84 lines
1.7 KiB
Go
84 lines
1.7 KiB
Go
package game
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import (
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"tetris/engine/core"
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"tetris/engine/graphics"
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)
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type Shape struct {
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typ ShapeType
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coordinates [3]core.Vec2i8
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}
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func NewShape(typ ShapeType) Shape {
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var coordinates [3]core.Vec2i8
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switch typ {
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case SHAPE_O:
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coordinates = [3]core.Vec2i8{{X: 0, Y: 1}, {X: 1, Y: 0}, {X: 1, Y: 1}}
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case SHAPE_L:
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coordinates = [3]core.Vec2i8{{X: 0, Y: -1}, {X: 0, Y: 1}, {X: 1, Y: 1}}
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case SHAPE_J:
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coordinates = [3]core.Vec2i8{{X: 0, Y: -1}, {X: 0, Y: 1}, {X: -1, Y: 1}}
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case SHAPE_T:
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coordinates = [3]core.Vec2i8{{X: -1, Y: 0}, {X: 1, Y: 0}, {X: 0, Y: 1}}
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case SHAPE_Z:
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coordinates = [3]core.Vec2i8{{X: 1, Y: 0}, {X: 0, Y: -1}, {X: -1, Y: -1}}
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case SHAPE_S:
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coordinates = [3]core.Vec2i8{{X: -1, Y: 0}, {X: 0, Y: -1}, {X: 1, Y: -1}}
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case SHAPE_I:
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coordinates = [3]core.Vec2i8{{X: 0, Y: 1}, {X: 0, Y: -1}, {X: 0, Y: -2}}
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}
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return Shape{
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typ: typ,
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coordinates: coordinates,
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}
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}
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func (s Shape) Type() ShapeType {
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return s.typ
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}
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func (s Shape) GetBlock() Block {
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return s.typ.GetBlock()
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}
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func (s Shape) Tile() graphics.Tile {
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return s.GetBlock().Tile()
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}
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func (s Shape) Coordinates() [4]core.Vec2i8 {
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return [4]core.Vec2i8{
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{}, // first coordinate is always zero
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s.coordinates[0],
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s.coordinates[1],
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s.coordinates[2],
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}
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}
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func (s Shape) RotateCW() Shape {
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rotated := [3]core.Vec2i8{}
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for i, block := range s.coordinates {
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block.X, block.Y = -1*block.Y, block.X
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rotated[i] = block
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}
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return Shape{
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typ: s.typ,
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coordinates: rotated,
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}
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}
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func (s Shape) RotateCCW() Shape {
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rotated := [3]core.Vec2i8{}
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for i, block := range s.coordinates {
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block.X, block.Y = block.Y, -1*block.X
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rotated[i] = block
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}
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return Shape{
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typ: s.typ,
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coordinates: rotated,
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}
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}
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