mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 04:57:26 +01:00
105 lines
2.2 KiB
Go
105 lines
2.2 KiB
Go
// Copyright 2014 Hajime Hoshi
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package ebiten_test
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import (
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. "github.com/hajimehoshi/ebiten"
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"testing"
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)
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func TestGeometryInit(t *testing.T) {
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var m GeoM
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for i := 0; i < GeoMDim-1; i++ {
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for j := 0; j < GeoMDim; j++ {
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got := m.Element(i, j)
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want := 0.0
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if i == j {
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want = 1
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}
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if want != got {
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t.Errorf("m.Element(%d, %d) = %f, want %f", i, j, got, want)
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}
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}
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}
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m.Add(m)
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for i := 0; i < GeoMDim-1; i++ {
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for j := 0; j < GeoMDim; j++ {
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got := m.Element(i, j)
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want := 0.0
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if i == j {
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want = 2
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}
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if want != got {
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t.Errorf("m.Element(%d, %d) = %f, want %f", i, j, got, want)
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}
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}
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}
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}
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func TestGeometryAssign(t *testing.T) {
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m := GeoM{}
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m.SetElement(0, 0, 1)
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m2 := m
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m.SetElement(0, 0, 0)
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got := m2.Element(0, 0)
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want := 1.0
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if want != got {
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t.Errorf("m2.Element(%d, %d) = %f, want %f", 0, 0, got, want)
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}
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}
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func TestGeometryConcat(t *testing.T) {
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matrix1 := GeoM{}
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matrix1.Scale(2, 2)
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matrix2 := GeoM{}
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matrix2.Translate(1, 1)
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matrix3 := matrix1
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matrix3.Concat(matrix2)
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expected := [][]float64{
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{2, 0, 1},
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{0, 2, 1},
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}
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for i := 0; i < 2; i++ {
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for j := 0; j < 3; j++ {
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got := matrix3.Element(i, j)
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want := expected[i][j]
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if want != got {
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t.Errorf("matrix3.Element(%d, %d) = %f,"+
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" want %f",
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i, j, got, want)
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}
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}
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}
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matrix4 := matrix2
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matrix4.Concat(matrix1)
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expected = [][]float64{
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{2, 0, 2},
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{0, 2, 2},
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}
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for i := 0; i < 2; i++ {
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for j := 0; j < 3; j++ {
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got := matrix4.Element(i, j)
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want := expected[i][j]
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if want != got {
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t.Errorf("matrix4.Element(%d, %d) = %f, want %f",
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i, j, got, want)
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}
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}
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}
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}
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