mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2025-01-13 04:22:05 +01:00
70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
/*
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Copyright 2014 Hajime Hoshi
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package blocks
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import (
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"github.com/hajimehoshi/ebiten"
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"image/color"
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)
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func init() {
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texturePaths["font"] = "images/blocks/font.png"
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}
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const charWidth = 8
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const charHeight = 8
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func textWidth(str string) int {
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return charWidth * len(str)
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}
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func drawText(context ebiten.GraphicsContext, textures *Textures, str string, x, y, scale int, clr color.Color) {
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fontTextureId := textures.GetTexture("font")
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parts := []ebiten.TexturePart{}
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locationX := 0
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locationY := 0
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for _, c := range str {
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if c == '\n' {
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locationX = 0
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locationY += charHeight
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continue
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}
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code := int(c)
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x := (code % 16) * charWidth
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y := ((code - 32) / 16) * charHeight
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parts = append(parts, ebiten.TexturePart{
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LocationX: locationX,
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LocationY: locationY,
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Source: ebiten.Rect{x, y, charWidth, charHeight},
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})
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locationX += charWidth
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}
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geoMat := ebiten.GeometryMatrixI()
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geoMat.Scale(float64(scale), float64(scale))
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geoMat.Translate(float64(x), float64(y))
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clrMat := ebiten.ColorMatrixI()
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clrMat.Scale(clr)
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context.Texture(fontTextureId).Draw(parts, geoMat, clrMat)
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}
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func drawTextWithShadow(context ebiten.GraphicsContext, textures *Textures, str string, x, y, scale int, clr color.Color) {
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drawText(context, textures, str, x+1, y+1, scale, color.RGBA{0, 0, 0, 0x80})
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drawText(context, textures, str, x, y, scale, clr)
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}
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