62 lines
1.5 KiB
Odin
62 lines
1.5 KiB
Odin
package main
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import rl "vendor:raylib"
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import "core:strings"
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CART_WIDTH :: 160
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CART_HEIGHT :: 205
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Cart :: struct {
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image : rl.Image,
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texture : rl.Texture,
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loaded : bool,
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}
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CartLoadError :: enum {
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None,
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Wrong_Size,
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Allocation_Error,
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Wrong_Type
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}
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loadCart :: proc(target: ^Cart, filename: cstring) -> CartLoadError {
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if !strings.has_suffix(string(filename), ".png") {
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return .Wrong_Type
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}
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unloadCart(target)
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target.image = rl.LoadImage(filename)
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if target.image.width != CART_WIDTH || target.image.height != CART_HEIGHT {
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return CartLoadError.Wrong_Size
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}
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target.texture = rl.LoadTextureFromImage(target.image)
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rl.SetTextureFilter(target.texture, .POINT)
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target.loaded = true
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return CartLoadError.None
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}
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unloadCart :: proc(target: ^Cart) {
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if target.loaded {
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rl.UnloadTexture(target.texture)
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rl.MemFree(target.image.data)
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}
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target.loaded = false
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}
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convertCart :: proc(cart: rl.Image, target: rl.Image) -> rl.Image {
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newCartImage := rl.ImageCopy(target)
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for x : i32 = 0; x < newCartImage.width; x += 1 {
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for y : i32 = 0; y < newCartImage.height; y += 1{
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targetCol := rl.GetImageColor(target, x, y)
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sourceCol := rl.GetImageColor(cart, x, y)
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newCol := rl.Color{
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targetCol.r & 0b11111100 | sourceCol.r & 0b00000011,
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targetCol.g & 0b11111100 | sourceCol.g & 0b00000011,
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targetCol.b & 0b11111100 | sourceCol.b & 0b00000011,
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targetCol.a & 0b11111100 | sourceCol.a & 0b00000011,
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}
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rl.ImageDrawPixel(&newCartImage, x, y, newCol)
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}
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}
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return newCartImage
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}
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