terrain
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# print("init")
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for y in range(yverticesnumber):
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for x in range(xverticesnumber):
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vertices[y * xverticesnumber + x] = []
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vertices[y * xverticesnumber + x].append(xoffset + x * stretch) # 0: x
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vertices[y * xverticesnumber + x].append(yoffset + y * stretch) # 1: y
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vertices[y * xverticesnumber + x].append(minheight) # 2: height
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vertices[y * xverticesnumber + x].append(0) # 3: triangulation value
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vertices[y * xverticesnumber + x].append(0) # 4: R
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vertices[y * xverticesnumber + x].append(0) # 5: G
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vertices[y * xverticesnumber + x].append(0) # 6: B
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fill()
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file.close()
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# sort triangles
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# print("sort")
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var i = 0
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# triangles.resize(2*len(vertices))
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for y in range(yverticesnumber-1):
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for x in range(xverticesnumber-1):
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var b = (vertices[y * xverticesnumber + x][3] & 7) % 128
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if b == 4 or b == 5 or b == 7:
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triangles.append(vertices[(y+1) * xverticesnumber + x])
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triangles.append(vertices[y * xverticesnumber + x])
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triangles.append(vertices[(y+1) * xverticesnumber + (x+1)])
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if b == 5 or b == 3:
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triangles.append(vertices[y * xverticesnumber + (x + 1)])
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triangles.append(vertices[y * xverticesnumber + x])
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triangles.append(vertices[(y + 1) * xverticesnumber + (x + 1)])
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for y in range (yverticesnumber-1):
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for x in range(xverticesnumber-1):
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var b = (vertices[y * xverticesnumber + x][3] & 7) % 128
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if b == 1 or b == 6:
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triangles.append(vertices[(y + 1) * xverticesnumber + x])
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triangles.append(vertices[y * xverticesnumber + x])
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triangles.append(vertices[y * xverticesnumber + (x + 1)])
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if b == 2 or b == 6:
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triangles.append(vertices[y * xverticesnumber + (x + 1)])
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triangles.append(vertices[(y + 1) * xverticesnumber + x])
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triangles.append(vertices[(y + 1) * xverticesnumber + (x + 1)])
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