35 lines
914 B
C++
35 lines
914 B
C++
#pragma once
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#include <stdint.h>
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#include "../datatypes.cpp"
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#include "../helpers.cpp"
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#include "../buffer.cpp"
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#include "shader.cpp"
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namespace UwU {
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class HGradientShader{
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public:
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HGradientShader(uint16_t x0, Color color0, uint16_t x1, Color color1) {
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this->shaderType = HGRADIENTSHADER;
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this->x0 = x0;
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this->shaderColor0 = color0;
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this->scale = 0xffffffff / (1 + (uint32_t)x1 - (uint32_t)x0);
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this->shaderColor1 = color1;
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}
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ShaderType shaderType;
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uint16_t x0;
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Color shaderColor0;
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uint32_t scale;
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Color shaderColor1;
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Color hGradient(uint16_t u, uint16_t v) {
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(void)v;
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uint32_t t = (((uint32_t)u - (uint32_t)x0) * scale) / 0x01000000;
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// if (v == 42) {
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// printf("(%u, %u)\n", u, t);
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// }
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return Helpers::lerpColor(shaderColor0, shaderColor1, (uint8_t)t);
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}
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};
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} |